Endurance test system and method for limiting stopper for coating

Abstract

The invention relates to the technical field of coating limiter detection equipment, in particular to a coating limiter detection device which comprises a supporting guide seat used for supporting, two sets of first synchronous belt wheels are rotationally clamped to the rear portion of the inner end face of the supporting guide seat, and the two sets of first synchronous belt wheels are connected in a meshed mode through a first synchronous belt. According to the device, automatic positioning and limiting can be carried out when the coating limiter is detected, the convenience of equipment detection is effectively improved, meanwhile, disassembly is not needed when a reset spring in the coating limiter after a durability test is detected, and the detection accuracy is improved by detecting the elastic limiting stroke of the reset spring to the limiting baffle. The durability of the reset spring can be rapidly and conveniently detected, and the convenience of detecting the coating limiter and the reset spring by the equipment is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coating stopper detection equipment, and in particular to a coating stopper durability testing system and method. Background Art

[0002] The painting limiter plays a very important role in the entire spraying process. On the one hand, it limits the maximum opening of the car door and can also keep the car door at the maximum opening; on the other hand, it can also limit the minimum opening of the car door to prevent the car door from opening automatically. The painting limiter is prone to fatigue attenuation after long-term use, which leads to insufficient stability of the limiter in limiting the car door. Therefore, it is necessary to test the durability of the limiter to facilitate the subsequent real-time replacement of the limiter accessories and improve the efficiency of door spraying.

[0003] In the prior art, such as the invention patent disclosed in the publication number: CN113865850B, a system and method for durability testing of a limiter for coating, including: a limiter durability test device, a limiter tension detection device and a limiter spring tension detection device; the limiter durability test device includes a reciprocating mechanism and a control device, the reciprocating mechanism includes a fixed seat and a linear reciprocating drive mechanism, the control device is electrically connected to the linear reciprocating drive mechanism, and the control device is configured to: determine the operating stroke of the linear reciprocating drive mechanism according to the input limiter model, and control the linear reciprocating drive mechanism to drive the limiter arm of the limiter to be tested to reciprocate the simulated operating times according to the input simulated motion times. The present invention can visualize the wear degree of the limiter and the service life of the limiter spring through testing and detection, obtain the actual durability of the limiter, and reversely develop and design the "0" limiter.

[0004] Although the above-mentioned testing equipment can perform durability testing on the limit switches, it is not convenient to perform synchronous testing on multiple groups of limit switches. At the same time, when performing durability testing on the limit switches, the above-mentioned equipment is not convenient for aligning and limiting the limit switches. Moreover, if the above-mentioned limit switches detect spring attenuation, the springs need to be disassembled for testing, which greatly reduces the efficiency and stability of testing when testing multiple groups of limit switches. Therefore, a durability testing system and method for limit switches for coating are needed to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a system and method for testing the durability of a coating stopper, so as to solve the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a durability test system for a coating stopper, comprising a support guide seat for support, two groups of first synchronous pulleys are rotatably clamped at the rear part of the inner end surface of the support guide seat, the two groups of the first synchronous pulleys are meshed and connected by a first synchronous belt, and the interiors of the two groups of the first synchronous pulleys are both provided with a first screw rod for transmission, a servo motor is provided at the rear part of one group of the first synchronous pulleys, the inner end surface of the support guide seat is threadedly connected to a limiter detection fixture through the first screw rod, and at least six groups of coating stoppers are fixedly clamped at equal distances on the inner end surface of the limiter detection fixture, A durability detection device, the durability detection device is fixedly arranged on the upper end surface of the support guide seat near the front; A spring testing device, the spring testing device is fixedly arranged on the lower end surface of the support guide seat near the rear; Slot-type photoelectric sensors, there are two groups of slot-type photoelectric sensors, which are respectively arranged on the two sides of the support guide seat, the two slot-type photoelectric sensors located at the front are opposite to the center of the durability detection device, and the two slot-type photoelectric sensors located at the rear are opposite to the center of the spring testing device. The two groups of slot-type photoelectric sensors can respectively align the durability detection device and the spring testing device, which is convenient for the subsequent real-time detection of the limiter detection fixture in the path, and then facilitates the subsequent detection and positioning of the limiter detection fixture when it is moved to the durability detection device and the spring testing device, thereby improving the accuracy of the subsequent detection of the coating limiter.

[0007] Preferably, the painting limiter includes a limiter holder for support and positioning, a limit guide seat is arranged near the rear of the lower end surface of the limiter holder, and a limit baffle is hinged near the front of the lower end surface of the limiter holder, and two groups of limit slots for limiting are opened on the inner end surface of the limit baffle, the limit baffle and the limit guide seat are elastically fixedly connected by a return spring, and a guide roller is elastically fixedly connected between the limit baffle and the limit guide seat through the limit slot, a connecting arm is fixedly arranged at the center of the upper end surface of the guide roller, and a docking head is arranged at the end of the connecting arm, the return spring is used to tighten the limit baffle to ensure the elastic pressing limit of the limit slot to the guide roller, and improve the stability of the support limit of the connecting arm, and two groups of positioning holes are arranged inside the limiter holder, and the positioning holes can be docked and positioned with the plug-in sliding shaft, so as to facilitate the subsequent positioning of the painting limiter to the positioning base.

[0008] Preferably, the durability detection device includes a support base for support, a positioning card seat is fixedly arranged on the upper end surface of the support base, three groups of bearing seats are equidistantly arranged at the top of the inner end surface of the positioning card seat, the inner end surfaces of the three groups of bearing seats are rotatably clamped with a transmission card shaft, and the outer end surfaces of the transmission card shaft are provided with two groups of transmission devices for detection, the lower end surfaces of the two groups of transmission devices are hinged with a fixed rotating seat through a connecting rotating plate, and six groups of guide slides are equidistantly fixed on the lower end surface of the fixed rotating seat, located A positioning device is fixedly provided at the center of the lower end surface of the guide slide, and a reduction motor is provided at the side end surface of the positioning base opposite to the transmission clamp shaft. When the painting limiter is detected, the reduction motor can synchronously drive the two sets of transmission devices to rotate through the transmission clamp shaft. The two sets of transmission devices can cyclically pull the guide slide and the positioning device up and down by connecting the rotating plate, thereby cyclically pulling the joint and the connecting arm limited by the positioning device, and then detecting the painting limiter, thereby improving the efficiency of detecting the painting limiter.

[0009] Preferably, the positioning device includes an alignment card seat, the upper end surface of the alignment card seat is fixedly provided with a connecting card sleeve for connection, and a positioning card slot is opened at the center of the lower end surface of the alignment card seat, and a guide slide groove is opened at the center of the side wall of the positioning card slot, a stepping motor is arranged near the upper part of the side end surface of the alignment card seat, and a second screw rod is fixedly arranged at the output end of the stepping motor, the inner end surface of the guide slide groove is slidably connected with a ball slide, and a plug-in card shaft is arranged at the bottom of the inner end surface of the ball slide, the inner end surface of the alignment card seat is threadedly connected to the ball slide through the second screw rod, and the transmission device includes a limit rotating seat for limiting positioning, and the limit rotating seat One end of the first chuck is slidably clamped with the first chuck, and the other end of the limit swivel is slidably clamped with the second chuck, a transmission motor is arranged at the top of the inner end surface of the first chuck, and a third screw rod threadedly connected to the limit swivel is arranged at the output end of the transmission motor, the transmission motor can adjust the distance between the limit swivel and the center of the first chuck through the third screw rod, so as to facilitate the subsequent regulation of the rotation diameter of the limit swivel when the first chuck and the second chuck are rotating in a circle, and then adjust the test stroke of the positioning device and the coating limiter driven by the limit swivel, and a fixing hole is arranged directly opposite to the guide slot, which is used for limiting the positioning of the plug-in card shaft and limiting the positioning, and can improve the stability of the limit of the plug-in card shaft to the joint.

[0010] Preferably, the limiter detection fixture includes an alignment base for guiding, a side end surface of the alignment base is symmetrically provided with a threaded guide seat, and a positioning baffle is fixedly provided at the center of the side end surface of the threaded guide seat, the positioning baffle can cooperate with the groove-type photoelectric sensor, a connecting cover plate is provided on the upper end surface of the alignment base, and a steering motor is fixedly provided at the center of the upper end surface of the connecting cover plate, a fourth screw rod is fixedly provided at the output end of the steering motor, the inner end surface of the alignment base is slidably connected to a positioning card seat through the fourth screw rod thread, and at least six groups of plug-in slide shafts are equidistantly provided on the lower end surface of the positioning card seat, when limiting the coating limiter after loading, the steering motor can be threadedly connected with the positioning card seat through the fourth screw rod, thereby driving multiple groups of plug-in slide shafts to be plugged and limited to the positioning hole inside the limiter card seat, and at the same time, the positioning card seat can be synchronously pressed on the upper part of the limiter card seat to improve the stability of the limit.

[0011] Preferably, the spring testing device includes a supporting base for support, the lower end surface of the supporting base is rotatably clamped with two groups of second synchronous pulleys, and the two groups of the second synchronous pulleys are meshed and connected by a second synchronous belt, a fixed motor is arranged at the lower end surface of the supporting base directly opposite to the second synchronous pulley, a fifth screw rod is arranged inside the two groups of the second synchronous pulleys, the inner end surface of the supporting base is threadedly connected to a threaded base through two groups of the fifth screw rods, a positioning motor is fixedly arranged at the center of the front end surface of the threaded base, a sixth screw rod is fixedly arranged at the output end of the positioning motor, and the threaded base The inner end surface of the seat is threadably connected to a threaded slide via the sixth screw rod, and six groups of detection devices are equidistantly arranged on the upper end surface of the threaded slide. The positioning motor can drive the threaded slide to perform threaded displacement via the sixth screw rod, so that the threaded slide can synchronously drive the six groups of detection devices to synchronously move the limit baffle, thereby performing tension pulling detection on the reset spring, thereby improving the stability of the equipment in performing synchronous detection of multiple groups of reset springs. The fixed motor can drive the threaded base to move up and down inside the support holder via the fifth screw rod, thereby facilitating the subsequent detection device to reach the inside of the coating limiter, thereby improving the convenience and accuracy of testing the reset spring.

[0012] Preferably, the detection device includes a fixed support, and two groups of fixed top plates for alignment are arranged near the rear of the upper end surface of the fixed support, and two groups of detection card plates are slidably connected to the fixed top plate at the inner end surface of the fixed support, and a spring clamp ring is arranged at the bottom of the inner end surface of the detection card plate, and a micro motor is arranged at the center of the rear end surface of the fixed support, and a seventh screw rod is fixedly arranged at the output end of the micro motor, and a detection stopper is slidably connected to the inner end surface of the fixed support through the seventh screw rod thread. Plate, two groups of proximity sensors are arranged near the top of the inner end surface of the detection baffle. When the limit baffle is detected, the reset spring can elastically limit the limit baffle by elastic expansion and contraction. After the reset spring has undergone the first multiple groups of endurance tests, if the elastic force of the reset spring is subjected to irreversible deformation, at this time, under the push of the detection card plate, the displacement spacing of the limit baffle is greater than the preset spacing of the limit baffle, then the proximity sensor preset in advance can detect the limit baffle, thereby improving the accuracy of multiple groups of detection of the reset spring.

[0013] Preferably, the plug-in card shaft is adapted to the docking joint, and the ball slide is adapted to the docking joint through the plug-in card shaft and then fixedly connected to the connecting arm, and the positioning card seat is fixedly connected to the inside of the limiter card seat through the plug-in slide shaft. The positioning card seat can be positioned and plugged into the inside of the limiter card seat through the plug-in slide shaft, and the positioning card seat can be synchronously pressed onto the upper part of the limiter card seat. The double positioning and limiting operations can improve the stability of the painting limiter when detecting the limit.

[0014] Preferably, the upper end of the connecting rotating plate is rotatably connected to the limit rotating seat, and the lower end of the connecting rotating plate is rotatably connected to the fixed rotating seat, and the transmission device drives the guide slide plate to slide up and down inside the supporting base through the connecting rotating plate. The guide slide plate can be moved up and down at equal intervals under the cyclic drive of the connecting rotating plate, so that the subsequent positioning device can drive the guide roller to cyclically limit the position inside the two limit slots through the joint, and cyclically test the durability of the coating limiter. The connecting rotating plate can provide sufficient rotation limiting space for the up and down displacement of the fixed rotating seat, thereby improving the stability of the sliding displacement of the guide slide plate inside the supporting base.

[0015] Preferably, the limiter detection fixture is adapted to the first screw rod through the threaded guide seat and then slidably engaged with the inner end surface of the support guide seat, and the positioning baffle is directly opposite to the inside of the slot-type photoelectric sensor, and the detection card plate and the fixed top plate are slidably inserted between the limit baffle and the limit guide seat. When the reset spring is detected, the fixed top plate and the detection card plate can be inserted between the limit guide seat and the limit baffle, so that when the detection card plate moves forward, the spring clamp can provide sufficient elastic force for guiding the detection card plate, thereby facilitating the pushing of the limit baffle to detect the durable elastic force and extension stroke of the reset spring. The two groups of slot-type photoelectric sensors can position the limiter detection fixture of the conveying displacement through the positioning baffle, thereby improving the accuracy of the subsequent durability detection device and spring testing device in positioning the coating limiter.

[0016] A testing method for a coating stopper durability testing system comprises the following steps: S1: Pre-loading, the staff can operate the external loading module to align the six sets of coating stoppers to the upper part of the alignment base through the stopper holder. The stopper holder can be aligned to the rear wall of the inner end surface of the alignment base to complete the pre-loading; S2: Feeding and conveying limit, the direction adjustment motor can drive the fourth screw rod at the bottom to rotate, and the fourth screw rod can drive the positioning card seat to move downward by thread, and the positioning card seat can be directly plugged into the inside of the limiter card seat through multiple sets of plug-in slide shafts, and at the same time, the positioning card seat can be pressed and limited at the top of the limiter card seat for a second time, so that the limiter card seat can be stably pressed on the upper part of the alignment base, thereby completing the feeding limit of the coating limiter; S3: For conveying and loading, the staff can start the servo motor, which can synchronously drive the two sets of first screws to rotate through the first synchronous pulley and the first synchronous belt. The two sets of first screws can be connected with the threaded guide seat through threads, thereby synchronously driving the alignment base and the multiple sets of coating limiters inside it to move toward the direction of the durability detection device; S4: Alignment and connection. When the alignment base is driven by the first screw rod to move to the slot-shaped photoelectric sensor on the side of the first screw rod, the slot-shaped photoelectric sensor can detect the positioning baffle in place. Then, the first chuck and the second chuck can be driven by the reduction motor to drive the connecting rotating plate from top to bottom through the limit rotating seat, so that the connecting rotating plate can drive the fixed rotating seat, the guide slide plate and the positioning device to move downward synchronously, and the positioning slot inside the alignment card seat is lowered to the center of the docking head. Then, the stepper motor can drive the ball slide seat and the plug-in card shaft to penetrate into the docking head through the second screw rod until the other side of the plug-in card shaft is plugged and limited with the inside of the alignment card seat; S5: For the durability test of the coating stopper, the reduction motor can drive the two sets of first chucks and second chucks to rotate through the transmission shaft cycle, and the first chuck and second chuck can drive the fixed swivel seat and six sets of guide slide plates and positioning device to move up and down through the limit swivel seat and the connecting plate cycle, and the positioning device can limit the position of the plug-in shaft and the docking head, and then cyclically pull the connecting arm to move up and down inside the stopper seat, thereby completing the first durability test; S6: Perform endurance fatigue test positioning on the reset spring. The fixed motor drives the two sets of fifth screws to rotate synchronously through the second synchronous pulley and the second synchronous belt. The fifth screw can synchronously drive the six sets of detection devices to lift through the threaded base. The fixed top plate inside the detection device can be limited to the front of the limit guide seat, the detection card can be limited to the rear of the limit baffle, and the detection baffle can be aligned to the front of the limit baffle, completing the positioning operation; S7: Perform a durability fatigue test on the reset spring. The positioning motor can synchronously drive the threaded slide and six groups of fixed supports to move forward through the sixth screw rod. The fixed supports can drive the limit baffle to move forward elastically through the detection card plate. Due to the continuous elastic force of the spring clamp ring, the detection card plate can continuously push the limit baffle under the action of the elastic force of the spring clamp ring. At this time, the two groups of proximity sensors located in the detection baffle in front of the limit baffle can detect and sense the displacement distance of the limit baffle, and then determine whether the reset spring meets the standard after the above-mentioned durability test through the displacement distance of the limit baffle.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can automatically position and limit the paint limiter when testing, which effectively improves the convenience of equipment testing. At the same time, when testing the internal reset spring of the paint limiter after the durability test, there is no need to disassemble it. By testing the elastic limit stroke of the limit baffle by the reset spring, the durability of the reset spring can be quickly and conveniently tested, which effectively improves the convenience of the equipment in testing the paint limiter and the reset spring.

[0018] 2. The limiter detection fixture of the present invention is internally provided with at least six groups of working positions for limiting the painting limiters. At the same time, the direction adjustment motor can synchronously drive the positioning card seat and six groups of plug-in slide shafts to move downward through the fourth screw rod, so that the positioning card seat can be limited to the inside of the limiter card seat through the plug-in slide shafts, which effectively improves the stability of the equipment in synchronously positioning and limiting multiple groups of painting limiters, thereby improving the stability of subsequent equipment in synchronously detecting and feeding multiple groups of painting limiters.

[0019] 3. The present invention adopts a rotation-type detection method, so that when the first chuck and the second chuck rotate, the connecting rotating plate, the fixed rotating seat and the six groups of positioning devices can be synchronously driven to move up and down through the limit rotating seat, so that the positioning device can synchronously perform cyclic durability tests on the six groups of painting limiters when moving up and down. The high-speed rotation durability test effectively improves the efficiency and automation of the equipment for durability testing of the painting limiters. At the same time, the limit rotating seat can move up and down inside the first chuck and the second chuck driven by the transmission motor and the third screw rod, so that the durability test stroke of the positioning device can be quickly and accurately adjusted, effectively improving the adaptability of the side-view equipment to durability testing of different types of painting limiters.

[0020] 4. When the present invention performs durability testing on the reset spring, the positioning motor can drive the threaded slide forward through the sixth screw rod, and the threaded slide can drive the detection card to elastically push the limit baffle through the fixed support. Under the continuous elastic force of the spring clamp, the detection card can push the limit baffle, so that the limit baffle rotates outward with the limiter card seat as the axis under the elastic traction of the reset spring, and then the lateral displacement distance of the limit baffle is detected by the preset proximity sensor, and then the durable elastic force of the reset spring is determined, which effectively improves the degree of automation and accuracy of the equipment in detecting the reset spring.

[0021] 5. When the present invention performs durability testing on the coating limiter and aligns the connection, the positioning slot can accurately position the outside of the docking joint, and at the same time, the stepper motor can drive the ball slide to move toward the docking joint through the second screw, so that the plug-in card shaft can pass through the docking joint to the inside of the alignment card seat, and then automatically and accurately complete the alignment connection of the coating limiter to be tested. At the same time, the rigid limitation of the plug-in card shaft and the docking joint also effectively improves the stability of the subsequent cyclic pulling durability test of the coating limiter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 A disassembled diagram of the main body of the present invention; Figure 2 It is a structural schematic diagram of the main body of the present invention; Figure 3 It is a partial enlarged view of location I of the present invention; Figure 4 It is a partial enlarged view of II of the present invention; Figure 5A side view of the main body of the present invention; Figure 6 It is a partial enlarged view of location III of the present invention; Figure 7 It is a structural schematic diagram of the coating stopper of the present invention; Figure 8 It is a structural schematic diagram of the durability detection device of the present invention; Fig. 9 is a side view of the durability detection device of the present invention; Fig.10 It is a disassembled diagram of the positioning device of the present invention; Fig.11 It is a structural schematic diagram of the positioning device of the present invention; Fig.12 is a disassembled diagram of the transmission device of the present invention; Fig.13 It is a structural schematic diagram of the transmission device of the present invention; Fig.14 This is a disassembled diagram of the limiter detection fixture of the present invention; Fig.15 It is a structural schematic diagram of the limiter detection fixture of the present invention; Fig.16 It is a disassembled diagram of the spring testing device of the present invention; Fig.17 It is a structural schematic diagram of a spring testing device of the present invention; Fig.18 It is a schematic diagram of the structure of the detection device of the present invention.

[0024] In the figure: 1-first synchronous pulley, 2-groove photoelectric sensor, 3-painting limiter, 4-durability detection device, 5-limiter detection fixture, 6-spring testing device, 7-support guide seat, 8-servo motor, 9-first synchronous belt, 10-first screw, 31-limiter card seat, 32-connecting arm, 33-limit baffle, 34-reset spring, 35-limit guide seat, 36-guide roller, 37-limiting card slot, 38-joint, 41-positioning card seat, 42-positioning device, 43-transmission device, 44-reduction motor, 45-support base, 46-connecting rotating plate, 47-guide slide plate, 48-fixed rotating seat, 49-transmission card shaft, 410-bearing seat, 421-connecting card sleeve, 422-positioning card slot, 423-alignment card seat, 424-guide slide groove, 425-second screw, 426-ball slide seat , 427-plug-in card shaft, 428-stepping motor, 431-third screw rod, 432-limiting rotating seat, 433-first chuck, 434-transmission motor, 435-second chuck, 51-fourth screw rod, 52-adjustment motor, 53-connecting cover plate, 54-positioning card seat, 55-plug-in sliding shaft, 56-thread guide seat, 57-alignment base, 58-positioning baffle, 61-positioning motor, 62-thread slide Seat, 63-detection device, 64-threaded base, 65-support card seat, 66-fifth screw rod, 67-second synchronous pulley, 68-fixed motor, 69-second synchronous belt, 610-sixth screw rod, 631-detection baffle, 632-proximity sensor, 633-seventh screw rod, 634-detection card plate, 635-fixed top plate, 636-micro motor, 637-fixed support, 638-spring retaining ring. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The present invention is further described below in conjunction with the accompanying drawings. Example

[0028] See also Figure 1-18 , an embodiment of the present invention provides: a durability test system for a coating stopper, comprising a support guide seat 7 for support, two groups of first synchronous pulleys 1 are rotatably clamped at the rear part of the inner end surface of the support guide seat 7, the two groups of first synchronous pulleys 1 are meshed and connected by a first synchronous belt 9, and the interiors of the two groups of first synchronous pulleys 1 are both provided with a first screw rod 10 for transmission, a servo motor 8 is arranged at the rear part of one group of the first synchronous pulleys 1, the inner end surface of the support guide seat 7 is threadedly connected to a stopper detection fixture 5 through the first screw rod 10, and at least six groups of coating stoppers 3 are fixedly clamped at the inner end surface of the stopper detection fixture 5 at equal distances, the stopper detection fixture 5 can perform a conveying operation on the coating stopper 3, so as to facilitate the subsequent durability detection device 4 and the spring test device 6 to perform step-by-step detection operations on the internal coating stopper 3, thereby improving the accuracy and efficiency of subsequent detection, The durability detection device 4 is fixedly arranged on the upper end surface of the support guide seat 7 near the front; A spring testing device 6, which is fixedly arranged on the lower end surface of the support guide seat 7 near the rear; Slot-type photoelectric sensors 2, there are two groups of slot-type photoelectric sensors 2, the two groups of slot-type photoelectric sensors 2 are respectively arranged on the two sides of the support guide seat 7, the two slot-type photoelectric sensors 2 located at the front are opposite to the center of the durability detection device 4, and the two slot-type photoelectric sensors 2 located at the rear are opposite to the center of the spring testing device 6, the two groups of slot-type photoelectric sensors 2 can respectively align the durability detection device 4 and the spring testing device 6, which is convenient for the subsequent real-time detection of the limiter detection fixture 5 in the path, and then it is convenient for the subsequent limiter detection fixture 5 to be moved to the durability detection device 4 and the spring testing device 6 for detection and positioning, thereby improving the accuracy of the subsequent detection of the coating limiter 3.

[0029] like Figure 7The coating stopper 3 includes a stopper holder 31 for support and positioning. Two groups of positioning holes are arranged inside the stopper holder 31. The positioning holes can be docked and positioned with the plug-in sliding shaft 55, which is convenient for the subsequent coating stopper 3 to be loaded into the positioning base 57. The positioning accuracy is ensured. A limiting guide seat 35 is arranged near the rear of the lower end surface of the stopper holder 31, and a limiting baffle plate 33 is hinged near the front of the lower end surface of the stopper holder 31. The limiting guide seat 35 and the limiter holder 31 are welded as one piece. At the same time, the limiting baffle plate 33 is hinged through the welding swivel at the bottom of the limiter holder 31, which is convenient for the subsequent guide roller 36 to have sufficient space displacement between the limiting baffle plate 33 and the limiting guide seat 35. Two sets of limit slots 37 for limiting are provided on the inner end surface of the limit baffle 33. The limit slots 37 at the front are the limit distances for limiting the guide roller 36, and the limit slots 37 at the rear are the initial distances for limiting the guide roller 36. The limit baffle 33 and the limit guide seat 35 are elastically fixedly connected by a return spring 34, and a guide roller 36 is elastically fixedly connected between the limit baffle 33 and the limit guide seat 35 by a limit slot 37. A connecting arm 32 is fixedly arranged at the center of the upper end surface of the guide roller 36, and a docking joint 38 is arranged at the end of the connecting arm 32. The return spring 34 is used to tighten the limit baffle 33 to ensure that the limit slot 37 elastically presses the guide roller 36 to limit the stability of the support limit of the connecting arm 32.

[0030] like Figure 8 and Fig. 9 The durability detection device 4 includes a support base 45 for support, a positioning card seat 41 is fixedly arranged on the upper end surface of the support base 45, three groups of bearing seats 410 are equidistantly arranged at the top of the inner end surface of the positioning card seat 41, and a transmission card shaft 49 is rotatably connected to the inner end surface of the three groups of bearing seats 410, and two groups of transmission devices 43 for detection are arranged on the outer end surface of the transmission card shaft 49, and the lower end surfaces of the two groups of transmission devices 43 are hinged with a fixed rotating seat 48 through a connecting rotating plate 46, and six groups of guide slides 47 are equidistantly fixed on the lower end surface of the fixed rotating seat 48, and the guide slides 47 are arranged on the inner end surface of the guide slides 47. A positioning device 42 is fixedly arranged at the center of the lower end surface, and a reduction motor 44 is arranged at the side end surface of the positioning base 41 opposite to the transmission card shaft 49. When the painting limiter 3 is detected, the reduction motor 44 can synchronously drive the two sets of transmission devices 43 to rotate through the transmission card shaft 49. The two sets of transmission devices 43 can cyclically pull the guide slide plate 47 and the positioning device 42 up and down through the connecting rotating plate 46, thereby cyclically pulling the docking joint 38 and the connecting arm 32 limited by the positioning device 42, and then detecting the painting limiter 3, thereby improving the efficiency of detecting the painting limiter 3.

[0031] like Fig.10 and Fig.11 The positioning device 42 includes an alignment card seat 423, and a connecting card sleeve 421 for connection is fixedly provided on the upper end surface of the alignment card seat 423. The connecting card sleeve 421 is a waist-shaped hole, which can facilitate the subsequent fixing of the connecting piece, and then facilitate the subsequent connection card sleeve 421 and the connection rotating plate 46. A positioning slot 422 is provided at the center of the lower end surface of the alignment card seat 423, and a guide slot 424 is provided at the center of the side wall of the positioning slot 422. The guide slot 424 can provide a sufficient guide basis for the ball slide 426 to improve the stability of the displacement of the ball slide 426 inside the alignment card seat 423. A stepper motor 428 is provided near the upper part of the side end surface of the alignment card seat 423, and a first stepper motor 428 is fixedly provided at the output end of the stepper motor 428. The second screw rod 425 and the inner end surface of the guide slot 424 are slidably connected with a ball slide seat 426, and a plug-in card shaft 427 is arranged at the bottom of the inner end surface of the ball slide seat 426. The inner end surface of the alignment card seat 423 is threadedly connected with the ball slide seat 426 through the second screw rod 425. A fixing hole is arranged directly opposite to the guide slot 424, and the fixing hole is used for limiting the position of the plug-in card shaft 427, which can improve the stability of the plug-in card shaft 427 limiting the position of the joint 38; like Fig.12 and Fig.13 The transmission device 43 includes a limiting rotating seat 432 for limiting, one end of the limiting rotating seat 432 is slidably clamped with a first chuck 433, and the other end of the limiting rotating seat 432 is slidably clamped with a second chuck 435, a transmission motor 434 is arranged at the top of the inner end surface of the first chuck 433, and a third screw rod 431 threadedly connected to the limiting rotating seat 432 is arranged at the output end of the transmission motor 434, and the transmission motor 434 can adjust the distance between the limiting rotating seat 432 and the center of the first chuck 433 through the third screw rod 431, so as to facilitate the subsequent first chuck 433 and the second chuck 435 to adjust the rotation diameter of the limiting rotating seat 432 when performing circular rotation, and then adjust the limiting rotating seat 432 to drive the positioning device 42 and the coating limiter 3 to test the stroke.

[0032] like Fig.14 and Fig.15 The stopper detection fixture 5 includes a positioning base 57 for guiding, and a threaded guide seat 56 is symmetrically arranged on the side end surface of the positioning base 57, and a positioning baffle 58 is fixedly arranged at the center of the side end surface of the threaded guide seat 56. The positioning baffle 58 can cooperate with the groove-type photoelectric sensor 2 to perform real-time detection of the position of the conveyed stopper detection fixture 5 and the coating stopper 3, thereby facilitating the subsequent positioning of the durability detection device 4 and the spring test device 6 for processing the coating stopper 3; A connecting cover plate 53 is provided on the upper end surface of the alignment base 57, and a steering motor 52 is fixedly provided at the center of the upper end surface of the connecting cover plate 53, and a fourth screw rod 51 is fixedly provided at the output end of the steering motor 52. The inner end surface of the alignment base 57 is connected to a positioning card seat 54 through a threaded sliding connection of the fourth screw rod 51, and at least six groups of plug-in slide shafts 55 are equidistantly provided on the lower end surface of the positioning card seat 54. When limiting the coating limiter 3 after loading, the adjustment motor 52 can be threadedly connected with the positioning card seat 54 through the fourth screw rod 51, thereby driving multiple groups of plug-in slide shafts 55 to be plugged and limited to the positioning hole inside the limiter card seat 31, and at the same time, the positioning card seat 54 can be synchronously pressed on the upper part of the limiter card seat 31 to improve the stability of the limit.

[0033] like Fig.16 and Fig.17 The spring testing device 6 includes a supporting base 65 for support. The lower end surface of the supporting base 65 is rotatably connected with two sets of second synchronous pulleys 67, and the two sets of second synchronous pulleys 67 are meshed and connected through a second synchronous belt 69. A fixed motor 68 is arranged at the lower end surface of the supporting base 65 opposite to the second synchronous pulley 67. The insides of the two sets of second synchronous pulleys 67 are both provided with a fifth screw rod 66. The inner end surface of the supporting base 65 is threadedly connected with a threaded base 64 through two sets of fifth screw rods 66. The fixed motor 68 can drive the threaded base 64 to move up and down inside the supporting base 65 through the fifth screw rod 66, so as to facilitate the subsequent detection device 63 to reach the inside of the coating limiter 3, thereby improving the convenience and accuracy of testing the reset spring 34. A positioning motor 61 is fixedly arranged at the center of the front end face of the threaded base 64, a sixth screw rod 610 is fixedly arranged at the output end of the positioning motor 61, the inner end face of the threaded base 64 is threadedly connected to the threaded slide 62 through the sixth screw rod 610, and six groups of detection devices 63 are equidistantly arranged on the upper end face of the threaded slide 62. The positioning motor 61 can drive the threaded slide 62 to perform threaded displacement through the sixth screw rod 610, so that the threaded slide 62 can synchronously drive the six groups of detection devices 63 to synchronously move the limit baffle 33, and then perform tension pulling detection on the reset spring 34, thereby improving the stability of the equipment in synchronously detecting multiple groups of reset springs 34.

[0034] like Fig.18The detection device 63 includes a fixed support 637, and two groups of fixed top plates 635 for alignment are arranged near the rear of the upper end surface of the fixed support 637, and two groups of detection card plates 634 are slidably connected to the fixed top plates 635 at the inner end surface of the fixed support 637, and a spring clamp ring 638 is arranged at the bottom of the inner end surface of the detection card plate 634. A micro motor 636 is arranged at the center of the rear end surface of the fixed support 637, and a seventh screw rod 633 is fixedly arranged at the output end of the micro motor 636, and a detection baffle 631 is slidably connected to the inner end surface of the fixed support 637 through the seventh screw rod 633. Two groups of proximity sensors 632 are arranged near the top of the inner end surface of the detection baffle 631. When the limit baffle 33 is detected for displacement, the reset spring 34 can elastically limit the limit baffle 33 by elastic expansion and contraction. After the reset spring 34 has undergone the first multiple groups of endurance tests, if the elastic force of the reset spring 34 is irreversibly deformed, then under the push of the detection card plate 634, the displacement spacing of the limit baffle 33 is greater than the preset spacing of the limit baffle 33. Then the preset proximity sensor 632 can detect the limit baffle 33, thereby improving the accuracy of multiple groups of detection of the reset spring 34.

[0035] The plug-in card shaft 427 is adapted to the docking joint 38, and the ball bearing slide 426 is adapted to the docking joint 38 through the plug-in card shaft 427 and then fixedly connected with the connecting arm 32. When the docking joint 38 is aligned, the positioning card groove 422 inside the alignment card seat 423 can first be aligned with the docking joint 38. When the plug-in card shaft 427 is aligned with the docking joint 38, the stepping motor 428 can drive the ball bearing slide 426 and the plug-in card shaft 427 to engage and limit the docking joint 38 through the second screw rod 425, which is convenient for subsequent cycle durability detection and pulling; The positioning card seat 54 is fixedly connected with the inside of the limiter card seat 31 by inserting the sliding shaft 55. The positioning card seat 54 can be inserted into the inside of the limiter card seat 31 through the inserting sliding shaft 55. At the same time, the positioning card seat 54 can be pressed onto the upper part of the limiter card seat 31 at the same time. The double positioning and limiting operations can improve the stability of the coating limiter 3 when detecting the limit.

[0036] The upper end of the connecting rotating plate 46 is rotatably connected to the limit rotating seat 432, and the lower end of the connecting rotating plate 46 is rotatably connected to the fixed rotating seat 48. The connecting rotating plate 46 can provide sufficient rotation limit space for the up and down displacement of the fixed rotating seat 48, thereby improving the stability of the sliding displacement of the guide slide 47 inside the support base 45. The transmission device 43 drives the guide slide 47 to slide up and down inside the support base 45 through the connecting rotating plate 46. The guide slide 47 can move up and down at equal intervals under the cyclic drive of the connecting rotating plate 46, so as to facilitate the subsequent positioning device 42 to drive the guide roller 36 to cyclically limit the two limit slots 37 through the docking joint 38, and perform cyclic detection on the durability of the coating limiter 3.

[0037] The limiter detection fixture 5 is adapted to the first screw rod 10 through the threaded guide seat 56 and then slidably clamped on the inner end surface of the support guide seat 7, and the positioning baffle 58 is directly opposite to the inside of the slot-type photoelectric sensor 2. The two groups of slot-type photoelectric sensors 2 can position the limiter detection fixture 5 of the conveying displacement through the positioning baffle 58, thereby improving the accuracy of the subsequent durability detection device 4 and the spring testing device 6 in positioning the coating limiter 3. The detection card plate 634 and the fixed top plate 635 are slidably inserted between the limit baffle 33 and the limit guide seat 35. When the reset spring 34 is detected, the fixed top plate 635 and the detection card plate 634 can be inserted between the limit guide seat 35 and the limit baffle 33, so that when the detection card plate 634 moves forward, the spring retaining ring 638 can provide sufficient elastic force for the guidance of the detection card plate 634, thereby facilitating the pushing of the limit baffle 33 to detect the durable elastic force and extension stroke of the reset spring 34.

[0038] A testing method for a coating stopper durability testing system comprises the following steps: S1: Pre-loading, the staff can operate the external loading module to align the six sets of coating stoppers 3 to the upper inner part of the alignment base 57 through the stopper holder 31, and the stopper holder 31 can be aligned to the rear wall of the inner end surface of the alignment base 57 to complete the pre-loading; S2: Feeding and conveying limit, the direction adjustment motor 52 can drive the fourth screw rod 51 at the bottom to rotate, and the fourth screw rod 51 can drive the positioning card seat 54 to move downward by thread, and the positioning card seat 54 can be directly plugged into the inside of the limiter card seat 31 through multiple sets of plug-in slide shafts 55. At the same time, the positioning card seat 54 can be pressed and limited at the top of the limiter card seat 31 for a second time, so that the limiter card seat 31 can be stably pressed on the upper part of the alignment base 57, thereby completing the feeding limit of the coating limiter 3; S3: conveying and loading, the staff can start the servo motor 8, the servo motor 8 can synchronously drive the two sets of first screw rods 10 to rotate through the first synchronous pulley 1 and the first synchronous belt 9, and the two sets of first screw rods 10 can be connected with the threaded guide seat 56 through the threads, thereby synchronously driving the alignment base 57 and the multiple sets of coating stoppers 3 inside it to move toward the direction of the durability detection device 4; S4: Alignment and connection. When the alignment base 57 is driven by the first screw rod 10 to move to the slot-shaped photoelectric sensor 2 on the side of the first screw rod 10, the slot-shaped photoelectric sensor 2 can detect the position of the positioning baffle 58. Then, the first chuck 433 and the second chuck 435 can be driven by the reduction motor 44 to drive the connecting rotating plate 46 to start moving from top to bottom through the limiting rotating seat 432, so that the connecting rotating plate 46 can drive the fixed rotating seat 48, the guide slide plate 47 and the positioning device 42 to move downward synchronously, and the positioning slot 422 inside the alignment seat 423 is lowered to the center of the docking head 38. Then, the stepping motor 428 can drive the ball slide 426 and the plug-in shaft 427 to penetrate into the docking head 38 through the second screw rod 425 until the other side of the plug-in shaft 427 is plugged and limited with the alignment seat 423. S5: Durability test of the coating stopper 3, the reduction motor 44 can cyclically drive the two groups of first chucks 433 and second chucks 435 to rotate through the transmission card shaft 49, and the first chuck 433 and second chuck 435 can cyclically drive the fixed rotating seat 48 and six groups of guide slides 47 and the positioning device 42 to move up and down through the limiting rotating seat 432 and the connecting rotating plate 46, and the positioning device 42 can limit the position of the plug-in card shaft 427 and the docking head 38, and then cyclically pull the connecting arm 32 to move up and down inside the stopper card seat 31, thereby completing the first durability test; S6: Perform a durable fatigue test on the reset spring 34, the fixed motor 68 synchronously drives the two sets of fifth screw rods 66 to rotate through the second synchronous pulley 67 and the second synchronous belt 69, the fifth screw rod 66 can synchronously drive the six sets of detection devices 63 to lift through the threaded base 64, the fixed top plate 635 inside the detection device 63 can be limited to the front of the limit guide seat 35, the detection card plate 634 can be limited to the rear of the limit baffle 33, and the detection baffle 631 can be aligned to the front of the limit baffle 33, completing the positioning operation; S7: Perform a durability fatigue test on the reset spring 34. The positioning motor 61 can synchronously drive the threaded slide 62 and the six groups of fixed supports 637 to move forward through the sixth screw rod 610. The fixed supports 637 can drive the limit baffle 33 to move forward elastically through the detection card plate 634. Due to the continuous elastic force of the spring retaining ring 638, the detection card plate 634 can continuously push the limit baffle 33 under the action of the elastic force of the spring retaining ring 638. At this time, the two groups of proximity sensors 632 located in the detection baffle 631 in front of the limit baffle 33 can detect and sense the displacement distance of the limit baffle 33, and then determine whether the reset spring 34 meets the standards after the above-mentioned durability test through the displacement distance of the limit baffle 33.

[0039] Working principle: Before use, Figure 1 , Figure 7 and Fig.14 In the initial state, the stopper detection fixture 5 is located at the front of the opening of the support guide seat 7, and the positioning card seat 54 is moved to the bottom of the connecting cover plate 53 under the drive of the fourth screw rod 51, so that there is enough space between the positioning card seat 54 and the alignment base 57 to facilitate the subsequent external feeding module to position the coating stopper 3 to be detected. When multiple groups of coating stoppers 3 are synchronously fed, such as Figure 2 , Figure 7 and Fig.14 At this time, the external feeding module can align the six groups of coating stoppers 3 to the upper interior of the alignment base 57 through the stopper holder 31. At this time, the stopper holder 31 can be aligned to the rear wall of the inner end surface of the alignment base 57, and the adjustment motor 52 is started at the same time. The adjustment motor 52 can drive the fourth screw rod 51 at the bottom to rotate. When the fourth screw rod 51 rotates, it can drive the positioning holder 54 to move downward by thread, so that the positioning holder 54 can be directly plugged into the inside of the stopper holder 31 through multiple groups of plug-in slide shafts 55, so that the stopper holder 31 can be stably pressed on the upper part of the alignment base 57, thereby completing the feeding limit of the coating stopper 3. Figure 1 , Fig.14 and Fig.15 When testing and loading the multiple sets of coating stoppers 3 that have been pressed and positioned, the staff can start the servo motor 8. At this time, the servo motor 8 can synchronously drive the two sets of first screws 10 to rotate through the first synchronous pulley 1 and the first synchronous belt 9. The two sets of first screws 10 can be connected with the threaded guide seat 56 through threads, thereby synchronously driving the alignment base 57 and the multiple sets of coating stoppers 3 inside it to move toward the direction of the durability detection device 4, and then start the test loading operation of the coating stoppers 3, such as Figure 2 and Figure 4When the alignment base 57 is driven by the first screw rod 10 and moves to the slot-type photoelectric sensor 2 on the side of the first screw rod 10, the slot-type photoelectric sensor 2 can detect the positioning baffle 58 in place, and then the slot-type photoelectric sensor 2 can turn off the conveying transmission of the servo motor 8 and synchronously start the reduction motor 44 to perform the alignment connection before the durability test, as shown in FIG. Figure 7 , Figure 8 and Fig.10 When the coating stopper 3 is aligned and connected, the reduction motor 44 can drive the transmission card shaft 49 to rotate, and the transmission card shaft 49 can synchronously drive the first chuck 433 and the second chuck 435 to rotate in a circle. At this time, the first chuck 433 and the second chuck 435 can drive the connecting rotating plate 46 to start moving from top to bottom through the limiting rotating seat 432, so that the connecting rotating plate 46 can drive the fixed rotating seat 48, the guide slide plate 47 and the positioning device 42 to move downward synchronously. As the positioning device 42 moves downward, Fig.10 and Fig.11 At this time, the positioning slot 422 inside the alignment card seat 423 drops to the center of the docking head 38, and then the stepper motor 428 is started. The stepper motor 428 can drive the ball slide 426 to move toward the docking head 38 inside the alignment card seat 423 through the second screw rod 425. At this time, the ball slide 426 can pass through the plug-in card shaft 427 to the inside of the docking head 38 until the other side of the plug-in card shaft 427 is plugged and limited with the inside of the alignment card seat 423. At this time, the test connection positioning of the coating limiter 3 is completed. After the alignment is completed, when the coating limiter 3 is subjected to a durability test, the reduction motor 44 can cyclically drive the two groups of first chucks 433 and second chucks 435 to rotate through the transmission card shaft 49, and the two groups of first chucks 433 and second chucks 435 cyclically drive the fixed swivel seat 48 through the limiting swivel seat 432 and the connecting swivel plate 46. The six groups of guide slides 47 and the positioning device 42 move up and down. At this time, the positioning device 42 can limit the position of the plug-in card shaft 427 and the docking joint 38, and then cyclically pull the connecting arm 32 to move up and down inside the limiter holder 31. Two groups of limit slots 37 are arranged inside the limit baffle 33, one group corresponds to the initial position, and the other group corresponds to the maximum limit. Under the traction of the plug-in card shaft 427, the docking joint 38 can drive the guide roller 36 to cyclically align and limit the two groups of limit slots 37 through the connecting arm 32. At this time, the reset spring 34 can provide sufficient elastic force for the limit baffle 33 to limit the guide roller 36. With the cyclic up and down displacement of the cyclic connecting arm 32, the equipment can quickly and conveniently test the durability of the coating limiter 3. When the above-mentioned guide roller 36 has circulated a predetermined number of times between the two groups of limit slots 37, at this time, Fig.10The stepper motor 428 can drive the ball slide 426 and the plug-in card shaft 427 to reset through the second screw rod 425, thereby releasing the limit of the butt joint 38. At the same time, the reduction motor 44 can synchronously drive the six groups of positioning devices 42 to lift and reset, providing a conveying space for the subsequent coating limiter 3 and then the secondary detection, such as Figure 5 , Figure 6 , Fig.16 and Fig.17 After the last multiple groups of endurance tests, when the elastic force of the reset spring 34 inside the coating stopper 3 is tested, the servo motor 8 can continue to drive the stopper detection fixture 5 to move inward through the first screw rod 10 until the positioning baffle 58 inside the stopper detection fixture 5 is positioned at the slot-shaped photoelectric sensor 2 at the rear. At this time, the stopper detection fixture 5 drives the six groups of coating stoppers 3 to be positioned just above the spring testing device 6, and then the first screw rod 10 is closed, and the fixed motor 68 is started at the same time. Fig.17 In the initial state, the threaded base 64 is located at the bottom of the support base 65 to prevent the bottom margin of the coating stopper 3 from being insufficient, thereby causing limitation with the threaded base 64. When detecting the reset spring 34 inside the coating stopper 3, the fixed motor 68 can synchronously drive the two sets of fifth screw rods 66 to rotate through the second synchronous pulley 67 and the second synchronous belt 69, and the two sets of fifth screw rods 66 can synchronously drive the six sets of detection devices 63 to be lifted through the threaded base 64. Figure 5 , Figure 6 and Fig.18As the detection device 63 is lifted, the fixed top plate 635 inside the detection device 63 can be limited to the front of the limit guide seat 35, the detection card plate 634 can be limited to the rear of the limit baffle 33, and at the same time the detection baffle 631 can be aligned to the front of the limit baffle 33, so that the detection card plate 634 and the detection baffle 631 can clamp the limit baffle 33 stroke. When the reset spring 34 is detected, the positioning motor 61 can drive the sixth screw rod 610 to rotate, so that the sixth screw rod 610 can synchronously drive the six groups of fixed supports 637 to move forward through the threaded slide 62. At this time, the fixed support 637 can drive the limit baffle 33 to move forward with elastic pressure through the detection card plate 634. Since the limit baffle 33 and the reset spring 34 are kept fixed, the limit baffle 33 is fixed to the reset spring 34 and the limit baffle 33. The positioner holder 31 is elastically hinged, and when the limit baffle 33 is pushed by the detection card plate 634, it can move forward synchronously. At this time, the detection card plate 634 is subjected to the continuous elastic force of the spring clamp ring 638, so that the detection card plate 634 can continuously push the limit baffle 33 under the action of the elastic force of the spring clamp ring 638. If the elastic force of the limit baffle 33 is damaged in the first durability test, the restraining force of the reset spring 34 on the limit baffle 33 is reduced, so that the pushing distance of the limit baffle 33 to the front is increased. At this time, the two groups of proximity sensors 632 located in the detection baffle 631 in front of the limit baffle 33 can detect and sense the limit baffle 33 with an increased spacing, and the detection of this group of coating limiters 3 and reset springs 34 is unqualified, thereby completing the durability detection operation of the coating limiter 3.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coating stopper durability test system, comprising a support guide seat (7) for supporting, two groups of first synchronous pulleys (1) are rotatably clamped at the rear of the inner end surface of the support guide seat (7), the two groups of the first synchronous pulleys (1) are meshedly connected via a first synchronous belt (9), and the insides of the two groups of the first synchronous pulleys (1) are both provided with a first screw rod (10) for transmission, a servo motor (8) is provided at the rear of one of the groups of the first synchronous pulleys (1), the inner end surface of the support guide seat (7) is threadedly connected to a stopper detection fixture (5) via the first screw rod (10), and at least six groups of coating stoppers (3) are fixedly clamped at equal distances at the inner end surface of the stopper detection fixture (5); The coating stopper (3) comprises a stopper holder (31) for supporting and positioning, a limit guide seat (35) is arranged near the rear of the lower end surface of the stopper holder (31), and a limit baffle (33) is hinged near the front of the lower end surface of the stopper holder (31), two groups of limit slots (37) for limiting are arranged on the inner end surface of the limit baffle (33), the limit baffle (33) and the limit guide seat (35) are elastically fixedly connected via a return spring (34), and a guide roller (36) is elastically fixedly connected between the limit baffle (33) and the limit guide seat (35) via the limit slot (37), a connecting arm (32) is fixedly arranged at the center of the upper end surface of the guide roller (36), and a docking joint (38) is arranged at the end of the connecting arm (32); Features: A durability detection device (4), the durability detection device (4) being fixedly arranged on the upper end surface of the support guide seat (7) near the front; A spring testing device (6), the spring testing device (6) being fixedly arranged on a lower end surface of the support guide seat (7) near the rear; A slot-shaped photoelectric sensor (2), wherein the slot-shaped photoelectric sensor (2) is provided with two groups, and the two groups of the slot-shaped photoelectric sensors (2) are respectively arranged on two side surfaces of the support guide seat (7), the two slot-shaped photoelectric sensors (2) located at the front are directly opposite to the center of the durability detection device (4), and the two slot-shaped photoelectric sensors (2) located at the rear are directly opposite to the center of the spring test device (6); The servo motor (8) synchronously drives the two sets of first screw rods (10) to rotate via the first synchronous pulley (1) and the first synchronous belt (9). The two sets of first screw rods (10) synchronously drive the limiter detection fixture (5) and the coating limiter (3) to be positioned one after the other at the two sets of slot-type photoelectric sensors (2). When the limiter detection fixture (5) is positioned at the front slot-type photoelectric sensor (2), the durability detection device (4) can cyclically pull the guide roller (36) between the two sets of limiter slots (37) through the docking joint (38). When the limiter detection fixture (5) is positioned at the rear slot-type photoelectric sensor (2), the spring testing device (6) can cyclically test the reset spring (34) through elastic spacing detection.

2. A coating stopper durability test system according to claim 1, characterized in that: The durability detection device (4) comprises a support base (45) for support, a positioning card seat (41) is fixedly arranged on the upper end surface of the support base (45), three groups of bearing seats (410) are equidistantly arranged at the top of the inner end surface of the positioning card seat (41), a transmission card shaft (49) is rotatably clamped on the inner end surface of the three groups of bearing seats (410), and two groups of transmission devices (43) for detection are arranged on the outer end surface of the transmission card shaft (49), the lower end surfaces of the two groups of transmission devices (43) are hinged to a fixed rotating seat (48) through a connecting rotating plate (46), and six groups of guide slides (47) are equidistantly fixed on the lower end surface of the fixed rotating seat (48), a positioning device (42) is fixedly arranged at the center of the lower end surface of the guide slide (47), and a reduction motor (44) is arranged on the side end surface of the positioning card seat (41) directly opposite to the transmission card shaft (49).

3. A coating stopper durability test system according to claim 2, characterized in that: The positioning device (42) comprises an alignment card seat (423), the upper end surface of the alignment card seat (423) is fixedly provided with a connecting card sleeve (421) for connection, and a positioning card slot (422) is provided at the center of the lower end surface of the alignment card seat (423), and a guide slot (424) is provided at the center of the side wall of the positioning card slot (422), a stepping motor (428) is provided near the upper part of the side end surface of the alignment card seat (423), and a second screw rod (425) is fixedly provided at the output end of the stepping motor (428), the inner end surface of the guide slot (424) is slidably engaged with a ball slide seat (426), and a plug-in card shaft (427) is provided at the bottom of the inner end surface of the ball slide seat (426), and the inner end surface of the alignment card seat (423) is threadedly connected to the ball slide seat (426) through the second screw rod (425); The transmission device (43) comprises a limiting rotating seat (432) for limiting position, a first chuck (433) being slidably engaged at one end of the limiting rotating seat (432), and a second chuck (435) being slidably engaged at the other end of the limiting rotating seat (432), a transmission motor (434) being arranged at the top of the inner end surface of the first chuck (433), and a third screw rod (431) being threadedly connected to the limiting rotating seat (432) being arranged at the output end of the transmission motor (434).

4. A coating stopper durability test system according to claim 3, characterized in that: The limiter detection fixture (5) comprises a positioning base (57) for guiding, a side end surface of the positioning base (57) is symmetrically provided with a threaded guide seat (56), and a positioning baffle (58) is fixedly provided at the center of the side end surface of the threaded guide seat (56), and the positioning baffle (58) can cooperate with the slot-type photoelectric sensor (2), a connecting cover plate (53) is provided on the upper end surface of the positioning base (57), and a steering motor (52) is fixedly provided at the center of the upper end surface of the connecting cover plate (53), and a fourth screw rod (51) is fixedly provided at the output end of the steering motor (52), the inner end surface of the positioning base (57) is threadedly slidably connected to a positioning card seat (54) through the fourth screw rod (51), and at least six groups of plug-in sliding shafts (55) are equidistantly provided on the lower end surface of the positioning card seat (54).

5. A coating stopper durability testing system according to claim 4, characterized in that: The spring testing device (6) comprises a supporting base (65) for supporting, the lower end surface of the supporting base (65) is rotatably engaged with two sets of second synchronous belt pulleys (67), and the two sets of second synchronous belt pulleys (67) are meshedly connected via a second synchronous belt (69), a fixed motor (68) is arranged at the lower end surface of the supporting base (65) directly opposite to the second synchronous belt pulley (67), and a fifth screw rod (66) is arranged inside the two sets of second synchronous belt pulleys (67), and the supporting base ( The inner end surface of the threaded base (65) is threadedly connected to the threaded base (64) through two groups of the fifth screw rods (66), and a positioning motor (61) is fixedly arranged at the center of the front end surface of the threaded base (64), and a sixth screw rod (610) is fixedly arranged at the output end of the positioning motor (61), the inner end surface of the threaded base (64) is threadedly connected to the threaded slide (62) through the sixth screw rod (610), and six groups of detection devices (63) are equidistantly arranged on the upper end surface of the threaded slide (62).

6. A coating stopper durability testing system according to claim 5, characterized in that: The detection device (63) comprises a fixed support (637), two groups of fixed top plates (635) for alignment are arranged near the rear of the upper end surface of the fixed support (637), and two groups of detection card plates (634) are slidably engaged at the inner end surface of the fixed support (637) opposite to the fixed top plate (635), a spring clamp ring (638) is arranged at the bottom of the inner end surface of the detection card plate (634), a micro motor (636) is arranged at the center of the rear end surface of the fixed support (637), a seventh screw rod (633) is fixedly arranged at the output end of the micro motor (636), and a detection baffle (631) is threadedly connected to the inner end surface of the fixed support (637) through the seventh screw rod (633), and two groups of proximity sensors (632) are arranged near the top of the inner end surface of the detection baffle (631).

7. A coating stopper durability testing system according to claim 6, characterized in that: The plug-in card shaft (427) is matched with the docking head (38), and the ball sliding seat (426) is matched with the docking head (38) through the plug-in card shaft (427) and is fixedly connected with the connecting arm (32), and the positioning card seat (54) is fixedly connected with the inside of the limiter card seat (31) through the plug-in sliding shaft (55).

8. A coating stopper durability testing system according to claim 6, characterized in that: The upper end of the connecting rotating plate (46) is rotationally engaged with the limiting rotating seat (432), and the lower end of the connecting rotating plate (46) is rotationally engaged with the fixed rotating seat (48), and the transmission device (43) drives the guide slide plate (47) to slide up and down inside the support base (45) through the connecting rotating plate (46).

9. A coating stopper durability testing system according to claim 6, characterized in that: The limiter detection fixture (5) is adapted to the first screw rod (10) through the threaded guide seat (56) and then slidably clamped on the inner end surface of the support guide seat (7), and the positioning baffle (58) is directly opposite to the inside of the slot-type photoelectric sensor (2), and the detection clamping plate (634) and the fixed top plate (635) are slidably inserted between the limit baffle (33) and the limit guide seat (35).

10. The testing method of the coating stopper durability testing system according to claim 9, characterized in that: The following steps are involved: S1: Pre-loading, the staff can operate the external loading module to align the six sets of coating stoppers (3) to the upper inner part of the alignment base (57) through the stopper holder (31), and the stopper holder (31) can be aligned to the rear wall of the inner end surface of the alignment base (57), thereby completing the pre-loading; S2: Feeding and conveying limit, the direction adjustment motor (52) can drive the fourth screw rod (51) at the bottom to rotate, and the fourth screw rod (51) can drive the positioning clamp (54) to move downward by thread, and the positioning clamp (54) can be directly plugged into the inside of the limiter clamp (31) through multiple sets of plug-in slide shafts (55), and at the same time, the positioning clamp (54) can be pressed and limited at the top of the limiter clamp (31) for a second time, so that the limiter clamp (31) is stably pressed and limited on the upper part of the alignment base (57), thereby completing the feeding limit of the coating limiter (3); S3: conveying and loading materials, the staff can start the servo motor (8), and the servo motor (8) can synchronously drive the two sets of first screw rods (10) to rotate through the first synchronous pulley (1) and the first synchronous belt (9), and the two sets of first screw rods (10) can be connected to the threaded guide seat (56) through threads, thereby synchronously driving the alignment base (57) and the multiple sets of coating limiters (3) therein to move toward the direction of the durability detection device (4); S4: Alignment and connection. When the alignment base (57) is driven by the first screw rod (10) to move to the slot-shaped photoelectric sensor (2) on the side of the first screw rod (10), the slot-shaped photoelectric sensor (2) can detect the position of the positioning baffle (58). Then, the first chuck (433) and the second chuck (435) can be driven by the reduction motor (44) to drive the connecting rotating plate (46) to start moving from top to bottom through the limit rotating seat (432), thereby making the connecting rotating plate (46) ) can drive the fixed rotating seat (48), the guide slide plate (47) and the positioning device (42) to move downward synchronously, and the positioning slot (422) inside the alignment card seat (423) is lowered to align to the center of the docking head (38), and then the stepping motor (428) can drive the ball slide seat (426) and the plug-in card shaft (427) to pass through the inside of the docking head (38) through the second screw rod (425) until the other side of the plug-in card shaft (427) is plugged and limited with the inside of the alignment card seat (423); S5: For the durability test of the coating stopper (3), the reduction motor (44) can cyclically drive the two groups of first chucks (433) and second chucks (435) to rotate through the transmission clamp shaft (49), and the first chuck (433) and the second chuck (435) can cyclically drive the fixed rotating seat (48) and the six groups of guide slides (47) and the positioning device (42) to move up and down through the limiting rotating seat (432) and the connecting rotating plate (46), and the positioning device (42) can be limited by the plug-in clamp shaft (427) and the docking head (38), and then cyclically pull the connecting arm (32) to move up and down inside the stopper clamp seat (31), thereby completing the first durability test; S6: The reset spring (34) is positioned for endurance fatigue testing. The fixed motor (68) drives the two sets of fifth screw rods (66) to rotate synchronously through the second synchronous pulley (67) and the second synchronous belt (69). The fifth screw rods (66) can synchronously drive the six sets of detection devices (63) to be lifted through the threaded base (64). The fixed top plate (635) inside the detection device (63) can be limited to the front of the limit guide seat (35). The detection card plate (634) can be limited to the rear of the limit baffle (33). The detection baffle (631) can be aligned to the front of the limit baffle (33), and the positioning operation is completed. S7: Performing a durability fatigue test on the reset spring (34), wherein the positioning motor (61) can synchronously drive the threaded slide (62) and the six groups of fixed supports (637) to move forward through the sixth screw rod (610), and the fixed supports (637) can drive the limit baffle (33) to move forward by elastic pressing through the detection card plate (634). Due to the continuous elastic force of the spring clamp ring (638), the detection card plate (634) can continuously push the limit baffle (33) under the action of the elastic force of the spring clamp ring (638). At this time, the two groups of proximity sensors (632) located in the detection baffle (631) in front of the limit baffle (33) can detect and sense the displacement spacing of the limit baffle (33), and then determine whether the reset spring (34) meets the standard after the above-mentioned durability test through the displacement spacing of the limit baffle (33).

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