A relay processing and testing production line

Abstract

This utility model relates to a relay processing and testing assembly line. The coil lead processing fixture includes a frame, a fixture platform, and a rotary drive module. Multiple coil frame carriers are arranged circumferentially on the fixture platform. Along the outer periphery of the frame, an industrial loading and unloading unit, a flux soaking unit, a lead tinning unit, and a lead bending unit are sequentially arranged, respectively for loading coil frame workpieces, unloading bent workpieces, soaking coil leads in flux, tinning leads, and bending leads to obtain bent workpieces. The relay testing fixture includes a worktable and a processing track on it, a bent workpiece feeding unit, an armature feeding unit, an armature assembly unit, a riveting unit, a flipping unit, a lead detection unit, and a transfer unit. The armature assembly unit assembles the armature and yoke; the riveting unit rivets; the flipping unit flips the riveted relay workpiece; and the lead detection unit detects the leads. This assembly line achieves fully automated relay production, improving production efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of relay tooling technology, and in particular to a relay processing and testing assembly line. Background Technology

[0002] Relays, as commonly used automatic switching devices, can control the switching of large currents with small currents and are widely used in various automated control circuits. Existing DC relays, such as those shown in patent application number 2021112814640, disclose a monostable relay capable of withstanding extremely large short-circuit currents. The main magnetic circuit includes an armature, a yoke, a coil, and an iron core. The armature is movably mounted on the upper end of the yoke and can be driven up and down by electromagnetic force. The contact components include a normally open stationary reed assembly, a normally closed stationary reed assembly, and a moving reed assembly that moves synchronously with the armature. The switching of the circuit is achieved by opening and closing the moving and stationary reeds. The normally open and normally closed stationary reed assemblies are fixed on the coil frame. The coil frame is equipped with a pair of coil leads, the yoke is provided with yoke leads, the stationary spring is provided with stationary spring leads, and the coil leads include coil lead one and coil lead two extending in opposite directions. Coil lead one is used for coil winding. The yoke leads, stationary spring leads and coil lead two extend in the same direction. After processing, they need to be inserted into the corresponding PCB pads to realize the electrical connection between the relay and the external circuit.

[0003] During assembly, the coil, stationary spring, iron core, yoke, and coil lead in a straight position are first assembled onto the coil frame, and the coil wire end is wound around the first coil lead to form the coil frame workpiece. Then, the coil wire end is soldered to the first coil lead. Next, while keeping the coil frame horizontal, the first coil lead, which is vertically downward, is bent towards the coil side to a near-horizontal position to obtain the bent workpiece. Then, the armature is assembled onto the bent workpiece. Finally, the second coil lead, yoke lead, and stationary spring lead are uniformly inspected. Only after passing the inspection can the workpiece be shipped out of the factory.

[0004] Currently, the processing and production of this type of relay relies entirely on manual, step-by-step operations. Each step, including coil frame preparation, wire soldering, pin bending, armature assembly, and pin inspection, is performed manually. This manual operation mode has significant drawbacks: the overall process is fragmented, with low automation, cumbersome steps, and low production efficiency. Furthermore, manual soldering is prone to problems such as incomplete soldering, false soldering, and uneven soldering. Manual pin bending relies entirely on subjective feel, easily leading to inconsistent bending height and angle, resulting in dimensional defects such as skewing and height deviations. Subsequent pin inspection relies on visual inspection, which is highly susceptible to missed or false inspections, resulting in inconsistent yield rates within the same batch and failing to meet the quality requirements of large-scale mass production. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art by providing a relay processing and testing line that realizes fully automated processing of relays from coil pin soldering, pin bending, armature assembly to pin testing, effectively improving production efficiency and processing accuracy, ensuring product yield, and meeting the needs of large-scale mass production.

[0006] The technical solution of this utility model is: a relay processing and testing assembly line, including coil pin processing fixtures and relay testing fixtures;

[0007] The coil lead processing fixture includes a frame, a fixture platform mounted on the frame, and a rotary drive module for driving the fixture platform to rotate. The fixture platform is provided with multiple coil frame carriers in the circumferential direction. The coil frame carriers are provided with gripper components. The gripper components are used to clamp and position the coil frame workpieces, so that the coil frame is in a horizontal state and the coil lead extends vertically downward.

[0008] The following are sequentially arranged along the outer periphery of the tooling platform on the upper edge of the frame:

[0009] An industrial loading and unloading unit is used for loading coil frame workpieces and unloading bent workpieces.

[0010] Flux soaking unit, the flux soaking unit is used to soak the coil lead one in flux;

[0011] The lead-out tinning unit is used to tin the lead-out of the coil after it has been immersed in the tin.

[0012] Lead-out bending unit, the lead-out bending unit is used to bend the vertically downward coil lead-out to a horizontal state to obtain the bent workpiece;

[0013] The relay testing fixture includes a workbench and a component mounted on the workbench:

[0014] The processing track is provided with a workpiece loading station after bending, an armature loading and assembly station, a riveting station, a flipping station, an inspection station and an inspection station in sequence.

[0015] The bending workpiece feeding unit is used to arrange the bending workpieces output from the coil pin processing fixture at equal intervals.

[0016] An armature feeding unit is used to arrange incoming armatures at equal intervals.

[0017] An armature assembly unit is used to assemble the armature of the armature feeding unit with the yoke of the bent workpiece on the processing track.

[0018] A riveting unit is used to rivet and fix the armature on the processing track to the yoke of the bent workpiece;

[0019] A flipping unit is used to flip the relay workpiece that has been riveted on the processing track so that the coil lead pin 2, the yoke pin and the stationary spring pin face downwards.

[0020] A pin detection unit is used to detect the coil lead pin 2, the yoke pin, and the stationary spring pin;

[0021] The material transfer unit is used to drive the bent workpiece to move sequentially on the processing track.

[0022] By adopting the above technical solution, an integrated automated production line operation can be realized, which includes relay coil pin processing, workpiece assembly and riveting, posture flipping, and pin detection.

[0023] The coil lead processing fixture uses a rotary fixture platform with multiple coil frame carriers for cyclic operation, which can realize the full automation of continuous workpiece feeding, flux soaking, lead tinning, and lead bending. The clamping jaws accurately hold and position the coil frame workpiece, ensuring uniform coil lead posture and consistent processing benchmarks. This effectively avoids quality defects such as lead offset, uneven tinning, and bending dimension deviation caused by manual operation, and significantly improves the accuracy of coil lead processing and product consistency.

[0024] The relay testing fixture uses a processing track to divide the work area into multi-station modular operation areas. Equally spaced bent workpieces are placed at the bent workpiece loading station, and then moved by a transfer unit to the armature loading and assembly station. The armature assembly unit then assembles the armatures, which are equally spaced on the armature feeding unit, with the yoke at the armature loading and assembly station. The transfer unit moves to the riveting station for riveting and fixing. After riveting, it moves to the flipping station, where the flipping unit flips it so that the pins face down. It then moves to the testing station, where the pin detection unit moves the relay workpiece to the testing station to check the straightness of the pins, thus filtering out relay workpieces with bent pins. This automated assembly and riveting of the armature and yoke effectively improves production efficiency and product quality.

[0025] A further feature of this utility model: the coil frame carrier of the coil pin processing fixture includes a carrier base, a carrier slide vertically slidable on the carrier base, and an elastic reset member disposed between the carrier slide and the carrier base, wherein the gripper is mounted on the carrier slide.

[0026] The lead-out tinning unit includes:

[0027] A tin bath, which is used to store molten tin and has an opening at the top;

[0028] A heating and temperature control component, which heats the solder bath and maintains a constant temperature for the molten solder.

[0029] The matching cylinder component extends its telescopic shaft and presses down the carrier slide of the coil frame carrier, causing the coil lead held by the gripper to move into the solder bath; the telescopic shaft of the matching cylinder component retracts, and the elastic reset component drives the carrier slide to move upward, causing the coil lead to exit the solder bath.

[0030] A slag removal assembly includes a tin bath cover, a first horizontal sliding drive module, and a first vertical sliding drive module. The tin bath cover is positioned above the opening of the tin bath, and one end of the tin bath cover is equipped with a tin scraper. The first vertical sliding drive module drives the tin bath cover to slide vertically, so that the tin bath cover drives the tin scraper to extend downward into the tin bath. The first horizontal sliding drive module drives the tin bath cover to slide horizontally, so that the tin bath cover drives the tin scraper to slide from one end of the tin bath to the other end, scraping and collecting the slag on the surface of the molten tin in the tin bath into the tin slag recovery tank. At the same time, the tin bath cover opens the opening of the tin bath.

[0031] By further configuring the above-mentioned components, a vertically sliding carrier slide, an elastic reset component, and a matching cylinder for the lead-pin tinning unit are incorporated. The cylinder's telescopic shaft presses down on the carrier slide to immerse the coil lead-pin in the solder bath. Upon retraction, the elastic reset component automatically resets the carrier slide, disengaging the lead from the solder bath. This ensures controllable tinning stroke and stable response, guaranteeing consistent tinning depth and duration for the coil lead-pin, avoiding uneven soldering, cold solder joints, and solder leakage issues caused by manual or fixed-station tinning. Simultaneously, the lead-pin tinning unit… The heating and temperature control component maintains a constant temperature in the solder bath, ensuring stable solder flow and further improving the soldering quality of the leads. The slag removal component controls the slag scraper to extend into the solder bath through the first vertical sliding drive module, and then the first horizontal sliding drive module drives the whole component to move horizontally. This can collect the oxidized slag on the surface of the solder bath into the slag recovery tank, reducing the poor soldering caused by slag adhering to the coil lead. During operation, the solder bath cover opens and closes simultaneously, which can reduce the evaporation of solder and heat loss, improve the working environment, and extend the service life of the solder bath.

[0032] A further feature of this invention: the lead bending unit of the coil lead processing fixture includes:

[0033] A coil frame positioning mechanism includes a positioning plate and a second horizontal sliding drive module. When the tooling platform drives the coil frame carrier to rotate to a position directly opposite the positioning plate, the second horizontal sliding drive module is used to drive the positioning plate to slide horizontally toward or away from the coil frame carrier to hold or release the coil frame workpiece.

[0034] A slanted push bending mechanism, comprising a slanted push plate and a tilting sliding drive module, wherein the tilting sliding drive module is used to drive the slanted push plate to tilt and slide, so as to push the vertically downward coil lead-out foot upward to a tilted downward state.

[0035] The upward bending mechanism includes a push plate and a second vertical sliding drive module. The second vertical sliding drive module is used to drive the push plate to slide vertically so as to push the inclined downward coil lead-out foot upward to a horizontal state.

[0036] With the above-mentioned further configuration, the lead-out bending unit adopts a step-by-step bending structure consisting of a coil frame positioning mechanism, a slanted push bending mechanism, and an upward push bending mechanism. After the tooling platform drives the coil frame carrier to rotate into position, the second horizontal sliding drive module drives the positioning plate to hold the coil frame workpiece, forming a reliable positioning constraint on the workpiece to prevent workpiece displacement and movement during bending, and ensuring the stability of the bending reference. First, the slanted push plate is driven by the slanted sliding drive module to slant and slide, initially pushing the vertically downward coil lead-out to an inclined state. Then, the top push plate is driven by the second vertical sliding drive module to push vertically, completing the final horizontal bending of the lead. The step-by-step bending method can avoid the problems of lead root cracking, skeleton damage, and lead deformation and springback caused by single strong bending. The bending forming angle is regular and the size is highly consistent, providing qualified semi-finished products for subsequent armature assembly, riveting, and lead inspection processes, improving the subsequent assembly accuracy and product qualification rate.

[0037] A further feature of this invention: the workpiece feeding unit of the relay detection fixture after bending includes:

[0038] A workpiece feeding track after bending, on which the workpiece after bending is conveyed along the X-axis;

[0039] A blocking cylinder is provided. Multiple blocking cylinders are equidistantly arranged along the conveying direction of the workpiece feeding track after bending and located at the downstream end of the workpiece feeding track after bending. The telescopic shaft of the blocking cylinder extends into the workpiece feeding track after bending to block and limit the movement of the workpiece after bending.

[0040] A photoelectric sensor is provided at the upstream end of the blocking cylinder, corresponding one-to-one with the blocking cylinder.

[0041] The bending workpiece feeding unit further includes a bending workpiece moving device, which is used to move the bending workpieces that are equidistantly arranged on the bending workpiece feeding track to the bending workpiece loading station on the processing track.

[0042] With the above-described further configuration, in the initial state, the first blocking cylinder extends to block the bent workpiece. When the first bent workpiece reaches the first blocking cylinder, the photoelectric sensor in front of the first blocking cylinder is triggered, and the first blocking cylinder retracts. After the first bent workpiece passes, the first blocking cylinder extends again to block the second bent workpiece. The first bent workpiece moves downstream and is blocked by the second blocking cylinder. When the photoelectric sensor in front of the second blocking cylinder is triggered, the second blocking cylinder retracts, and the first bent workpiece moves downstream and is blocked by the next blocking cylinder, and so on, until the bent workpiece reaches the last blocking cylinder. At the same time, subsequent bent workpieces are also blocked and released one by one until there is a bent workpiece upstream of each blocking cylinder, thus achieving an equidistant arrangement of the bent workpieces. The bent workpiece moving device clamps the equidistantly arranged bent workpieces and moves them to the bent workpiece loading station on the processing track.

[0043] A further feature of this invention: the armature feeding unit of the relay detection fixture includes:

[0044] An armature feeding track is provided, on which armatures are conveyed along the X-axis. At the downstream end of the armature feeding track, there are several permanent magnets that magnetically attract each other with a single armature. Adjacent permanent magnets are equidistantly arranged.

[0045] The second blocking cylinder is equipped with a blocking block. After the second blocking cylinder extends, the blocking block abuts against the armature feeding track to block and limit the armature conveyed from the upstream end.

[0046] A transfer block is connected to the telescopic shaft of a first cylinder, which drives the transfer block to move along the Z-axis. The first cylinder is also connected to the telescopic shaft of a second cylinder, which drives the first cylinder to move along the X-axis.

[0047] With the above-mentioned further configuration, the armature is conveyed through the armature feeding track and blocked and limited by the blocking block. Then, the second cylinder drives the transfer block to move along the X-axis to above the gap between the first and second armatures. Then, the first cylinder actuates to move the transfer block down and insert it into the gap between the first and second armatures. Then, the second blocking cylinder drives the blocking block to retract, and the second cylinder drives the transfer block to push the first armature downstream. After the first armature moves out, the second blocking cylinder actuates again to make the blocking block abut against the armature feeding track to block and limit the armature conveyed from upstream. When the armature moves downstream to the designated position, it will be automatically magnetically attracted and fixed by the permanent magnet, thereby achieving positioning.

[0048] A further feature of this invention: the armature assembly unit of the relay detection fixture includes:

[0049] The support is fixed to the workbench;

[0050] A clamping cylinder is used to clamp the armature on the armature feeding unit. The clamping cylinder is connected to the telescopic shaft of the third cylinder. The third cylinder is used to drive the clamping cylinder to move along the Z-axis. The third cylinder is connected to the telescopic shaft of the fourth cylinder. The fourth cylinder is used to drive the third cylinder to move along the Y-axis. The fourth cylinder is mounted on a bracket.

[0051] The clamping cylinder moves between the armature feeding unit and the armature loading and assembly station.

[0052] With the above-mentioned further configuration, the clamping cylinder is moved to the upper downstream of the armature feeding track by the drive of the third and fourth cylinders, and clamps the armature that is magnetically positioned by the permanent magnet. The clamped armature is then moved to the armature loading and assembly station and assembled with the yoke.

[0053] A further feature of this invention: the material transfer unit of the relay detection fixture includes:

[0054] A transfer plate is provided on one side of the processing track, and the transfer plate has several grooves at equal intervals on the side facing the processing track that match the bent workpiece.

[0055] The fifth cylinder has a telescopic shaft connected to a transfer plate for driving the transfer plate to move along the Y-axis. The fifth cylinder is connected to the telescopic shaft of the sixth cylinder, which is used to drive the fifth cylinder to move along the X-axis.

[0056] A clamping cylinder is mounted on a material transfer plate and corresponds to a groove, and is used to clamp and fix the workpiece after bending.

[0057] The transfer plate moves between the workpiece loading station after bending, the armature loading and assembly station, the riveting station, and the station to be flipped.

[0058] With the above-mentioned further configuration, when the transfer plate moves towards the processing track, the grooves are connected to the bent workpieces at each station on the processing track. Therefore, when the transfer plate moves downstream, it can drive the yoke to move downstream on the processing track, thereby moving between each station and effectively improving processing efficiency.

[0059] A further feature of this invention: the machining track of the relay detection fixture includes:

[0060] A fixed track is fixed to the worktable;

[0061] The movable track is slidably connected to the worktable and can be connected or separated from it. The movable track is connected to the telescopic shaft of the track moving cylinder.

[0062] The riveting unit is located on one side of the moving track in the direction of movement. After the moving track moves out, it cooperates with the riveting unit to perform riveting processing on the armature and yoke on the moving track.

[0063] With the above further configuration, when the bent workpiece moves to the movable track, the track moving cylinder is activated, driving the movable track to move towards the riveting unit. After the riveting unit finishes processing, the movable track is reset and connected to the fixed track. Moving the bent workpiece out of the fixed track via the movable track makes the arrangement of the riveting unit more convenient.

[0064] A further feature of this invention: the flipping unit of the relay detection fixture includes:

[0065] A clamping rotary cylinder is used to clamp and rotate a relay workpiece on the flipping station, and then place it on the inspection station.

[0066] The seventh cylinder has a telescopic shaft connected to a clamping rotary cylinder, and the seventh cylinder is used to drive the clamping rotary cylinder to move along the Y-axis.

[0067] The eighth cylinder has a telescopic shaft connected to the seventh cylinder, and the eighth cylinder is used to drive the seventh cylinder to move along the Z-axis.

[0068] The ninth cylinder has its telescopic shaft connected to the eighth cylinder, and the ninth cylinder is used to drive the eighth cylinder to move along the X-axis.

[0069] With the above-mentioned further configuration, after the clamping rotary cylinder picks up the relay workpiece, it can rotate the relay workpiece so that its pins face down, and then place it on the testing station, making the testing of the pins more convenient.

[0070] A further feature of this invention: the pin detection unit of the relay detection fixture includes:

[0071] The upper pressure plate is connected to the telescopic shaft of the tenth cylinder. The tenth cylinder is used to drive the upper pressure plate to move along the Z-axis. The upper pressure plate is located above the inspection station.

[0072] The eleventh cylinder, whose telescopic shaft is connected to the tenth cylinder, is used to drive the tenth cylinder to move along the X-axis;

[0073] The testing platform has a socket on its upper side corresponding to the coil lead pin 2, the yoke pin and the stationary spring pin. The testing platform is connected to the telescopic shaft of the testing cylinder, which is used to drive the testing platform to move along the Z-axis.

[0074] The processing track at the testing station is provided with openings for the coil lead-out pin 2, the yoke pin and the stationary spring pin to pass through downwards, and the testing platform is located below the openings.

[0075] With the above-mentioned further settings, the upper pressure plate presses firmly against the upper side of the relay workpiece to prevent the relay workpiece from moving. After the test platform rises, if the coil lead 2, yoke lead, and stationary spring lead of the relay workpiece are in a vertically downward state, they can be smoothly inserted into the opening of the test platform, and the test platform can move into place. However, if the lead of the relay workpiece is bent or bent, it cannot be inserted into the opening. At this time, the test platform will be blocked and cannot rise to the right position. The extension action of the test cylinder will be resisted, so a signal will be sent to indicate that the current relay workpiece is a defective product, thus realizing the detection of the straightness of the relay workpiece lead. Attached Figure Description

[0076] Figure 1 This is a top view of the structure of a specific embodiment of the present utility model;

[0077] Figure 2 This is a top view of the coil pin processing fixture structure according to a specific embodiment of the present utility model;

[0078] Figure 3 This is a structural diagram of the tooling platform according to a specific embodiment of the present utility model;

[0079] Figure 4 This is a structural diagram of the lead-out tin-dip unit according to a specific embodiment of the present invention;

[0080] Figure 5 This is a structural diagram of the lead-out bending unit of a specific embodiment of this utility model;

[0081] Figure 6 This is a top view of the relay testing fixture structure according to a specific embodiment of the present utility model;

[0082] Figure 7 This is a top view of the structure of the machining track in this utility model;

[0083] Figure 8 This is a top view of the armature feeding unit in this utility model;

[0084] Figure 9 This is a front view of the armature assembly unit in this utility model;

[0085] Figure 10 This is a front view of the pin detection unit in this utility model;

[0086] Figure 11 This is a schematic diagram of the structure of the testing platform in this utility model.

[0087] In the diagram: Coil pin processing fixture 1, frame 10, fixture platform 11, rotary drive module 12, coil frame carrier 13, carrier base 131, carrier slide 132, elastic reset component 133, gripper component 14, industrial loading and unloading handling unit 15, flux soaking unit 16, lead tinning unit 17, solder bath 171, matching cylinder component 173, slag removal assembly 174, solder bath cover 1741, first horizontal sliding drive module Group 1742, First vertical sliding drive module 1743, Solder scraper 1744, Solder dross recovery tank 175, Lead bending unit 18, Coil frame positioning mechanism 181, Positioning plate 1811, Second horizontal sliding drive module 1812, Inclined push bending mechanism 182, Inclined push plate 1821, Tilt sliding drive module 1822, Upward push bending mechanism 183, Top push plate 1831, Second vertical sliding drive module 1832;

[0088] 2. Relay testing fixture; 20. Workbench; 21. Machining track; 210. Bending workpiece loading station; 211. Armature loading and assembly station; 212. Riveting station; 213. Turning station; 214. Testing station; 215. Testing station; 216. Fixed track; 217. Movable track; 218. Track moving cylinder; 219. Hole opening; 22. Bending workpiece feeding unit; 221. Bending workpiece feeding track; 222. Blocking cylinder one; 223. Photoelectric sensor; 223. Armature feeding unit; 231. Armature feeding track; 232. Permanent magnet; 233. Blocking cylinder two; 234. Blocking block. 4. Transfer block 235, first cylinder 236, second cylinder 237, armature assembly unit 24, bracket 241, clamping cylinder 242, third cylinder 243, fourth cylinder 244, riveting unit 25, flipping unit 26, clamping rotation cylinder 261, seventh cylinder 262, ninth cylinder 264, pin detection unit 27, upper pressure plate 271, tenth cylinder 272, eleventh cylinder 273, detection platform 274, insertion hole 2741, detection cylinder 275, transfer unit 28, transfer plate 281, groove 2811, fifth cylinder 282, clamping cylinder 284. Detailed Implementation

[0089] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0090] like Figure 1-11 As shown, the present invention provides a relay processing and testing assembly line, which includes a coil pin processing fixture 1 and a relay testing fixture 2.

[0091] The coil lead processing fixture 1 includes a frame 10, a fixture platform 11 mounted on the frame 10, and a rotary drive module 12 for driving the fixture platform 11 to rotate. The fixture platform 11 has multiple coil frame carriers 13 arranged in the circumferential direction. Each coil frame carrier 13 is equipped with a gripper 14, which is a pneumatic gripper. The gripper 14 is used to clamp and position the coil frame workpiece, so that the coil frame is in a horizontal state and the coil lead extends vertically downward. The output end of the rotary drive module is connected to the fixture platform for driving the fixture platform to perform intermittent rotary indexing motion, such as a combination of an indexing turntable drive motor and a divider, which can stably drive the fixture platform to rotate intermittently at a set angle.

[0092] The following are sequentially arranged along the outer periphery of the tooling platform 11 on the upper edge of the frame 10:

[0093] Industrial loading and unloading handling unit 15 is used for loading coil frame workpieces and unloading bent workpieces. The industrial loading and unloading handling unit can be an industrial robot or a servo transfer module with a gripper structure to complete automatic loading and unloading, replace manual operation, and improve the automation level of the production line.

[0094] The flux immersion unit 16 is used to immerse the lower end of the coil lead-out pin in flux. Pre-coating with flux can remove the oxide layer on the surface of the lead-out pin, improve the firmness of subsequent soldering, and avoid the problem of poor soldering and detachment. The flux immersion unit is a conventional design. For example, if rosin is used for immersion, rosin is filled in a material tank. During immersion, the coil frame carrier is lowered by the drive mechanism so that the lower end of the coil lead-out pin is immersed in the rosin. After immersion, it is lifted and reset to complete the fluxing process. Alternatively, the material tank can be lifted by the drive mechanism.

[0095] Lead-in tinning unit 17 is used to perform tinning operation on the lower end of the coil lead-in after fluxing treatment;

[0096] Specifically, the coil frame carrier 13 includes a carrier base 131, a carrier slide 132 vertically slidably disposed on the carrier base 131, and an elastic reset member 133 disposed between the carrier slide 132 and the carrier base 131. The elastic reset member is a tension spring used to drive the carrier slide to slide upward and reset. The gripper 14 is mounted on the carrier slide 132.

[0097] The lead-out tin-dip unit 17 includes:

[0098] A tin bath 171 is used to store molten tin, and an opening is provided at the upper end;

[0099] The heating and temperature control component adopts a conventional electric heating rod combined with a temperature sensor for temperature control structure, which heats the solder bath 171 and keeps the temperature of the molten solder constant, keeping the molten solder in the solder bath in a molten liquid state.

[0100] The slag removal assembly 174 includes a tin bath cover 1741, a first horizontal sliding drive module 1742, and a first vertical sliding drive module 1743. The tin bath cover 1741 is positioned above the opening of the tin bath 171, and one end of the tin bath cover 1741 is provided with a tin scraper 1744. The first vertical sliding drive module 1743 is used to drive the tin bath cover 1741 to slide vertically, so that the tin bath cover... 1741 drives the solder scraper 1744 to extend downward into the solder bath 171; the first horizontal sliding drive module 1742 is used to drive the solder bath cover 1741 to slide horizontally, so that the solder bath cover 1741 drives the solder scraper 1744 to slide from one end of the solder bath 171 to the other end, scraping and collecting the slag on the surface of the molten solder in the solder bath 171 into the slag recovery tank 175, and at the same time the solder bath cover 1741 is removed to open the opening of the solder bath 171.

[0101] After the slag removal component removes the slag from the surface of the molten solder, the telescopic shaft of the matching cylinder 173 extends, pressing down the carrier slide 132 of the coil frame carrier 13. This causes the coil lead held by the gripper 14 to move down and into the molten solder bath 171 with the opening to immerse in the molten solder. The immersion depth of the lead can be precisely controlled by adjusting the downward stroke, ensuring that the immersion size of the workpieces in the same batch is consistent. When the telescopic shaft of the matching cylinder 173 retracts, the elastic reset component 133 drives the carrier slide 132 to move up, and the coil lead exits the molten solder bath 171. The immersion operation is completed, and the molten solder bath cover is reset to cover the opening of the molten solder bath again, reducing the contact area between the molten solder and the air, slowing down the oxidation of the molten solder, and extending the service life of the molten solder.

[0102] Lead-out bending unit 18, which is used to bend a vertically downward coil lead-out to a horizontal state to obtain a bent workpiece; specifically, the lead-out bending unit 18 includes:

[0103] The coil frame positioning mechanism 181 includes a positioning plate 1811 and a second horizontal sliding drive module 1812. When the tooling platform 11 drives the coil frame carrier 13 to rotate to a position directly opposite the positioning plate 1811, the second horizontal sliding drive module 1812 is used to drive the positioning plate 1811 to slide horizontally toward or away from the coil frame carrier 13 to hold or release the coil frame workpiece, avoid workpiece displacement and shaking during bending, and ensure bending dimensional accuracy.

[0104] The inclined push bending mechanism 182 includes an inclined push plate 1821 and an inclined sliding drive module 1822. The inclined push plate is connected to the output end of the inclined sliding drive module. The inclined sliding drive module 1822 is used to drive the inclined push plate 1821 to slide obliquely, so as to push the vertically downward coil lead-out foot upward to the oblique downward state, thereby completing one bend.

[0105] The upward bending mechanism 183 includes a push plate 1831 and a second vertical sliding drive module 1832. The push plate is connected to the output end of the second vertical sliding drive module. The second vertical sliding drive module 1832 is used to drive the push plate 1831 to slide vertically, so as to push the inclined downward coil lead to a horizontal state, complete the secondary bending and forming of the coil lead, and finally obtain the lead bending shape that meets the processing requirements. The coil lead does not necessarily have to be completely horizontal. It can be adjusted to a preset tilt angle according to the actual processing requirements. The two bending actions are coordinated and performed step by step. The force is uniform and controllable, the bending and forming accuracy is high, and problems such as lead wire breakage and bending angle deviation are not easy to occur.

[0106] The aforementioned sliding drive module can adopt a conventional linear drive structure available on the market, such as a cylinder, an electric slide, or achieve vertical drive through a motor in conjunction with a lead screw and slider.

[0107] Initially, the tooling platform is positioned at the initial indexing position. The industrial loading and unloading unit picks up the coil frame workpiece to be processed and transfers it to the coil frame carrier at the current station, where it is clamped and positioned by the grippers. Then, driven by the rotary drive module, the tooling platform rotates one indexing angle, delivering the coil frame to be processed to the flux immersion unit station. The drive mechanism at this station lifts the flux tank, immersing the lower end of the coil lead into the flux solution for fluxing. After the fluxing process, the flux tank lowers and resets. The tooling platform then... Rotate one division angle to send the completed soldering workpiece to the lead immersion unit station. The slag removal component pre-completes a slag removal operation, scraping the slag on the surface of the molten solder into the slag recovery tank. At the same time, the slag tank cover moves out to open the slag tank opening. Then, the telescopic shaft of the matching cylinder extends and presses down on the carrier slide of the corresponding coil frame carrier, overcoming the pulling force of the elastic reset component and driving the gripper to move down, so that one end of the coil lead is immersed in the slag tank for the set time. After the immersion is completed, the telescopic shaft of the matching cylinder retracts, and the elastic reset component... The carrier slide is pulled up and reset, the lead-out foot exits the solder bath, and then the solder bath cover slides back to cover the opening, reducing solder oxidation. The fixture platform then rotates one indexing angle, sending the solder-soaked workpiece to the lead-out foot bending unit. The second horizontal sliding drive module of the coil frame positioning mechanism drives the positioning plate to extend and press against the coil frame workpiece. Then, the inclined sliding drive module of the inclined bending mechanism drives the inclined push plate to extend obliquely, pushing the vertically downward lead-out foot to an obliquely downward position, completing a pre-bend. Next, the second vertical sliding drive module of the upward bending mechanism drives the top push plate to extend upward, pushing the obliquely downward lead-out foot to a preset horizontal position, completing a secondary bending. Finally, the fixture platform rotates another indexing angle, sending the bent workpiece back to the loading / unloading station. The grippers release their grip on the workpiece, and the industrial loading / unloading unit removes the finished workpiece and simultaneously places a new workpiece to be processed. The finished relay coil frame is then transferred to the relay testing fixture.

[0108] The relay testing fixture 2 includes a workbench 20 and a device mounted on the workbench 20:

[0109] The processing track 21 is provided with a workpiece loading station 210 after bending, an armature loading and assembly station 211, a riveting station 212, a flipping station 213, an inspection station 214 and an inspection station 215 in sequence.

[0110] The bending workpiece feeding unit 22 is used to arrange the bending workpieces output from the coil pin processing fixture 1 at equal intervals.

[0111] The armature feeding unit 23 is used to arrange the incoming armatures at equal intervals;

[0112] The armature assembly unit 24 is used to assemble the armature of the armature feeding unit 23 with the yoke of the bent workpiece on the processing track 21.

[0113] The riveting unit 25 is used to rivet and fix the armature on the processing track 21 to the yoke of the bent workpiece.

[0114] The flipping unit 26 is used to flip the relay workpiece that has been riveted on the processing track 21 so that the coil lead pin 2, the yoke pin and the stationary spring pin face downwards.

[0115] Pin detection unit 27, the pin detection unit 27 is used to detect the coil lead pin 2, the yoke pin and the stationary spring pin;

[0116] Material transfer unit 28 is used to drive the bent workpiece to move sequentially on the processing track 21.

[0117] After bending, the workpiece is placed at the workpiece loading station and moved to the armature loading and assembly station by the transfer unit. Then, the armature assembly unit assembles the armatures, which are equidistantly placed on the armature feeding unit, with the yoke at the armature loading and assembly station. The transfer unit moves to the riveting station and rivets the workpieces. After riveting, the workpiece is moved to the flipping station and flipped so that the coil lead pin 2, the yoke pin, and the stationary spring pin face downwards. Then, the workpiece is moved to the inspection station and the pin inspection unit moves the relay workpieces at the inspection station to inspect the straightness of the pins, thereby screening out relay workpieces with bent pins.

[0118] Specifically, the workpiece feeding unit 22 after bending includes:

[0119] The workpiece feeding track 221 after bending is used to transport the bent workpiece along the X-axis.

[0120] A blocking cylinder 222 is provided. Multiple blocking cylinders 222 are equidistantly arranged along the conveying direction of the bent workpiece feeding track 221 and located at the downstream end of the bent workpiece feeding track 221. The telescopic shaft of the blocking cylinder 222 extends into the bent workpiece feeding track 221 to block and limit the movement of the bent workpiece.

[0121] Photoelectric sensor 223, which is disposed at the upstream end of blocking cylinder 222 in a one-to-one correspondence with blocking cylinder 222;

[0122] The bending workpiece feeding unit 22 further includes a bending workpiece moving device, which is used to move the bending workpieces arranged at equal intervals on the bending workpiece feeding track 221 to the armature loading and assembly station 211 of the processing track 21.

[0123] Initially, the first blocking cylinder extends to obstruct the bent workpiece. When the first bent workpiece reaches the first blocking cylinder, the photoelectric sensor in front of the first blocking cylinder is triggered, and the first blocking cylinder retracts. After the first bent workpiece passes, the first blocking cylinder extends again to obstruct the second bent workpiece. The first bent workpiece moves downstream but is blocked by the second blocking cylinder. When the photoelectric sensor in front of the second blocking cylinder is triggered, the second blocking cylinder retracts, and the first bent workpiece moves downstream but is blocked by the subsequent blocking cylinder, and so on, until... After bending, the workpiece moves to the last blocking cylinder; simultaneously, subsequent bent workpieces are blocked and released one by one until there is a bent workpiece upstream of each blocking cylinder, thus achieving equidistant arrangement of the bent workpieces; the bent workpiece moving device clamps the equidistantly arranged bent workpieces and moves them to the bent workpiece loading station on the processing track; the structure of the bent workpiece moving device is similar to that of the armature assembly unit, which clamps the equidistantly arranged bent workpieces and then places them at the bent workpiece loading station on the processing track. This is conventional technology for those skilled in the art and will not be described in detail here.

[0124] Specifically, the armature feeding unit 23 includes:

[0125] An armature feeding track 231 is provided, on which armatures are conveyed along the X-axis. At the downstream end of the armature feeding track 231, there are a number of permanent magnets 232 that magnetically attract each other with a single armature. Adjacent permanent magnets 232 are equidistantly arranged.

[0126] Blocking cylinder 233, the blocking cylinder 233 is provided with a blocking block 234. After the blocking cylinder 233 extends, the blocking block 234 abuts against the armature feeding track 231 to block and limit the armature conveyed from the upstream end.

[0127] The material transfer block 235 is connected to the telescopic shaft of the first cylinder 236. The first cylinder 236 is used to drive the material transfer block 235 to move along the Z-axis. The first cylinder 236 is connected to the telescopic shaft of the second cylinder 237. The second cylinder 237 is used to drive the first cylinder 236 to move along the X-axis.

[0128] The armature is conveyed via the armature feed track and blocked and limited by the blocking block. Then, the second cylinder drives the transfer block to move along the X-axis to above the gap between the first and second armatures. Then, the first cylinder moves the transfer block down and inserts it into the gap between the first and second armatures. Then, the second blocking cylinder moves the blocking block back, and the second cylinder moves the transfer block to push the first armature downstream. After the first armature moves out, the second blocking cylinder moves again to make the blocking block abut against the armature feed track to block and limit the conveyed armature. When the armature moves downstream to the designated position, it will be automatically magnetically attracted and fixed by the permanent magnet, thus achieving positioning.

[0129] Specifically, the armature assembly unit 24 includes:

[0130] Support 241, which is fixed on the workbench 20;

[0131] A clamping cylinder 242 is used to clamp the armature on the armature feeding unit 23. The clamping cylinder 242 is connected to the telescopic shaft of the third cylinder 243. The third cylinder 243 is used to drive the clamping cylinder 242 to move along the Z-axis. The third cylinder 243 is connected to the telescopic shaft of the fourth cylinder 244. The fourth cylinder 244 is used to drive the third cylinder 243 to move along the Y-axis. The fourth cylinder 244 is mounted on the bracket 241.

[0132] The clamping cylinder 242 moves between the armature feeding unit 23 and the armature loading and assembly station 211.

[0133] Driven by the third and fourth cylinders, the clamping cylinder moves to the upper part of the downstream end of the armature feeding track and clamps the armature that is magnetically positioned by the permanent magnet. After clamping, the armature moves to the armature loading and assembly station and is assembled with the yoke.

[0134] Specifically, the transfer unit 28 includes:

[0135] The transfer plate 281 is located on one side of the processing track 21. The transfer plate 281 has a plurality of grooves 2811 at equal intervals on the side facing the processing track 21, which match the workpiece after bending.

[0136] The fifth cylinder 282 has a telescopic shaft connected to the transfer plate 281 for driving the transfer plate 281 to move along the Y-axis. The fifth cylinder 282 is connected to the telescopic shaft of the sixth cylinder, which is used to drive the fifth cylinder 282 to move along the X-axis.

[0137] A clamping cylinder 284 is provided on the material transfer plate 281 and corresponds to the groove 2811, and is used to clamp and fix the workpiece after bending.

[0138] The transfer plate 281 moves between the workpiece loading station 210 after bending, the armature loading and assembly station 211, the riveting station 212, and the station to be flipped 213.

[0139] When the transfer plate moves toward the processing track, the grooves are connected to the yokes at each station on the processing track. Therefore, the transfer plate can drive the yokes to move downstream on the processing track, thus moving between the stations.

[0140] Specifically, the processing track 21 includes:

[0141] Fixed track 216, the fixed track 216 is fixed on the worktable 20;

[0142] The movable track 217 is slidably connected to the worktable 20 and is connected to or separated from the fixed track 216. The movable track 217 is connected to the telescopic shaft of the track moving cylinder 218.

[0143] The riveting unit 25 is located on one side of the moving track 217 in the direction of movement. After the moving track 217 moves out, it cooperates with the riveting unit 25 to perform riveting processing on the armature and yoke on the moving track 217.

[0144] When the bent workpiece moves onto the movable track, the track moving cylinder is activated, driving the movable track toward the riveting mechanism. After the riveting mechanism completes its processing, the movable track resets and connects with the fixed track, allowing the bent workpiece to be moved out of the fixed track via the movable track.

[0145] Specifically, the flipping unit 26 includes:

[0146] A clamping rotary cylinder 261 is used to clamp and rotate the relay workpiece on the flip station 213, and then place it on the inspection station 214.

[0147] The seventh cylinder 262 has a telescopic shaft connected to the clamping rotary cylinder 261, and the seventh cylinder 262 is used to drive the clamping rotary cylinder 261 to move along the Y-axis.

[0148] The eighth cylinder has a telescopic shaft connected to the seventh cylinder 262, and the eighth cylinder is used to drive the seventh cylinder 262 to move along the Z-axis.

[0149] The ninth cylinder 264 has a telescopic shaft connected to the eighth cylinder, and the ninth cylinder 264 is used to drive the eighth cylinder to move along the X-axis.

[0150] After the clamping rotary cylinder picks up the relay workpiece, it can rotate the relay workpiece so that its pins face down, and then place it on the testing station for pin testing.

[0151] Specifically, the pin detection unit 27 of the relay detection fixture 2 includes:

[0152] The upper pressure plate 271 is connected to the telescopic shaft of the tenth cylinder 272. The tenth cylinder 272 is used to drive the upper pressure plate 271 to move along the Z-axis. The upper pressure plate 271 is located above the detection station 215.

[0153] The eleventh cylinder 273 has a telescopic shaft connected to the tenth cylinder 272, which is used to drive the tenth cylinder 272 to move along the X-axis.

[0154] The test stand 274 has a socket 2741 on its upper side corresponding to the coil lead-out pin 2, the yoke pin and the stationary spring pin. The test stand 274 is connected to the telescopic shaft of the test cylinder 275. The test cylinder 275 is used to drive the test stand 274 to move along the Z-axis.

[0155] The processing track 21 at the testing station 215 is provided with openings 219 for the coil lead-out pin, yoke pin and stationary spring pin to pass through downwards, and the testing platform 274 is located below the openings 219.

[0156] The upper pressure plate presses firmly against the upper side of the relay workpiece to prevent it from moving. After the testing platform rises, if the coil lead 2, yoke lead, and stationary spring lead of the relay workpiece are vertically downward, they can be smoothly inserted into their respective sockets on the testing platform, and the testing platform can move into place. However, if the leads of the relay workpiece are bent or bent, they cannot all be inserted into the sockets. At this time, the testing platform will be blocked and cannot rise to the correct position. The extension action of the testing cylinder will be resisted, thus sending a signal indicating that the current relay workpiece is defective, thereby realizing the detection of the straightness of the relay workpiece leads.

[0157] It should be noted that in the description of this utility model, all directional indicators (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0158] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0159] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A relay processing and testing production line, characterized in that: It includes a coil pin processing fixture (1) and a relay testing fixture (2); The coil pin processing fixture (1) includes a frame (10), a fixture platform (11) mounted on the frame (10), and a rotary drive module (12) for driving the fixture platform (11) to rotate. The fixture platform (11) has multiple coil frame carriers (13) in the circumferential direction. The coil frame carriers (13) are equipped with grippers (14). The grippers (14) are used to clamp and position the coil frame workpiece, so that the coil frame is in a horizontal state and the coil lead extends vertically downward. The frame (10) is arranged sequentially along the outer periphery of the tooling platform (11): An industrial loading and unloading handling unit (15) is used for loading coil frame workpieces and unloading bent workpieces. Flux soaking unit (16), the flux soaking unit (16) is used to soak the coil lead-out pin with flux; Lead-out tinning unit (17), which is used to tin the lead-out of the coil after immersion; Lead-out bending unit (18), the lead-out bending unit (18) is used to bend the vertically downward coil lead-out to a horizontal state to obtain the bent workpiece; The relay testing fixture (2) includes a workbench (20) and a device mounted on the workbench (20): The processing track (21) is provided with a workpiece loading station (210), an armature loading and assembly station (211), a riveting station (212), a flipping station (213), an inspection station (214), and an inspection station (215) in sequence. The bending workpiece feeding unit (22) is used to arrange the bending workpieces output by the coil pin processing fixture (1) at equal intervals. An armature feeding unit (23) is used to arrange the incoming armatures at equal intervals; The armature assembly unit (24) is used to assemble the armature of the armature feeding unit (23) with the yoke of the bent workpiece on the processing track (21); The riveting unit (25) is used to rivet and fix the armature on the processing track (21) to the yoke of the bent workpiece; The flipping unit (26) is used to flip the relay workpiece that has been riveted on the processing track (21) so that the coil lead pin 2, the yoke pin and the stationary spring pin face down; Pin detection unit (27) is used to detect coil lead pin 2, yoke pin and stationary spring pin; Material transfer unit (28) is used to drive the bent workpiece to move sequentially on the processing track (21).

2. The relay processing and testing production line according to claim 1, characterized in that: The coil frame carrier (13) of the coil pin processing fixture (1) includes a carrier base (131), a carrier slide (132) vertically slidably disposed on the carrier base (131), and an elastic reset member (133) disposed between the carrier slide (132) and the carrier base (131). The gripper (14) is mounted on the carrier slide (132). The lead-in tin-dip unit (17) includes: A tin bath (171) is used to store molten tin and has an opening at the top. A heating and temperature control component heats the solder bath (171) and maintains the temperature of the molten solder constant. A matching cylinder (173) extends its telescopic shaft and presses down the carrier slide (132) of the coil frame carrier (13), causing the coil lead held by the gripper (14) to move into the solder bath (171); the telescopic shaft of the matching cylinder (173) retracts, and the elastic reset member (133) drives the carrier slide (132) to move upward, so that the coil lead exits from the solder bath (171); A slag removal assembly (174) includes a tin bath cover (1741), a first horizontal sliding drive module (1742), and a first vertical sliding drive module (1743). The tin bath cover (1741) is positioned above the opening of the tin bath (171), and one end of the tin bath cover (1741) is provided with a tin scraper (1744). The first vertical sliding drive module (1743) is used to drive the tin bath cover (1741) to slide vertically, so that the tin bath cover... (1741) Drives the solder scraper (1744) downward into the solder bath (171); the first horizontal sliding drive module (1742) is used to drive the solder bath cover (1741) to slide horizontally, so that the solder bath cover (1741) drives the solder scraper (1744) to slide from one end of the solder bath (171) to the other end, scraping and collecting the slag on the surface of the molten solder in the solder bath (171) into the solder slag recovery tank (175), and at the same time the solder bath cover (1741) opens the slot of the solder bath (171).

3. The relay processing and testing production line according to claim 1, characterized in that: The lead bending unit (18) of the coil lead processing fixture (1) includes: The coil frame positioning mechanism (181) includes a positioning plate (1811) and a second horizontal sliding drive module (1812). When the tooling platform (11) drives the coil frame carrier (13) to rotate to a position directly opposite the positioning plate (1811), the second horizontal sliding drive module (1812) is used to drive the positioning plate (1811) to slide horizontally toward or away from the coil frame carrier (13) to hold or release the coil frame workpiece. The inclined push bending mechanism (182) includes an inclined push plate (1821) and an inclined sliding drive module (1822). The inclined sliding drive module (1822) is used to drive the inclined push plate (1821) to slide obliquely, so as to push the vertically downward coil lead-out foot upward to the oblique downward state. The upward bending mechanism (183) includes a push plate (1831) and a second vertical sliding drive module (1832). The second vertical sliding drive module (1832) is used to drive the push plate (1831) to slide vertically, so as to push the inclined downward coil lead-out one upward to a horizontal state.

4. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The bent workpiece feeding unit (22) of the relay detection fixture (2) includes: The workpiece feeding track (221) after bending is used to transport the bent workpiece along the X-axis. A blocking cylinder (222) is provided in multiple equidistant positions along the conveying direction of the bent workpiece feeding track (221) and located at the downstream end of the bent workpiece feeding track (221). The telescopic shaft of the blocking cylinder (222) extends into the bent workpiece feeding track (221) to block and limit the movement of the bent workpiece. A photoelectric sensor (223) is provided at the upstream end of the first blocking cylinder (222) in a one-to-one correspondence with the first blocking cylinder (222); The bending workpiece feeding unit (22) further includes a bending workpiece moving device, which is used to move the bending workpieces arranged at equal intervals on the bending workpiece feeding track (221) to the armature loading and assembly station (211) of the processing track (21).

5. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The armature feeding unit (23) of the relay detection fixture (2) includes: An armature feeding track (231) is provided on which an armature is fed along the X-axis. At the downstream end of the armature feeding track (231), there are several permanent magnets (232) that magnetically attract each other with a single armature. The adjacent permanent magnets (232) are equidistantly arranged. The second blocking cylinder (233) is provided with a blocking block (234). After the second blocking cylinder (233) extends out, the blocking block (234) abuts against the armature feeding track (231) to block and limit the armature conveyed from the upstream end. A transfer block (235) is connected to the telescopic shaft of a first cylinder (236). The first cylinder (236) is used to drive the transfer block (235) to move along the Z-axis. The first cylinder (236) is connected to the telescopic shaft of a second cylinder (237). The second cylinder (237) is used to drive the first cylinder (236) to move along the X-axis.

6. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The armature assembly unit (24) of the relay detection fixture (2) includes: A bracket (241) is fixed on the workbench (20); A clamping cylinder (242) is used to clamp the armature on the armature feeding unit (23). The clamping cylinder (242) is connected to the telescopic shaft of the third cylinder (243). The third cylinder (243) is used to drive the clamping cylinder (242) to move along the Z-axis. The third cylinder (243) is connected to the telescopic shaft of the fourth cylinder (244). The fourth cylinder (244) is used to drive the third cylinder (243) to move along the Y-axis. The fourth cylinder (244) is mounted on the bracket (241). The clamping cylinder (242) moves between the armature feeding unit (23) and the armature loading and assembly station (211).

7. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The transfer unit (28) of the relay detection fixture (2) includes: The transfer plate (281) is located on one side of the processing track (21). The transfer plate (281) has several grooves (2811) that match the bent workpiece at equal intervals on the side of the transfer plate (281) facing the processing track (21). The fifth cylinder (282) has a telescopic shaft connected to a transfer plate (281) for driving the transfer plate (281) to move along the Y-axis. The fifth cylinder (282) is connected to the telescopic shaft of the sixth cylinder, which is used to drive the fifth cylinder (282) to move along the X-axis. A clamping cylinder (284) is provided on the transfer plate (281) and corresponds to the groove (2811), and is used to clamp and fix the workpiece after bending. The transfer plate (281) moves between the workpiece loading station (210) after bending, the armature loading and assembly station (211), the riveting station (212), and the flipping station (213).

8. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The machining track (21) of the relay detection fixture (2) includes: A fixed track (216) is fixed on the worktable (20); The movable track (217) is slidably connected to the worktable (20) and is connected to or separated from the fixed track (216). The movable track (217) is connected to the telescopic shaft of the track moving cylinder (218). The riveting unit (25) is located on one side of the moving track (217) in the direction of movement. After the moving track (217) moves out, it cooperates with the riveting unit (25) to perform riveting processing on the armature and yoke on the moving track (217).

9. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The flipping unit (26) of the relay detection fixture (2) includes: A clamping rotary cylinder (261) is used to clamp and rotate the relay workpiece on the flip station (213) and then place it on the inspection station (214). The seventh cylinder (262) has a telescopic shaft connected to a clamping rotary cylinder (261), and the seventh cylinder (262) is used to drive the clamping rotary cylinder (261) to move along the Y-axis; The eighth cylinder, whose telescopic shaft is connected to the seventh cylinder (262), is used to drive the seventh cylinder (262) to move along the Z-axis; The ninth cylinder (264) has a telescopic shaft connected to the eighth cylinder, and the ninth cylinder (264) is used to drive the eighth cylinder to move along the X-axis.

10. The relay processing and testing production line according to claim 1, 2, or 3, characterized in that: The pin detection unit (27) of the relay detection fixture (2) includes: Upper pressure plate (271), the upper pressure plate (271) is connected to the telescopic shaft of the tenth cylinder (272), the tenth cylinder (272) is used to drive the upper pressure plate (271) to move along the Z axis, the upper pressure plate (271) is located above the inspection station (215); The eleventh cylinder (273) has a telescopic shaft connected to the tenth cylinder (272) for driving the tenth cylinder (272) to move along the X-axis; The test stand (274) has sockets (2741) on its upper side corresponding to the coil lead-out pin 2, the yoke pin and the stationary spring pin respectively. The test stand (274) is connected to the telescopic shaft of the test cylinder (275). The test cylinder (275) is used to drive the test stand (274) to move along the Z-axis. The processing track (21) at the testing station (215) is provided with openings (219) for the coil lead-out pin, yoke pin and stationary spring pin to pass through downwards, and the testing platform (274) is located below the openings (219).

Images