Aero seat assembly performance detection device

Abstract

The invention relates to the technical field of aero seat performance detection, and particularly provides an aero seat assembly performance detection device. The device comprises a detection table; the lock catch clamp is arranged on the detection table and comprises a plurality of fixing positions; a lifting frame; the overturning rack is horizontally and rotatably mounted on the lifting rack; the plurality of drawing mechanisms are fixed on the overturning rack and are correspondingly matched with the plurality of fixing positions; the drawing mechanism comprises a tension sensor and a spring bolt clamp hinged to one end of the tension sensor and used for fixing a spring bolt, and a switching piece for switching the locking state or the unlocking state is arranged between the tension sensor and the spring bolt clamp in a matched mode. The inserting and pulling execution piece is horizontally and slidably installed on the lifting rack, and the unlocking mechanism is assembled on the inserting and pulling execution piece and used for synchronously unlocking the multiple lock catches. The detection device provided by the invention has a multi-performance detection function on the safety belt lock, the comprehensiveness, applicability and integration of the device are improved, the equipment cost investment is reduced, and the operation flexibility is higher during detection.

Description

Technical Field

[0001] The present invention relates to the technical field of aviation seat performance detection, and specifically proposes an aviation seat component performance detection device. Background Art

[0002] The aviation seat assembly is the component structure of the aviation seat, among which the seat belt is the key component in the aviation seat to ensure the safety of passengers. The seat belt is composed of webbing and locks. The lock is composed of a buckle and a lock tongue. It is the key component in the seat belt that determines its safety. The buckle is provided with an elastic locking structure. When the lock tongue is inserted into the buckle, the elastic locking structure automatically locks the lock tongue. Compared with the seat belt locks used in vehicles, the seat belt locks in aviation seats need to meet more stringent safety and reliability requirements, especially the locking reliability of the lock. Seat belt locks that meet the requirements can ensure their safety in normal use and emergency situations (such as aircraft turbulence, forced landing, collision, etc.) to the greatest extent, and reduce the risk of injury.

[0003] After the production of seat belt locks, it is necessary to conduct various performance tests to verify whether the locks meet the corresponding safety and quality standards; actual performance tests can be divided into mechanical performance tests, material performance tests, and environmental adaptability tests, among which mechanical performance tests can be divided into frequent plugging and unplugging fatigue tests, multi-angle static tension tests, and dynamic impact tests, etc. Under existing technologies, corresponding performance testing equipment is usually designed for different tests, but the existing testing equipment has a single detection function, cannot be replaced or switched in function, and has poor flexibility, resulting in more equipment and cost investment to complete system testing, which will also increase the space occupied by the equipment and increase the trouble of daily management and maintenance of the equipment. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an aviation seat assembly performance testing device for solving the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an aviation seat component performance testing device for inserting and removing seat belt buckles and performing tension testing, including: a testing platform; a buckle clamp, which is arranged on the testing platform and includes multiple fixed positions for synchronously fixing the buckles; a lifting frame, which is vertically driven and slidably mounted on the testing platform; a flipping frame, which is horizontally rotated and mounted on the lifting frame; multiple pulling mechanisms, which are fixed on the flipping frame and correspond to the multiple fixed positions; the pulling mechanism includes a tension sensor and a lock tongue clamp hinged at one end of the tension sensor for fixing the lock tongue, the tension sensor and the lock tongue clamp A switching member is provided between them to provide switching between locked and unlocked states; when locked, the tension sensor and the lock tongue clamp cannot rotate relative to each other and switch to the plug-in detection mode; when unlocked, they can be hinged and rotated and switch to the tension detection mode. The flip rack synchronously adjusts the tension angles of multiple pulling mechanisms by flipping; the plug-in actuator is horizontally slidably installed on the lifting rack and can be plugged into multiple pulling mechanisms together by sliding; in the plug-in detection mode, when the plug-in actuator rises and falls with the lifting mechanism, the top of the tension sensor drives the lock tongue to be relatively inserted into or pulled out of the lock buckle; and the unlocking mechanism is assembled on the plug-in actuator for synchronously unlocking multiple lock buckles.

[0006] Preferably, the pulling mechanism also includes a pulling assembly fixed on the flip frame; the force-bearing ends on both sides of the tension sensor are respectively fixed with a connecting seat and a hinge seat; the connecting seat is fixed to the pulling end of the pulling assembly, and the plug-in actuator can be horizontally plugged into the connecting seat; the hinge seat is hinged to the lock tongue clamp, and the switching member is assembled on the hinge seat.

[0007] Preferably, the lifting frame includes two lifting side plates arranged horizontally relative to each other and vertically slidably mounted on the detection table, with a connecting plate fixed between the two lifting side plates; the flip frame is horizontally rotatably mounted between the two lifting side plates; and the plug-in actuator is slidably mounted on the connecting plate.

[0008] Preferably, the plug-in actuator includes a transverse frame slidably mounted on the connecting plate and a plurality of plug-in plates horizontally arranged and fixed on the transverse frame, wherein the plurality of plug-in plates are arranged in a one-to-one correspondence with the plurality of pulling mechanisms; and a transverse insertion hole for horizontal insertion of the plug-in plates is provided on the connecting seat.

[0009] Preferably, the hinge seat is provided with a guide sleeve, and a switching hole is opened through the side wall of the guide sleeve; the switching member is slidably fitted in the guide sleeve along the force direction of the tension sensor; a positioning pin extending into the switching hole is fixed on the switching member, and the switching hole includes two arc holes distributed along the axial direction of the guide sleeve and an axial hole connected between the two arc holes; a positioning hole is provided on the lock tongue clamp for the switching member to be inserted into the axial direction of the guide sleeve.

[0010] Preferably, the unlocking mechanism includes a driving part that is slidably installed on the detection table along the sliding direction of the transverse frame. The driving end of the driving part is fixed with a pressing substrate that vertically slides with the transverse frame. The bottom end of the pressing substrate is fixed with multiple pressing plates that correspond to multiple fixed positions. The pressing plates are used to touch and unlock the lock.

[0011] Preferably, the locking clamp includes a plurality of positioning blocks distributed in a straight line and fixed on the surface of the detection table, and a locking clamp assembly is provided between the plurality of positioning blocks; the locking clamp assembly includes a plurality of locking clamps which are horizontally slidably installed in the plurality of positioning blocks in a one-to-one correspondence; the positioning blocks and the corresponding locking clamps together constitute a fixed position for clamping the lock.

[0012] Preferably, the locking tongue clamp includes a hinged head hinged to the hinged seat, a fixed splint is fixed on the hinged head, a sliding splint is slidably mounted on the fixed splint, and the locking tongue is clamped between the fixed splint and the sliding splint; a positioning hole is provided on the hinged head.

[0013] Preferably, an annular groove coaxially arranged with the rotation axis of the turning frame is fixed on the opposite surfaces of the two lifting side plates; and the turning frame is provided with two moving rods that move correspondingly along the two annular grooves.

[0014] The above technical solution has the following advantages or beneficial effects: the present invention provides an aviation seat component performance testing device, which is provided with a lock clamp for synchronously clamping and fixing multiple locks, and is cooperated with multiple pulling mechanisms. The pulling mechanism is provided with a lock tongue clamp that can clamp and fix the lock tongue, thereby forming multiple independent testing stations that constitute the same batch of testing; the pulling mechanism is provided with a switching structure that can realize plug-in and pull-out testing and tension testing, which can realize automatic frequent plug-in and pull-out testing, and can realize static tension testing under various tension angles, and the switching operation is simple and fast; the testing device has multiple performance testing functions for seat belt locks, which improves the comprehensiveness, applicability and integration of the device, reduces equipment cost investment, and reduces the space occupied by the equipment. The operation flexibility during testing is higher, and it is also convenient for daily management and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of an aviation seat component performance testing device provided by the present invention.

[0017] Figure 2It is a schematic diagram of the three-dimensional structure of an aviation seat component performance testing device provided by the present invention from another perspective.

[0018] Figure 3 It is a front view of an aviation seat assembly performance testing device provided by the present invention.

[0019] Figure 4 It is a rear view of an aviation seat assembly performance testing device provided by the present invention.

[0020] Figure 5 This is a diagram showing the relative positions of the lifting frame, plug-in actuator, unlocking mechanism assembly structure, and locking fixture.

[0021] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0022] Figure 7 It is a schematic diagram of the state of a single pulling mechanism during plugging and unplugging detection.

[0023] Figure 8 This is an assembly structure diagram of the connecting seat, tension sensor, hinged seat, lock tongue clamp and switching part.

[0024] Figure 9 It is a three-dimensional cross-sectional view of the hinge seat, lock tongue clamp and switching piece assembly.

[0025] Figure 10 It is a schematic diagram of the clamping state of a single lock in the lock fixture.

[0026] Figure 11 It is a three-dimensional structural diagram of the positioning block.

[0027] In the figure: 1. Test table; 11. Guide frame; 2. Locking fixture; 21. Positioning block; 211. Guide groove; 212. Slot; 22. Locking clamp assembly; 221. Sliding seat; 222. Locking clamp head; 3. Lifting frame; 31. Lifting side plate; 311. Annular groove; 32. Connecting plate; 4. Flipping frame; 41. Flipping arm; 411. Moving rod; 42. Top plate; 5. Pulling mechanism; 51. Hydraulic cylinder; 52. Elastic telescopic rod; 521. Telescopic rod assembly; 522. Tension spring; 53. Connecting seat; 531. Horizontal jack; 54. Tension sensor; 55. Articulated seat ;551, guide sleeve; 552, switching hole; 56, lock tongue clamp; 561, hinged head; 562, fixed splint; 563, sliding splint; 564, screw; 565, positioning hole; 566, plug block; 57, switching member; 571, positioning pin; 6, plug-in actuator; 61, transverse frame; 611, U-shaped rod; 612, plug-in plate base plate; 62, plug-in plate; 7, unlocking mechanism; 71, driving part; 72, pressing base plate; 73, pressing plate; 731, touch block; 8, lock; 81, lock buckle; 811, fixing part; 812, unlocking key; 82, lock tongue. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] See Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 10 and Figure 11, an aviation seat component performance testing device for testing the insertion and removal of a seat belt lock 8 and the tension test, the testing device includes a testing platform 1; the testing platform 1 is equipped with a lock clamp 2 for clamping and fixing the lock buckle 81; in this embodiment, the lock clamp 2 includes four positioning blocks 21 evenly distributed along a straight line and fixed to the surface of the testing platform 1 by bolts, the positioning block 21 is provided with a slot 212 for inserting the fixing portion 811 of the lock buckle 81, and the internal contour of the slot 212 is adapted to the structure of the fixing portion 811, the positioning block 21 is further provided with a guide groove 211 horizontally connected to the slot 212; a lock clamp assembly 22 is provided between the four positioning blocks 21; the lock clamp assembly 22 includes a slide mounted horizontally on the surface of the testing platform 1 The movable seat 221 and the inspection table 1 can be fixedly installed with a hydraulic cylinder (not shown in the figure) horizontally, and the sliding seat 221 is fixed to the output end of the hydraulic cylinder. The sliding seat 221 is driven to slide by the hydraulic cylinder; four locking clamps 222 are welded on the sliding seat 221, and the four locking clamps 222 correspond to the four positioning blocks 21. The locking clamps 222 are horizontally slidably installed in the guide grooves 211 of the corresponding positioning blocks 21. A bolt hole is provided on the fixing portion 811 of the lock buckle 81. The locking clamp 222 includes a pin portion inserted into the bolt hole of the fixing portion 811 and a side clamping portion for laterally clamping the fixing portion 811 in the slot 212; the positioning block 21 and the corresponding locking clamp 222 together constitute a fixed position for clamping the lock buckle 81, totaling four fixed positions.

[0031] The locks 8 used for testing can be randomly selected from the produced locks 8. Each lock 8 to be tested can be marked with information such as the production batch and numbered to facilitate product traceability after testing. In order to ensure a certain amount of sample testing and reduce the accidental error of the test results as much as possible to reflect the overall performance quality of all locks 8, in the present invention, the testing device uses four locks in a group for batch testing. According to the requirements of the test, when it is necessary to increase the total amount of test samples, multiple groups of batch testing can be selected.

[0032] During testing, the lock 81 is fixed separately by the lock clamp 2. Specifically, the fixing part 811 of the lock 81 is inserted into the slot 212 of the positioning block 21, and the four locks 81 are in a vertically aligned state in the positioning block 21. Then, the hydraulic cylinder of the lock clamp assembly 22 is started, so that each lock clamp head 222 passes through the bolt hole of the fixing part 811 and clamps the fixing part 811 in the slot 212, thereby completing the clamping and fixing of the four locks 81 simultaneously.

[0033] See Figure 1 、 Figure 2 、 Figure 3 and Figure 5A lifting frame 3 is vertically slidably mounted on the inspection table 1; two guide frames 11 are welded to the surface of the inspection table 1 and arranged horizontally opposite to each other; the lifting frame 3 includes two lifting side plates 31 that are horizontally opposite to each other and vertically slidably mounted on the two guide frames 11 in a one-to-one manner, and a connecting plate 32 is welded between the two lifting side plates 31; in this embodiment, a hydraulic cylinder (the hydraulic cylinder is not shown in the figure) can also be vertically fixed on the two guide frames 11 by bolts, and the lifting side plates 31 are fixed to the hydraulic cylinder on the same side by bolts, and the two hydraulic cylinders move synchronously when working.

[0034] See Figure 1 、 Figure 2 and Figure 5 , a flip frame 4 is assembled between the two lifting side plates 31; the flip frame 4 includes two flip arms 41 horizontally rotatably mounted on the two lifting side plates 31 through a rotating shaft, and a top plate 42 is welded between the ends of the two flip arms 41 away from the rotating shaft; in this embodiment, a stepper motor (not shown in the figure) is fixedly mounted on one of the lifting side plates 31 through a motor fixing seat, and the output shaft of the stepper motor is fixedly connected to the rotating shaft of the adjacent flip arm 41, and the stepper motor is used to drive the flip frame 4 to flip. It should be supplemented that the stepper motor is a self-locking motor, or the stepper motor cooperates with an external locking mechanism to achieve self-locking, for example, an electromagnetic brake can be installed to achieve self-locking, and the purpose of self-locking is to lock the flip frame 4 at a corresponding angle. In addition, in order to improve the stability of the flip frame 4, in this embodiment, annular grooves 311 coaxially arranged with the rotating shaft of the flip frame 4 are welded on the opposite surfaces of the two lifting side plates 31; and moving rods 411 that move along the annular grooves 311 on the same side are horizontally rotatably installed on the two flip arms 41. The cooperation between the moving rods 411 and the annular grooves 311 provides a fulcrum position for the flip frame 4 in addition to the rotating shaft.

[0035] See Figure 3 and Figure 7, four linearly evenly distributed pulling mechanisms 5 are assembled on the top plate 42, and the four pulling mechanisms 5 are arranged in correspondence with the four fixed positions. When the flip frame 4 is in a vertical state, the four pulling mechanisms 5 are distributed one by one just above the four positioning blocks 21; the pulling mechanism 5 includes a pulling assembly, a tension sensor 54, and a lock tongue clamp 56 hinged at one end of the tension sensor 54 for fixing the lock tongue 82. The pulling assembly includes a hydraulic cylinder 51 and an elastic telescopic rod 52. The hydraulic cylinder 51 is connected to the pull rod 52. It is fixed to the top plate 42 by bolts, and the elastic telescopic rod 52 includes a telescopic rod group 521 and a tension spring 522 sleeved on the telescopic rod group 521, and both ends of the tension spring 522 are welded to the two ends of the telescopic rod group 521; the tension sensor 54 is an existing columnar tension sensor 54, and the force-bearing ends on both sides of the tension sensor 54 are respectively welded with a connecting seat 53 and a hinge seat 55; one end of the telescopic rod group 521 is welded to the output end of the hydraulic cylinder 51, and the other end is fixedly connected to the connecting seat 53 by threaded fitting.

[0036] See Figure 8 and Figure 9 The locking tongue fixture 56 comprises a hinged joint 561 hinged to the hinge seat 55, and a fixed splint 562 is welded on the bottom end of the hinged joint 561, and the fixed splint 562 is equipped with a sliding splint 563, and two guide pins are welded on the sliding splint 563. The sliding splint 563 slides with the fixed splint 562 through the two guide pins. The sliding splint 563 is also rotatably mounted with a screw 564 that is threadedly matched with the fixed splint 562. The locking tongue 82 is provided with a rectangular belt hole for the safety belt to pass through, and the clamping surface of the sliding splint 563 is provided with a rectangular plug block 566 that can be inserted into the belt hole, and the plug block 566 is adapted to the size of the belt hole; when the locking tongue 82 is clamped and fixed, the locking tongue 82 can be inserted between the fixed splint 562 and the sliding splint 563. By rotating the screw 564, the plug block 566 is inserted into the belt hole, and finally the locking tongue 82 is clamped between the fixed splint 562 and the sliding splint 563.

[0037] See Figure 8 and Figure 9 In the present invention, the detection device is used to perform two comprehensive performance tests on the lock 8, namely, plug-in and pull-out detection and tension detection. During the actual detection process, it is necessary to switch between the plug-in detection mode and the tension detection mode; therefore, a switching member 57 for switching between the locked and unlocked states is provided between the tension sensor 54 and the lock tongue clamp 56; the hinged seat 55 is provided with a guide sleeve 551, and a switching hole 552 is provided on the side wall of the guide sleeve 551; the switching member 57 is slidably installed in the guide sleeve 551 along the force direction of the tension sensor 54; a positioning pin 571 extending into the switching hole 552 is welded on the switching member 57, and the switching hole 552 includes two arc holes distributed along the axial direction of the guide sleeve 551 and an axial hole connected between the two arc holes. The specific structure of the switching hole 552 can be seen Figure 8 and Figure 9 As shown; the hinged joint 561 is provided with a positioning hole 565 for the switching member 57 to be inserted along the axial movement of the guide sleeve 551.

[0038] When the switching member 57 is rotated to insert it into the positioning hole 565, and the positioning pin 571 is staggered from the axial hole and rotated to the arc hole in the switching hole 552 that is closer to the hinge head 561, it is in a locked state. Obviously, when locked, the tension sensor 54 and the lock tongue clamp 56 cannot rotate relative to each other. When the flip frame 4 is in a vertical state, the pulling mechanism 5 is also in a vertical state, and the clamped lock tongue 82 is directly above the insertion hole of the lower lock buckle 81. The force direction of the tension sensor 54 is consistent with the plug-in and pull-out direction. At this time, it can be switched to the plug-in and pull-out detection mode; when the switching member 57 is pulled out of the positioning hole 565, and the positioning pin 571 is staggered from the axial hole and rotated to the arc hole in the switching hole 552 away from the hinge head 561, it is in an unlocked state. When unlocked, the tension sensor 54 can be hinged and rotated between the hinge seat 55 and the lock tongue clamp 56. , at this time, switch to the tension detection mode; the flipping frame 4 can synchronously adjust the tension angle of the four pulling mechanisms 5 by flipping. When the pulling mechanism 5 is used to perform tension detection, the change of the tension angle of the tension sensor 54 is based on the hinge axis between the hinge seat 55 and the hinge head 561. In the present invention, in order to ensure that the flipping angle of the flipping frame 4 is basically consistent with the actual tension angle, when the pulling mechanism 5 is in a vertical state and the tension spring 522 is in a natural state, the rotating shaft of the flipping frame 4 and the hinge axes of the four hinge seats 55 are in a coaxial state. When the pulling mechanism 5 and the flipping frame 4 are synchronously lowered with the lifting frame 3, the coaxial state of the rotating shaft of the flipping frame 4 and the hinge axis of the hinge seat 55 remains unchanged. In addition, when performing tension detection, first vertically insert the lock tongue 82 into the lock buckle 81, and then adjust the tension angle by the flipping frame 4.

[0039] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In order to realize automatic frequent plugging and unplugging detection, the lifting frame 3 is equipped with a plugging and unplugging actuator 6, and an unlocking mechanism 7 is equipped with the plugging and unplugging actuator 6; the plugging and unplugging actuator 6 is used to synchronously perform frequent plugging and unplugging operations on the four locks 8 separately. During the plugging and unplugging operation, before the lock tongue 82 is pulled out from the lock buckle 81, the four locks 8 are synchronously pressed and unlocked by the unlocking mechanism 7.

[0040] See Figure 2 、 Figure 5 、 Figure 7 and Figure 8The plug-in and unplugging actuator 6 includes a transverse frame 61 and four plug-in plates 62. The transverse frame 61 includes a U-shaped rod 611 horizontally slidably mounted on the connecting plate 32 and a plug-in plate seat plate 612 welded between the two ends of the U-shaped rod 611. The four plug-in plates 62 are evenly distributed along the horizontal straight line direction and are all welded to the same side plate surface of the plug-in plate seat plate 612. The four plug-in plates 62 correspond to the four pulling mechanisms 5 one by one. The connecting seat 53 is provided with a transverse insertion hole 531 for the horizontal insertion of the plug-in plate 62.

[0041] See Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The unlocking mechanism 7 includes a driving part 71. In this embodiment, the driving part 71 is specifically a vertically mounted hydraulic cylinder. A sliding base is welded to the bottom end of the hydraulic cylinder. The hydraulic cylinder is slidably mounted on the detection platform 1 through the sliding base, and is arranged to slide in the same direction as the transverse frame 61; a pressing base plate 72 is welded to the output end of the hydraulic cylinder for vertically sliding cooperation with the plug-in plate seat plate 612, and four pressing plates 73 are welded to the bottom end of the pressing base plate 72 for corresponding cooperation with the four fixed positions. The pressing plate 73 is used to touch and unlock the lock buckle 81, and a touch block 731 is glued and fixed to the bottom end of the pressing plate 73 for pressing and contacting the unlocking key 812 of the lock buckle 81, and the touch block 731 is made of rubber material.

[0042] The present invention provides an aviation seat assembly performance testing device, which can perform plug-in and pull-out testing and tension testing on the aviation seat belt lock 8 through state switching; it should be supplemented that the designed lock 8 has corresponding industry-specified performance testing standards, and the corresponding standards are used as the basis for actual testing.

[0043] Perform frequent plugging and unplugging detection

[0044] Preparation stage: clamp the four lock buckles 81 in the four positioning blocks 21 in turn through the lock buckle clamp 2, and clamp the four lock tongues 82 in the four lock tongue clamps 56 in turn; switch the hinge seat 55 and the lock tongue clamp 56 in the pulling mechanism 5 to the locked state through the switching member 57; keep the flip frame 4 in the vertical state, at this time, the lock tongue 82 is vertically aligned with the insertion hole of the lock buckle 81; then, adjust the height of the lifting frame 3 first so that the insertion plate 62 is horizontally aligned with the corresponding horizontal insertion hole 531, then hold the U-shaped rod 611, push the transverse frame 61 to move horizontally, so that the insertion plate 62 is inserted into the transverse insertion hole 531, and the unlocking mechanism 7 moves synchronously with the transverse frame 61 until the contact block 731 is directly above the unlocking key 812 of the corresponding lock buckle 81.

[0045] Detection stage: the lifting frame 3 rises and falls back and forth, and the unlocking mechanism 7 cooperates with it to respond; in the descending stage, the lifting frame 3 drives the plugging and unplugging actuator 6 to descend synchronously, and the pulling mechanism 5 and the flip frame 4 also descend synchronously, and the plug plate 62 assists in pushing the lock tongue 82 into the lock buckle 81; before the lifting frame 3 rises, the unlocking mechanism 7 is started first, and the driving part 71 drives the pressing base plate 72 to descend, so that the pressing plate 73 is pressed on the unlocking key 812 through the contact block 731, completing the unlocking of the lock buckle 81 and maintaining the contact state, then, the lifting frame 3 rises, and the plug plate 62 indirectly drives the lock tongue 82 to be pulled out of the lock buckle 81 through the pulling mechanism 5. Before descending and inserting again, the unlocking mechanism 7 is reset, and the unlocking key 812 is restored to the unlocked state; thereafter, the above action process is repeated, and the cyclic plugging and unplugging detection is performed according to the standard number of cycles. During the detection process, the tension sensor 54 can directly monitor the resistance when the lock tongue 82 is inserted into the lock buckle 81 during each plugging and unplugging test, and record the force data of the tension sensor 54 during each plugging and unplugging test in real time; if within the standard number of cycles, the resistance value of each plugging and unplugging monitored by the tension sensor 54 is basically similar, or shows an overall decreasing trend with the increase in the number of cycles, it means that the elasticity of the elastic locking mechanism of the lock buckle 81 is gradually attenuating, but the maximum change value is within the allowable range, indicating that the four locks 8 have passed the frequent plugging and unplugging test and meet the corresponding quality standard requirements; if the final monitoring feedback data shows that the resistance value of a certain lock 8 decreases abnormally during a certain plugging and unplugging process, it means that the plugging and unplugging of the lock buckle 81 is abnormal at the corresponding number of cycles, and observe whether the elastic locking structure in the lock buckle 81 has problems such as deformation, breakage, and spring elasticity failure.

[0046] During the plug-in and unplug-in detection process, the lifting frame 3 drives the flip frame 4 and the pulling mechanism 5 to rise and fall synchronously. Although the plug-in and unplugging action can be completed, the elastic telescopic rod 52 needs to store force indirectly through the compression spring during the insertion or unplugging process. During the cyclic plug-in and unplugging detection process, the frequent force storage of the compression spring reduces the efficiency of the plug-in and unplugging action, and at the same time, the elastic force of the compression spring will fail due to fatigue cycles. Therefore, a plug-in and unplugging actuator 6 is provided to assist in the execution of the plug-in and unplugging action, which can not only improve the efficiency of the plug-in and unplugging action, but also ensure the standardization and stability of the plug-in and unplugging action. In addition, the matching assembly design between the unlocking mechanism 7 and the plug-in and unplugging actuator 6, on the one hand, the sliding fit between the pressing base plate 72 and the plug-in base plate 612 can achieve a mutual guiding effect, further enhancing the stability of the plug-in and unplugging actuator 6 during the cyclic plug-in and unplugging detection process. On the other hand, the unlocking mechanism 7 can move synchronously with the plug-in and unplugging actuator 6, which can achieve mobile avoidance and facilitate the clamping and fixing operation of the lock buckle 81.

[0047] Perform multi-angle tensile testing (static tensile testing)

[0048] Preparation stage: While maintaining the plug-in detection state, insert the lock tongue 82 into the lock buckle 81, then move the plug-in actuator 6 away first, so that the plug plate 62 is pulled out from the horizontal insertion hole 531, and then, switch the switching member 57 of each pulling mechanism 5 to the unlocked state in turn.

[0049] Detection stage: During the detection process, the pulling mechanism 5 is driven to flip over by the flipping frame 4, thereby adjusting the tension detection angle, and performing vertical tension detection at 0° angle, 45° angle tension detection and 90° angle tension detection respectively. In this embodiment, the above three typical tension angles are used for actual detection, but in actual operation, detection of other tension angles can also be performed; the detection process is carried out in batches in sequence. It should be added that the detection lock 8 needs to be replaced when detecting at different tension angles; when performing vertical tension detection, the pulling mechanism 5 is in a vertical state, and the output end of the hydraulic cylinder 51 contracts at a uniform speed, so that the telescopic rod group 521 is synchronously extended, the tension spring 522 is extended, and the elastic telescopic rod 52 compensates for the displacement of the contraction of the hydraulic cylinder 51, but the hydraulic cylinder 51 indirectly transmits the tension to the tension sensor 54 through the elastic telescopic rod 52, and the tension sensor 54 pulls the lock tongue 82 through the lock tongue clamp 56. In this process, the hydraulic cylinder 5 1 only plays the role of applying force, the tension sensor 54 acts on the lock tongue 82 through the hinge seat 55 and the lock tongue clamp 56, the force direction of the tension sensor 54 is consistent with the tension direction, and there is no need to consider the tension change of the elastic telescopic rod during the tension transmission. The tension measured by the tension sensor 54 can be directly regarded as the real-time tension of the lock 8; when the tension monitored by the tension sensor 54 reaches the specified tension, the hydraulic cylinder 51 stops contracting and keeps it for several minutes, observing the condition of each lock 8 to see whether the lock 8 is broken, slipped, or locked. If the above phenomenon does not occur, it means that the batch of locks 8 has passed the tension test at a tension angle of 0°. If any lock 8 appears on the above line, it means that the lock 8 has failed the test; then, the tension angle is adjusted by flipping the frame 4, and the test is repeated according to the vertical tension test method to observe and record the tension test conditions at a tension angle of 45° and a tension angle of 90°.

[0050] After the test is completed, the results of the comprehensive plug-in test and the tensile test are analyzed, and the lock 8 with abnormal detection is traced according to its label and other information, and it is analyzed whether there are problems in any production links such as raw material preparation and production process operation, and the problems found are rectified. After the rectification is completed, the performance of the produced lock 8 products can be tested and verified again to ensure that the lock 8 meets the corresponding safety and quality standards.

[0051] The present invention provides an aviation seat component performance testing device, which is provided with a lock clamp 2 for synchronously clamping and fixing multiple lock buckles 81, and is cooperated with multiple pulling mechanisms 5. The pulling mechanism 5 is provided with a lock tongue clamp 56 that can clamp and fix the lock tongue 82, thereby forming multiple independent testing stations that constitute the same batch of testing; the pulling mechanism 5 is provided with a switching structure that can realize plug-in testing and tension testing, which can realize automatic frequent plug-in testing, and can also realize static tension testing under various tension angles, and the switching operation is simple and fast; the testing device has multiple performance testing functions for the seat belt lock 8, improves the comprehensiveness, applicability and integration of the device, reduces the equipment cost investment, and reduces the space occupied by the equipment, has higher operational flexibility during testing, and is also convenient for daily management and maintenance.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An aviation seat assembly performance testing device for inserting and removing seat belt locks and performing tension testing, characterized in that: include: Testing bench; A locking fixture, which is provided on the test bench and includes a plurality of fixing positions for synchronously fixing the locking buckles; A lifting frame is driven vertically and is mounted on the inspection table in a sliding manner; Flip the rack and rotate it horizontally to be installed on the lifting rack; Multiple pulling mechanisms are fixed to the flip frame and correspondingly cooperate with multiple fixed positions; the pulling mechanism includes a tension sensor and a lock tongue clamp hinged at one end of the tension sensor for fixing the lock tongue, and a switching member is provided between the tension sensor and the lock tongue clamp to provide a locked or unlocked state switch; when locked, the tension sensor and the lock tongue clamp cannot rotate relative to each other and switch to the plug-in detection mode; when unlocked, they can be hinged and rotated and switch to the tension detection mode. The flip frame synchronously adjusts the tension angles of the multiple pulling mechanisms by flipping; The plug-in actuator is horizontally slidably mounted on the lifting frame and can be plugged into multiple pulling mechanisms by sliding. In the plug-in detection mode, when the plug-in actuator rises and falls with the lifting mechanism, the top of the tension sensor drives the lock tongue to insert or pull out the lock relative to the lock. And an unlocking mechanism is assembled on the plug-in actuator and is used for synchronously unlocking multiple locks.

2. The aircraft seat assembly performance testing device according to claim 1, characterized in that: The pulling mechanism also includes a pulling assembly fixed on the flip frame; the force-bearing ends on both sides of the tension sensor are respectively fixed with a connecting seat and a hinged seat; the connecting seat is fixed to the pulling end of the pulling assembly, and the plug-in actuator can be horizontally plugged into the connecting seat; the hinged seat is hinged on the lock tongue clamp, and the switching member is assembled on the hinged seat.

3. The aircraft seat assembly performance testing device according to claim 2, characterized in that: The lifting frame includes two lifting side plates arranged horizontally relative to each other and vertically slidably mounted on the detection table, with a connecting plate fixed between the two lifting side plates; the flip frame is horizontally rotatably mounted between the two lifting side plates; the plug-in actuator is slidably mounted on the connecting plate.

4. The aircraft seat assembly performance testing device according to claim 3, characterized in that: The plug-in actuator includes a transverse frame slidably mounted on the connecting plate and a plurality of plug-in plates horizontally arranged and fixed on the transverse frame. The plurality of plug-in plates are arranged in a one-to-one correspondence with the plurality of pulling mechanisms. The connecting seat is provided with a transverse insertion hole for the plug-in plates to be horizontally inserted.

5. The aircraft seat assembly performance testing device according to claim 2, characterized in that: The hinge seat is provided with a guide sleeve, and a switching hole is opened through the side wall of the guide sleeve; the switching part is slidably fitted in the guide sleeve along the force direction of the tension sensor; a positioning pin extending into the switching hole is fixed on the switching part, and the switching hole includes two arc holes distributed along the axial direction of the guide sleeve and an axial hole connected between the two arc holes; the lock tongue clamp is provided with a positioning hole for the switching part to be inserted into the axial direction of the guide sleeve.

6. The aircraft seat assembly performance testing device according to claim 4, characterized in that: The unlocking mechanism includes a driving part installed on the detection table in a sliding direction along the sliding direction of the transverse frame. The driving end of the driving part is fixed with a pressing base plate that vertically slides with the transverse frame. The bottom end of the pressing base plate is fixed with multiple pressing plates corresponding to multiple fixed positions. The pressing plates are used to touch and unlock the lock.

7. The aircraft seat assembly performance testing device according to claim 1, characterized in that: The locking clamp includes a plurality of positioning blocks distributed in a straight line and fixed on the surface of the test table, and a locking clamp assembly is provided between the plurality of positioning blocks; the locking clamp assembly includes a plurality of locking clamps which are horizontally slidably installed in the plurality of positioning blocks in a one-to-one correspondence; the positioning blocks and the corresponding locking clamps together constitute a fixed position for clamping and fixing the lock.

8. The aircraft seat assembly performance testing device according to claim 5, characterized in that: The lock tongue clamp includes a hinged head hinged to the hinged seat, a fixed clamping plate is fixed on the hinged head, a sliding clamping plate is slidably mounted on the fixed clamping plate, and the lock tongue is clamped between the fixed clamping plate and the sliding clamping plate; a positioning hole is opened on the hinged head.

9. The aircraft seat assembly performance testing device according to claim 3, characterized in that: Annular grooves coaxially arranged with the rotating shaft of the turnover frame are fixed on the opposite surfaces of the two lifting side plates; and two moving rods correspondingly moving along the two annular grooves are provided on the turnover frame.

Images