Aviation fastener positioning device and positioning method thereof

Abstract

The invention relates to the field of aviation equipment machining, and discloses an aviation fastener positioning device which comprises a multi-station driving mechanism located on an in-line frame and used for forming linear displacement driving force of an aviation rivet fastener positioning structure. The multidirectional positioning mechanism is located on the suspension table and matched with the operation screw rod to be used for positioning and driving when the aviation rivet fastener is installed. The flexible clamping mechanism is located on the suspension table and matched with the arc-shaped limiting sliding frame to be used for flexibly clamping a blank to be provided with a rivet fastener. Through the combination of multiple groups of multidirectional positioning mechanisms and flexible clamping mechanisms, an efficient and flexible workpiece positioning and clamping mode is formed. The multi-direction positioning mechanism can carry out accurate feeding positioning on aviation rivet fasteners in multiple directions, and the positioning accuracy is ensured through linear displacement of the driving system. The flexible clamping mechanism can carry out flexible clamping according to the shape and the size of the workpiece, and the stability and the accuracy of the workpiece in the assembling process are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of aviation equipment processing, in particular to an aviation fastener positioning device and a positioning method thereof. Background Art

[0002] Fasteners are widely distributed on aircraft. On the fuselage and wings of a typical twin-aisle aircraft, there are about 400,000 fasteners such as bolts, nuts, rivets and other fasteners of various materials and structures. Among them, the most widely used fastener connection pairs are titanium alloy bolts and stainless steel support plate self-locking nuts.

[0003] Traditional aviation fastener positioning equipment usually relies on simple positioning devices, which are difficult to meet high-precision requirements. Especially in the assembly process of aviation blanks or rivet fasteners, inaccurate positioning may lead to assembly errors and affect the quality of the final product. Traditional positioning and clamping equipment is often designed specifically for a certain type of workpiece, lacks flexibility, and is difficult to adapt to aviation blanks or fasteners of different shapes or sizes. This will result in the equipment being able to only handle certain specific types of workpieces and cannot efficiently respond to diverse assembly needs. It usually requires more manual intervention, and manual adjustment of workpieces, positioning, clamping and other operations are required during the assembly process. This not only increases the workload, but also causes manual operation errors, affecting production efficiency and quality. During the assembly process, only simple linear motion or limited trajectory control can be performed, and it is difficult to achieve refined motion control and complex trajectory adjustment. The assembly process of aviation fasteners often requires complex paths and precise angle adjustments, which places higher requirements on the motion control capabilities of the equipment. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an aviation fastener positioning device and a positioning method thereof, which solve the problems of traditional aviation fastener positioning equipment such as insufficient positioning accuracy, poor adaptability, frequent manual intervention, and imprecise motion control, making it difficult to meet the needs of efficient and precise assembly.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aviation fastener positioning device, comprising:

[0006] Workbench, used for fixing the structure of the aviation rivet fastener positioning device;

[0007] The support ring frame is located on the working platform and is used to form a working space for installing aviation rivet fasteners;

[0008] The inline frame is located on the support ring frame and is used to fix and install the aviation rivet fastener positioning structure;

[0009] The suspension table is located on the workbench and is used to carry the blanks to be installed with rivet fasteners;

[0010] The multi-station drive mechanism is located on the inline frame and is used to form a linear displacement drive force for the aviation rivet fastener positioning structure;

[0011] The multi-directional positioning mechanism is located on the suspension platform and cooperates with the working screw to be used for positioning and driving during the installation of aviation rivet fasteners;

[0012] The flexible clamping mechanism is located on the suspension platform and cooperates with the arc-shaped limiting slide frame to flexibly clamp the blank to be installed with the rivet fastener.

[0013] Preferably, the support ring frame is fixedly connected to the top of the working platform, the in-line frame is fixedly connected to the top of the support ring frame, the suspension platform is fixedly connected to the working platform and extends to be suspended inside the support ring frame, the multi-station driving mechanism is arranged on the in-line frame, the multi-directional positioning mechanism is distributed on the suspension platform and extends into the support ring frame, and the flexible clamping mechanism is arranged on the suspension platform and extends to the inside of the support ring frame and between the multi-directional positioning mechanisms.

[0014] Preferably, the multi-station driving mechanism includes a working screw, a driving motor, a nut auxiliary arm and a traction slide. The working screw is rotatably connected to the side of the in-line frame, the traction slide is slidably connected to the inside of the in-line frame, the nut auxiliary arm is fixedly connected to the side wall of the traction slide, the nut auxiliary arm is threadedly connected to the threaded ring on the outside of the working screw, and the traction slide passes through the top wall of the support ring frame through a connecting opening and extends to the inside of the support ring frame.

[0015] Preferably, the multi-directional positioning mechanism includes an arc-shaped limit slide and a sleeve linkage platform, the arc-shaped limit slide is fixedly connected to the bottom end of the traction slide and extends into the support ring frame, arc-shaped grooves are inlaid on both sides of the arc-shaped limit slide, the sleeve linkage platform is slidably sleeved on the outside of the arc-shaped limit slide, and at the same time, the internal block structure of the sleeve linkage platform is embedded and slid into the arc-shaped groove, the internal side wall of the sleeve linkage platform is rotatably connected with an embedded gear, and the embedded gear is meshedly connected to the inner tooth key end of the arc-shaped limit slide, the side wall of the sleeve linkage platform is fixedly connected with a hydraulic ejector, and the telescopic end of the hydraulic ejector is fixedly connected with a feeding end pipe, and the input end of the feeding end pipe is an angled feeding pipe structure.

[0016] Preferably, the flexible clamping mechanism includes a middle-end limiting platform, a limit track platform, an in-line working platform, a flexible clamping assembly and a linkage pushing assembly, a clamping linkage platform, a linkage arm, a reset spring, a flexible contact terminal, a fine-tuning motor, a U-shaped guide groove, a one-way traction arm and a traction clamping column. The middle-end limiting platform is fixedly connected to the top center of the limit track platform, the limit track platform is fixedly connected to the suspension platform and extends to the inside of the supporting ring frame, the in-line working platform is arranged above the limit track platform, and relative sliding sleeves are relatively fixedly connected on both sides of the bottom of the in-line working platform, and the slide rail structure of the limit track platform is slidably connected with opposing slides on both sides, and the top of the limit track platform is slidably connected to the opposing slide through the opposing slide, the flexible clamping assembly is provided in multiple groups, and the two sides are relatively and equidistantly arranged on the in-line working platform, and the linkage pushing assembly is arranged on the middle-end limiting platform.

[0017] Preferably, the driving motor is arranged on the side wall of the inline frame, and the motor end is key-connected to one end of the operating screw.

[0018] Preferably, a working motor is provided on the side wall of the sleeve linkage platform, and a flat key at the motor end of the working motor is transmission-connected to the gear shaft of the embedded gear.

[0019] Preferably, the flexible clamping assembly includes a clamping linkage table, which is an L-shaped angle piece structure, and is fixedly connected to the in-line workbench on both sides relatively and equidistantly. A linkage arm is slidably connected to the top of the clamping linkage table, and a reset spring is connected between the linkage arm and the right-angle wall of the clamping linkage table. A flexible contact terminal is fixedly connected to the top of the inner wall of the linkage arm.

[0020] Preferably, the linked pushing assembly includes a U-shaped guide groove and a one-way traction arm, the U-shaped guide groove is arranged on the upper surface of the middle-end limiting table, the one-way traction arm is rotatably connected to the upper surface of the middle-end limiting table, a slide groove structure is arranged on the one-way traction arm, a traction column is fixedly connected to the bottom center of the in-line working table, the traction column is slidably connected in the slide groove structure of the one-way traction arm, a fine-tuning motor is fixedly connected to the bottom of the middle-end limiting table, and the output end flat key of the fine-tuning motor is transmission-connected to the bottom rotating shaft of the one-way traction arm.

[0021] Preferably, a positioning method for an aviation fastener positioning device comprises the following steps:

[0022] S1: Fastener positioning and feeding

[0023] The workbench serves as the overall support foundation of the equipment. The support ring frame provides a fastener positioning operation area to ensure that the operation area is fixed. Multiple sets of multi-directional positioning mechanisms are driven by the multi-station drive mechanism in the inline frame to achieve multi-directional feeding positioning of aviation rivet fasteners.

[0024] S2: Clamping and positioning of aviation blanks

[0025] A flexible clamping mechanism is installed on the suspension table to clamp and fix the aviation blank to be installed. The clamping mechanisms of the clamping linkage table are arranged equidistantly in the horizontal direction and driven inward to form a clamping environment to ensure that the blank is firmly clamped. By starting the fine-tuning motor, the traction clamping column slides in the U-shaped guide groove to accurately adjust the processing position of the blank.

[0026] S3: Displacement and adjustment of inline workbench

[0027] Start the multi-station drive mechanism, and drive the working screw to rotate through the drive motor, pushing the traction slide to slide in the inline frame. The multi-directional positioning mechanism and the flexible clamping mechanism together ensure that the blank is always accurately positioned during the whole process;

[0028] S4: Fastener feeding and installation

[0029] Start the operating motor to drive the embedded gear to engage with the inner tooth key of the arc-shaped limit slide, drive the sleeve linkage table to perform circular motion, and the hydraulic ejector cooperates with the feeding end pipe to feed the rivet fasteners into the aviation blank through the feeding pipeline system, ensuring that they are accurately positioned and installed on the blank.

[0030] The present invention provides an aviation fastener positioning device, which has the following beneficial effects:

[0031] 1. The present invention has the combined effect of multi-directional positioning and flexible clamping: the system forms an efficient and flexible workpiece positioning and clamping method through the combination of multiple groups of multi-directional positioning mechanisms and flexible clamping mechanisms. The multi-directional positioning mechanism can accurately position the aviation rivet fasteners in multiple directions, and ensure the positioning accuracy through the linear displacement of the driving system. At the same time, the flexible clamping mechanism can flexibly clamp according to the shape and size of the workpiece, and drive inward through the clamping linkage table to ensure the stability and accuracy of the workpiece during the assembly process, and realize the precise clamping of aviation blanks with complex shapes and sizes, while avoiding the problems of unstable clamping or inaccurate positioning that may exist in traditional fixing methods. The combination of the flexible clamping system and the multi-directional positioning system improves the adaptability and assembly accuracy of the equipment.

[0032] 2. The present invention has multi-station drive and fine-tuning control effects: the system adopts a multi-station drive mechanism for positioning, and at the same time, the fine-tuning motor is used for precise displacement adjustment. The fine-tuning motor can generate rotational torque to displace the fixed unidirectional traction arm on the slide rail, further optimizing the fine-tuning of the workpiece position and ensuring accurate operation of each link. The use of the fine-tuning motor improves the accuracy of the system and ensures the accuracy of the installation of fasteners on aviation blanks, especially when the installation requires multiple details of fine-tuning, ensuring accuracy and consistency.

[0033] 3. The present invention has the effects of fully automatic feeding and precise positioning: In this system, the angled structure of the feeding end tube is combined with the hydraulic system to accurately and continuously feed the rivet fasteners to the working area. The feeding end tube can automatically follow the movement of the workpiece to ensure that the rivet fasteners can be accurately delivered to the designated position for precise installation. The automatic feeding system improves production efficiency and effectively reduces manual intervention and errors, ensuring the efficient operation of the production line and the precise installation of fasteners.

[0034] 4. The present invention has an efficient driving system and stability: the equipment drives multiple working components to perform synchronous or asynchronous motion through a multi-station driving mechanism and a driving motor on a straight frame. The precise matching of each driving mechanism and mechanical components ensures the stability of the equipment during high-speed operation, reduces mechanical wear and failure rate, and the efficient and stable driving system ensures reliability and durability in long-term operation, reduces maintenance requirements, and improves the production capacity and work efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The main structure of the present invention is shown in three dimensions. Figure 1 ;

[0036] Figure 2 The main structure of the present invention is shown in three dimensions. Figure 2 ;

[0037] Figure 3 The main structure of the present invention is shown in three dimensions. Figure 3 ;

[0038] Figure 4 The support ring frame, the workbench and the inline frame assembly of the present invention are schematically shown. Figure 1 ;

[0039] Figure 5 It is a schematic diagram of the structure of the multi-directional positioning mechanism of the present invention;

[0040] Figure 6 The flexible clamping mechanism structure of the present invention is shown in FIG. Figure 1 ;

[0041] Figure 7 The flexible clamping mechanism structure of the present invention is shown in FIG. Figure 2 ;

[0042] Figure 8 It is a partial structural schematic diagram of the flexible clamping mechanism of the present invention;

[0043] Fig. 9 It is a schematic diagram of the structure of the flexible clamping assembly of the present invention;

[0044] Fig.10It is a schematic diagram of the steps of the positioning method of the present invention.

[0045] Among them, 1. working platform; 2. supporting ring frame; 3. in-line frame; 4. suspension table; 5. multi-station driving mechanism; 6. multi-directional positioning mechanism; 7. flexible clamping mechanism; 51. working screw; 52. driving motor; 53. nut auxiliary arm; 54. traction slide; 61. arc-shaped limit slide; 62. arc-shaped card slot; 63. sleeve linkage table; 64. working motor; 65. embedded gear; 66. hydraulic ejector; 67. feeding end tube; 71. middle end limit table; 72. limit track table; 73. in-line working table; 74. relative sliding sleeve; 75. opposite sliding table; 76. clamping linkage table; 77. linkage arm; 78. reset spring; 79. flexible contact terminal; 710. fine-tuning motor; 711. U-shaped guide groove; 712. one-way traction arm; 713. traction card column. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0047] Please see attached Figure 1 -Attached Figure 2 , an embodiment of the present invention provides an aviation fastener positioning device, comprising:

[0048] The working platform 1 is used for fixing the structure of the aviation rivet fastener positioning device. The support ring frame 2 is located on the working platform 1 and is used to form an operating space for installing aviation rivet fasteners. The inline frame 3 is located on the support ring frame 2 and is used to fix and install the aviation rivet fastener positioning structure. The suspension table 4 is located on the working platform 1 and is used to carry the blanks of the rivet fasteners to be installed. The support ring frame 2 is fixedly connected to the top of the working platform 1, the inline frame 3 is fixedly connected to the top of the support ring frame 2, the suspension table 4 is fixedly connected to the working platform 1 and extends to be suspended inside the support ring frame 2. The multi-station driving mechanism 5 is arranged on the inline frame 3, and the multi-directional positioning mechanism 6 is distributed on the suspension table 4 and extends to the inside of the support ring frame 2. The flexible clamping mechanism 7 is provided It is placed on the suspension platform 4 and extends to the inside of the support ring frame 2 and between the multi-directional positioning mechanisms 6. The equipment is mainly aimed at the positioning and assembly operations of aviation fasteners. The overall equipment is installed on the working platform 1. At the same time, the support ring frame 2 installed on the top of the working platform 1 is used as the working area for the fastener positioning operation. The aviation rivet fasteners themselves are fed and positioned by multiple groups of multi-directional positioning mechanisms 6, and the multiple groups of multi-directional positioning mechanisms 6 are driven by the multi-station driving mechanisms 5 installed inside the in-line frame 3 and perform linear displacement positioning. At the same time, the aviation blank on which the fasteners are to be installed is flexibly clamped and fixed by the flexible clamping mechanism 7 installed on the suspension platform 4, and is installed in the support ring frame 2, and the aviation blank is fixed by the flexible clamping mechanism 7.

[0049] Please see attached Figure 1 -Attached Figure 5 The multi-station drive mechanism 5 is located on the inline frame 3 and is used to form a linear displacement driving force for the positioning structure of the aviation rivet fastener. The multi-station drive mechanism 5 includes an operating screw 51, a driving motor 52, a nut auxiliary arm 53 and a traction slide 54. The operating screw 51 is rotatably connected to the side of the inline frame 3, and the traction slide 54 is slidably connected to the inside of the inline frame 3. The nut auxiliary arm 53 is fixedly connected to the side wall of the traction slide 54, and the nut auxiliary arm 53 is threadedly connected to the outer threaded ring of the operating screw 51. The traction slide 54 passes through the top wall of the support ring frame 2 through the connecting opening and extends It extends to the inside of the support ring frame 2, and the driving motor 52 is arranged on the side wall of the in-line frame 3. At the same time, the flat key at the motor end is connected to one end of the working screw 51, so that the multi-station driving mechanism 5 is enabled. At the same time, the driving motor 52 installed on the in-line frame 3 is started, so that it drives the working screw 51 fixed at the output end to rotate, and at the same time drives the nut auxiliary arm 53 connected with the thread and the traction slide 54 fixed to the nut auxiliary arm 53 to slide linearly inside the in-line frame 3, and the traction slide 54 drives the multi-directional positioning mechanism 6 fixed at its bottom to move linearly inside the support ring frame 2.

[0050] Please see attached Figure 1 -Attached Figure 5The multi-directional positioning mechanism 6 is located on the suspension platform 4, and cooperates with the working screw 51 for positioning and driving during the installation of aviation rivet fasteners. The multi-directional positioning mechanism 6 includes an arc-shaped limit slide 61 and a sleeve linkage platform 63. The arc-shaped limit slide 61 is fixedly connected to the bottom end of the traction slide 54 and extends into the support ring frame 2. Arc-shaped card grooves 62 are inlaid on both sides of the arc-shaped limit slide 61. The sleeve linkage platform 63 is slidably sleeved on the outer side of the arc-shaped limit slide 61. At the same time, the internal card block structure of the sleeve linkage platform 63 is embedded and slid into the arc-shaped card groove 6 2, the inner side wall of the sleeve linkage platform 63 is rotatably connected with an embedded gear 65, and the embedded gear 65 is meshed and connected with the inner tooth key end of the arc-shaped limit slide 61. The side wall of the sleeve linkage platform 63 is fixedly connected with a hydraulic ejector 66, and the telescopic end of the hydraulic ejector 66 is fixedly connected with a feed end pipe 67. The input end of the feed end pipe 67 is an angled feed pipe structure. The side wall of the sleeve linkage platform 63 is provided with an operating motor 64, and the motor end of the operating motor 64 is connected to the gear shaft of the embedded gear 65 by a flat key transmission, so that the multi-directional positioning mechanism 6 The multi-directional positioning mechanism 6 can always follow the blanks in the transportation process, and the multi-directional positioning mechanism 6 as a whole surrounds the blanks fixed and transported by the flexible clamping mechanism 7, and starts the additional working motor 64, so that the output end of the working motor 64 located inside the sleeve linkage table 63 drives the embedded gear 65 to rotate. The rotation of the embedded gear 65 and the meshing relationship with the arc-shaped internal tooth key installed on the inner side of the arc-shaped limiting slide 61 make the embedded gear 65 drive the sleeve linkage table 63 to start along the arc-shaped slot 62 installed on the arc-shaped limiting slide 61 on the arc-shaped limiting slide 61. It performs circular motion and can only move along the arc-shaped limiting slide 61. The hydraulic ejector 66 installed on the sleeve linkage table 63 and the feeding end tube 67 fixed at the output hydraulic rod end of the hydraulic ejector 66 also perform circular motion with the sleeve linkage table 63, and the rivet fasteners are continuously fed through the angled feeding pipeline structure of the feeding end tube 67, and are positioned and installed on the aviation blank through the in-line output port of the feeding end tube 67, so that the feeding end tube 67 can automatically follow the blank fixed by the flexible clamping mechanism 7 in a surrounding manner.

[0051] Please see attached Figure 1 -Attached Fig. 9The flexible clamping mechanism 7 is located on the suspension platform 4, and cooperates with the arc-shaped limiting slide 61 to flexibly clamp the blank to be installed with the rivet fastener. The flexible clamping mechanism 7 includes a middle-end limiting platform 71, a limiting track platform 72, an in-line working platform 73, a flexible clamping component and a linkage pushing component, a clamping linkage platform 76, a linkage arm 77, a reset spring 78, a flexible contact terminal 79, a fine-tuning motor 710, a U-shaped guide groove 711, a one-way traction arm 712 and a traction clamping column 713. The middle-end limiting platform 71 is fixedly connected to the top center of the limiting track platform 72, the limiting track platform 72 is fixedly connected to the suspension platform 4 and extends to the inside of the support ring frame 2, the in-line working platform 73 is arranged above the limiting track platform 72, and the bottom two sides of the in-line working platform 73 are relatively fixed A relative sliding sleeve 74 is connected, and the slide rail structure of the limiting track platform 72 is slidably connected to the opposing slide platforms 75 relative to both sides. The top of the limiting track platform 72 is slidably connected to the opposing slide platforms 75 through the opposing slide platforms 75. The flexible clamping components are provided in multiple groups, and the two sides are relatively and equidistantly arranged on the in-line working platform 73. The linkage pushing component is arranged on the middle end limiting platform 71. The flexible clamping components include a clamping linkage platform 76, which is an L-shaped angle piece structure. At the same time, the two sides are relatively and equidistantly fixedly connected to the in-line working platform 73. The top of the clamping linkage platform 76 is slidably connected to a linkage arm 77. A reset spring 78 is connected between the linkage arm 77 and the right-angle wall of the clamping linkage platform 76. The top of the inner wall of the linkage arm 77 is fixedly connected to a flexible The contact end 79, the linkage pusher assembly includes a U-shaped guide groove 711 and a one-way traction arm 712, the U-shaped guide groove 711 is arranged on the upper surface of the middle-end limiting platform 71, the one-way traction arm 712 is rotatably connected to the upper surface of the middle-end limiting platform 71, and a slide groove structure is arranged on the one-way traction arm 712. A traction clamping column 713 is fixedly connected to the bottom center of the in-line working platform 73, and the traction clamping column 713 is slidably connected in the slide groove structure of the one-way traction arm 712. A fine-tuning motor 710 is fixedly connected to the bottom of the middle-end limiting platform 71, and the output end flat key of the fine-tuning motor 710 is connected to the bottom rotating shaft of the one-way traction arm 712 through transmission, and the aviation blank is fixed by the flexible clamping mechanism 7, and multiple groups of horizontally equidistant rows installed on the top of the in-line working platform 73 are opened. The clamping linkage table 76 is arranged in a row, and the clamping linkage table 76 drives its output end inward at the same time, so that the multiple groups of relative clamping linkage tables 76 are displaced inward, and the linkage arm 77 and the flexible contact terminal 79 installed on the top thereof form a clamping environment. At the same time, the flexible contact terminal 79 and the reset spring 78 installed on the output end of the clamping linkage table 76 produce a flexible buffer in the clamping process to clamp the workpiece, and at the same time, the fine-tuning motor 710 is started, and the fine-tuning motor 710 generates a rotational torque, so that the one-way traction arm 712 fixed at its output end rotates on the top of the middle-end limiting table 71, and the traction clamping column 713 sliding inside it is displaced laterally along the inner groove track of the U-shaped guide groove 711 at the same time, so that the in-line working table 73 fixed on the top of the traction clamping column 713 and the workpiece are displaced left and right.The relative sliding sleeve 74 installed at the bottom of the inline workbench 73 moves forward and backward on the opposite sliding table 75, and the opposite sliding table 75 moves laterally on the limit track table 72 to adjust the processing position of the aviation blank clamping.

[0052] Please see attached Figure 1 -Attached Fig.10 The embodiment of the present invention provides a positioning method of an aviation fastener positioning device, comprising the following steps:

[0053] S1. Fastener positioning and feeding:

[0054] The equipment is mainly used for the positioning and assembly of aviation fasteners. The whole equipment is installed on the working platform 1. At the same time, the support ring frame 2 installed on the top of the working platform 1 is used as the working area for the fastener positioning operation. The aviation rivet fasteners themselves are positioned by multiple sets of multi-directional positioning mechanisms 6, and the multiple sets of multi-directional positioning mechanisms 6 are driven by the multi-station driving mechanism 5 installed inside the in-line frame 3 and perform linear displacement positioning. At the same time, the aviation blanks to be installed with fasteners are flexibly clamped and fixed by the flexible clamping mechanism 7 installed on the suspension platform 4, and installed in the support ring frame 2. The aviation blanks are fixed by the flexible clamping mechanism 7. The working platform 1 serves as the overall supporting foundation of the equipment, and the support ring frame 2 provides a fastener positioning operation area to ensure that the operation area is fixed. The multiple sets of multi-directional positioning mechanisms 6 are driven by the multi-station driving mechanism 5 in the in-line frame 5 to achieve multi-directional feeding and positioning of the aviation rivet fasteners.

[0055] S2: Clamping and positioning of aviation blanks:

[0056] A flexible clamping mechanism 7 is installed on the suspension table 4 for clamping and fixing the aviation blank to be installed. The clamping mechanism of the clamping linkage table 76 arranged equidistantly in the horizontal direction is driven inward to form a clamping environment to ensure that the blank is firmly clamped. By starting the fine-tuning motor 710, the traction clamping column 713 slides in the U-shaped guide groove 711 to accurately adjust the processing position of the blank. By opening multiple groups of clamping linkage tables 76 arranged equidistantly in the horizontal direction installed on the top of the in-line workbench 73, the clamping linkage table 76 drives its output end inward at the same time, so that multiple groups of relative clamping linkage tables 76 are displaced inward, and the linkage arm 77 and the flexible contact terminal 79 installed on the top form a clamping environment. At the same time, the flexible contact terminal 7 9 and the reset spring 78 installed at the output end of the clamping linkage table 76 generate a flexible buffer during the clamping process to clamp the workpiece, and at the same time start the fine-tuning motor 710, the fine-tuning motor 710 generates a rotational torque, so that the one-way traction arm 712 fixed at its output end rotates on the top of the middle-end limiting table 71, and the traction clamping column 713 sliding inside it simultaneously moves laterally along the inner groove track of the U-shaped guide groove 711, so that the in-line working table 73 fixed on the top of the traction clamping column 713 and the workpiece move left and right, and the relative sliding sleeve 74 installed at the bottom of the in-line working table 73 moves forward and backward on the opposing slide 75, and at the same time, the opposing slide 75 moves laterally on the limit track table 72 to adjust the processing position of the aviation blank clamping;

[0057] S3: Displacement and adjustment of inline workbench:

[0058] The multi-station drive mechanism 5 is started, and the working screw 51 is driven to rotate by the driving motor 52, so as to push the traction slide 54 to slide in the inline frame 3. The multi-directional positioning mechanism 6 and the flexible clamping mechanism 7 together ensure that the blank is always accurately positioned during the whole process. The multi-station drive mechanism 5 is enabled, and the driving motor 52 installed on the inline frame 3 is started at the same time, so that it drives the working screw 51 fixed at the output end to rotate, and at the same time drives the nut auxiliary arm 53 connected with the thread and the traction slide 54 fixed to the nut auxiliary arm 53 to slide linearly inside the inline frame 3. The traction slide 54 drives the multi-directional positioning mechanism 6 fixed at its bottom to move linearly inside the support ring frame 2, so that the multi-directional positioning mechanism 6 can always follow the blank during transportation;

[0059] S4: Fastener feeding and installation:

[0060] The operating motor 64 is started to drive the embedded gear 65 to mesh with the inner gear key of the arc-shaped limit slide 61, driving the sleeve linkage table 63 to perform circular motion, and the hydraulic ejector 66 cooperates with the feeding end pipe 67 to feed the rivet fastener into the aviation blank through the feeding pipeline system, and ensures that it is accurately positioned and installed on the blank, and the multi-directional positioning mechanism 6 as a whole surrounds the blank fixed and transported by the flexible clamping mechanism 7, and the installed operating motor 64 is started, so that the output end of the operating motor 64 located inside the sleeve linkage table 63 drives the embedded gear 65 to rotate, and the rotation of the embedded gear 65 and the meshing relationship with the arc-shaped internal gear key installed on the inner side of the arc-shaped limit slide 61 make the embedded The gear 65 drives the sleeve linkage platform 63 to start circular motion on the arc-shaped limit slide 61 along the arc-shaped slot 62 added to the arc-shaped limit slide 61, and can only move along the arc-shaped limit slide 61. The hydraulic ejector 66 added to the sleeve linkage platform 63 and the feeding end tube 67 fixed at the output hydraulic rod end of the hydraulic ejector 66 also move in a circular motion with the sleeve linkage platform 63, and the rivet fasteners are continuously fed through the angled feeding pipeline structure of the feeding end tube 67, and are positioned and installed on the aviation blank through the in-line output port of the feeding end tube 67, so that the feeding end tube 67 can automatically follow the blank fixed by the flexible clamping mechanism 7 around.

[0061] 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. An aviation fastener positioning device, characterized in that: include: A workbench (1) is used for fixing the structure of an aviation rivet fastener positioning device; The support ring frame (2) is located on the working platform (1) and is used to form an operating space for installing aviation rivet fasteners; The inline frame (3) is located on the support ring frame (2) and is used to fix and install the aviation rivet fastener positioning structure; The suspension platform (4) is located on the workbench (1) and is used to carry the blanks on which the rivet fasteners are to be installed; The multi-station driving mechanism (5) is located on the inline frame (3) and is used to form a linear displacement driving force for the aviation rivet fastener positioning structure; The multi-directional positioning mechanism (6) is located on the suspension platform (4) and cooperates with the operating screw rod (51) to be used for positioning and driving when installing aviation rivet fasteners; The flexible clamping mechanism (7) is located on the suspension platform (4) and cooperates with the arc-shaped limiting slide (61) to flexibly clamp the blank to be installed with the rivet fastener.

2. The aviation fastener positioning device according to claim 1, characterized in that: The support ring frame (2) is fixedly connected to the top of the working platform (1), the inline frame (3) is fixedly connected to the top of the support ring frame (2), the suspension platform (4) is fixedly connected to the working platform (1) and extends to be suspended inside the support ring frame (2), the multi-station driving mechanism (5) is arranged on the inline frame (3), the multi-directional positioning mechanism (6) is distributed on the suspension platform (4) and extends into the support ring frame (2), and the flexible clamping mechanism (7) is arranged on the suspension platform (4) and extends to the inside of the support ring frame (2) and between the multi-directional positioning mechanism (6).

3. The aviation fastener positioning device according to claim 1, characterized in that: The multi-station driving mechanism (5) comprises an operating screw (51), a driving motor (52), a nut auxiliary arm (53) and a traction slide (54); the operating screw (51) is rotatably connected to the side of the in-line frame (3); the traction slide (54) is slidably connected to the inside of the in-line frame (3); the nut auxiliary arm (53) is fixedly connected to the side wall of the traction slide (54); the nut auxiliary arm (53) is threadedly connected to the outer threaded ring of the operating screw (51); and the traction slide (54) penetrates the top wall of the support ring frame (2) through a connecting opening and extends to the inside of the support ring frame (2).

4. The aviation fastener positioning device according to claim 1, characterized in that: The multi-directional positioning mechanism (6) comprises an arc-shaped limit slide (61) and a sleeve linkage platform (63). The arc-shaped limit slide (61) is fixedly connected to the bottom end of the traction slide (54) and extends into the support ring frame (2). Arc-shaped card slots (62) are inlaid on both sides of the arc-shaped limit slide (61). The sleeve linkage platform (63) is slidably sleeved on the outer side of the arc-shaped limit slide (61). At the same time, the internal card block structure of the sleeve linkage platform (63) is embedded in the slide. The sleeve linkage platform (63) is moved into the arc-shaped slot (62), the inner side wall of the sleeve linkage platform (63) is rotatably connected with an embedded gear (65), the embedded gear (65) is meshedly connected to the inner tooth key end of the arc-shaped limit slide (61), the side wall of the sleeve linkage platform (63) is fixedly connected with a hydraulic ejector (66), the telescopic end of the hydraulic ejector (66) is fixedly connected with a feeding end pipe (67), and the input end of the feeding end pipe (67) is an angled feeding pipeline structure.

5. The aviation fastener positioning device according to claim 1, characterized in that: The flexible clamping mechanism (7) comprises a middle-end limiting platform (71), a limiting track platform (72), an in-line working platform (73), a flexible clamping assembly and a linkage pushing assembly, a clamping linkage platform (76), a linkage arm (77), a reset spring (78), a flexible contact terminal (79), a fine-tuning motor (710), a U-shaped guide groove (711), a one-way traction arm (712) and a traction clamping column (713), wherein the middle-end limiting platform (71) is fixedly connected to the top center of the limiting track platform (72), and the limiting track platform (72) is fixedly connected to the suspension platform (4) and extends to the support Inside the ring frame (2), the in-line working table (73) is arranged above the limiting track table (72), and relative sliding sleeves (74) are relatively fixedly connected on both sides of the bottom of the in-line working table (73), and the slide rail structure of the limiting track table (72) is slidably connected to the opposing slide tables (75) on both sides. The top of the limiting track table (72) is slidably connected to the opposing slide table (75) through the opposing slide table (75), and the flexible clamping components are provided in multiple groups, and are relatively and equidistantly arranged on both sides of the in-line working table (73), and the linkage pushing component is arranged on the middle end limiting table (71).

6. The aviation fastener positioning device according to claim 3, characterized in that: The driving motor (52) is arranged on the side wall of the inline frame (3), and the motor end is key-drivenly connected to one end of the operating screw rod (51).

7. The aviation fastener positioning device according to claim 4, characterized in that: The side wall of the sleeve linkage platform (63) is provided with an operating motor (64), and the motor end of the operating motor (64) is key-drivenly connected to the gear shaft of the embedded gear (65).

8. The aviation fastener positioning device according to claim 5, characterized in that: The flexible clamping assembly comprises a clamping linkage platform (76), the clamping linkage platform (76) is an L-shaped angle piece structure, and two sides are fixedly connected to the in-line working platform (73) oppositely and equidistantly, the top of the clamping linkage platform (76) is slidably connected to a linkage arm (77), a reset spring (78) is connected between the linkage arm (77) and the right-angle wall of the clamping linkage platform (76), and the top of the inner side wall of the linkage arm (77) is fixedly connected to a flexible contact terminal (79).

9. The aviation fastener positioning device according to claim 5, characterized in that: The linkage pusher assembly comprises a U-shaped guide groove (711) and a one-way traction arm (712); the U-shaped guide groove (711) is arranged on the upper surface of the middle-end limiting platform (71); the one-way traction arm (712) is rotatably connected to the upper surface of the middle-end limiting platform (71); a slide groove structure is arranged on the one-way traction arm (712); a traction clamping column (713) is fixedly connected to the center of the bottom of the in-line working platform (73); the traction clamping column (713) is slidably connected in the slide groove structure of the one-way traction arm (712); a fine-tuning motor (710) is fixedly connected to the bottom of the middle-end limiting platform (71); and an output end of the fine-tuning motor (710) is connected to the bottom rotating shaft of the one-way traction arm (712) by a flat key transmission.

10. A positioning method for an aviation fastener positioning device, according to the aviation fastener positioning device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Fastener positioning and feeding The workbench (1) serves as the overall supporting foundation of the equipment, and the support ring frame (2) provides a fastener positioning operation area to ensure that the operation area is fixed. Multiple sets of multi-directional positioning mechanisms (6) are driven by a multi-station driving mechanism (5) in the inline frame (5) to achieve multi-directional feeding positioning of aviation rivet fasteners. S2: Clamping and positioning of aviation blanks A flexible clamping mechanism (7) is installed on the suspension platform (4) for clamping and fixing the aviation blank to be installed. The clamping mechanisms arranged equidistantly in the horizontal direction of the clamping linkage platform (76) are driven inward to form a clamping environment to ensure that the blank is firmly clamped. By starting the fine-tuning motor (710), the traction clamping column (713) slides in the U-shaped guide groove (711) to accurately adjust the processing position of the blank. S3: Displacement and adjustment of inline workbench The multi-station drive mechanism (5) is started, and the operating screw (51) is driven to rotate by the drive motor (52), so as to push the traction slide (54) to slide in the inline frame (3), and the multi-directional positioning mechanism (6) and the flexible clamping mechanism (7) together ensure that the blank is always accurately positioned during the whole process; S4: Fastener feeding and installation The operating motor (64) is started to drive the internal gear (65) to mesh with the inner gear key of the arc-shaped limit slide (61), driving the sleeve linkage table (63) to perform circular motion, and the hydraulic ejector (66) cooperates with the feed end pipe (67) to feed the rivet fastener into the aviation blank through the feed pipeline system, and ensure that it is accurately positioned and installed on the blank.

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