Fender assembly system

Abstract

The present application relates to the field of aviation electrical equipment manufacturing, and discloses a wave-proof sleeve assembly system, which comprises a rack, a control unit, a wave-proof sleeve feeding and cutting mechanism, a double-acting pneumatic chuck assembly, a copper wire feeding mechanism, a soldering mechanism and a copper wire cutting mechanism, further comprising a copper wire pushing and arranging mechanism and a pressing connecting rod mechanism, the copper wire is adapted to pass through the channel and trigger the pressing connecting rod mechanism by moving the slider, drive the whole clamping and pressing head to move downward relative to the pushing actuator, so as to clamp and press the copper wire on the surface of the wave-proof sleeve. The present application integrates the functions of automatic wave-proof sleeve feeding, fixed-length cutting, automatic copper wire conveying, mechanical linkage pressing, multi-turn side-by-side winding, synchronous multi-point welding, automatic copper wire cutting and end straightening, realizes the full-process automation except for manual feeding and discharging, and has high production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aviation electrical equipment manufacturing, in particular to a wave-proof sleeve assembly system. BACKGROUND

[0002] The aviation plug is a key connector in the electrical system of an aircraft, and the tail thereof needs to be installed with a wave-proof sleeve and then be welded after being wound with copper wire to achieve electromagnetic shielding and mechanical fixation. The assembly process is complex, and traditionally mainly relies on manual operation, which has the following systematic technical problems:

[0003] Firstly, in the wave-proof sleeve processing link, manual measurement and cutting have low efficiency and poor length consistency, and the flexible braided sleeve is not easy to position.

[0004] Secondly, in the copper wire winding and welding link, this is the core difficulty. Manual winding cannot guarantee uniform number of turns and consistent spacing, and the position, size and firmness of the welding points depend entirely on the experience of the operator, which is prone to virtual welding, missed welding or welding bumps, resulting in unstable shielding effectiveness and low product pass rate. Although there are some automated devices to replace manual operation, they are mostly focused on certain functions, such as only achieving feeding and cutting, or only achieving single-position welding, and lack a high-precision automated solution that seamlessly integrates feeding, cutting, winding, wire arrangement, multi-point welding and post-processing processes. In particular, for the automatic wire arrangement and compression of copper wire, existing technologies often rely on complex and expensive multi-axis linkage control systems, or cannot effectively solve the problems of fixing the starting point of winding and the accuracy of wire arrangement during the winding process, resulting in complex system structure, high cost or insufficient reliability.

[0005] Therefore, there is an urgent need for an automated assembly system with high integration, reliable operation, which can automatically complete all processes from wave-proof sleeve feeding to copper wire winding and welding, and can ensure neat winding and welding quality. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides an assembly system for a wave-proof sleeve of an aviation plug, aiming to solve the technical problems of low automation, poor connection between processes, poor consistency of copper wire winding and welding quality, and complex system structure in the prior art.

[0007] The present application provides a wave-proof sleeve assembly system, which comprises a rack, a control unit, a wave-proof sleeve feeding and cutting mechanism, a double-acting pneumatic chuck assembly, a copper wire feeding mechanism, a soldering mechanism and a copper wire cutting mechanism; and further comprises:

[0008] A copper wire pushing and arranging mechanism, which comprises a driving module mounted on the rack;

[0009] A pushing actuator mounted on the moving part of the driving module;

[0010] A clamping and pressing head connected to the action end of the knob actuator;

[0011] The clamping and pressing head is internally provided with:

[0012] A pressing plate with a channel formed therein;

[0013] A pair of symmetrically arranged sliders in the channel;

[0014] A pressing link mechanism, the input end of which is coupled with the slider, and the output end of which is connected with the base of the clamping and pressing head;

[0015] Wherein, the copper wire is adapted to pass through the channel, and the pressing link mechanism is triggered by pushing the sliders to move towards each other, driving the clamping and pressing head to move downward as a whole relative to the knob actuator, so as to clamp and press the copper wire against the surface of the wave-proof sleeve.

[0016] The present application is a wave-proof sleeve assembly system, wherein the clamping and pressing head further comprises a sleeve, which is sleeved on one end of the base, and the base is spring-connected with the sleeve, and the other end of the base is fixed with two pressing plates arranged at an angle.

[0017] The present application is a wave-proof sleeve assembly system, wherein the knob actuator comprises a belt conveyor configured with a tensioning wheel, the lower surface of the belt conveyor is embedded with a support plate, the support plate is connected with a sleeve, the belt conveyor is arranged on a mounting frame, and the mounting frame is fixed with a rack.

[0018] The present application is a wave-proof sleeve assembly system, wherein the pressing link mechanism comprises a first support rod, which is fixed with the slider, and the first support rod is inserted into a slant hole of a second support rod, and the second support rod is fixed with the base.

[0019] The present application is a wave-proof sleeve assembly system, wherein a square box is arranged in the channel, the slider moves along the square box, and the square box is fixedly connected with the sleeve through a connecting rod.

[0020] The present application is a wave-proof sleeve assembly system, wherein the support plate is provided with a track, the sleeve is arranged in the track and moves along the track, the sleeve is fixed with a guide sleeve with an internal thread, the guide sleeve is threadedly connected with a lead screw, and the lead screw is drivingly connected with a servo motor.

[0021] The present application is a wave-proof sleeve assembly system, wherein a limiting pressing head is fixed on the mounting frame, the limiting pressing head is aligned with the clamping and pressing head, and the copper wire can be bent between the two.

[0022] The application is a wave-proof sleeve assembly system, wherein the soldering mechanism comprises a tin wire feeder and a constant temperature soldering gun, and a soldering gun lifting mechanism.

[0023] The application is a wave-proof sleeve assembly system, wherein the double-action pneumatic chuck assembly comprises a pneumatic chuck, a servo motor and a synchronous belt and pulley transmission pair connecting the servo motor and the pneumatic chuck.

[0024] The application is a wave-proof sleeve assembly system, wherein the copper wire feeding mechanism comprises a V-shaped groove wire feeding wheel and a bearing compression wheel driven by a stepping motor.

[0025] The application is a wave-proof sleeve assembly system, which is different from the prior art in that:

[0026] 1. The application is a wave-proof sleeve assembly system with high integration and full automation. The system integrates automatic feeding, fixed-length cutting, automatic copper wire conveying, mechanical linkage compression, multi-turn side-by-side winding, synchronous multi-point welding, automatic copper wire cutting and end straightening functions, realizes full-process automation except for manual feeding and discharging, and has high production efficiency.

[0027] 2. The mechanical linkage type clamping and pressing head uses the feeding movement of the copper wire itself as a trigger signal to realize the linkage function of "clamping when feeding and pressing when clamping" through mechanical structure. The mechanism does not need additional sensors and complex control, has simple and compact structure, reliable action, strong anti-interference ability, and effectively guarantees the positioning accuracy and pressing force of the initial welding point.

[0028] 3. The winding and welding quality is significantly improved. The step-by-step wire arrangement realized by the driving module ensures the consistency of the copper wire winding spacing. Mechanical pressing ensures the close contact of the copper wire and the wave-proof sleeve during welding, which fundamentally avoids false welding. Combined with the precise indexing welding controlled by the PLC, the consistency and reliability of the product are fundamentally guaranteed.

[0029] 4. The added "straightening" process eliminates end defects and effectively solves the problem of bending of the end part of the copper wire after cutting due to residual stress, improving the appearance and quality of the product.

[0030] The application is a wave-proof sleeve assembly system, which is different from the prior art in that: BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a front view of a wave-proof sleeve assembly system;

[0032] Figure 2 is Figure 1 is a partial structure view of the wave-proof sleeve assembly system shown in the figure;

[0033] Figure 3 is an axonometric view of the copper wire poking and arranging mechanism;

[0034] Figure 4 is Figure 2 is a partial enlarged view at A in

[0035] Figure 5 is Figure 2 is a side view of

[0036] Figure 6 is Figure 5 is a partial enlarged view at B in

[0037] Figure 7 is Figure 6 is a partial enlarged view at C in

[0038] In the drawings:

[0039] frame 1, control unit 2, wave-breaker sleeve feed cutting mechanism 3, double-acting pneumatic chuck assembly 4, copper wire feeding mechanism 5, soldering mechanism 6, soldering gun lifting mechanism 7, copper wire cutting mechanism 8, copper wire poking and arranging mechanism 9;

[0040] drive module 90, poking actuator 91, clamping and pressing head 92, channel 93, pressing plate 94, sleeve 95, square box 96, base 97;

[0041] pressing link mechanism 900, sliding block 901, first support rod 902, second support rod 903, inclined hole 904;

[0042] belt conveyor 10, support plate 11, mounting frame 13, track 20, guide sleeve 21, lead screw 22, limit pressing head 23. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] Please refer to Figures 1 to 7 , specifically including the following embodiments: EMBODIMENT

[0045] Frame 1 is the bearing base of the whole system, which is welded by high-strength steel profiles and plates, and is annealed to ensure the stability during long-term use. All functional modules are fixed on it through precision machining mounting surface, which ensures the relative position accuracy between mechanisms.

[0046] The control unit 2 is the control core of the system, usually a programmable logic controller (PLC). Its working principle is: through the input module to collect real-time sensor signals from various parts, such as the arrival signal of the optical fiber sensor and the position signal of the limit switch; the central processing unit (CPU) scans these input states cyclically and executes the pre-written user program; after the program runs, the output module sends control instructions to various actuators, such as servo drivers, stepper motor drivers, pneumatic solenoid valves, and relays. For example, the PLC controls the precise rotation angle of the servo motor through the pulse string interface, and controls the on and off of the pneumatic solenoid valve through the relay output point, thereby accurately coordinating the timing and rhythm of the entire assembly process.

[0047] The fender sleeve feeding and cutting mechanism 3 is used for automatic feeding and fixed-length cutting of the fender sleeve. It includes a fender sleeve material wheel, a feeding roller set driven by a stepper motor, an optical fiber sensor, and a pneumatic cutting knife. When working, the feeding roller set pulls the material forward, and when the optical fiber sensor detects that the front end of the material reaches the set position, the PLC controls the feeding to stop, and then triggers the pneumatic cutting knife to act, completing the fixed-length cutting.

[0048] The double-acting pneumatic chuck assembly 4 is used to clamp and drive the rotation of the aviation plug workpiece. Its core is a "double-acting" pneumatic chuck, which first elastically clamps the plug body with a small clamping force to avoid damage, and then firmly fixes the fender sleeve with a larger clamping force. The chuck is driven by a servo motor through a synchronous belt and a synchronous wheel, and the PLC can accurately control its indexing rotation, such as 90° each time.

[0049] The copper wire feeding mechanism 5 is used to stably feed the tinned copper wire. It uses a combination of a V-shaped groove feeding wheel and a bearing pressure wheel, driven by a hybrid stepper motor. The PLC accurately adjusts the feeding speed by controlling the pulse frequency.

[0050] The soldering mechanism 6 is used for automatic solder feeding and welding. It includes a solder wire feeder and a constant-temperature soldering gun. The soldering gun is installed on a soldering gun lifting mechanism 7 composed of a servo motor, a ball screw, and a linear guide rail, and its accurate lifting is controlled by the PLC to complete the contact and separation of the welding head.

[0051] The copper wire cutting mechanism 8 is a pneumatic cutting knife. After the winding and welding are completed, the PLC controls the cylinder to act, cutting the copper wire. The installation angle of the cutting blade matches the copper wire cutting position.

[0052] The copper wire pushing and arranging mechanism 9, as shown in Figure 2 , is used to arrange four turns of copper wire side by side on the fender sleeve and hold the copper wire down to the welding position. It is composed of a driving module 90, a pushing actuator 91, and a mechanically linked holding and pressing head 92.

[0053] The drive module 90 and the poking actuator 91 are driven by a servo motor, and the belt conveyor 10 provided with a tensioning wheel is responsible for the axial precise positioning of the whole wire arranging mechanism.

[0054] The mechanically linked clamping and pressing head 92 has an internal structure as shown in Figures 3 to 7 When the copper wire enters the clamping and pressing head 92 under the pushing of the copper wire feeding mechanism 5, the copper wire pushes the sliding block 901 to move. The movement triggers the pressing link mechanism 900, such as a toggle mechanism or an inclined sliding block mechanism, through mechanical coupling, such as a pushing pin or an inclined surface, which converts the lateral displacement of the sliding block 901 into the linear motion of the whole clamping and pressing head 92 downward, so as to actively press the copper wire on the wave-proof sleeve. A return spring can be arranged inside the sliding block 901. When the copper wire is cut, the sliding block 901 is reset under the action of the spring force, and the pressing link mechanism 900 is reset, and the clamping and pressing head 92 is lifted.

[0055] As a further explanation of the present example, referring to Figures 4 to 7 , the clamping and pressing head 92 further comprises a sleeve 95, which is sleeved on one end of the base 97, and the base 97 is spring-connected with the sleeve 95, and the other end of the base 97 is fixed with two pressing plates 94, which are arranged at an angle.

[0056] The present application can realize the pressing action of the clamping and pressing head 92 by using two pressing plates 94 as the clamping part of the clamping and pressing head 92, and spring-connecting the base 97 with the sleeve 95.

[0057] As a further explanation of the present example, referring to Figures 3 to 7 , the poking actuator 91 comprises a belt conveyor 10 provided with a tensioning wheel, the lower surface of the belt conveyor 10 is embedded with a support plate 11, the support plate 11 is connected with a sleeve 95, the belt conveyor 10 is arranged on a mounting frame 13, and the mounting frame 13 is fixed with the rack 1.

[0058] It should be noted that the copper wire needs to be wound on the wave-proof sleeve for four turns and arranged side by side. After each turn of the copper wire, the present application drives the belt conveyor 10 to rotate by the servo motor, cooperates with the copper wire clamped by the clamping and pressing head 92, and drives the copper wire to move a distance greater than or equal to the diameter of the copper wire, so as to realize the side-by-side arrangement of four turns of copper wire.

[0059] Among them, the support plate 11 can provide good rigidity to avoid the collapse of the belt.

[0060] As a further explanation of the present example, referring to Figures 4 to 7The lower pressing link mechanism 900 comprises a first support rod 902 fixed with the sliding block 901, the first support rod 902 is inserted into a slant hole 904 of a second support rod 903, and the second support rod 903 is fixed with the base 97.

[0061] The copper wire is pressed onto the wave-proof sleeve by the whole clamping lower pressing head 92, and the soldering is performed by the tin gun.

[0062] The second support rod 903 is parallel with the pressing plate 94, and the moving direction of the sliding block 901 is perpendicular to the length direction of the second support rod 903.

[0063] When the copper wire is not between the two sliding blocks 901, the distance between the two sliding blocks 901 is smaller than the diameter of the copper wire, the sliding block 901 is compressed and moved when the copper wire is conveyed to the position, and the copper wire is continuously moved to the welding point after the sliding block 901 is moved.

[0064] As a further explanation of the present example, refer to Figure 7 The channel 93 is provided with a square frame 96, the sliding block 901 moves in the square frame 96, and the square frame 96 is fixedly connected with the sleeve 95 through a connecting rod.

[0065] The square frame 96 is provided as a bearing mechanism of the sliding block 901, the square frame 96 is located in the channel 93 and does not move, does not hinder the lowering of the base 97, and moves along the square frame 96 when the sliding block 901 is pressed, so that the pressing plate 94 can be pressed, and the synchronous clamping and pressing actions are realized.

[0066] The channel 93 is provided on the pressing plate 94 and is larger than the square frame 96.

[0067] The sliding block 901 is provided with a limiting device between the sliding block 901 and the square frame 96, for example, a spring or a clamping block, so that the sliding block 901 can move in a limited area.

[0068] As a further explanation of the present example, refer to Figures 3 to 7The support plate 11 has a track 20, the sleeve 95 is disposed in the track 20 and moves along it, the sleeve 95 is fixed to the guide sleeve 21 with internal threads, the guide sleeve 21 is threadedly connected to the lead screw 22, and the lead screw 22 is driven by a servo motor.

[0069] This invention drives the lead screw 22 to rotate via a servo motor, which in turn causes the guide sleeve 21 to move the sleeve 95 back and forth. The clamping pressure head 92 straightens the copper wire, eliminating the bending of the copper wire caused by the movement, and ensuring that the wire is in a roughly straight state when used next time, without affecting clamping and welding.

[0070] The coupling positions of track 20 and sleeve 95 are both set in a dovetail shape.

[0071] For further explanation of this example, refer to Figure 3 and Figure 6 The mounting bracket 13 has a fixed limiting pressure head 23, which is aligned with the clamping lower pressure head 92, with a flexible copper wire area between them.

[0072] This invention defines a bending region and determines the bending point of the copper wire, which facilitates the straightening of the copper wire.

[0073] Combination Figures 1 to 7 The system's workflow is as follows:

[0074] 1. Feeding and securing: The aviation plug is manually inserted into the double-acting pneumatic chuck assembly 4 and initially clamped. The anti-wave sleeve feeding and cutting mechanism 3 automatically feeds and cuts the material, sending the anti-wave sleeve to the tail of the workpiece, where the double-acting pneumatic chuck assembly 4 performs a secondary pneumatic clamping.

[0075] 2. Initial Welding: The copper wire feeding mechanism 5 activates, feeding the copper wire into the clamping and pressing head 92 of the copper wire guiding mechanism 9, triggering its downward pressure to press the starting end of the copper wire firmly onto the anti-surge sleeve. Subsequently, the soldering mechanism 6 descends, completing the initial spot welding. After welding is complete, the welding torch is raised.

[0076] 3. Indexing, winding, and soldering: After the PLC controls the chuck to rotate 90° and pauses, the soldering mechanism 6 descends again to perform soldering. This "rotation-pause-soldering" process is repeated to complete 4 solder points in one revolution.

[0077] 4. Stepping cable laying: After one revolution, the PLC controls the copper wire to move the cable laying mechanism 9, and the clamping pressure head 92 clamps the copper wire and moves it axially by a spacing equal to one copper wire diameter.

[0078] 5. Cyclic operation: Repeat steps 3 and 4 to perform subsequent wrapping and soldering until four wraps are achieved. A warm air blower is added to blow molten solder to cover the four solder joint areas.

[0079] 6. Cutting and straightening: after all the winding is completed, the copper wire cutting mechanism 8 is actuated to cut the copper wire. Subsequently, the PLC controls the servo motor to drive the clamping and pressing head 92 to move along the axial direction for several times of short-stroke high-speed reciprocating motion, and the bent copper wire is straightened by the slight contact friction between the clamping and pressing head 92 and the end of the copper wire.

Claims

1. A wave-damping sleeve assembly system, comprising a frame (1), a control unit (2), a wave-damping sleeve feeding and cutting mechanism (3), a double-acting pneumatic chuck assembly (4), a copper wire feeding mechanism (5), a soldering mechanism (6), and a copper wire cutting mechanism (8), characterized in that, Also includes: The copper wire actuation mechanism (9) includes a drive module (90) mounted on the frame (1). A toggle actuator (91) is installed on the drive module (90); A clamping pressure head (92) is connected to the output end of the toggle actuator (91). The clamping pressure head (92) is internally provided with: A pressure plate (94) with a channel (93) is formed; A pair of symmetrically arranged, slidable sliders (901) within the channel (93); A pressing linkage mechanism (900) has its input end coupled to the slider (901) and its output end connected to the base (97) of the clamping pressing head (92). The copper wire passes through the channel and triggers the downward linkage mechanism (900) by pushing the slider (901) to move, driving the clamping downward head (92) to move downward relative to the toggle actuator (91), thereby clamping the copper wire and pressing it against the surface of the anti-wave sleeve. The clamping pressure head (92) also includes a sleeve (95), which is fitted onto one end of the base (97). The base (97) and the sleeve (95) are spring-connected. The other end of the base (97) is fixed to two pressure plates (94), which are set at an angle. The actuating actuator (91) includes a belt conveyor (10) equipped with a tensioning wheel, a support plate (11) is embedded on the lower surface of the belt conveyor (10), a sleeve (95) is connected on the support plate (11), the belt conveyor (10) is mounted on a mounting frame (13), and the mounting frame (13) is fixed to the frame (1); The pressing linkage mechanism (900) includes a first support rod (902), which is fixed to the slider (901). The first support rod (902) is inserted into the inclined hole (904) of the second support rod (903), and the second support rod (903) is fixed to the base (97). A square frame (96) is provided in the channel (93), and a slider (901) that moves along the square frame (96) is provided in the square frame (96). The square frame (96) and the sleeve (95) are fixedly connected by a connecting rod.

2. The wave-damping equipment system according to claim 1, characterized in that: The support plate (11) has a track (20), the sleeve (95) is disposed in the track (20) and moves along it, the sleeve (95) is fixed to the guide sleeve (21) with internal thread, the guide sleeve (21) is threaded to the lead screw (22), and the lead screw (22) is driven by a servo motor.

3. The wave-damping equipment system according to claim 2, characterized in that: The mounting bracket (13) has a fixed limiting pressure head (23) which is aligned with the clamping pressure head (92), and the area between them is a flexible copper wire area.

4. The wave-damping equipment system according to claim 3, characterized in that: The soldering mechanism (6) includes a solder wire feeder, a constant temperature soldering gun, and a soldering gun lifting mechanism (7). The soldering gun lifting mechanism (7) is composed of a servo motor, a ball screw, and a linear guide.

5. A wave-damping kit assembly system according to claim 4, characterized in that: The dual-action pneumatic chuck assembly (4) includes a pneumatic chuck, a servo motor, and a synchronous belt and synchronous pulley transmission pair connecting the servo motor and the pneumatic chuck.

6. A wave-damping kit assembly system according to claim 5, characterized in that: The copper wire feeding mechanism (5) includes a V-groove wire feeding wheel driven by a stepper motor and a bearing clamping wheel.

Images