Automatic assembly equipment for automobile screw foam gasket

Abstract

The invention relates to automatic assembly equipment for automobile screws, foam gaskets, which comprises a rack, a rotary table and a plurality of screw positioning seats distributed on the rotary table at equal intervals, and the rack is sequentially provided with a screw feeding station, a pressing station, a gasket sleeving station and a discharging station in the rotating direction of the rotary table. The screw conveying assembly and the screw feeding assembly achieve directional arrangement and batch transfer of screws, a mechanical arm of the gasket sleeving station carries a foam transfer jig, accurately grabs foam gaskets and sleeves the surfaces of the screws with the foam gaskets, the foam gaskets are matched with a foam pressing plate to enhance the attaching degree, and the foam gasket conveying assembly achieves continuous feeding through backing paper stripping and anti-sticking plate feeding. The waste discharging assembly synchronously removes waste materials, the discharging assembly moves out finished screws in batches, full-automatic assembly of screw foam gaskets is achieved, the efficiency and the yield are remarkably improved, the problems of foam tearing and viscosity failure caused by manual operation are effectively solved, and the large-scale production requirements of automobile waterproof and damping screws are met.

Description

Technical Field

[0001] The invention relates to the field of automatic ferrules for automobile screws, and in particular to automatic assembly equipment for automobile screw foam washers. Background Art

[0002] In the field of automobile manufacturing, some key connection parts (such as stud screws on roof racks and fixing screws for new energy battery boxes) need to have both structural strength and sealing and shock-absorbing functions. Such automobile screws usually need to be fitted with foam washers on the external threaded section to utilize their elastic compression characteristics to achieve waterproofing, shock absorption and stress buffering requirements. Such washers are currently mainly installed manually due to their soft material and small size to ensure their integrity and assembly position accuracy.

[0003] However, the current manual sleeve operation has significant shortcomings: first, manual operation efficiency is low and the process controllability is insufficient. The foam gasket is prone to tearing due to uneven force during the sleeve operation, resulting in deterioration of sealing performance and increased rework rate. Second, the existing automated equipment is limited by the low strength characteristics of the foam material, and it is difficult to achieve stable grasping and precise positioning, resulting in limited yield improvement. In addition, due to the stickiness of the foam gasket, it is inevitable to touch the glue area during manual sleeve operation, resulting in reduced viscosity, affecting the quality of the entire finished product. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automatic assembly device for automobile screw foam washers in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic assembly equipment for automobile screw foam washers, comprising a frame, and a turntable arranged on the frame and rotating intermittently, the turntable is provided with a plurality of screw positioning seats arranged at equal intervals, the screw positioning seats are provided with a plurality of positioning holes for accommodating screws, the frame is provided with a screw loading station, a screw sleeve washer station and a screw unloading station in sequence along the rotation direction of the turntable, the screw positioning seats are intermittently stopped at the screw loading station, the screw sleeve washer station and the screw unloading station in sequence The screw feeding station is provided with a screw conveying assembly for conveying screws and a screw loading assembly for conveying one or more screws on the screw conveying assembly to the screw positioning seat. The screw sleeve washer station is provided with a manipulator and a foam washer conveying assembly. The manipulator is loaded with a foam transfer jig, and the foam washer on the foam washer conveying assembly is sleeved onto the screw in the screw sleeve washer station through the foam transfer jig. The screw unloading station is provided with a screw unloading assembly for sending the screws after sleeved from the screw positioning seat out of the turntable.

[0006] By adopting the above technical scheme, the screw locating seat is driven by the intermittent rotation of the turntable to enter the loading, ferrule and unloading stations in sequence according to the preset rhythm, forming a circular operation flow. After the screw conveying component arranges the screws in a directional manner, the screw loading component transfers them in batches to the positioning holes of the turntable. The manipulator is equipped with a foam transfer fixture and uses the foam gasket conveying component to feed the material and set the foam gasket to the specified position of the screw. The unloading component moves the assembled screw out of the turntable through the clamping mechanism. During the whole process, the intermittent stop mechanism of the turntable ensures the precise connection of the operations of each station and avoids process interference. The multi-hole design of the screw locating seat supports batch synchronous processing and improves assembly efficiency. The cooperation between the manipulator and the foam transfer fixture realizes the lossless setting of the foam gasket, solving the pain point of easy tearing during manual operation. The overall system significantly reduces manual dependence and ensures process consistency through modular station layout and automated process, meets the large-scale production needs of automotive screw waterproofing and shock absorption scenarios, and greatly improves the assembly efficiency and yield of screws.

[0007] Furthermore, the foam transfer jig includes a foam transfer frame arranged at the working end of the manipulator, a plurality of foam adsorption cylinders arranged on the foam transfer frame, and a foam pressing plate arranged on the foam transfer frame. The end of the foam adsorption cylinder is provided with a plug-in portion for inserting into the foam gasket, and a step adsorption surface is formed between the plug-in portion and the foam adsorption cylinder. A plurality of foam vacuum adsorption holes are arranged around the step adsorption surface. A first screw clearance hole is provided at the center of the plug-in portion, and a plurality of second screw clearance holes corresponding to the positioning holes on the screw positioning seat are provided on the foam pressing plate.

[0008] By adopting the above technical scheme, the plug-in part at the end of the foam absorption tube is inserted into the center hole of the foam gasket, and the vacuum absorption holes around the step absorption surface are used to generate uniform absorption force on the foam. At the same time, the first screw clearance hole in the center of the plug-in part provides an avoidance space for the screw head, and the second screw clearance hole of the foam clamping plate corresponds to the positioning hole one by one, ensuring that the clamping plate only contacts the edge of the foam without interfering with the screw body during the foam sleeve installation process, and gives all-round pressure to the foam gasket during the pressing process to avoid the occurrence of local non-pressing and warping edges. The design of inserting the plug-in part into the center hole of the foam avoids deformation or tearing of the foam during grasping, and the cooperation of the step absorption surface and the vacuum absorption hole realizes stable grasping and precise positioning of the foam. The double screw clearance hole structure ensures the contactless installation of the foam transfer jig and the screw to prevent scratching the screw surface. The synchronous downward pressing action of the foam clamping plate enhances the fit between the foam and the screw, thereby improving the assembly quality and yield.

[0009] Furthermore, the foam gasket conveying assembly includes a foam conveying rack arranged on the frame, a foam roll conveying disk rotatably arranged on the foam conveying rack for mounting the foam roll, a waste collection reel rotatably arranged on the foam conveying rack for recycling the foam base paper, and a foam conveying motor driving the waste collection reel to rotate and rewind. A stripping paper board and an anti-sticking plate are provided at one end of the foam conveying rack away from the foam roll conveying disk, a stripping channel for the foam base paper to pass through is provided between the anti-sticking plate and the stripping paper board, and the foam conveying motor is used to drive the waste collection reel to rotate and rewind, and then deliver the foam gasket after the foam base paper is peeled off to the anti-sticking plate.

[0010] By adopting the above technical scheme, the foam gasket roll with the backing paper is released through the foam roll conveyor disc, and the foam conveying motor drives the waste collection reel to rewind the backing paper, so that the foam gasket is peeled off the backing paper through the paper stripping channel and then laid flat on the surface of the anti-sticking plate. The spacing design between the peeling paper board and the anti-sticking plate ensures that the foam gasket is not displaced during the peeling process. The low-viscosity surface of the anti-sticking plate prevents accidental adhesion of the foam. The continuous winding and peeling mechanism realizes the automatic supply of the foam gasket and reduces the frequency of manual material changing. The synergistic effect of the anti-sticking plate and the paper stripping channel ensures the position accuracy of the foam gasket after peeling and avoids misalignment of the grasping. The backing paper recovery function prevents waste accumulation from interfering with the operation process and provides a power source for the front-stage action of the foam, thereby improving the system operation stability and adapting to the needs of high-speed automated assembly scenarios.

[0011] Furthermore, a foam waste discharge assembly is provided on one side of the frame corresponding to the foam gasket conveying assembly, and the foam waste discharge assembly includes a foam waste discharge plate arranged opposite to the anti-sticking plate, a foam waste discharge transverse movement cylinder driving the foam waste discharge plate to approach or move away from the anti-sticking plate, and a foam waste discharge lifting cylinder driving the foam waste discharge transverse movement cylinder to axially lift and lower the foam waste discharge plate, and the foam waste discharge plate is used to bring the foam waste on the anti-sticking plate away from the foam gasket conveying assembly.

[0012] By adopting the above technical scheme, the foam waste discharge plate is driven to move horizontally and vertically to the surface of the anti-sticking plate through the coordinated action of the foam waste discharge transverse movement cylinder and the lifting cylinder. The foam waste is grabbed by the physical contact or adsorption function of the waste discharge plate, and then moved laterally out of the anti-sticking plate area to transfer the waste to a preset collection position. The directional movement design of the foam waste discharge plate realizes the rapid separation of waste and effective foam gaskets to avoid waste accumulation interfering with subsequent foam feeding. The cylinder drive controls the precise positioning of the waste discharge plate to ensure the reliability of waste grabbing. The automated waste removal mechanism reduces the frequency of manual cleaning, improves the continuous operation capability of the equipment, and reduces the risk of foam gasket contamination.

[0013] Furthermore, the foam waste discharge assembly also includes a waste chamber arranged between the foam waste discharge lifting cylinder and the foam conveying rack, the foam waste discharge plate is provided with a plurality of gasket yield grooves corresponding to the foam gaskets, and the bottom surface of the foam waste discharge plate is provided with a plurality of waste vacuum adsorption holes and waste locking needles.

[0014] By adopting the above technical solution, the foam waste is adsorbed through the waste vacuum adsorption holes on the bottom of the foam waste discharge plate, and the waste locking needle is inserted into the edge of the waste to achieve physical fixation, thereby improving the stability of the waste discharge process. The gasket clearance groove corresponds to the position of the effective foam gasket one by one, ensuring that when the waste discharge plate is pressed down, it only contacts the waste and avoids the normal gasket. The waste chamber centrally stores the waste transferred by the waste discharge plate. The entire structure, the dual fixing mechanism of vacuum adsorption and locking needle improves the reliability of waste grabbing, prevents waste from falling off, and stabilizes the falling of waste. The gasket clearance groove design prevents the waste discharge action from interfering with the position accuracy of the normal foam gasket. The waste chamber is integrated at the end of the waste discharge path to realize automatic collection and centralized processing of waste, reduce the frequency of manual intervention, and ensure the continuous operation efficiency of the production line.

[0015] Furthermore, the screw conveying assembly includes a vibration plate, a direct vibration mechanism and a screw arranging mechanism, the screw arranging mechanism includes an arranging partition, a screw entry hole opened on the arranging partition, an offset arranging plate arranged at one end of the arranging partition away from the direct vibration mechanism, and an arranging driving mechanism for driving the offset arranging plate to slide back and forth horizontally along the arranging partition, the offset arranging plate is provided with a plurality of transversely arranged screw arranging grooves, the ends of the screw arranging grooves facing the arranging partition have notches that can be connected to the screw entry holes, one end of the direct vibration mechanism is connected to the vibration plate, and the other end is connected to the screw entry hole, and the screws screened in the vibration plate are sent one by one to the offset arranging plate through the screw entry holes.

[0016] By adopting the above technical scheme, the screws are screened by the vibration plate and conveyed to the direct vibration mechanism in a direction. The direct vibration mechanism transmits the screws linearly to the screw entry holes of the arrangement partition. The staggered arrangement plate moves back and forth horizontally to make the notches of the screw arrangement slots periodically align with the screw entry holes, receive the screws one by one and arrange them horizontally into a preset queue. The arrangement drive mechanism controls the displacement rhythm of the staggered arrangement plate to ensure the orderly distribution of the screws. The cooperation between the vibration plate and the direct vibration mechanism realizes the continuous and directional supply of the screws to avoid posture confusion. The dynamic docking mechanism between the notches of the staggered arrangement plate and the screw entry holes ensures that the screws are introduced into the arrangement slots one by one to prevent jamming or overlapping. The batch layout of the horizontal arrangement slots supports the synchronous transfer of multiple screws, improves the feeding efficiency and the connection stability of the automation process, and adapts to the batch processing needs of screws.

[0017] Furthermore, the arrangement drive mechanism is a linear drive module, the output end of the linear drive module is connected to the offset arrangement plate, the arrangement partition is provided with an entry baffle cylinder corresponding to the screw entry hole, the output end of the entry baffle cylinder is provided with an entry baffle plate, the entry baffle cylinder drives the entry baffle plate to approach or move away from the screw entry hole, thereby blocking and releasing the screw at the screw entry hole.

[0018] By adopting the above technical scheme, the linear drive module drives the offset arrangement plate to move back and forth horizontally, so that the gap of the screw arrangement groove is periodically aligned with the screw entry hole, and the screws transmitted by the direct vibration mechanism are received. The entry baffle cylinder drives the entry baffle plate to dynamically block or release the screw entry hole, thereby controlling the flow and rhythm of the screws entering the arrangement groove to avoid excessive screws from entering and causing the arrangement groove to be stuck. During the whole process, the high-precision displacement of the linear drive module ensures the alignment accuracy of the arrangement groove and the entry hole, improves the screw arrangement efficiency, and the real-time opening and closing control of the entry baffle cylinder realizes the precise synchronization of screw feeding and arrangement action to prevent screw accumulation or leakage. The dynamic baffle mechanism adapts to the arrangement requirements of screws of different sizes, enhances equipment compatibility, and reduces the risk of mechanical interference to ensure continuous and stable operation of the production line.

[0019] Furthermore, the screw feeding assembly includes a screw feeding rack arranged on one side of the turntable, a feeding transverse movement cylinder arranged on the screw feeding rack, a feeding lifting plate arranged at the output end of the feeding transverse movement cylinder, a feeding lifting cylinder arranged on the feeding lifting plate, and a feeding finger cylinder arranged at the output end of the feeding lifting cylinder. The output end of the feeding finger cylinder is provided with two relatively arranged screw feeding clamps, and screw feeding clamping grooves are correspondingly formed between the screw feeding clamps. The feeding finger cylinder is driven by the feeding transverse movement cylinder and the feeding lifting cylinder to synchronously transfer multiple screws on the staggered arrangement plate to the screw positioning seat.

[0020] By adopting the above technical scheme, the horizontal displacement is controlled by the feeding transverse cylinder, and the vertical height is adjusted by the feeding lifting cylinder. The feeding finger cylinder is driven to carry the screw feeding clamp to the offset arrangement plate, and the arranged screws are grabbed in batches by the clamping slots. Then, the screws are accurately transferred to the corresponding holes of the turntable positioning seat through the combined movement of the transverse and lifting cylinders. The structural design of the clamping slots ensures that the screws do not slip or deflect during the transfer process. The entire structure realizes accurate positioning and rapid transfer of screws through the timed coordinated action of multiple cylinders, thereby improving the feeding efficiency. The symmetrical layout of the clamping slots adapts to the grabbing requirements of screws of different diameters and ensures clamping stability. The batch synchronous feeding mechanism (4-8 screws are transferred at a time) reduces the waiting time of the turntable and optimizes the production line rhythm.

[0021] Furthermore, the direct vibration mechanism includes a linear vibrator and a screw conveying rack and a screw screening plate arranged above the linear vibrator, a screw screening channel for linearly conveying screws is provided between the screw conveying rack and the screw screening plate, one end of the screw screening channel is connected to the vibration disk, and the other end is connected to the screw entry hole, a screw turning mechanism is provided between the screw feeding assembly and the staggered arrangement plate, which clamps and flips multiple screws on the staggered arrangement plate and then provides them for the screw feeding assembly to clamp and feed, the screw turning mechanism includes a screw turning frame arranged on one side of the staggered arrangement plate, a turning and lifting cylinder arranged on the screw turning frame, a screw rotating cylinder arranged at the output end of the turning and lifting cylinder, and a turning finger cylinder arranged at the output end of the screw rotating cylinder, the turning finger cylinder is arranged above the staggered arrangement plate, and the output end of the turning finger cylinder is provided with two relatively arranged screw turning clamps, and screw turning clamping grooves are correspondingly formed between the screw turning clamps.

[0022] By adopting the above technical scheme, the linear vibrator of the direct vibration mechanism drives the screws in the screw screening channel to move in a directional manner to the offset arrangement plate. The limiting structure of the screening channel ensures that the screws are arranged in a preset posture. The screw flipping mechanism adjusts the height through the flipping lifting cylinder and the screw rotating cylinder drives the flipping finger cylinder to rotate 180°, so that the flipping clamping slot grabs the screws on the offset arrangement plate and adjusts its direction to adapt to the feeding posture requirements of the turntable positioning hole. The linear vibration conveying mechanism of the screw screening channel ensures the continuity and directional consistency of the screw arrangement to avoid jamming caused by posture disorder. The lifting / rotation coordinated action of the flipping mechanism realizes precise posture adjustment of the screw to ensure accurate alignment of the screw and the positioning hole. The symmetrical design of the flipping clamping slot adapts to different screw sizes to avoid thread damage during clamping, thereby improving the feeding yield and compatibility with the automated process.

[0023] Furthermore, the frame is provided with a screw pressing station between the screw feeding station and the screw sleeve washer station along the rotation direction of the turntable, the turntable is provided with four equidistantly arranged screw positioning seats, the screw positioning seats are provided with at least two positioning holes for accommodating screws, the screw pressing station is provided with a screw pressing frame installed on the frame, a screw pressing cylinder arranged on the screw pressing frame, and a screw pressing lifting plate arranged at the output end of the screw pressing cylinder, the screw pressing lifting plate is provided with a plurality of hydraulic buffers corresponding to the positioning holes on the screw positioning seats, the hydraulic buffers are arranged directly above the turntable, and are moved along with the belt of the screw pressing cylinder The moving axis moves closer to or away from the turntable, and the screw unloading assembly includes a screw unloading rack arranged on one side of the turntable, a unloading transverse moving rack arranged on the screw unloading rack, a unloading transverse moving cylinder arranged on the unloading transverse moving rack, an unloading lifting cylinder arranged at the output end of the unloading transverse moving cylinder, and a unloading finger cylinder arranged at the output end of the unloading lifting cylinder. The output end of the unloading finger cylinder is provided with two relatively arranged screw unloading clamping plates, and a plurality of screw unloading clamping grooves are correspondingly formed between the screw unloading clamping plates. The unloading finger cylinder is driven by the unloading transverse moving cylinder and the unloading lifting cylinder to send a plurality of screws on the screw positioning seat in the screw unloading station out of the turntable in the same batch.

[0024] By adopting the above technical solution, a screw clamping station is added in the middle of the turntable. After the screw is loaded, the clamping cylinder drives the hydraulic buffer to press down, and the screw is stably pressed into the positioning hole to prevent the screw from shifting when the turntable rotates. The unloading component drives the clamping groove of the unloading finger cylinder to batch grab the screws with the rings completed through the coordinated action of the unloading transverse cylinder and the lifting cylinder, and moves them out of the turntable laterally and releases them to the external collection device. The elastic clamping mechanism of the hydraulic buffer avoids over-pressure damage to the screws while ensuring the vertical positioning accuracy of the screws. The batch grabbing design of the unloading clamping groove matches the turntable rhythm and improves the unloading efficiency. The modular layout of the clamping station and the unloading station optimizes the space utilization of the production line, reduces the risk of process interference, and adapts to the needs of high-beat continuous production scenarios.

[0025] The beneficial effects of the present invention are: 1. Through the intermittent rotation of the turntable and the coordination of multiple stations, the continuous cycle assembly of screws and foam washers is realized, eliminating the beat delay caused by manual intervention and greatly improving the assembly efficiency.

[0026] 2. The foam transfer jig is inserted into the center hole of the foam through the plug-in part, and the foam gasket is evenly grasped in combination with the vacuum adsorption hole on the step adsorption surface. The positioning accuracy of the sleeve is high, which avoids foam tearing caused by uneven manual force and significantly improves the yield rate.

[0027] 3. The foam gasket conveying component peels off the bottom paper through the paper peeling channel, the anti-sticking plate realizes continuous feeding of foam, and the waste discharge component uses vacuum adsorption and locking needles to simultaneously remove waste, ensuring the continuous operation of the production line and realizing stable and efficient automatic supply of foam gaskets.

[0028] 4. The staggered arrangement plate of the screw conveying component is suitable for screws of different specifications. Flexible production can be achieved by dynamically adjusting the feeding rhythm. The foam transfer jig can be quickly changed to adapt to a variety of foam sizes.

[0029] 5. The elastic clamping mechanism of the hydraulic buffer prevents damage to the screws due to overpressure, and the clearance hole design of the foam clamping plate ensures that the foam is evenly pressed around the periphery without warping problems.

[0030] 6. Full process automation reduces manual dependence and significantly reduces labor costs. Automatic waste removal and bottom paper recycling reduce material waste.

[0031] 7. For high-precision waterproofing and shock-absorbing scenarios such as roof rack screws and new energy battery box screws, automated assembly is used to ensure that there is no contact contamination between the foam gasket and the sticky surface of the screw, thereby improving the quality of the finished product.

[0032] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A three-dimensional schematic diagram of an embodiment of the present invention Figure 1 .

[0034] Figure 2 A three-dimensional schematic diagram of an embodiment of the present invention Figure 2 .

[0035] Figure 3 It is a top view of an embodiment of the present invention.

[0036] Figure 4 This is a three-dimensional state diagram of the foam transfer jig according to an embodiment of the present invention when working at the foam gasket conveying assembly.

[0037] Figure 5 It is a three-dimensional schematic diagram and a partial enlarged diagram of the robot arm and the foam transfer fixture according to an embodiment of the present invention.

[0038] Figure 6 It is a three-dimensional schematic diagram and a partial enlarged diagram of the foam waste discharge component according to an embodiment of the present invention.

[0039] Figure 7 It is a three-dimensional schematic diagram of a turntable and a screw loading station according to an embodiment of the present invention.

[0040] Figure 8 It is a structural schematic diagram of the screw loading station according to an embodiment of the present invention.

[0041] Fig. 9 A three-dimensional schematic diagram of a screw conveying assembly according to an embodiment of the present invention Figure 1 .

[0042] Fig.10 A three-dimensional schematic diagram of a screw conveying assembly according to an embodiment of the present invention Figure 2 .

[0043] Fig.11 It is a three-dimensional schematic diagram of a screw turning mechanism according to an embodiment of the present invention.

[0044] Fig.12 It is a three-dimensional schematic diagram of a screw feeding assembly according to an embodiment of the present invention.

[0045] Fig.13 It is a three-dimensional schematic diagram of a turntable, a screw blanking assembly and a screw pressing station according to an embodiment of the present invention.

[0046] Fig.14 This is a partial initial state diagram of the foam roll according to an embodiment of the present invention.

[0047] Fig.15 This is a diagram showing the effect of the screw and the foam gasket after being assembled according to the embodiment of the present invention. DETAILED DESCRIPTION

[0048] like Figure 1-Figure 15 As shown, an automatic assembly device for automotive screw foam washers includes a frame 1 and a turntable 2 arranged on the frame 1 and rotating intermittently. The turntable 2 is provided with four screw positioning seats 21 arranged equidistantly around the center of the turntable. The screw positioning seats 21 are provided with a plurality of positioning holes 211 for accommodating screws A. In some embodiments, as Fig.15 As shown, the screw A is set as a double-headed screw for mounting the automobile luggage rack bracket and the roof, wherein both ends of the screw A are threaded parts A1, a truncated cone-shaped washer fitting part A2 is provided in the middle, and a square screw head A3 is provided at the threaded part A1 at one end, so that the washer fitting part A2 faces the screw head A3 and can be configured as a circular plane A21 for the foam washer B to fit and abut against, and the other side of the washer fitting part A2 has an outer diameter that gradually converges to the threaded part A1 to form a conical inclined part A22, so that the foam washer B can be stably fitted on the surface of the circular plane A21, and the threaded connection surface between the roof and the luggage rack is shock-absorbing and waterproof; Figure 1-Figure 3 As shown, the frame 1 is provided with a screw loading station I, a screw pressing station II, a screw sleeve washer station III and a screw unloading station IV in sequence along the rotation direction of the turntable 2, and the screw positioning seat 21 intermittently stays in the screw loading station I, the screw pressing station II, the screw sleeve washer station III and the screw unloading station IV in sequence with the intermittent work of the turntable 2.

[0049] like Figure 1-Figure 3 , Figure 5 , Figure 7-Figure 12As shown, the screw feeding station I is provided with a screw conveying assembly 3 for conveying screws A, a screw feeding assembly 4 for conveying multiple screws A on the screw conveying assembly 3 to the screw positioning seat 21, and a screw turning mechanism 5 for clamping and turning multiple screws A of the screw conveying assembly 3 by 180 degrees for the screw feeding assembly 4 to clamp and feed; like Figure 7-Figure 9As shown, the screw conveying assembly 3 includes a vibration plate 31, a straight vibration mechanism 32 and a screw arranging mechanism 33. The straight vibration mechanism 32 includes a linear vibrator 321, a screw conveying frame 322 and a screw screening plate 323 arranged above the linear vibrator 321. A screw screening channel 324 for linearly conveying screws A is provided between the screw conveying frame 322 and the screw screening plate 323. One end of the screw screening channel 324 is connected to the vibration plate 31, and the other end is connected to the screw entry hole 332. The screw arranging mechanism 33 includes an arranging partition 331, a screw entry hole 332 opened on the arranging partition 331, and a staggered arrangement of the screws A arranged at one end of the arranging partition 331 away from the straight vibration mechanism 32. The row plate 34 and the linear drive module 35 driving the dislocated arrangement plate 34 to slide back and forth horizontally along the arrangement partition 331, the dislocated arrangement plate 34 is provided with a plurality of screw arrangement slots 341 arranged transversely, the ends of the screw arrangement slots 341 facing the arrangement partition 331 are provided with notches 342 corresponding to the screw entry holes 332, the output end of the linear drive module 35 is connected to the dislocated arrangement plate 34, the arrangement partition 331 is provided with an entry baffle cylinder 36 at the position corresponding to the screw entry hole 332, the output end of the entry baffle cylinder 36 is provided with an entry baffle plate 361, the entry baffle cylinder 36 drives the entry baffle plate 361 to approach or move away from the screw entry hole 332, thereby The screw A in the entry hole 32 is blocked and released. The screw A in the screw conveying assembly 3 has a washer fitting portion A2 in the middle position thereof, which is respectively a gentle circular plane A21 and a conical inclined portion A22, so that the screw screening channel 324 can stably screen and transport the screw A. It is necessary to set the circular plane A21 of the screw A against the screw conveying frame 322 to avoid shaking caused by the transportation of the inclined portion A22. In this way, the screw A in the vibration plate 31 enters the screw screening channel 324 with its circular plane A21 facing downward, and then enters the screw entry hole 332 one by one, and enters the corresponding screw arrangement slots 341 on the offset arrangement plate 34 one by one. The screws A are arranged in the screw arrangement slot 341 for clamping by the screw turning mechanism 5. At the same time, in order to prevent the screw A from tipping over when entering the screw arrangement slot 341 from the screw entry hole 332, an anti-tilt baffle 343 is further provided on the side of the screw entry hole 332 away from the screw screening channel 324, so that the screw A can stably enter the screw arrangement slot 341. At the same time, during the period of time when the screw arrangement slot 341 is filled and waiting to be clamped, the entry baffle cylinder 36 will drive the entry baffle plate 361 to move down and block the screw entry hole 332, so as to avoid the problem of jamming caused by continuous conveying of the screw A by the direct vibration mechanism 32, thereby improving the stability of the screw A during the conveying process and ensuring that the screws A can be neatly arranged and transferred in multiple pieces at the same time.

[0050] like Fig.11As shown, since the subsequent screw A needs to install the foam gasket B on the screw positioning seat 21, the screw A arranged at the screw conveying component 3 needs to be flipped before it can be inserted into the screw positioning seat 21, so that the circular plane A21 can be set upward to facilitate the installation of the foam gasket B. Therefore, a screw flipping mechanism 5 is provided, and the screw flipping mechanism 5 includes a screw flipping frame 51 arranged on one side of the offset arrangement plate 34, a flipping and lifting cylinder 52 arranged on the screw flipping frame 51, a screw rotating cylinder 53 arranged at the output end of the flipping and lifting cylinder 52, and a flipping finger cylinder 54 arranged at the output end of the screw rotating cylinder 53. The flipping finger cylinder 54 is arranged just above the offset arrangement plate 34, and the output end of the flipping finger cylinder 54 is provided with two relatively arranged screw flipping clamps 55, and the screw flipping clamps 55 form corresponding cylindrical screw flipping clamping notches 55 for batch clamping the screws A. 1. At the same time, in order to improve the lifting stroke and lifting accuracy of the flip finger cylinder 54 and to adapt to the flipping of screws A of different lengths, the flip lifting cylinder 52 controls the axial height of the flip finger cylinder 54 to avoid interference with the work of the screw conveying component 3 and the screw feeding component 4. At the same time, the screws A on the screw conveying component 3 can be stably clamped in batches and then rotated 180° by the screw rotating cylinder 53 to stay in the clamping position of the screw feeding component 4. At the same time, a rotating buffer seat 531 is respectively arranged at both ends of the screw rotating cylinder 53, and a rotating protrusion 533 is arranged on the output shaft 532 of the screw rotating cylinder 53, so that when the screw rotating cylinder 53 is rotating back and forth by 180°, the rotating protrusion 533 can respectively counteract the two rotating buffer seats 531 one by one, thereby quickly realizing flipping and buffering, avoiding the position of the screw flip clamp 55 from being offset, and improving the accuracy of the workpiece; like Fig.12As shown, the screw feeding assembly 4 includes a screw feeding rack 41 arranged on one side of the turntable 2, a feeding transverse shifting cylinder 42 arranged on the screw feeding rack 41, a feeding lifting plate 43 arranged at the output end of the feeding transverse shifting cylinder 42, a feeding lifting cylinder 44 arranged on the feeding lifting plate 43, and a feeding finger cylinder 45 arranged at the output end of the feeding lifting cylinder 44. The output end of the feeding finger cylinder 45 is provided with two relatively arranged screw feeding clamping plates 46, and a plurality of screw feeding clamping notches 461 for clamping screws A are correspondingly formed between the screw feeding clamping plates 46. At the same time, in order to improve the lifting stroke and lifting accuracy of the feeding finger cylinder 45 and facilitate the feeding of screws A of different lengths, a feeding fine-tuning lifting cylinder 47 is also provided at the output end of the feeding lifting cylinder 44. The feeding finger cylinder 45 is arranged at the output end of the feeding fine-tuning lifting cylinder 47. The lowering cylinder 47 and the feeding lifting cylinder 44 control the axial height of the feeding finger cylinder 45 to avoid interference with the operation of the screw turning mechanism 5 and the turntable 2, and at the same time, can stably clamp the screws A of the screw turning mechanism 5 in batches and then stably insert them into the positioning holes 211 of the screw positioning seat 21 through the feeding transverse movement cylinder 42 and the feeding fine-tuning lifting cylinder 47 and the feeding lifting cylinder 44 to complete the batch feeding of the screws A. At the same time, by setting a feeding lifting slide rail structure 471 between the feeding fine-tuning lifting cylinder 47 and the feeding lifting plate 43, the feeding finger cylinder 45 can be stably lifted and lowered along the axial direction of the feeding lifting plate 43 to avoid tilting. At the same time, the end of the positioning hole 211 is preferably set to a truncated cone-shaped notch adapted to the gasket fitting portion A2 to avoid shaking of the screw A when moving in the screw positioning seat 21, thereby improving the accuracy and stability of batch feeding of the screws A.

[0051] like Figure 1-Figure 3 , Figure 7 as well as Fig.13 As shown, when the screw A at the screw feeding station I enters the screw positioning seat 21 of the turntable 2, it will enter the screw pressing station II for pressing as the turntable 2 rotates, so as to prevent the screw A from loosening and falling off when the turntable 2 rotates. The screw pressing station II is provided with a screw pressing frame 11 installed on the frame 1, a screw pressing cylinder 12 arranged on the screw pressing frame 11, and a screw pressing lifting plate 13 arranged at the output end of the screw pressing cylinder 12. The screw pressing lifting plate 3 is provided with a plurality of positioning plates 13 which are aligned with the screw positioning seat 21. The holes 211 correspond to the hydraulic buffers 14 one by one. The hydraulic buffers 14 are arranged just above the turntable 2 and are driven by the screw tightening cylinder 12 to axially approach or move away from the turntable 2. When the screw positioning seat 21 enters the screw tightening station II, the screw tightening cylinder 12 drives the hydraulic buffer 14 to move downward to tighten the screw A into the corresponding positioning hole 211. The hydraulic buffer 14 ensures the pressure of the screw A and avoids the problem of damage to the screw tightening cylinder 12 caused by applying pressure again when some screws A have been tightened.

[0052] like Figure 1-Figure 6 As shown, when the screw A at the screw tightening station II is tightened, it will enter the screw sleeve gasket station III with the rotation of the turntable 2, and the foam gasket B will be sleeved therein. A section of the foam gasket B is sticky, which is convenient for sticking to the circular plane A21, thereby preventing the foam gasket B from falling off. In order to facilitate the unified transportation and supply of the foam gasket B, a manipulator 6, a foam gasket conveying component 7 and a foam waste discharge component 8 are provided at the screw sleeve gasket station III, as shown in FIG. Figure 4 As shown, the foam gasket conveying assembly 7 includes a foam conveying frame 71 arranged on the frame 1, a foam roll conveying disk 72 rotatably arranged on the foam conveying frame 71 for mounting the foam roll, a waste collection reel 73 rotatably arranged on the foam conveying frame 71 for recycling the foam base paper, and a foam conveying motor 74 for driving the waste collection reel 73 to rotate and rewind. A stripping paper board 75 and an anti-sticking plate 76 are provided at one end of the foam conveying frame 7 away from the foam roll conveying disk 72. A stripping passage 751 for the foam base paper to pass through is provided between the anti-sticking plate 76 and the stripping paper board 75. The foam conveying motor 74 is used to drive the waste collection reel 73 to rotate and rewind, and then deliver the foam gasket B after the foam base paper is peeled off to the anti-sticking plate 76, wherein the partial state of the foam roll is as shown in FIG. Fig.14 As shown, the batch supply of foam rolls is customized. The foam roll includes foam washers B arranged in multiple columns and multiple rows in one column, foam waste B1 covering the foam washers B, and a foam backing paper. After the foam backing paper is peeled off, a section of the foam washers B will be sticky. The foam waste B1 is waste in the customized processing of the foam roll, and needs to be automatically removed when the foam transfer ring is used. A traction assembly 77 is provided between the paper stripping channel 751 and the waste collection drum 73, and the foam conveying motor 74 can simultaneously drive the traction assembly 77 through a belt. The foam backing paper is peeled off by working with the waste collection reel 73, wherein a foam cover plate 78 is preferably arranged above the paper peeling channel 751, and a foam feeding channel is provided between the foam cover plate 78 and the anti-sticking plate 76, so that the foam gasket B and the foam waste B1 after peeling off the backing paper can stably enter the surface of the anti-sticking plate 76 along the foam feeding channel to be clamped by the robot 6, wherein due to the traction force of the foam conveying motor 74, when the backing paper moves downward, the foam will move forward onto the Teflon anti-sticking plate 76, so that the foam energy is continuously and automatically supplied; like Figure 4 , Figure 6As shown, the foam waste discharge assembly 8 includes a foam waste discharge plate 81 arranged opposite to the anti-sticking plate 76, a foam waste discharge transverse displacement cylinder 82 for driving the foam waste discharge plate 81 to approach or move away from the anti-sticking plate 76, and a foam waste discharge lifting cylinder 83 for driving the foam waste discharge transverse displacement cylinder 82 to axially rise and fall. The foam waste discharge plate 81 is used to bring the foam waste B1 on the anti-sticking plate 76 away from the anti-sticking plate 76. A waste chamber 84 is provided between the foam waste discharge lifting cylinder 83 and the foam conveying rack 71. The foam waste discharge plate 81 is provided with a plurality of gasket yielding grooves 811 arranged corresponding to the foam gasket B. The bottom surface of the foam waste discharge plate 81 is provided with a plurality of waste vacuum adsorption holes 812 and waste locking pins 813. When the foam is discharged, the foam waste discharge lifting cylinder 83 drives the foam waste discharge plate 81 to move upward, and then advances to the top of the anti-sticking plate 76 through the foam waste discharge transverse displacement cylinder 82. The waste discharge lifting cylinder 83 moves down again, so that the foam waste discharge plate 81 presses the foam waste B1 at the front end, inserts the waste locking pin 813 into the foam waste B1 to press and flatten it, and vacuum absorbs the foam waste B1 through the waste vacuum adsorption hole 812. At the same time, the setting of the gasket yielding groove 811 avoids the influence on the adjacent foam gasket B and avoids the foam gasket B being taken away. At this time, the manipulator 6 drives the foam transfer fixture to insert the plug-in part 621 into the center of the front end foam gasket B, and vacuum absorbs multiple foam gaskets B in the column. The foam waste discharge transverse movement cylinder 82 retracts to drive the foam waste B1 to move backward and separate from the foam gasket B, and then takes the foam waste B1 away from the anti-sticking plate 76 and moves it to at least above the waste chamber 84. The waste vacuum adsorption hole 812 stops sucking air, and the foam waste B1 directly falls into the waste chamber 84 to complete the unified collection, recycling and waste discharge action; like Figure 5As shown, the manipulator 6 is loaded with a foam transfer jig, and the foam gasket B on the foam gasket conveying assembly 7 is sleeved onto a plurality of screws A in the screw sleeve gasket station III through the foam transfer jig. The foam transfer jig includes a foam transfer frame 61 arranged at the working end of the manipulator 6, a plurality of foam adsorption cylinders 62 arranged on the foam transfer frame 61, and a foam pressing plate 63 arranged on the foam transfer frame 61. The end of the foam adsorption cylinder 62 is provided with a plug-in portion 621 for inserting into the foam gasket B, and the plug-in portion 621 and the cylinder body of the foam adsorption cylinder 62 are connected. A step adsorption surface 622 is formed between the surfaces, and a plurality of foam vacuum adsorption holes 623 are arranged around the step adsorption surface 622. A first screw clearance hole 624 is arranged at the center of the plug-in portion 621. A plurality of second screw clearance holes 631 corresponding to the positioning holes 211 on the screw positioning seat 21 are arranged on the foam pressing plate 63. When the foam waste discharge plate 81 presses the front end of the foam waste B1, the manipulator 6 will drive the foam transfer jig to insert the plug-in portion 621 into the foam gasket B on the anti-sticking plate 76, and then after the foam waste B1 is peeled off, the foam The foam waste B1 on the other side of the foam gasket B is pulled by the foam cover plate 78 and the foam backing paper. After the foam waste B1 is peeled off, the foam transfer jig will absorb the foam gasket B through the foam vacuum adsorption hole 623 and take the foam gasket B away from the column separately and insert it into the multiple screws A in the screw sleeve gasket station III. Due to the setting of the first screw yield hole 624, the plug-in portion 621 will be directly inserted into the screw A, and after closing the foam vacuum adsorption hole 623, the sticky end of the foam gasket B will fall onto the circular plane A21 of the screw A, and the foam gasket B will be completely transferred to the circular plane A21 of the screw A. The foam gasket B works in a ring-like manner, and the setting of the step adsorption surface 622 ensures the limitation of the foam gasket B when it is clamped, and provides sufficient installation space for the foam vacuum adsorption hole 623, thereby improving the adsorption force and preventing it from falling. At the same time, when it is installed on the screw A, it can pre-tighten the foam gasket B. After the foam gasket B is installed, the manipulator 6 drives the foam adsorption cylinder 62 to move up and separate from the screw A, and then the second screw clearance hole 631 on the foam pressing plate 63 is inserted into the corresponding screw A, and the circumference of the foam gasket B is pressed to the surface of the circular plane A21 to complete the assembly.

[0053] like Figure 1-Figure 3 , Fig.13As shown, after the screw A of the screw sleeve washer station III is assembled, it will enter the screw unloading station IV for batch unloading as the turntable 2 rotates, wherein the screw unloading station IV is provided with a screw unloading component 9 for sending the screw A after the sleeve from the screw positioning seat 21 to the outside of the turntable 2, and the screw unloading component 9 includes a screw unloading rack 91 arranged on one side of the turntable 2, an unloading transverse moving rack 92 arranged on the screw unloading rack 91, an unloading transverse moving cylinder 93 arranged on the unloading transverse moving rack 92, an unloading lifting cylinder 94 arranged at the output end of the unloading transverse moving cylinder 93, and an unloading finger cylinder 95 arranged at the output end of the unloading lifting cylinder 94, and the output end of the unloading finger cylinder 95 is provided with two relatively arranged screw unloading splints 96, and the screw unloading splints 96 form a plurality of corresponding parts. The unloading finger cylinder 95 is driven by the unloading transverse movement cylinder 93 and the unloading lifting cylinder 94 to send multiple assembled screws A on the screw positioning seat 21 in the screw unloading station IV out of the turntable 2 in the same batch. In order to improve the stability of the unloading finger cylinder 95 during the transverse movement, there is an unloading transverse movement guide rail 921 between the unloading lifting cylinder 94 and the unloading transverse movement frame 92. At the same time, an unloading slide 97 is provided on one side of the turntable 2, so that after the assembled screws A enter the screw unloading station IV, the unloading transverse movement cylinder 93 and the unloading lifting cylinder 94 will drive the unloading finger cylinder 95 to clamp the screws A in batches and move them to the top of the unloading slide 97, and loosen the screws A and slide them to the outside of the frame 1 with the unloading slide 97 to complete the batch unloading and packaging.

[0054] like Figure 1-Figure 15 As shown, the automotive screw foam gasket automatic assembly equipment of the present invention includes the following steps corresponding to the four workstations: S1. Screw loading station Ⅰ S1.1: The vibration plate 31 performs directional sorting on the screws A, and the direct vibration mechanism 32 transports the screws A along a linear path to the position of the notch 342 of the offset arrangement plate 34; S1.2: The offset arrangement plate 34 reciprocates horizontally, so that the arrangement slot 341 and the notch 342 are periodically aligned with the direct vibration mechanism 32, and the screws A are received one by one and arranged in a queue in the screw arrangement slot 341 of the offset arrangement plate 34 laterally; S1.3: The screw flipping mechanism 5 drives the flipping finger cylinder 54 to flip the screw A 180° through the flipping lifting cylinder 52 and the screw rotating cylinder 53, and adjusts the posture of the screw A to adapt to the direction of the positioning hole 211; S1.4: The feeding lateral movement cylinder 42 and the feeding lifting cylinder 44 of the screw feeding assembly 4 drive the screw feeding clamp 46 to grab the screws A in the screw turning mechanism 5 in batches and transfer them to the positioning holes 211 of the screw positioning seat 21 of the turntable 2; S1.5: The turntable 2 rotates intermittently to move the positioning seat 21 loaded with the screw A to the next station; S2. Screw tightening station Ⅱ S2.1: The positioning seat 21 loaded with screw A enters the screw pressing station II, and the screw pressing cylinder 12 drives the screw pressing lifting plate 13 to make the hydraulic buffer 14 press down the head of screw A to fix the position of screw A and eliminate shaking; S2.2: The turntable 2 rotates intermittently to move the positioning seat 21 of the tightened screw A to the next station; S3. Screw washer station Ⅲ S3.1: The compacted positioning seat 21 enters the screw sleeve gasket station III, before which the foam gasket conveying assembly 7 is started, the foam roll conveying disc 72 releases the foam roll with the bottom paper, the foam conveying motor 74 drives the waste collection reel 73 to rewind the bottom paper, and after the bottom paper is peeled off through the paper stripping channel 751, the foam gasket B with the foam waste B1 is laid flat to the material taking position of the anti-sticking plate 76; S3.2: The foam waste discharge transverse movement cylinder 82 of the foam waste discharge assembly 8 moves forward, and the foam waste discharge lifting cylinder 83 drives the foam waste discharge plate 81 to descend to the surface of the anti-sticking plate 76, and the waste vacuum adsorption hole 812 on the bottom surface of the foam waste discharge plate 81 starts adsorption, and the waste locking needle 813 pierces the edge of the front end foam waste B1, and the foam waste discharge transverse movement cylinder 82 remains stationary, completing the waste fixation; S3.3: The manipulator 6 drives the foam transfer jig to move above the anti-sticking plate 76, the plug-in portion 621 of the foam adsorption cylinder 62 is inserted into the center hole of the foam gasket B, and the foam vacuum adsorption hole 623 of the step adsorption surface 622 is activated to adsorb the foam gasket B; S3.4: The foam waste discharge transverse movement cylinder 82 drives the foam waste discharge plate 81 to horizontally move out of the anti-sticking plate 76 area to above the waste chamber 84, the waste vacuum adsorption hole 812 is closed, the foam waste B1 falls into the waste chamber 84, and the foam waste discharge lifting cylinder 83 lifts the foam waste discharge plate 81 to return to the initial state; S3.5: The manipulator 6 carries the adsorbed foam gasket B and moves to the top of the screw positioning seat 21 of the turntable 2, and peels off the foam waste B1 on the other side, the foam vacuum adsorption hole 623 is closed, and the sticky side of the foam gasket B falls to the gasket fitting part A21, and is vertically pressed down to make the foam gasket B fit into the gasket fitting part A2 outside the screw A; S3.6: After the manipulator 6 completes the ring assembly, the foam transfer fixture is moved backward, and the front foam pressing plate 63 is driven to press down along with the foam transfer frame 61, so that the second screw clearance hole 631 avoids the outer diameter of the screw A, and the foam pressing plate 63 applies uniform pressure to the circumference of the foam gasket B to make it fit tightly to the surface of the screw A, and the manipulator 6 is reset to complete the automated assembly of the foam gasket B; S3.7: The turntable 2 rotates intermittently to transfer the positioning seat 21 loaded with the finished screw A to the next station; S4. Screw cutting station Ⅳ S4.1: After the positioning seat 21 loaded with the finished screw A enters the screw unloading station IV, the unloading transverse cylinder 93 and the unloading lifting cylinder 94 drive the unloading finger cylinder 95 to clamp the assembled screw A, take out the finished screw A from the positioning seat 21, and transfer it to the unloading slide 97 to slide out of the rack 1, and collect and bag it uniformly; S4.2: The empty positioning seat 21 rotates with the turntable 2 to return to the screw loading station I and enter the next cycle; During the whole process, the frame 1 is sequentially provided with a screw loading station I, a screw pressing station II, a screw sleeve washer station III and a screw unloading station IV along the rotation direction of the turntable 2. The screw conveying assembly realizes directional arrangement of the screws through the vibration plate 31, the direct vibration mechanism 32 and the screw arrangement mechanism 33, and realizes batch loading through the screw flipping mechanism and the screw feeding assembly. The screw pressing station II is used to press the multiple screws A after loading. The manipulator 6 of the screw sleeve washer station III is equipped with a foam transfer fixture to accurately grasp the foam washer B and sleeve it on the surface of the screw A, and cooperate with the foam pressing plate 63 to enhance the fit. The foam washer conveying assembly 7 realizes continuous feeding through the bottom paper peeling and the anti-sticking plate 76 feeding. The foam waste discharge assembly 8 simultaneously removes the waste. The screw unloading assembly 9 removes the finished screws A in batches, realizing the fully automatic assembly of the screw A and the foam washer B, which significantly improves the efficiency and yield rate, effectively prevents the foam tearing and viscosity failure caused by manual operation, and meets the large-scale production needs of automotive waterproof and shock-absorbing screws.

Claims

1. An automatic assembly equipment for automotive screw foam washers, comprising a frame, and a turntable arranged on the frame and rotating intermittently, the turntable is provided with a plurality of screw positioning seats arranged at equal intervals, the screw positioning seats are provided with a plurality of positioning holes for receiving screws, characterized in that: The frame is provided with a screw loading station, a screw sleeve washer station and a screw unloading station in sequence along the rotation direction of the turntable. The screw positioning seat intermittently stays in the screw loading station, the screw sleeve washer station and the screw unloading station in sequence. The screw loading station is provided with a screw conveying assembly for conveying screws and a screw loading assembly for conveying one or more screws on the screw conveying assembly to the screw positioning seat. The screw sleeve washer station is provided with a manipulator and a foam washer conveying assembly. The manipulator is loaded with a foam transfer jig, and the foam washer on the foam washer conveying assembly is sleeved onto the screw in the screw sleeve washer station through the foam transfer jig. The screw unloading station is provided with a screw unloading assembly for conveying the screw after sleeved from the screw positioning seat out of the turntable.

2. The automatic assembly equipment for automobile screw foam washers according to claim 1, characterized in that: The foam transfer jig includes a foam transfer frame arranged at the working end of the manipulator, a plurality of foam adsorption cylinders arranged on the foam transfer frame, and a foam pressing plate arranged on the foam transfer frame. The end of the foam adsorption cylinder is provided with a plug-in portion for inserting into a foam gasket, and a step adsorption surface is formed between the plug-in portion and the foam adsorption cylinder. A plurality of foam vacuum adsorption holes are arranged around the step adsorption surface. A first screw clearance hole is arranged at the center of the plug-in portion, and a plurality of second screw clearance holes corresponding to the positioning holes on the screw positioning seat are arranged on the foam pressing plate.

3. The automatic assembly equipment for automobile screw foam washers according to claim 2 is characterized in that: The foam gasket conveying assembly includes a foam conveying rack arranged on a frame, a foam roll conveying disk rotatably arranged on the foam conveying rack for mounting a foam roll, a waste collection reel rotatably arranged on the foam conveying rack for recycling foam base paper, and a foam conveying motor driving the waste collection reel to rotate and rewind. A stripping paper board and an anti-sticking plate are provided at one end of the foam conveying rack away from the foam roll conveying disk, a stripping passage for the foam base paper to pass through is provided between the anti-sticking plate and the stripping paper board, and the foam conveying motor is used to drive the waste collection reel to rotate and rewind, and then deliver the foam gasket after the foam base paper is peeled off to the anti-sticking plate.

4. The automatic assembly equipment for automobile screw foam washers according to claim 3 is characterized by: A foam waste discharge assembly is provided on one side of the frame corresponding to the foam gasket conveying assembly, and the foam waste discharge assembly includes a foam waste discharge plate arranged opposite to the anti-sticking plate, a foam waste discharge transverse movement cylinder driving the foam waste discharge plate to approach or move away from the anti-sticking plate, and a foam waste discharge lifting cylinder driving the foam waste discharge transverse movement cylinder to axially lift and lower the foam waste discharge plate, and the foam waste discharge plate is used to bring the foam waste on the anti-sticking plate away from the foam gasket conveying assembly.

5. The automatic assembly equipment for automobile screw foam washers according to claim 4 is characterized in that: The foam waste discharge assembly also includes a waste chamber arranged between the foam waste discharge lifting cylinder and the foam conveying rack, the foam waste discharge plate is provided with a plurality of gasket yielding grooves corresponding to the foam gaskets, and the bottom surface of the foam waste discharge plate is provided with a plurality of waste vacuum adsorption holes and waste locking needles.

6. The automatic assembly equipment for automobile screw foam washers according to any one of claims 1 to 5, characterized in that: The screw conveying assembly includes a vibration plate, a direct vibration mechanism and a screw arrangement mechanism. The screw arrangement mechanism includes an arrangement partition, a screw entry hole opened on the arrangement partition, an offset arrangement plate arranged at one end of the arrangement partition away from the direct vibration mechanism, and an arrangement drive mechanism for driving the offset arrangement plate to slide back and forth horizontally along the arrangement partition. The offset arrangement plate is provided with a plurality of transversely arranged screw arrangement grooves, and the ends of the screw arrangement grooves facing the arrangement partition have notches that can be connected to the screw entry holes. One end of the direct vibration mechanism is connected to the vibration plate, and the other end is connected to the screw entry hole, and the screws screened in the vibration plate are sent one by one to the offset arrangement plate through the screw entry holes.

7. An automatic assembly equipment for automotive screw foam washers according to claim 6, characterized in that: The arrangement drive mechanism is a linear drive module, the output end of which is connected to the offset arrangement plate, and an entry blocking cylinder is provided at the arrangement partition corresponding to the screw entry hole, and an entry blocking plate is provided at the output end of the entry blocking cylinder. The entry blocking cylinder drives the entry blocking plate to approach or move away from the screw entry hole, thereby blocking and releasing the screw at the screw entry hole.

8. An automatic assembly equipment for automotive screw foam washers according to claim 7, characterized in that: The screw feeding assembly includes a screw feeding rack arranged on one side of the turntable, a feeding transverse movement cylinder arranged on the screw feeding rack, a feeding lifting plate arranged at the output end of the feeding transverse movement cylinder, a feeding lifting cylinder arranged on the feeding lifting plate, and a feeding finger cylinder arranged at the output end of the feeding lifting cylinder. The output end of the feeding finger cylinder is provided with two relatively arranged screw feeding clamps, and screw feeding clamping grooves are correspondingly formed between the screw feeding clamps. The feeding finger cylinder is driven by the feeding transverse movement cylinder and the feeding lifting cylinder to synchronously transfer multiple screws on the offset arrangement plate to the screw positioning seat.

9. An automatic assembly equipment for automotive screw foam washers according to claim 8, characterized in that: The direct vibration mechanism includes a linear vibrator and a screw conveying rack and a screw screening plate arranged above the linear vibrator, a screw screening channel for linearly conveying screws is provided between the screw conveying rack and the screw screening plate, one end of the screw screening channel is connected with the vibration disk, and the other end is connected with the screw entry hole, a screw turning mechanism is provided between the screw feeding assembly and the staggered arrangement plate, which clamps and turns multiple screws on the staggered arrangement plate and then provides them for the screw feeding assembly to clamp and feed, the screw turning mechanism includes a screw turning frame arranged on one side of the staggered arrangement plate, a turning and lifting cylinder arranged on the screw turning frame, a screw rotating cylinder arranged at the output end of the turning and lifting cylinder, and a turning finger cylinder arranged at the output end of the screw rotating cylinder, the turning finger cylinder is arranged above the staggered arrangement plate, and the output end of the turning finger cylinder is provided with two relatively arranged screw turning clamps, and screw turning clamping notches are correspondingly formed between the screw turning clamps.

10. An automatic assembly equipment for automotive screw foam washers according to any one of claims 1 to 5, characterized in that: The frame is also provided with a screw pressing station between the screw feeding station and the screw sleeve washer station along the rotation direction of the turntable, the turntable is provided with four screw positioning seats arranged at equal distances, the screw positioning seats are provided with at least two positioning holes for accommodating screws, the screw pressing station is provided with a screw pressing frame installed on the frame, a screw pressing cylinder arranged on the screw pressing frame, and a screw pressing lifting plate arranged at the output end of the screw pressing cylinder, the screw pressing lifting plate is provided with a plurality of hydraulic buffers corresponding to the positioning holes on the screw positioning seat, the hydraulic buffer is arranged just above the turntable, and is driven axially by the screw pressing cylinder Close to or away from the turntable, the screw unloading assembly includes a screw unloading rack arranged on one side of the turntable, an unloading transverse moving rack arranged on the screw unloading rack, an unloading transverse moving cylinder arranged on the unloading transverse moving rack, an unloading lifting cylinder arranged at the output end of the unloading transverse moving cylinder, and an unloading finger cylinder arranged at the output end of the unloading lifting cylinder. The output end of the unloading finger cylinder is provided with two relatively arranged screw unloading clamping plates, and a plurality of screw unloading clamping grooves are correspondingly formed between the screw unloading clamping plates. The unloading finger cylinder is driven by the unloading transverse moving cylinder and the unloading lifting cylinder to send a plurality of screws on the screw positioning seat in the screw unloading station out of the turntable in the same batch.

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