A device for assembling automotive seatbelt trigger switches and its assembly method

Abstract

This invention relates to the technical field of assembling automotive seatbelt trigger switches, and more particularly to an assembly device and method for assembling automotive seatbelt trigger switches. The device includes a main body and, sequentially arranged around the main body, a housing loading station, a short spring assembly station, a stationary spring assembly station, a moving spring assembly station, a spring assembly station, a push block assembly station, a top cover assembly station, an unloading station, and a loading device. The main body is equipped with several carriers that can rotate around the center of the main body, and the positions of the carriers on the main body are adapted to the positions of the various stations. The loading device grasps the cut parts from the short spring assembly station, the stationary spring assembly station, and the moving spring assembly station and loads them into the corresponding carriers. This structure and assembly method significantly improve the assembly efficiency of automotive seatbelt trigger switches, enhance production flexibility, ensure product quality, and save costs.

Description

Technical Field

[0001] This invention relates to the technical field of assembling automotive seat belt trigger switches, and more particularly to an automotive seat belt trigger switch assembly device and its assembly method. Background Technology

[0002] Existing automotive seatbelt trigger switch assembly equipment and methods often rely heavily on manual operation, which not only limits production speed but also increases the risk of human error. Due to the limitations of manual operation, each step in the assembly process requires a significant amount of time and effort, thus impacting overall production efficiency. Furthermore, existing automotive seatbelt trigger switch assembly equipment has a low degree of automation, making it difficult to achieve rapid and continuous production, further restricting the improvement of assembly efficiency.

[0003] Secondly, regarding production flexibility, existing automotive seatbelt trigger switch assembly equipment is often limited by equipment structure and processes, making it difficult to adapt to the assembly of housings and components of different sizes and specifications. This results in a lack of sufficient flexibility in the production line when facing market changes and adjustments in customer demand, hindering rapid response and requiring significant time and resources, further reducing production flexibility.

[0004] Regarding product quality assurance, existing automotive seatbelt trigger switch assembly equipment often lacks precise positioning and assembly technology, leading to deviations and misalignments between components. This not only affects the product's appearance but may also impact its performance and safety. Furthermore, the testing methods used in existing automotive seatbelt trigger switch assembly equipment are relatively outdated, making comprehensive and accurate quality inspection difficult, thus increasing the risk of defective products.

[0005] Finally, regarding cost savings, existing technologies suffer from high production costs due to their reliance on extensive manual labor and low level of automation. Furthermore, limitations in equipment structure and processes prevent existing automotive seatbelt trigger switch assembly equipment from achieving full utilization of raw materials and minimizing waste, further increasing production costs. Summary of the Invention

[0006] The purpose of this invention is to provide an assembly device and method for automotive seat belt trigger switches, addressing the deficiencies in existing technologies, thereby significantly improving the assembly efficiency of automotive seat belt trigger switches, enhancing production flexibility, ensuring product quality, and saving costs.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: an automotive seat belt trigger switch assembly device, comprising a device body and, sequentially arranged around the device body, a housing loading station, a short spring assembly station, a stationary spring assembly station, a moving spring assembly station, a spring assembly station, a push block assembly station, a top cover assembly station, an unloading station, and a loading device; the device body is provided with a plurality of carriers that can rotate around the center of the device body, and the positions of the carriers on the device body are adapted to the positions between each station; the loading device grabs the cut objects in the short spring assembly station, the stationary spring assembly station, and the moving spring assembly station and loads them into the corresponding carriers.

[0008] Furthermore, the carrier includes a carrier reference surface and a carrier top block disposed outside the direction of the carrier reference surface. The carrier top block extends and retracts with the carrier roller disposed below the carrier. A first detection mechanism and a second detection mechanism are also provided. The first detection mechanism detects the assembly results of the corresponding positions of the carrier at the housing loading station, the short spring assembly station, the stationary plate assembly station, and the moving plate assembly station. The second detection mechanism detects the assembly results of the corresponding positions of the carrier at the spring assembly station and the push block assembly station. A laser marking station is also provided.

[0009] Furthermore, the short spring assembly station includes a short spring feeding belt, a short spring feeding needle, a short spring cutter, a short spring pressure roller, and a short spring detection mechanism. The short spring feeding needle drives the short spring feeding belt to move towards the short spring cutter, and the short spring cutter cuts the short spring. Separate feeding spaces are provided on both sides of the short spring feeding belt at the assembly station, corresponding to the position of the short spring feeding needle. The feeding spaces on both sides are a semi-enclosed groove and a fully enclosed groove, respectively. The short spring pressure roller is equipped with... A spring assists the short spring pressure roller in pressing the material. The short spring pressure roller is a roller, and its inclined direction is the same as the feeding direction of the short spring feeding belt. The short spring cutter includes an upper short spring cutter, a lower short spring cutter, and a short spring cutter auxiliary telescopic block. The upper short spring cutter is provided with an upper short spring cutter avoidance. The lower short spring cutter is lifted upward by a secondary ramp below the short spring assembly station and a cooperating roller. The cooperating roller is also connected to a fixing pin, which inserts upward into the short spring feeding belt and fixes it.

[0010] Furthermore, the stationary sheet assembly station includes a stationary sheet feeding belt, a stationary sheet feeding needle, a stationary sheet cutter, a stationary sheet pressing wheel, and a stationary sheet detection mechanism. The stationary sheet cutter includes an upper-level stationary sheet cutter and a lower-level stationary sheet cutter. The upper-level stationary sheet cutter consists of two cutters distributed at right angles, and the upper-level stationary sheet cutter has a trapezoidal structure with a downward angle.

[0011] Furthermore, the moving piece assembly station includes a moving piece feeding belt, a moving piece feeding needle, a moving piece cutter, a moving piece pressing wheel, and a moving piece detection mechanism. The moving piece cutter includes an upper moving piece cutter and a lower moving piece cutter. The upper moving piece cutter is provided with a three-level gradient avoidance space in the horizontal direction.

[0012] Furthermore, the spring assembly station includes a staggered feeding mechanism, a dovetail groove, a push rod, a spring staggered block, a primary staggered spring for storing the spring, a secondary staggered spring for misaligning the spring to the spring positioning space, and a spring pressing block above the spring positioning space for pressing the spring into the corresponding carrier; a spring detection light curtain is also provided, which unfolds a layer of light curtain to detect the spring.

[0013] Furthermore, the push block assembly station includes a staggered feeding mechanism, a vacuum suction platform, a vacuum nozzle, and a spring hook. The spring hook has a two-stage hooking action to avoid the short spring. After avoiding the short spring, the spring hook descends again to perform a two-stage hooking action.

[0014] Furthermore, the loading device includes a loading claw and a loading pin. The loading pin is disposed in a groove separately provided by the loading claw. A spring is provided at the top of the loading claw, and a protrusion is provided at the bottom of the loading claw. The gripping device grips the cut static piece in the static piece assembly station in the horizontal direction and loads it into the corresponding secondary positioning device.

[0015] Furthermore, a gripping device and a secondary positioning device are also provided. The gripping device grips the cut objects in the short spring assembly station, the stationary piece assembly station, and the moving piece assembly station and loads them into the corresponding secondary positioning device. The secondary positioning device is provided with a positioning groove and a secondary positioning detection mechanism adapted to the position of the positioning groove. The gripping device is provided with a gripping claw that gradually bends in the front direction and a gripping device displacement structure.

[0016] A method for assembling a car seatbelt trigger switch.

[0017] S1: The shell loading station loads the shell into the carrier, and the carrier completes the loading of shells of different sizes through the cooperation of the carrier top block and the carrier rollers;

[0018] S2: The carrier with the housing is transferred to the short spring assembly station. The short spring feeding needle drives the short spring feeding belt to move towards the short spring cutter and is pressed by the short spring pressing wheel to keep the belt stable. The lower-level short spring cutter is lifted upward by the secondary ramp and the cooperating roller below the short spring assembly station. The fixing pin of the cooperating roller passes upward through the short spring feeding belt and fixes it. The short spring cutter is assisted by the telescopic block. The lower-level short spring cutter cooperates with the upper-level short spring cutter to cut the short spring. The gripping device grips the short spring and loads it into the positioning groove of the corresponding secondary positioning device and is detected by the secondary positioning detection mechanism. Then, the loading claw of the loading device grips the short spring to the corresponding carrier with the housing and lowers it. With the retraction of the loading claw and the continuous descent of the loading needle, the short spring is loaded into the carrier.

[0019] S3: The carrier that has completed the short spring assembly process is transferred to the stationary spring assembly station. The stationary spring feeding needle drives the stationary spring feeding belt to move towards the stationary spring cutter and is pressed by the stationary spring pressing wheel to keep the belt stable. The lower stationary spring cutter is lifted upward through the secondary ramp and the cooperating roller below the stationary spring assembly station. The fixing pin of the cooperating roller passes upward through the stationary spring feeding belt and fixes it. The upper stationary spring cutter cooperates with the lower stationary spring cutter to cut the stationary spring. The gripping device grips the stationary spring and loads it into the positioning groove of the corresponding secondary positioning device and is detected by the secondary positioning detection mechanism. Then, the loading claw of the loading device grips the stationary spring to the corresponding carrier position with the housing and descends. With the retraction of the loading claw and the continuous descent of the loading needle, the stationary spring is loaded into the carrier.

[0020] S4: The carrier that has completed the static piece assembly process is transferred to the moving piece assembly station. The moving piece feeding needle drives the moving piece feeding belt to move towards the moving piece cutter and the moving piece pressing wheel keeps the belt stable. The lower moving piece cutter is lifted upward through the secondary ramp and the cooperating roller below the moving piece assembly station. The fixing pin of the cooperating roller passes upward through the moving piece feeding belt and fixes it. The upper moving piece cutter cooperates with the lower moving piece cutter to cut the moving piece. The gripping device grips the moving piece and loads it into the positioning groove of the corresponding secondary positioning device and is detected by the secondary positioning detection mechanism. Then, the loading claw of the loading device grips the moving piece to the corresponding carrier position with the housing and lowers it. With the retraction of the loading claw and the continuous descent of the loading needle, the moving piece is loaded into the carrier.

[0021] S5: The carrier that has completed the moving piece assembly process is transferred to the first inspection mechanism, and the first inspection mechanism inspects the assembly results of the housing loading station, the short spring assembly station, the stationary piece assembly station, and the moving piece assembly station.

[0022] S6: The carrier that has completed the first detection mechanism position detection process is transferred to the spring assembly station. The spring is fed by the misaligned feeding mechanism and enters the dovetail groove. The push rod presses the spring into the spring misalignment block along the dovetail groove. The spring misalignment block stores the spring by first-level misalignment. Then, the spring misalignment block misaligns the spring to the spring positioning space by second-level misalignment. Then, the spring pressing block above the spring positioning space presses the spring into the corresponding carrier. The spring detection light curtain unfolds a layer of light curtain to detect the spring.

[0023] S7: The carrier that has completed the spring assembly process is transferred to the push block assembly station. The push block is fed by the staggered feeding mechanism and moved to the vacuum suction nozzle by the vacuum suction platform. Then, the vacuum suction nozzle prepares to load the push block into the carrier. Before the loading action, the spring hook pulls part of the spring height into the carrier to avoid the short spring. After the spring hook avoids the short spring, it descends again to fully hook the spring and pulls it to the bottom of the carrier in a second hooking action. Then, the vacuum suction nozzle cooperates with the pressure block to load the push block into the carrier.

[0024] S8: The carrier that has completed the push block assembly is transferred to the second detection mechanism, and the second detection mechanism performs assembly result detection on the spring assembly station and the push block assembly station;

[0025] S9: The carrier that has completed the second detection mechanism position detection process is transferred to the laser marking station and the product is laser marked;

[0026] S10: The carrier that has completed the laser marking process is transferred to the upper cover assembly station and the upper cover is assembled.

[0027] S11: The carrier with the top cover assembled is transferred to the unloading station, and the products in the carrier are unloaded by the unloading station.

[0028] The system comprises a main body and, sequentially arranged around it, a housing loading station, a short spring assembly station, a stationary spring assembly station, a moving spring assembly station, a spring assembly station, a push block assembly station, a top cover assembly station, an unloading station, and a loading device. The main body is equipped with several carriers that can rotate around its center, the positions of which correspond to the positions of the various stations. The loading device picks up cut parts from the short spring assembly station, the stationary spring assembly station, and the moving spring assembly station and loads them into the corresponding carriers. This structure and assembly method significantly improve the assembly efficiency of automotive seatbelt trigger switches, enhance production flexibility, ensure product quality, and save costs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of an automotive seatbelt trigger switch assembly device according to the present invention;

[0031] Figure 2 This is a schematic diagram from another perspective of an automotive seatbelt trigger switch assembly device according to the present invention;

[0032] Figure 3 This is a schematic diagram of the short spring assembly station of the present invention;

[0033] Figure 4 This is a top view of the short spring assembly station of the present invention;

[0034] Figure 5 This is a front view of the short spring assembly station of the present invention;

[0035] Figure 6 This is a schematic diagram of the static sheet assembly station of the present invention;

[0036] Figure 7 This is a schematic diagram of the short spring cutter of the present invention;

[0037] Figure 8 This is a schematic diagram of the stationary sheet cutter of the present invention;

[0038] Figure 9 This is a schematic diagram of the moving piece assembly station and gripping device of the present invention;

[0039] Figure 10 This is a schematic diagram of the moving blade cutter of the present invention;

[0040] Figure 11 This is a schematic diagram of the spring assembly station of the present invention;

[0041] Figure 12 This is a schematic diagram of the spring positioning space according to the present invention;

[0042] Figure 13 This is a schematic diagram of the push block assembly station of the present invention;

[0043] Figure 14 This is a schematic diagram of the spring hook of the present invention;

[0044] Figure 15 This is a schematic diagram of the vehicle of the present invention;

[0045] Figure 16 This is a front view of the vehicle of the present invention;

[0046] Figure 17 This is a schematic diagram of the secondary positioning device of the present invention;

[0047] Figure 18 This is a schematic diagram of the loading device of the present invention;

[0048] Figure 19 An exploded view of the automotive seatbelt trigger switch of the present invention (from top to bottom: top cover, short spring, moving piece, spring, slider, stationary piece, housing);

[0049] Figure 20 This is a schematic diagram of the spring detection light curtain of the present invention.

[0050] Figure label:

[0051] Housing loading station 1, short spring assembly station 2, short spring feeding belt 2-1, short spring feeding needle 2-2, short spring cutter 2-3, upper-level short spring cutter 2-3-1, upper-level short spring cutter clearance 2-3-1-1, lower-level short spring cutter 2-3-2, short spring cutter auxiliary telescopic block 2-3-3, short spring pressure roller 2-4, short spring detection mechanism 2-5, stationary spring assembly station 3, stationary spring feeding belt 3-1, stationary spring feeding needle 3-2, stationary spring cutter 3-3, upper-level stationary spring cutter 3-3-1, lower-level stationary spring cutter 3-3-2, stationary spring pressure roller 3-4, stationary spring detection mechanism 3-5, moving spring assembly station 4, moving spring feeding belt 4-1, moving spring feeding needle 4-2, moving spring cutter 4-3, upper-level moving spring cutter 4-3-1, lower 4-3-2 Moving plate cutter, 4-4 Moving plate pressing wheel, 4-5 Moving plate detection mechanism, 5 First detection mechanism, 6 Spring assembly station, 6-1 Dovetail groove and push rod, 6-2 Spring misalignment block, 6-3 Spring positioning space, 6-4 Pressing block, 6-5 Spring detection light curtain, 7 Push block assembly station, 7-1 Vacuum suction platform, 7-2 Vacuum suction nozzle, 7-3 Spring hook, 8 Second detection mechanism, 9 Top cover assembly station, 10 Laser marking station, 11 Unloading station, 12 Carrier, 12-1 Carrier reference surface, 12-2 Carrier top block, 12-3 Carrier roller, 13 Gripping device, 14 Secondary positioning device, 14-1 Positioning groove, 14-2 Secondary positioning detection mechanism, 15 Loading device, 15-1 Loading claw, 15-2 Loading pin. Detailed Implementation

[0052] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0053] In the description of this invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships 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.

[0054] An assembly device for automotive seatbelt trigger switches, such as Figure 1 , 2As shown, the device includes a main body and, sequentially arranged around the main body, a housing loading station 1, a short spring assembly station 2, a stationary spring assembly station 3, a moving spring assembly station 4, a spring assembly station 6, a push block assembly station 7, a top cover assembly station 9, an unloading station 11, and a loading device 15. The main body is equipped with several carriers 12 that can rotate around the center of the main body, and the positions of the carriers 12 on the main body are adapted to the positions of each station. The loading device 15 grabs the cut objects from the short spring assembly station 2, the stationary spring assembly station 3, and the moving spring assembly station 4 and loads them into the corresponding carriers 12.

[0055] Specifically, the system comprises a main body and, sequentially arranged around it, a housing loading station 1, a short spring assembly station 2, a stationary spring assembly station 3, a moving spring assembly station 4, a spring assembly station 6, a push block assembly station 7, a top cover assembly station 9, an unloading station 11, and a loading device 15. The main body is equipped with several carriers 12 that can rotate around its center, the positions of which correspond to the positions of the various stations. The loading device 15 grips the short spring assembly station 2, the... The cut parts are processed at the stationary piece assembly station 3 and the moving piece assembly station 4 and loaded into the corresponding carrier 12, thereby loading the shell into the carrier 12 at the shell loading station 1. The carrier 12, now containing the shell, is then transferred to the short spring assembly station 2 for short spring assembly. After the short spring assembly, the carrier 12 is transferred to the stationary piece assembly station 3 for stationary piece assembly. Finally, the carrier 12 is transferred to the moving piece assembly station 4 for moving piece assembly. The carrier 12, having completed the moving piece assembly process, is transferred to the spring assembly station 6 for spring assembly. Then, the carrier 12, having completed the spring assembly process, is transferred to the push block assembly station 7 for push block assembly. Next, the carrier 12, having completed the push block assembly process, is transferred to the top cover assembly station 9 for top cover assembly. Finally, the carrier 12, having completed the top cover assembly process, is transferred to the unloading station 11 for unloading. This arrangement of stations automates the entire process from shell loading to unloading. Following the assembly flow, the stations are arranged sequentially, making the assembly process more orderly, reducing operational complexity, and allowing for smooth assembly of the various parts within the automotive seatbelt trigger switch. It also facilitates collaborative work between stations, enabling continuous operation, improving equipment utilization, ensuring the assembly quality of each automotive seatbelt trigger switch, and enhancing product reliability and stability. Furthermore, each station can be adjusted or replaced as needed to adapt to the assembly requirements of different models or specifications of seatbelt trigger switches, further improving the production efficiency of automotive seatbelt trigger switches while ensuring product quality.

[0056] As a preferred embodiment of the above, such as Figure 15 , 16 As shown, the carrier 12 includes a carrier reference surface 12-1 and a carrier top block 12-2 disposed outside the direction of the carrier reference surface 12-1. The carrier top block 12-2 extends and retracts with the carrier roller 12-3 disposed below the carrier 12. A first detection mechanism 5 and a second detection mechanism 8 are also provided. The first detection mechanism 5 detects the assembly results of the housing loading station 1, the short spring assembly station 2, the stationary plate assembly station 3, and the moving plate assembly station 4 at the corresponding positions of the carrier 12. The second detection mechanism 8 detects the assembly results of the spring assembly station 6 and the push block assembly station 7 at the corresponding positions of the carrier 12. A laser marking station 10 is also provided.

[0057] Specifically, the carrier 12 includes a carrier reference surface 12-1 and a carrier top block 12-2 disposed outside the direction of the carrier reference surface 12-1. The carrier top block 12-2 extends and retracts with the carrier rollers 12-3 disposed below the carrier 12. A first detection mechanism 5 and a second detection mechanism 8 are also provided. The first detection mechanism 5 detects the assembly results of the corresponding positions of the carrier 12 at the housing loading station 1, the short spring assembly station 2, the stationary plate assembly station 3, and the moving plate assembly station 4. The second detection mechanism 8 detects the assembly results of the corresponding positions of the carrier 12 at the spring assembly station 6 and the push block assembly station 7. A laser marking station 10 is also provided for loading the housing into the carrier 12 at the housing loading station 1. The carrier 12, through the cooperation of the carrier top block 12-2 and the carrier rollers 12-3, completes the loading of housings of different sizes. After completing the moving plate assembly process, the carrier 12 is transferred to the first... The first inspection mechanism 5 inspects the assembly results of the housing loading station 1, the short spring assembly station 2, the stationary plate assembly station 3, and the moving plate assembly station 4, and transfers the carrier 12 after completing the push block assembly to the second inspection mechanism 8. The second inspection mechanism 8 inspects the assembly results of the spring assembly station 6 and the push block assembly station 7, and sets the carrier 12 after completing the position detection process of the second inspection mechanism 8 to the laser marking station 10 for laser marking of the product. This provides a stable benchmark for the assembly of each component, ensures assembly accuracy, and maintains the overall stability of the carrier while adapting to the assembly requirements of different components. The real-time feedback from the inspection mechanism allows operators or the system to promptly identify and handle problems in the assembly process, preventing defective products from entering the next process, reducing the time and labor costs of manual inspection, improving overall production efficiency, and further improving the assembly efficiency and accuracy of the automotive seat belt trigger switch while ensuring product quality.

[0058] As a preferred embodiment of the above, such as Figure 3 , 4 As shown in Figure 5, the short spring assembly station 2 includes a short spring feeding belt 2-1, a short spring feeding needle 2-2, a short spring cutter 2-3, a short spring pressing wheel 2-4, and a short spring detection mechanism 2-5. The short spring feeding needle 2-2 drives the short spring feeding belt 2-1 to move towards the short spring cutter 2-3, and the short spring cutter 2-3 cuts the short spring. Separate feeding spaces are provided on both sides of the short spring feeding belt 2-1, which corresponds to the position of the short spring feeding needle 2-2, and the feeding spaces on both sides are a semi-enclosed groove and a fully enclosed groove, respectively. A spring auxiliary device is provided on the short spring pressing wheel 2-4. The short spring pressing roller 2-4 is used for pressing the material. The short spring pressing roller 2-4 is a roller, and its inclined direction is the same as the feeding direction of the short spring feeding belt 2-1. The short spring cutter 2-3 includes an upper short spring cutter 2-3-1, a lower short spring cutter 2-3-2, and a short spring cutter auxiliary telescopic block 2-3-3. The upper short spring cutter 2-3-1 is provided with an upper short spring cutter avoidance 2-3-1-1. The lower short spring cutter 2-3-2 is lifted upward by the secondary ramp below the short spring assembly station 2 and the cooperating roller. The cooperating roller is also connected to a fixing pin. The fixing pin passes upward through the short spring feeding belt 2-1 and is fixed.

[0059] Specifically, the short spring assembly station 2 includes a short spring feeding belt 2-1, a short spring feeding needle 2-2, a short spring cutter 2-3, a short spring pressing wheel 2-4, and a short spring detection mechanism 2-5. The short spring feeding needle 2-2 drives the short spring feeding belt 2-1 to move towards the short spring cutter 2-3, and the short spring cutter 2-3 cuts the short spring. Separate feeding spaces are provided on both sides of the short spring feeding belt 2-1 at the short spring assembly station 2, corresponding to the position of the short spring feeding needle 2-2. The feeding spaces on both sides are a semi-enclosed groove and a fully enclosed groove, respectively. A spring assists the short spring pressing wheel 2-4 in pressing the short spring. The short spring pressing wheel 2-4 is a roller, and its inclined direction is the same as the feeding direction of the short spring feeding belt 2-1.The short spring cutter 2-3 includes an upper short spring cutter 2-3-1, a lower short spring cutter 2-3-2, and a short spring cutter auxiliary telescopic block 2-3-3. The upper short spring cutter 2-3-1 is equipped with an upper short spring cutter avoidance 2-3-1-1. The lower short spring cutter 2-3-2 is lifted upward by a secondary ramp and a mating roller below the short spring assembly station 2. The mating roller is also connected to a fixing pin, which passes upward through the short spring feeding belt 2-1 and is fixed in place. Thus, the short spring cutter is transferred from the carrier 12 containing the housing to the short spring assembly station 2. The short spring feeding pin 2-2 drives the short spring feeding belt 2-1 towards the assembly station 2. The short spring cutter 2-3 moves in the direction described above and is pressed by the short spring pressing roller 2-4 to keep the material strip stable. The lower-level short spring cutter 2-3-2 is lifted upward by the secondary ramp below the short spring assembly station 2 and the cooperating roller. The fixing pin of the cooperating roller passes upward through the short spring feeding strip 2-1 and fixes it. The short spring cutter auxiliary telescopic block 2-3-3, the lower-level short spring cutter 2-3-2 cooperates with the upper-level short spring cutter 2-3-1 to complete the cutting of the short spring. The gripping device 13 grips the short spring and loads it into the positioning groove 14-1 of the corresponding secondary positioning device 14, and the secondary positioning detection mechanism 14-2 completes the detection. Subsequently, the loading claw 15-1 of the loading device 15 grabs the short spring sheet and lowers it to the corresponding position of the carrier 12 equipped with the housing. The retraction of the loading claw 15-1 and the continuous descent of the loading pin 15-2 load the short spring sheet into the carrier 12. By providing both semi-enclosed and fully enclosed grooves for loading, the loading process becomes more flexible, accommodating short spring sheets of different specifications or types, thus improving the equipment's versatility and adaptability. The fully enclosed groove design ensures the stability of the short spring sheet during loading, avoiding assembly problems caused by shaking or misalignment. Simultaneously, the addition of a spring allows the pressure roller 2-4 to adapt to different pressure levels during pressing. The pressure requirements ensure both the tightness of the pressing material and prevent damage to the short springs due to excessive pressure. The roller tilt of the pressing roller 2-4 is set in the same direction as the feeding direction, making the pressing process smoother and reducing assembly problems caused by friction or resistance. The short spring cutter 2-3 adopts a cooperative design of upper-level short spring cutter 2-3-1 and lower-level short spring cutter 2-3-2. The upper-level cutter 2-3-1 also has a clearance structure 2-3-1-1, which can accurately and safely complete the cutting of the short springs, further improving the cutting accuracy and efficiency, avoiding equipment damage or safety hazards caused by cutter collisions, thereby further improving the assembly efficiency and accuracy of the automotive seat belt trigger switch.

[0060] As a preferred embodiment of the above, such as Figure 6 , 7As shown, the stationary sheet assembly station 3 includes a stationary sheet feeding belt 3-1, a stationary sheet feeding needle 3-2, a stationary sheet cutter 3-3, a stationary sheet pressing wheel 3-4, and a stationary sheet detection mechanism 3-5. The stationary sheet cutter 3-3 includes an upper stationary sheet cutter 3-3-1 and a lower stationary sheet cutter 3-3-2. The upper stationary sheet cutter 3-3-1 consists of two cutters distributed at right angles and has a trapezoidal structure with the angle pointing downwards.

[0061] Specifically, the stationary spring assembly station 3 includes a stationary spring feeding belt 3-1, a stationary spring feeding needle 3-2, a stationary spring cutter 3-3, a stationary spring pressing roller 3-4, and a stationary spring detection mechanism 3-5. The stationary spring cutter 3-3 includes an upper-level stationary spring cutter 3-3-1 and a lower-level stationary spring cutter 3-3-2. The upper-level stationary spring cutter 3-3-1 consists of two cutters distributed at right angles and has a trapezoidal structure with a downward angle. This allows the carrier 12, which completes the short spring assembly process, to be transferred to the stationary spring assembly station 3. The stationary spring feeding needle 3-2 drives the... The stationary sheet feeding belt 3-1 moves towards the stationary sheet cutter 3-3 and is kept stable by the stationary sheet pressure roller 3-4. The lower-level stationary sheet cutter 3-3-2 is lifted upward by the secondary ramp below the stationary sheet assembly station 2 and the cooperating roller. The fixing pin of the cooperating roller passes upward through the stationary sheet feeding belt 3-1 and is fixed. The upper-level stationary sheet cutter 3-3-1 works with the lower-level stationary sheet cutter 3-3-2 to cut the stationary sheet. The gripping device 13 grips the stationary sheet and loads it into the positioning groove 14-1 of the corresponding secondary positioning device 14. The internal positioning and detection mechanism 14-2 performs the detection. Then, the loading claw 15-1 of the loading device 15 grabs the stationary piece and lowers it to the corresponding position on the carrier 12 containing the housing. The retraction of the loading claw 15-1 and the continuous descent of the loading pin 15-2 load the stationary piece into the carrier 12. This allows the stationary piece to be cut simultaneously by two right-angled cutters, improving cutting efficiency, shortening the assembly cycle, ensuring cutting accuracy and consistency, improving the quality of the stationary piece, and providing stability due to the right-angled cutter structure. This reduces cutting deviations caused by vibration or external forces. At the same time, the downward-angled trapezoidal structure can better adapt to stationary pieces of different shapes and sizes, expanding the applicability of the equipment. It also allows the cutting force to be evenly distributed on the stationary piece, reducing damage or deformation of the stationary piece caused by uneven cutting force. It can also reduce the generation of waste during the cutting process, reduce production costs, and further significantly improve the cutting efficiency and accuracy of the stationary piece. This reduces production costs while ensuring the stability and consistency of product quality, thereby further improving the assembly efficiency and accuracy of the automotive seat belt trigger switch.

[0062] As a preferred embodiment of the above, such as Figure 8 , 9As shown, the moving piece assembly station 4 includes a moving piece feeding belt 4-1, a moving piece feeding needle 4-2, a moving piece cutter 4-3, a moving piece pressing wheel 4-4, and a moving piece detection mechanism 4-5. The moving piece cutter 4-3 includes an upper moving piece cutter 4-3-1 and a lower moving piece cutter 4-3-2. The upper moving piece cutter 4-3-1 is provided with a three-level gradient avoidance space in the horizontal direction.

[0063] Specifically, the moving piece assembly station 4 includes a moving piece feeding belt 4-1, a moving piece feeding needle 4-2, a moving piece cutter 4-3, a moving piece pressing roller 4-4, and a moving piece detection mechanism 4-5. The moving piece cutter 4-3 includes an upper moving piece cutter 4-3-1 and a lower moving piece cutter 4-3-2. The upper moving piece cutter 4-3-1 has a three-level gradient clearance space structure in the transverse direction, thereby transferring the carrier 12 that completes the static piece assembly process to the moving piece assembly station 4. The moving piece feeding needle 4-2 drives the moving piece feeding belt 4-1 to move towards the moving piece cutter 4-3 and is pressed by the moving piece pressing roller 4-4. To maintain the stability of the feed strip, the lower-level moving piece cutter 4-4-2 is lifted upwards via the secondary ramp and mating rollers below the moving piece assembly station 2. The fixing pins of the mating rollers are inserted upwards into the moving piece feed strip 4-1 and fixed in place. The upper-level moving piece cutter 4-4-1, in conjunction with the lower-level moving piece cutter 4-4-2, cuts the moving piece. The gripping device 13 grips the moving piece and loads it into the corresponding positioning groove 14-1 of the secondary positioning device 14, where it is inspected by the secondary positioning detection mechanism 14-2. Subsequently, the loading claw 15-1 of the loading device 15 grips the moving piece and places it into the corresponding housing. The carrier 12 is positioned and lowered, and in conjunction with the retraction of the loading claw 15-1 and the continuous descent of the loading pin 15-2, the moving piece is loaded into the carrier 12. Through a three-level gradient avoidance space arranged laterally, the upper moving piece cutter 4-3-1 can precisely avoid obstacles according to different cutting requirements when cutting the moving piece, thereby achieving precise cutting of the moving piece. This allows the cutter to adapt to moving pieces of different shapes, sizes, or characteristics, expanding the equipment's application range and adaptability, improving its flexibility, and avoiding miscuts or damage caused by interference between the cutter and the moving piece during the cutting process, ensuring the integrity of the moving piece. The system ensures the quality and performance of the moving parts. Through the installation of the moving part inspection mechanism 4-5, the assembled moving parts can be automatically inspected, reducing manual inspection workload and improving inspection efficiency. Simultaneously, by optimizing the cutting structure and assembly process, waste generation and energy consumption during production are reduced, thereby lowering production costs. Precise cutting and efficient assembly guarantee the quality stability of the moving parts, improving the product qualification rate and significantly enhancing the cutting efficiency and precision of the moving parts. This further reduces production costs while ensuring product quality stability and consistency, thus further improving the assembly efficiency and precision of the automotive seatbelt trigger switch.

[0064] As a preferred embodiment of the above, such as Figure 11 , 12 As shown, the spring assembly station 6 includes a staggered feeding mechanism, a dovetail groove, a push rod 6-1, and a spring staggered block 6-2. The spring staggered block 6-2 stores the springs through primary staggering, and the spring staggered block 6-2 staggers the springs to the spring positioning space 6-3 through secondary staggering. Then, the spring pressing block 6-4 above the spring positioning space 6-3 presses the springs into the corresponding carrier 12. A spring detection light curtain 6-5 is also provided, which unfolds a layer of light curtain to detect the springs.

[0065] Specifically, the spring assembly station 6 includes a staggered feeding mechanism, a dovetail groove, a push rod 6-1, and a spring staggered block 6-2. The spring staggered block 6-2 stores the springs through a first-stage staggered operation, and the spring staggered block 6-2 further staggers the springs to the spring positioning space 6-3. Then, the spring pressing block 6-4 above the spring positioning space 6-3 presses the springs into the corresponding carrier 12. A spring detection light curtain 6-5 is also provided, which unfolds a light curtain to detect the springs, thereby completing the transfer of the carrier 12 from the first detection mechanism 5 position detection process to the spring assembly station 6-2. At spring assembly station 6, springs are fed into a dovetail groove via a staggered feeding mechanism. A push rod presses the spring along the dovetail groove into the spring misalignment block 6-2. The spring misalignment block 6-2 performs a first-stage misalignment to store the spring. Subsequently, the spring misalignment block 6-2 performs a second-stage misalignment to move the spring to the spring positioning space 6-3. Then, the spring pressing block 6-4 above the spring positioning space 6-3 presses the spring into the corresponding carrier 12. The spring detection light curtain 6-5 unfolds a light curtain to detect the spring. This ensures the spring is accurately fed through the staggered feeding mechanism and enters the dovetail groove. After that, the push rod smoothly presses the spring into the spring misalignment block 6-2. This design ensures the stability and accuracy of the spring during the feeding process, improves assembly efficiency, and the spring misalignment block 6-2 uses a first-stage misalignment to store the spring and then performs a second-stage misalignment to move the spring to the spring positioning space 6-3. This two-stage misalignment design not only ensures the orderly arrangement of springs but also enables them to accurately align with their corresponding positions on the carrier 12, improving assembly precision. The spring detection light curtain 6-5 enables automatic spring detection. By unfolding a light curtain to inspect the springs, it is possible to quickly and accurately identify whether there are defects or misalignments, ensuring assembly quality. Furthermore, by adjusting the size and shape of the spring misalignment block 6-2 and the spring positioning space 6-3, it can adapt to the assembly requirements of different springs, improving the equipment's versatility and flexibility. The design of the spring pressure block 6-4 also considers the compatibility with different carriers 12, allowing for fine-tuning according to different carrier shapes and sizes to ensure that the springs can be accurately pressed into the carriers. By optimizing the spring assembly process and design, unnecessary waste and rework are reduced, production costs are lowered, and the accuracy and consistency of spring assembly are improved, ensuring the quality and stability of the final product. This further brings significant improvements and enhancements to the spring assembly station 6 and its related components during the spring assembly process, ensuring the stability and consistency of product quality, thereby further improving the assembly efficiency and precision of the automotive seat belt trigger switch.

[0066] As a preferred embodiment of the above, such as Figure 13As shown, the push block assembly station 7 includes a staggered feeding mechanism, a vacuum suction platform 7-1, a vacuum suction nozzle 7-2, and a spring hook 7-3. The spring hook 7-3 has a two-stage hooking action to avoid the short spring. After avoiding the short spring, the spring hook 7-3 descends again to perform a two-stage hooking action.

[0067] Specifically, the push block assembly station 7 includes a staggered feeding mechanism, a vacuum suction platform 7-1, a vacuum nozzle 7-2, and a spring hook 7-3. The spring hook 7-3 has a two-stage hooking action to avoid the short spring. After avoiding the short spring, the spring hook 7-3 descends again for a second-stage hooking action, thereby transferring the carrier 12, which has completed the spring assembly process, to the push block assembly station 7. The push block is fed by the staggered feeding mechanism and moved to the vacuum nozzle 7-2 by the vacuum suction platform 7-1. Then, the vacuum nozzle 7-2 prepares to load the push block into the carrier 12. Before the loading action, the spring hook 7-3 hooks part of the spring height into the carrier 12 to avoid the short spring. After avoiding the short spring, the spring hook 7-3 descends again to fully hook the spring for a second-stage hooking action to the bottom of the carrier 12. Finally, the vacuum nozzle 7-2, in conjunction with the pressure block, loads the push block into the carrier 12. Precise feeding is achieved through a staggered feeding mechanism using push blocks, ensuring the stability and accuracy of the push blocks during assembly. The combined use of vacuum suction platform 7-1 and vacuum nozzle 7-2 enables rapid positioning and loading of the push blocks, improving assembly efficiency. The two-stage hooking action design of spring hook 7-3 ensures the stability and reliability of the springs during assembly, preventing displacement or detachment. By avoiding the movement of short springs, interference between the springs and short springs is effectively prevented, ensuring smooth assembly. It is suitable for assembling push blocks and springs of different specifications and types. By adjusting the dimensions and parameters of relevant components, it can adapt to different assembly needs. The two-stage hooking action design of spring hook 7-3 allows it to adapt to springs of different heights and shapes, enhancing the versatility and flexibility of the equipment, ensuring the stability and consistency of product quality, and thus further improving the assembly efficiency and accuracy of automotive seat belt trigger switches.

[0068] As a preferred embodiment of the above, such as Figure 18 As shown, the loading device 15 includes a loading claw 15-1 and a loading pin 15-2. The loading pin 15-2 is disposed in a groove separately provided in the loading claw 15-1. A spring is provided at the top of the loading claw 15-1 and a protrusion is provided at the bottom of the loading claw 15-1. The gripping device 13 grips the cut static piece in the static piece assembly station 3 in the horizontal direction and loads it into the corresponding secondary positioning device 14.

[0069] Specifically, the loading device 15 includes a loading claw 15-1 and a loading pin 15-2. The loading pin 15-2 is disposed in a groove separately provided by the loading claw 15-1. A spring is provided at the top of the loading claw 15-1, and a protrusion is provided at the bottom of the loading claw 15-1. The gripping device 13 grips the cut static pieces in the static piece assembly station 3 in the horizontal direction and loads them into the corresponding secondary positioning device 14. Thus, through the combined design of the loading claw 15-1 and the loading pin 15-2, the gripping and loading process of each piece is more efficient and accurate.

[0070] As a preferred embodiment of the above, such as Figure 9 , 17 As shown, a gripping device 13 and a secondary positioning device 14 are also provided. The gripping device 13 grips the cut objects in the short spring assembly station 2, the stationary piece assembly station 3, and the moving piece assembly station 4 and loads them into the corresponding secondary positioning device 14. The secondary positioning device 14 is provided with a positioning groove 14-1 and a secondary positioning detection mechanism 14-2 adapted to the position of the positioning groove 14-1. The gripping device 13 is provided with a gripping claw 13-1 whose front end gradually bends in a 90-degree direction and a gripping device displacement structure 13-2.

[0071] Specifically, the system also includes a gripping device 13 and a secondary positioning device 14. The gripping device 13 grips the cut objects from the short spring assembly station 2, the stationary spring assembly station 3, and the moving spring assembly station 4 and loads them into the corresponding secondary positioning device 14. The secondary positioning device 14 is equipped with a positioning groove 14-1 and a secondary positioning detection mechanism 14-2 adapted to the position of the positioning groove 14-1. The gripping device 13 has a gripping claw 13-1 with its front end gradually bending at a 90-degree angle and a gripping device displacement structure 13-2. This structure provides a precise positioning space for the gripped object through the positioning groove 14-1 on the secondary positioning device 14, ensuring that the object can be positioned correctly in subsequent processes. The secondary positioning and inspection mechanism 14-2, which maintains the correct position and posture and adapts to the position of the positioning slot 14-1, can perform secondary inspection on the object to ensure its accuracy and integrity, thereby reducing the defect rate. The design of the gripper 13-1, with its front end gradually curved at 90 degrees, allows it to adapt to gripping objects of different shapes and sizes, enhancing the versatility and flexibility of the gripping device and enabling the gripper to more easily enter narrow spaces to complete complex gripping tasks. Through precise gripping and positioning, errors and deviations that may occur during assembly are reduced, further ensuring the stability of product quality and improving the overall product quality, thereby further improving the assembly efficiency and accuracy of the automotive seat belt trigger switch.

[0072] A method for assembling a car seatbelt trigger switch.

[0073] S1: The shell loading station 1 loads the shell into the carrier 12. The carrier 12 completes the loading of shells of different sizes through the cooperation of the carrier top block 12-2 and the carrier roller 12-3.

[0074] S2: The carrier 12 with the housing is transferred to the short spring assembly station 2. The short spring feeding needle 2-2 drives the short spring feeding belt 2-1 to move towards the short spring cutter 2-3, and the short spring pressing roller 2-4 presses the belt to keep it stable. The lower-level short spring cutter 2-3-2 is lifted upward by the secondary ramp and the mating roller below the short spring assembly station 2. The fixing pin of the mating roller passes upward through the short spring feeding belt 2-1 and fixes it. The short spring cutter auxiliary telescopic block 2-3-3, the lower-level short spring cutter... The blade 2-3-2, in conjunction with the upper-level short spring cutter 2-3-1, cuts the short spring. The gripping device 13 grips the short spring and loads it into the positioning groove 14-1 of the corresponding secondary positioning device 14, where it is detected by the secondary positioning detection mechanism 14-2. Subsequently, the loading claw 15-1 of the loading device 15 grips the short spring to the corresponding position of the carrier 12 with the housing and lowers it. The short spring is loaded into the carrier 12 by the retraction of the loading claw 15-1 and the continuous descent of the loading pin 15-2.

[0075] S3: The carrier 12, having completed the short spring assembly process, is transferred to the stationary spring assembly station 3. The stationary spring feeding needle 3-2 drives the stationary spring feeding belt 3-1 towards the stationary spring cutter 3-3, and the stationary spring pressing roller 3-4 presses the belt to maintain its stability. The lower-level stationary spring cutter 3-3-2 is lifted upwards via the secondary ramp and mating rollers below the stationary spring assembly station 2. The fixing pin of the mating roller passes upwards through the stationary spring feeding belt 3-1 and fixes it. The upper-level stationary spring cutter 3-3-1... The lower-level static sheet cutter 3-3-2 cuts the static sheet. The gripping device 13 grips the static sheet and loads it into the positioning groove 14-1 of the corresponding secondary positioning device 14. The secondary positioning detection mechanism 14-2 performs the detection. Then, the loading claw 15-1 of the loading device 15 grips the static sheet to the corresponding position of the carrier 12 with the housing and lowers it. With the retraction of the loading claw 15-1 and the continuous descent of the loading pin 15-2, the static sheet is loaded into the carrier 12.

[0076] S4: The carrier 12, having completed the static sheet assembly process, is transferred to the moving sheet assembly station 4. The moving sheet feeding needle 4-2 drives the moving sheet feeding belt 4-1 towards the moving sheet cutter 4-3, and the moving sheet pressing roller 4-4 presses the belt to maintain its stability. The lower-level moving sheet cutter 4-4-2 is lifted upwards via the secondary ramp and mating roller below the moving sheet assembly station 2. The fixing pin of the mating roller passes upwards through the moving sheet feeding belt 4-1 and fixes it. The upper-level moving sheet cutter 4-4-1 is mated with... The lower-level moving piece cutter 4-4-2 cuts the moving piece. The gripping device 13 grips the moving piece and loads it into the positioning groove 14-1 of the corresponding secondary positioning device 14. The secondary positioning detection mechanism 14-2 performs the detection. Then, the loading claw 15-1 of the loading device 15 grips the moving piece to the corresponding position of the carrier 12 with the housing and lowers it. With the retraction of the loading claw 15-1 and the continuous descent of the loading pin 15-2, the moving piece is loaded into the carrier 12.

[0077] S5: The carrier 12 that has completed the moving piece assembly process is transferred to the first inspection mechanism 5, and the first inspection mechanism 5 inspects the assembly results of the housing loading station 1, the short spring assembly station 2, the stationary piece assembly station 3, and the moving piece assembly station 4.

[0078] S6: The carrier 12, which has completed the position detection process of the first detection mechanism 5, is transferred to the spring assembly station 6. The spring is fed by the misaligned feeding mechanism and enters the dovetail groove. The push rod presses the spring into the spring misalignment block 6-2 along the dovetail groove. The spring misalignment block 6-2 stores the spring through first-level misalignment. Then, the spring misalignment block 6-2 misaligns the spring to the spring positioning space 6-3 through second-level misalignment. The spring pressing block 6-4 above the spring positioning space 6-3 presses the spring into the corresponding carrier 12. The spring detection light curtain 6-5 unfolds a layer of light curtain to detect the spring.

[0079] S7: The carrier 12, having completed the spring assembly process, is transferred to the push block assembly station 7. The push block is fed by the staggered feeding mechanism and moved to the vacuum nozzle 7-2 by the vacuum suction platform 7-1. Then, the vacuum nozzle 7-2 prepares to load the push block into the carrier 12. Before the loading action, the spring hook 7-3 pulls part of the spring height into the carrier 12 to avoid the short spring. After avoiding the short spring, the spring hook 7-3 descends again to fully hook the spring and pulls it to the bottom of the carrier 12 in a secondary hooking action. Then, the vacuum nozzle 7-2, in conjunction with the pressure block, loads the push block into the carrier 12.

[0080] S8: The carrier 12, after completing the push block assembly, is transferred to the second detection mechanism 8, and the second detection mechanism 8 performs assembly result detection on the spring assembly station 6 and the push block assembly station 7.

[0081] S9: The carrier 12, which has completed the position detection process of the second detection mechanism 8, is transferred to the laser marking station 10 and the product is laser marked;

[0082] S10: The carrier 12, which has completed the laser marking process, is transferred to the upper cover assembly station 9 and the upper cover is assembled.

[0083] S11: The carrier 12, after the top cover assembly is completed, is transferred to the unloading station 11, and the product in the carrier 12 is unloaded by the unloading station 11.

[0084] Specifically, a method for assembling automotive seatbelt trigger switches automates the entire process, from housing loading to final unloading, achieving highly automated production. Precise positioning and assembly at each stage ensure product quality and consistency. The use of a secondary positioning device and positioning grooves ensures accurate assembly of components such as the short spring, stationary plate, moving plate, and push block. The detection mechanism further ensures the reliability of the assembly results, and the carrier design allows for loading housings of different sizes, enhancing the equipment's versatility and flexibility. Furthermore, by adjusting the parameters of components such as the feeding mechanism, cutter, and gripping device, the equipment can adapt to the assembly of different specifications and types of parts, improving its adaptability and scalability, further ensuring product quality stability, and enhancing overall product quality. This, in turn, improves the assembly efficiency and precision of automotive seatbelt trigger switches.

[0085] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembly device for an automotive seatbelt trigger switch, characterized in that: The equipment includes the main body and the following components arranged in sequence around the main body: a shell loading station (1), a short spring assembly station (2), a stationary plate assembly station (3), a moving plate assembly station (4), a spring assembly station (6), a push block assembly station (7), a top cover assembly station (9), an unloading station (11), and a loading device (15). The equipment body is provided with a number of carriers (12) that can rotate around the center of the equipment body, and the position of the carriers (12) on the equipment body is adapted to the position between each workstation; The loading device (15) grabs the cut objects in the short spring assembly station (2), the stationary spring assembly station (3) and the moving spring assembly station (4) and loads them into the corresponding carrier (12); The carrier (12) includes a carrier reference surface (12-1) and a carrier top block (12-2) disposed outside the direction of the carrier reference surface (12-1). The carrier top block (12-2) extends and retracts with the carrier roller (12-3) disposed below the carrier (12). A first detection mechanism (5) and a second detection mechanism (8) are also provided. The first detection mechanism (5) performs assembly result detection on the corresponding position of the carrier (12) at the housing loading station (1), the short spring assembly station (2), the stationary plate assembly station (3), and the moving plate assembly station (4). The second detection mechanism (8) performs assembly result detection on the corresponding position of the carrier (12) at the spring assembly station (6) and the push block assembly station (7). A laser marking station (10) is also provided. It is also equipped with a gripping device (13) and a secondary positioning device (14). The gripping device (13) grips the cut objects in the short spring assembly station (2), the stationary plate assembly station (3), and the moving plate assembly station (4) and loads them into the corresponding secondary positioning device (14). The secondary positioning device (14) is equipped with a positioning groove (14-1) and a secondary positioning detection mechanism (14-2) adapted to the position of the positioning groove (14-1). The gripping device (13) is equipped with a gripping claw (13-1) whose front end gradually bends in the 90-degree direction and a gripping device displacement structure (13-2).

2. The automotive safety belt trigger switch assembly apparatus according to claim 1, wherein, The short spring assembly station (2) includes a short spring feeding belt (2-1), a short spring feeding needle (2-2), a short spring cutter (2-3), a short spring pressing wheel (2-4), and a short spring detection mechanism (2-5). The short spring feeding needle (2-2) drives the short spring feeding belt (2-1) to move towards the short spring cutter (2-3), and the short spring cutter (2-3) cuts the short spring. Separate feeding spaces are provided on both sides of the short spring feeding belt (2-1) at the short spring assembly station (2), corresponding to the position of the short spring feeding needle (2-2). The feeding spaces on both sides are a semi-enclosed groove and a fully enclosed groove, respectively. A spring is provided on the short spring pressing wheel (2-4) to assist in the feeding process. The short spring pressing wheel (2-4) presses the material. The short spring pressing wheel (2-4) is a roller, and its inclined direction is the same as the feeding direction of the short spring feeding belt (2-1). The short spring cutter (2-3) includes an upper short spring cutter (2-3-1), a lower short spring cutter (2-3-2), and a short spring cutter auxiliary telescopic block (2-3-3). The upper short spring cutter (2-3-1) is provided with an upper short spring cutter avoidance (2-3-1-1). The lower short spring cutter (2-3-2) is lifted upward by the secondary ramp below the short spring assembly station (2) and the cooperating roller. The cooperating roller is also connected to a fixing pin. The fixing pin passes upward through the short spring feeding belt (2-1) and is fixed.

3. The automotive safety belt trigger switch assembly apparatus of claim 2, wherein, The stationary sheet assembly station (3) includes a stationary sheet feeding belt (3-1), a stationary sheet feeding needle (3-2), a stationary sheet cutter (3-3), a stationary sheet pressing wheel (3-4), and a stationary sheet detection mechanism (3-5). The stationary sheet cutter (3-3) includes an upper stationary sheet cutter (3-3-1) and a lower stationary sheet cutter (3-3-2). The upper stationary sheet cutter (3-3-1) consists of two cutters distributed at right angles, and the upper stationary sheet cutter (3-3-1) has a trapezoidal structure with a downward angle.

4. The automotive safety belt trigger switch assembly apparatus of claim 3, wherein, The moving piece assembly station (4) includes a moving piece feeding belt (4-1), a moving piece feeding needle (4-2), a moving piece cutter (4-3), a moving piece pressing wheel (4-4), and a moving piece detection mechanism (4-5). The moving piece cutter (4-3) includes an upper moving piece cutter (4-3-1) and a lower moving piece cutter (4-3-2). The upper moving piece cutter (4-3-1) is provided with a three-level gradient avoidance space in the horizontal direction.

5. The automotive safety belt trigger switch assembly apparatus of claim 4, wherein, The spring assembly station (6) includes a staggered feeding mechanism, a dovetail groove, a push rod (6-1), and a spring staggered block (6-2). The spring staggered block (6-2) stores the springs in a first-stage staggered manner, and the spring staggered block (6-2) in a second-stage staggered manner moves the springs to the spring positioning space (6-3). Then, the spring pressing block (6-4) above the spring positioning space (6-3) presses the springs into the corresponding carrier (12). A spring detection light curtain (6-5) is also provided, which unfolds a layer of light curtain to detect the springs.

6. The automotive lap belt trigger switch assembly apparatus of claim 5, wherein, The push block assembly station (7) includes a staggered feeding mechanism, a vacuum suction platform (7-1), a vacuum suction nozzle (7-2), and a spring hook (7-3). The spring hook (7-3) is divided into two-stage hooking actions to avoid the short spring. After avoiding the short spring, the spring hook (7-3) descends again to perform a second-stage hooking action.

7. The automotive safety belt trigger switch assembly apparatus of claim 6, wherein, The loading device (15) includes a loading claw (15-1) and a loading pin (15-2). The loading pin (15-2) is set in a groove separately provided by the loading claw (15-1). A spring is provided at the top of the loading claw (15-1) and a protrusion is provided at the bottom of the loading claw (15-1). The gripping device (13) grips the cut static piece in the static piece assembly station (3) in the horizontal direction and loads it into the corresponding secondary positioning device (14).

8. The method for assembling a car seatbelt trigger switch using the car seatbelt trigger switch assembly equipment according to claim 7, characterized in that, S1: The shell loading station (1) loads the shell into the carrier (12). The carrier (12) completes the loading of shells of different sizes through the cooperation of the carrier top block (12-2) and the carrier roller (12-3). S2: The carrier (12) with the housing is transferred to the short spring assembly station (2). The short spring feeding needle (2-2) drives the short spring feeding belt (2-1) to move towards the short spring cutter (2-3) and is pressed by the short spring pressing roller (2-4) to keep the belt stable. The lower-level short spring cutter (2-3-2) is lifted upward by the secondary ramp and the mating roller below the short spring assembly station (2). The fixing pin of the mating roller passes upward through the short spring feeding belt (2-1) and is fixed. The short spring cutter auxiliary telescopic block (2-3-3) and the lower-level short spring cutter (2-3-2) are connected. -3-2) The short spring is cut by the upper short spring cutter (2-3-1). The gripping device (13) grips the short spring and loads it into the positioning groove (14-1) of the corresponding secondary positioning device (14). The secondary positioning detection mechanism (14-2) performs the detection. Then, the loading claw (15-1) of the loading device (15) grips the short spring to the corresponding position of the carrier (12) with the housing and lowers it. The short spring is loaded into the carrier (12) by the retraction of the loading claw (15-1) and the continuous descent of the loading pin (15-2). S3: The carrier (12) that has completed the short spring assembly process is transferred to the stationary spring assembly station (3). The stationary spring feeding needle (3-2) drives the stationary spring feeding belt (3-1) to move towards the stationary spring cutter (3-3) and is pressed by the stationary spring pressing roller (3-4) to keep the belt stable. The lower stationary spring cutter (3-3-2) is lifted upward by the secondary ramp and the mating roller below the stationary spring assembly station (3). The fixing needle of the mating roller passes upward through the stationary spring feeding belt (3-1) and is fixed. The upper stationary spring cutter (3-3-1) cooperates with the lower stationary spring assembly station (3) to move towards the stationary spring cutter (3-3). The primary static sheet cutter (3-3-2) cuts the static sheet. The gripping device (13) grips the static sheet and loads it into the positioning groove (14-1) of the corresponding secondary positioning device (14). The secondary positioning detection mechanism (14-2) performs the detection. Then, the loading claw (15-1) of the loading device (15) grips the static sheet to the corresponding position of the carrier (12) with the housing and lowers it. With the retraction of the loading claw (15-1) and the continuous descent of the loading pin (15-2), the static sheet is loaded into the carrier (12). S4: The carrier (12) that has completed the static piece assembly process is transferred to the moving piece assembly station (4). The moving piece feeding needle (4-2) drives the moving piece feeding belt (4-1) to move towards the moving piece cutter (4-3) and the moving piece pressing wheel (4-4) presses the belt to keep it stable. The lower moving piece cutter (4-3-2) is lifted upward by the secondary ramp and the mating roller below the moving piece assembly station (4). The fixing needle of the mating roller passes upward through the moving piece feeding belt (4-1) and is fixed. The upper moving piece cutter (4-3-1) cooperates with the... The lower-level moving piece cutter (4-3-2) cuts the moving piece. The gripping device (13) grips the moving piece and loads it into the positioning groove (14-1) of the corresponding secondary positioning device (14). The secondary positioning detection mechanism (14-2) performs the detection. Then, the loading claw (15-1) of the loading device (15) grips the moving piece to the corresponding position of the carrier (12) with the housing and lowers it. With the retraction of the loading claw (15-1) and the continuous descent of the loading pin (15-2), the moving piece is loaded into the carrier (12). S5: The carrier (12) that has completed the moving piece assembly process is transferred to the first inspection mechanism (5), and the first inspection mechanism (5) inspects the assembly results of the housing loading station (1), the short spring assembly station (2), the stationary piece assembly station (3), and the moving piece assembly station (4). S6: The carrier (12) that has completed the position detection process of the first detection mechanism (5) is transferred to the spring assembly station (6). The spring is fed by the misaligned feeding mechanism and enters the dovetail groove. The push rod presses the spring into the spring misalignment block (6-2) along the dovetail groove. The spring misalignment block (6-2) stores the spring by first-level misalignment. Then, the spring misalignment block (6-2) misaligns the spring to the spring positioning space (6-3) by second-level misalignment. Then, the spring pressing block (6-4) above the spring positioning space (6-3) presses the spring into the corresponding carrier (12). The spring detection light curtain (6-5) unfolds a layer of light curtain to detect the spring. S7: The carrier (12) that has completed the spring assembly process is transferred to the push block assembly station (7). The push block is fed by the staggered feeding mechanism and driven to the position of the vacuum suction platform (7-1) by the vacuum suction platform (7-1). Then the vacuum suction platform (7-2) prepares to load the push block into the carrier (12). Before the loading action, the spring hook (7-3) hooks and pulls part of the spring height into the carrier (12) to avoid the short spring. Then the spring hook (7-3) avoids the short spring and then descends again to completely hook the spring for a secondary hooking and pulling to the bottom of the carrier (12). Then the vacuum suction platform (7-2) cooperates with the pressure block to load the push block into the carrier (12). S8: The carrier (12) after the push block assembly is completed is transferred to the second detection mechanism (8), and the second detection mechanism (8) performs assembly result detection of the spring assembly station (6) and the push block assembly station (7); S9: The carrier (12) that has completed the position detection process of the second detection mechanism (8) is transferred to the laser marking station (10) and the product is laser marked; S10: The carrier (12) that has completed the laser marking process is transferred to the upper cover assembly station (9) and the upper cover is assembled; S11: The carrier (12) after the top cover assembly is completed is transferred to the unloading station (11), and the product in the carrier (12) is unloaded by the unloading station (11).

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