Relay coil yoke riveting machine

Abstract

The utility model relates to the technical field of relay assembly, and discloses a relay coil yoke riveting machine which comprises a machine frame, an assembly conveying line, a yoke feeding device, a coil feeding device, an iron core feeding device, a riveting device, a visual detection device and a discharging device, and the assembly conveying line, the yoke feeding device, the coil feeding device, the iron core feeding device, the riveting device, the visual detection device and the discharging device are arranged on the machine frame. A plurality of jigs are arranged on the assembly conveying line and used for conveying the jigs, and the jigs are used for placing and limiting yokes and / or coils; the yoke feeding device is used for shaping a yoke and transferring the yoke to the jig, the coil feeding device is used for transferring a coil to the jig, the iron core feeding device is used for transferring an iron core to the jig, the riveting device is used for pressing and fixing the yoke, the coil and the iron core together, and the visual detection device is used for detecting the riveting condition. The discharging device is used for screening qualified assembly products and unqualified assembly products. According to the utility model, the problems of how to accurately shape the yoke before assembly and how to improve the matching precision among the yoke, the iron core and the coil can be solved.

Description

Technical Field

[0001] This utility model relates to the field of relay assembly technology, specifically to a relay coil yoke riveting machine. Background Technology

[0002] In the field of modern electronic control technology, relays, as a key electronic control device, are widely used in various automatic control circuit systems. The electromagnetic mechanism is the core component driving the relay's operation. In the design and manufacture of the electromagnetic mechanism, the fit between the yoke and the iron core is crucial; they must be tightly integrated to form a unified structure to ensure the effective transmission and concentration of electromagnetic force. This structure is typically achieved through a specific installation process: first, the iron core is precisely inserted into the coil; then, a riveting process is used to process the iron core, causing its bottom end to protrude from the coil and be firmly pressed into the pre-set socket of the yoke; finally, the yoke, coil, and iron core are tightly pressed and fixed together to form the necessary components for the relay.

[0003] With the continuous improvement of industrial automation, traditional manual riveting methods have been gradually replaced by riveting machines to improve production efficiency and reduce labor costs. Riveting machines, with their efficient and precise processing capabilities, have been widely used in the relay manufacturing field. However, existing relay coil yoke riveting machines on the market currently have certain limitations in their functional design.

[0004] In actual production, due to various factors such as processing errors and vibration during transportation, the yoke is prone to deformation or dimensional deviation at its angle before being inserted into the coil and pressed against the core. Existing riveting machines are relatively simple, only capable of basic assembly and riveting operations, lacking the ability to pre-shape the yoke precisely. This makes it difficult to effectively guarantee the fit between the yoke, core, and coil during riveting, potentially affecting the relay's electromagnetic and mechanical performance and overall stability, thus reducing product quality and reliability, increasing defect rates and rework rates, and imposing additional cost burdens on manufacturers.

[0005] In view of the above problems, it is particularly necessary to develop a relay coil yoke riveting machine with the function of precisely shaping the yoke before riveting. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a relay coil yoke riveting machine, which can at least solve the technical problem of: how to accurately shape the yoke before assembly and improve the fitting accuracy between the yoke, the iron core, and the coil.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a relay coil yoke riveting machine, comprising:

[0010] frame;

[0011] An assembly conveyor line is mounted on a frame. The assembly conveyor line is equipped with several jigs. The assembly conveyor line is used to transport the jigs. The jigs are used to place and limit the yoke and / or coil.

[0012] The yoke feeding device, coil feeding device, iron core feeding device, riveting device, visual inspection device and unloading device are all located on the frame and arranged sequentially along the conveying direction of the assembly conveyor line.

[0013] The device includes a yoke feeding device for shaping the yoke and transferring it to a fixture; a coil feeding device for transferring the coil to a fixture containing the yoke for assembling the yoke and coil; a core feeding device for transferring the core to a fixture containing the coil for assembling the core and coil; a riveting device for pressing and fixing the yoke, coil, and core together to form a component product; a visual inspection device for inspecting the riveting condition of the component product; and a feeding device for screening qualified and unqualified component products based on the inspection results of the visual inspection device and conveying the qualified and unqualified component products separately.

[0014] Further, the aforementioned yoke feeding device includes a yoke supply mechanism, a shaping mechanism, a first yoke transfer mechanism, a laser marking mechanism, and a second yoke transfer mechanism. The yoke supply mechanism is used to continuously feed yokes one by one to the shaping mechanism. The shaping mechanism is used to shape the yokes. The first yoke transfer mechanism is used to pick up the shaped yokes and transfer them to the laser marking mechanism. The laser marking mechanism is used to laser mark the yokes. The second yoke transfer mechanism is used to pick up the laser-marked yokes and transfer them to the fixture.

[0015] Furthermore, the aforementioned plastic surgery institution includes:

[0016] At least two upper and lower dies are arranged in opposite positions. Each lower die is arranged sequentially at the output end of the yoke supply mechanism along the discharge direction of the yoke supply mechanism. The angle of the upper die is the same as the angle of the corresponding lower die. A riveting space for accommodating a single yoke is formed between the upper and lower dies.

[0017] The upper die drive is mounted on the frame and is connected to at least two upper dies in a transmission manner. The upper die drive is used to drive at least two upper dies to move toward or away from the corresponding lower die, so as to expand or shrink the riveting space.

[0018] The machine includes a limit block, a limit block drive, a shift fork, and a shift fork drive assembly. The limit block and the shift fork are located on both sides of the lower die. Both the limit block and the shift fork are provided with clearance slots for the insertion of the yoke iron. The number of clearance slots is the same as that of the lower die, and their positions are arranged opposite to each other. The limit block drive and the shift fork drive assembly are both mounted on the frame. The limit block drive is driven to the limit block and is used to drive the limit block to move toward or away from the lower die. The shift fork drive assembly is driven to the shift fork and is used to drive the shift fork to move relative to the lower die along a first direction and / or a second direction to transport the yoke iron. The first direction and the second direction are two mutually perpendicular directions on a horizontal plane, and the first direction is the arrangement direction of the lower die.

[0019] Further configuration: The aforementioned laser marking mechanism includes a divider, a laser marking assembly, and two yoke chip removal mechanisms. The divider has four circumferentially spaced limiting grooves for accommodating and limiting the yoke. The first yoke transfer mechanism, the two yoke chip removal mechanisms, and the second yoke transfer mechanism are sequentially located on the outside of the divider, and are respectively positioned opposite to the four limiting grooves. The yoke chip removal mechanism is used to blow away dust and remove chips from the surface of the yoke. The laser marking mechanism is located above the upstream yoke chip removal mechanism and is used to shape the yoke.

[0020] Furthermore, the aforementioned yoke feeding device also includes a tilting mold and a tilting mold driving mechanism. The tilting mold driving mechanism is mounted on the frame and is connected to the tilting mold via a transmission. The tilting mold driving mechanism is used to drive the tilting mold to reciprocate between a first position and a second position.

[0021] In the first position, the flipping mold is arranged on the same straight line as at least two lower molds and is used to receive the shaped yoke; in the second position, the flipping mold is located outside the divider and is positioned opposite to one of the limiting grooves.

[0022] Further configuration: The aforementioned yoke supply mechanism includes a yoke vibratory feeder, a first stop mechanism, a second stop mechanism, and elastic rollers. The output end of the yoke vibratory feeder has at least three stations, each station being used to accommodate a single yoke. The first stop mechanism, the second stop mechanism, and the elastic rollers are sequentially arranged at the output end of the yoke vibratory feeder along the discharge direction. The first stop mechanism, the second stop mechanism, and the elastic rollers are respectively positioned opposite to the three last stations at the output end of the yoke vibratory feeder. The elastic rollers are rotatably connected to the frame and have the ability to elastically deform. The first stop mechanism, the second stop mechanism, and the elastic rollers are all used to restrict the output of the yoke at the corresponding station.

[0023] Further configuration: the aforementioned first material blocking mechanism includes a pressure block, a pressure block drive, a limiting rod, and a limiting rod drive. The pressure block drive is mounted on the frame. Both the pressure block and the limiting rod drive are mounted on the output end of the pressure block drive. The output end of the limiting rod drive is also connected to the limiting rod. The pressure block and the limiting rod are located on both sides of the corresponding workstation.

[0024] The pressure block drive is used to drive the pressure block and the limit rod drive to move toward or away from the corresponding work station, so as to press the pressure block tightly onto the yoke of the corresponding work station. The limit rod drive is used to drive the limit rod to move toward or away from the insertion port of the yoke of the corresponding work station.

[0025] In a further configuration, the aforementioned second baffle mechanism includes a baffle and a baffle drive component. The baffle drive component is mounted on the frame and is connected to the baffle via a transmission mechanism. The baffle drive component is used to drive the baffle to move between the two last working positions at the output end of the yoke vibratory plate, either towards or away from it.

[0026] Furthermore, the aforementioned riveting device is provided in two units, which are arranged at intervals along the conveying direction of the assembly conveyor line.

[0027] Furthermore, the aforementioned visual inspection device includes:

[0028] The first inspection mechanism is installed below the assembly conveyor line and downstream of the two riveting devices. The first inspection mechanism is used to detect whether the bottom end of the iron core is pressed into the socket of the yoke.

[0029] The second testing mechanism is installed above the assembly conveyor line and downstream of the first testing mechanism. The second testing mechanism is used to test the distance between the coil contacts and the highest point of the component product.

[0030] (III) Beneficial Effects

[0031] Compared with the prior art, the relay coil yoke riveting machine provided by this utility model has the following advantages:

[0032] When using the relay coil yoke riveting machine provided by this utility model, firstly, the yoke feeding device precisely shapes the yokes and transfers the shaped yokes one by one to the fixtures on the assembly conveyor line; then, the assembly conveyor line conveys the fixture to the coil feeding device, which places the coil on the yoke of the fixture; subsequently, the assembly conveyor line conveys the fixture to the core feeding device, which inserts the core into the coil of the fixture; next, the assembly conveyor line conveys the fixture to the riveting device, which presses down on the core of the fixture, causing the core to... The bottom end of the core passes through the coil and is pressed into the yoke's insertion port, thus pressing and fixing the yoke, coil, and core together on the fixture to form a component product. Subsequently, the assembly conveyor line transports the component product from the fixture to a vision inspection device, which checks the riveting condition of the component product. Finally, the assembly conveyor line transports the component product from the fixture to a feeding device, which screens qualified and unqualified component products based on the inspection results of the vision inspection device, and then transports the qualified and unqualified component products separately for classification and processing. It can be seen that this relay coil yoke riveting machine can automatically feed, assemble, and rivet the yoke, coil, and core to form the required component product. It can also automatically inspect and screen the component products, thereby improving production efficiency and ensuring the quality of the component products. Furthermore, before assembly, the relay coil yoke riveting machine can precisely shape the yoke through the yoke feeding device to ensure that the angle of the yoke meets the design requirements, thereby effectively improving the fit accuracy between the yoke, core, and coil, greatly increasing the yield rate of the component products, and ensuring the quality of the relay products. Attached Figure Description

[0033] Figure 1 This is a top view of the relay coil yoke riveting machine in the embodiment;

[0034] Figure 2 This is a perspective view of the shaping mechanism in the embodiment from a first-person viewpoint.

[0035] Figure 3 This is a perspective view of the shaping mechanism from a second viewpoint in the embodiment.

[0036] Figure 4 This is a perspective view of the laser marking mechanism in the embodiment;

[0037] Figure 5 This is a partial structural schematic diagram of the yoke supply mechanism in the embodiment;

[0038] Figure 6 This is a partial structural schematic diagram of the vision inspection device, the unloading device, and the assembly conveyor line in the embodiment.

[0039] Icon labels:

[0040] 1. Machine frame; 11. Defective product feed channel;

[0041] 2. Assembly conveyor line; 21. Fixtures;

[0042] 3. Yoke feeding device; 31. Yoke supply mechanism; 311. Yoke vibratory feeder; 3111. Station; 312. First stop mechanism; 3121. Pressure block; 3122. Pressure block drive; 3123. Limiting rod; 3124. Limiting rod drive; 313. Second stop mechanism; 3131. Baffle; 3132. Baffle drive; 314. Elastic roller; 32. Shaping mechanism; 321. Upper die; 322. 323. Lower die; 324. Upper die drive component; 325. Limiting block; 326. Shift fork; 327. Shift fork drive assembly; 328. Riveting space; 329. Relief groove; 320. First yoke transfer mechanism; 34. Laser marking mechanism; 341. Divider; 3411. Limiting groove; 342. Laser marking assembly; 343. Yoke chip removal mechanism; 35. Second yoke transfer mechanism; 36. Tilting die; 37. Tilting die drive mechanism;

[0043] 4. Coil feeding device; 41. Material tray; 411. Material trough; 42. Coil transfer mechanism; 43. Material tray stacking mechanism;

[0044] 5. Iron core feeding device; 51. Iron core vibratory feeder; 52. Iron core transfer mechanism;

[0045] 6. Riveting device;

[0046] 7. Visual inspection device; 71. First inspection mechanism; 72. Second inspection mechanism;

[0047] 8. Feeding device; 81. Good product transfer mechanism; 82. Defective product transfer mechanism;

[0048] 9. Component products; 91. Yoke; 911. Socket; 92. Coil; 93. Iron core. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0050] This utility model provides a relay coil yoke riveting machine to solve the problem of how to accurately shape the yoke 91 before assembly and improve the fitting accuracy between the yoke 91, the iron core 93, and the coil 92.

[0051] See Figure 1As shown, Figure 1 The image shows a top view of the relay coil yoke riveting machine in the embodiment. The relay coil yoke riveting machine includes a frame 1, an assembly conveyor line 2, a yoke feeding device 3, a coil feeding device 4, an iron core feeding device 5, a riveting device 6, a vision inspection device 7, and a unloading device 8.

[0052] Assembly conveyor line 2 is mounted on frame 1. Several jigs 21 are placed on assembly conveyor line 2. Assembly conveyor line 2 is used to transport jigs 21, which are used to place and limit yokes 91 and / or coils 92.

[0053] The yoke feeding device 3, coil feeding device 4, iron core feeding device 5, riveting device 6, vision inspection device 7, and unloading device 8 are all installed on the frame 1 and arranged sequentially along the conveying direction of the assembly conveyor line 2.

[0054] The device includes a yoke feeding device 3 for shaping the yoke 91 and transferring it to the fixture 21; a coil feeding device 4 for transferring the coil 92 to the fixture 21 containing the yoke 91 to assemble the yoke 91 and the coil 92; a core feeding device 5 for transferring the core 93 to the fixture 21 containing the coil 92 to assemble the core 93 and the coil 92; a riveting device 6 for pressing and fixing the yoke 91, the coil 92, and the core 93 together to form the component product 9; a visual inspection device 7 for inspecting the riveting condition of the component product 9; and a feeding device 8 for screening qualified and unqualified component products 9 according to the inspection results of the visual inspection device 7, and conveying the qualified and unqualified component products 9 respectively.

[0055] When using the relay coil yoke riveting machine described above, firstly, the yoke feeding device 3 shapes the yoke 91 and then transfers each shaped yoke 91 to the fixtures 21 on the assembly conveyor line 2. Then, the assembly conveyor line 2 moves along... Figure 1 The arrow in the image indicates that the jig 21 is being transported to the coil feeding device 4, which places the coil 92 onto the yoke 91 of the jig 21. Subsequently, the assembly conveyor line 2 proceeds along... Figure 1 The arrow in the image indicates that the jig 21 is being transported to the core feeding device 5, where the core feeding device 5 inserts the core 93 into the coil 92 of the jig 21. Next, the assembly conveyor line 2 proceeds along... Figure 1 The arrow in the image indicates that the jig 21 is being transported to the riveting device 6. The riveting device 6 presses down on the iron core 93 on the jig 21, causing the bottom end of the iron core 93 to pass through the coil 92 and be pressed into the insertion port 911 of the yoke 91. This presses and fixes the yoke 91, coil 92, and iron core 93 on the jig 21 together, forming component product 9. Subsequently, the assembly conveyor line 2 proceeds along... Figure 1The arrow in the image indicates that component product 9 on fixture 21 is conveyed to vision inspection device 7, which inspects the riveting condition of component product 9. Finally, assembly conveyor line 2 proceeds along... Figure 1 The arrow in the image indicates that the component product 9 on the fixture 21 is being transported to the unloading device 8. The unloading device 8 separates the qualified component products 9 from the unqualified component products 9 according to the detection results of the vision inspection device 7, and then proceeds along the path indicated by the arrow. Figure 1 The arrows indicate the directions for conveying qualified and unqualified component products 9, respectively, for sorting and processing. It can be seen that this relay coil yoke riveting machine can automatically feed, assemble, and rivet the yoke 91, coil 92, and iron core 93 to form the required component product 9. It can also automatically detect and screen the component product 9, thereby improving production efficiency and ensuring the quality of the component product 9. Furthermore, before assembly, the relay coil yoke riveting machine can precisely shape the yoke 91 through the yoke feeding device 3, ensuring that the angle of the yoke 91 meets the design requirements. This effectively improves the fitting accuracy between the yoke 91, iron core 93, and coil 92, greatly increasing the yield rate of the component product 9 and guaranteeing the quality of the relay product 9.

[0056] The assembly conveyor line 2 described above can use any one of the existing pusher mechanism, conveyor belt, shift fork 325 mechanism, etc., to provide driving force, or a combination of multiple of them to provide driving force, so as to realize the function of conveyor fixture 21.

[0057] See Figure 1 As shown, in one embodiment of the yoke feeding device 3, the yoke feeding device 3 includes a yoke supply mechanism 31, a shaping mechanism 32, a first yoke transfer mechanism 33, a laser marking mechanism 34, and a second yoke transfer mechanism 35. The yoke supply mechanism 31 continuously feeds yokes 91 one by one to the shaping mechanism 32. The shaping mechanism 32 shapes the yokes 91. The first yoke transfer mechanism 33 picks up the shaped yokes 91 and transfers them to the laser marking mechanism 34. The laser marking mechanism 34 laser-marks the yokes 91, and the second yoke transfer mechanism 35 picks up the laser-marked yokes 91 and transfers them to the fixture 21. Thus, the yoke feeding device 3, through the cooperation of the yoke supply mechanism 31, the shaping mechanism 32, the first yoke transfer mechanism 33, the laser marking mechanism 34, and the second yoke transfer mechanism 35, can automatically and continuously shape, laser mark, and transfer the yokes 91 one by one. Among them, the laser marking can facilitate subsequent traceability.

[0058] The first yoke transfer mechanism 33 and the second yoke transfer mechanism 35 described above can use existing two-axis linear drive mechanisms, three-axis linear drive mechanisms, or robotic arms, with a clamping cylinder installed at their output end. In this way, the clamping cylinder, in cooperation with the two-axis linear drive mechanism, three-axis linear drive mechanism, or robotic arm, can clamp the yoke 91 output by the yoke supply mechanism 31 and transfer it to any fixture 21 on the assembly conveyor line 2.

[0059] See Figure 2 and Figure 3 As shown, Figure 2 This is a first-view perspective perspective view of the shaping mechanism in the embodiment. Figure 3This is a perspective view of the shaping mechanism from a second angle in one embodiment. In one implementation of the shaping mechanism 32, the shaping mechanism 32 includes an upper die 321, a lower die 322, an upper die drive member 323, a limiting block 324, a limiting block drive member, a shift fork 325, and a shift fork drive assembly 326. There are at least two upper dies 321 and two lower dies 322, and each upper die 321 and each lower die 322 is positioned opposite to the other. Each lower die 322 is arranged sequentially at the output end of the yoke supply mechanism 31 along the discharge direction of the yoke supply mechanism 31. The angle of the upper die 321 is the same as the angle of the corresponding lower die 322. A riveting space 327 for accommodating a single yoke 91 is formed between the upper die 321 and the lower die 322. The upper die drive member 323 is mounted on the frame 1 by screwing or welding and is drively connected to at least two upper dies 321. The upper die drive 323 drives the upper die 321 to move toward or away from the corresponding lower die 322, thereby expanding or shrinking the riveting space 327. The limiting block 324 and the shift fork 325 are located on both sides of the lower die 322, and both the limiting block 324 and the shift fork 325 are provided with relief grooves 328 for the insertion of the yoke 91. The number of relief grooves 328 is the same as that of the lower die 322, and their positions are opposite to each other. The limiting block drive (not shown in the figure) is mounted on the frame 1 by screwing or welding, and is drive-connected to the limiting block 324. The limiting block drive is used to drive the limiting block 324 to move toward or away from the lower die 322. The shift fork drive assembly 326 is mounted on the frame 1 by screwing or welding, and is drive-connected to the shift fork 325. The shift fork drive assembly 326 is used to drive the shift fork 325 to move relative to the lower die 322 along a first direction and / or a second direction to transport the yoke 91, wherein the first direction and the second direction are two mutually perpendicular directions on a horizontal plane, and the first direction is the arrangement direction of the lower die 322.Thus, during the shaping process, firstly, the shift fork drive assembly 326 drives the shift fork 325 to move towards the lower die 322 along the second direction, so that the yoke 91 at the very end of the output end of the yoke supply mechanism 31 is inserted into the corresponding clearance groove 328 of the shift fork 325. Then, the limit block drive member drives the limit block 324 to move away from the lower die 322, releasing the yoke 91. The shift fork drive assembly 326 then drives the shift fork 325 to move along the first direction, thereby driving the yoke 91 through the shift fork 325. The first riveting space 327 is entered; subsequently, the shift fork drive assembly 326 drives the shift fork 325 to return to its original position, while the limit block drive component drives the limit block 324 to move toward the lower die 322, so that the yoke 91 is inserted into the corresponding clearance groove 328 of the limit block 324, thereby restricting the yoke 91 within the corresponding riveting space 327 by the limit block 324; next, the upper die drive component 323 drives the upper die 321 to move toward the corresponding lower die 322, thereby restricting the yoke 91 within the corresponding riveting space 327 by the limit block 324; then, the upper die drive component 323 drives the upper die 321 to move toward the corresponding lower die 322, thereby restricting the yoke 91 within the corresponding riveting space 327. After the yoke 91 is pressed tightly between the first pair of lower dies 322 and upper dies 321 for a period of time for shaping, so that the angle of the yoke 91 approaches the angle of the first pair of lower dies 322 and upper dies 321, the upper die drive 323 of the yoke 91 drives the upper die 321 to move away from the corresponding lower die 322, releasing the yoke 91; then, the shift fork drive assembly 326 drives the shift fork 325 to move towards the lower die 322 along the second direction; then, the limit block drive 324 drives the limit block 324 to move away from the lower die 322. 22 moves, and simultaneously the shift fork drive assembly 326 drives the shift fork 325 to move along the first direction, so as to input the yoke 91 on the first lower die 322 to the next lower die 322, and at the same time input the last yoke 91 at the output end of the yoke supply mechanism 31 to the first lower die 322; this is repeated, and after the yoke 91 is pressed and shaped by multiple pairs of upper dies 321 and lower dies 322, the shift fork drive assembly 326 and the shift fork 325 cooperate to remove the yoke 91 from the shaping mechanism 32. It can be seen that the shaping mechanism 32 can automatically and accurately deliver the yoke 91 through multiple pairs of upper dies 321 and lower dies 322 for shaping in sequence through the shift fork 325 and the shift fork drive assembly 326. The degree of automation is high, and the effect of multiple shaping is better. During the shaping process, the limit block 324 and the limit block drive component cooperate to restrict the yoke 91 within the corresponding riveting space 327, effectively preventing the yoke 91 from moving in the subsequent shaping process and affecting the shaping effect.

[0060] Both the upper mold drive component 323 and the limit block drive component can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles. The output end of the upper mold drive component 323 is connected to at least two upper molds 321 by screwing or welding, and the output end of the limit block drive component is connected to the limit block 324 by screwing or welding. The shift fork drive assembly 326 can use an existing two-axis linear drive mechanism, and its output end is connected to the shift fork 325 by screwing or welding.

[0061] See Figure 3 As shown, based on the above embodiment, there are three upper molds 321 and three lower molds 322. The angles of the three lower molds 322 along the discharge direction of the yoke supply mechanism 31 are set to 90°, 89.5° and 90.5° respectively.

[0062] See Figure 4 As shown, Figure 4 This is a perspective view of the laser marking mechanism in one embodiment. The laser marking mechanism 34 includes a divider 341, a laser marking assembly 342, and two yoke chip removal mechanisms 343. The divider 341 has four annularly spaced limiting grooves 3411 for accommodating and limiting the yoke 91. A first yoke transfer mechanism 33, the two yoke chip removal mechanisms 343, and a second yoke transfer mechanism 35 are sequentially distributed outside the divider 341, and are respectively positioned opposite to the four limiting grooves 3411. The yoke chip removal mechanism 343 is used to perform dust removal on the surface of the yoke 91. The laser marking assembly 342 is installed above the upstream yoke chip removal mechanism 343 and is used to perform laser marking on the yoke 91. Thus, after the yoke 91 is shaped, the first yoke transfer mechanism 33 first transfers the yoke 91 into the corresponding limiting groove 3411; then, the divider 341 rotates, rotating the yoke 91 to below the laser marking assembly 342. The yoke chip removal mechanism 343 performs dust removal treatment on the surface of the yoke 91, and then the laser marking assembly 342 performs laser marking; after laser marking, the divider 341 continues to rotate, rotating the yoke 91 to another yoke chip removal mechanism 343 for secondary chip removal treatment; finally, the divider 341 continues to rotate, rotating the yoke 91 to the second yoke transfer mechanism 35, which transfers the yoke 91 onto the fixture 21 of the assembly conveyor line 2. It can be seen that the yoke 91 is treated with chip removal by the yoke chip removal mechanism 343 before and after laser marking, which can effectively ensure the cleanliness of the yoke 91 surface, thereby improving the laser marking effect and even improving the subsequent assembly quality of the component product 9.

[0063] The aforementioned divider 341 can be an existing divider 341, the aforementioned laser marking assembly 342 can be an existing laser marking machine, and the aforementioned yoke chip removal mechanism 343 can be an existing dust blowing or dust collection mechanism.

[0064] In addition to the aforementioned yoke feeding device 3, a chip removal mechanism can also be installed downstream of the coil feeding device 4, the iron core feeding device 5, and the riveting device 6 of the relay coil yoke riveting machine. This mechanism can respectively blow away dust from the coil 92, the iron core 93, and the surface of the riveted component product 9 to further improve the installation quality of the component product 9.

[0065] See Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, based on the above embodiment, the yoke feeding device 3 further includes a flipping mold 36 and a flipping mold driving mechanism 37. The flipping mold driving mechanism 37 is mounted on the frame 1 by means of screwing or welding and is connected to the flipping mold 36 in a transmission manner. The flipping mold driving mechanism 37 is used to drive the flipping mold 36 to reciprocate between a first position and a second position. In the first position, the flipping mold 36 is arranged on the same straight line as at least two lower molds 322, and the flipping mold 36 is used to receive the shaped yoke 91. In the second position, the flipping mold 36 is located outside the divider 341 and is positioned opposite to one of the limiting grooves 3411. In this way, the flipping mold 36 and the flipping mold driving mechanism 37 cooperate to receive the shaped yoke 91 and flip the yoke 91 so that the first yoke transfer mechanism 33 can transfer the yoke 91 into the corresponding limiting groove 3411.

[0066] The aforementioned flipping mold drive mechanism 37 can use existing telescopic mechanisms such as telescopic cylinders or telescopic poles. The flipping mold 36 is rotatably connected to the frame 1, and the output end of the flipping mold drive mechanism 37 is rotatably connected to the flipping mold 36. Thus, the extension and retraction of the flipping mold drive mechanism 37 can drive the flipping mold 36 to flip between the first position and the second position. Alternatively, the aforementioned flipping mold drive mechanism 37 can use existing rotary drive mechanisms such as rotary cylinders, whose output end is fixed to the flipping mold 36 by screwing or welding. Thus, the flipping mold drive mechanism 37 can drive the flipping mold 36 to flip between the first position and the second position.

[0067] See Figure 1 and Figure 5 As shown, Figure 5This is a partial structural diagram of the yoke supply mechanism in one embodiment. The yoke supply mechanism 31 includes a yoke vibratory feeder 311, a first baffle mechanism 312, a second baffle mechanism 313, and an elastic roller 314. At least three stations 3111 are provided at the output end of the yoke vibratory feeder 311, each station 3111 accommodating a single yoke 91. The first baffle mechanism 312, the second baffle mechanism 313, and the elastic roller 314 are arranged sequentially at the output end of the yoke vibratory feeder 311 along the discharge direction of the yoke vibratory feeder 311. The first baffle mechanism 312, the second baffle mechanism 313, and the elastic roller 314 are respectively positioned opposite to the three outermost stations 3111 at the output end of the yoke vibratory feeder 311. The elastic roller 314 is rotatably connected to the frame 1 and has the ability to elastically deform. The first stop mechanism 312, the second stop mechanism 313, and the elastic roller 314 are all used to restrict the output of the yoke 91 from the corresponding station 3111. In this way, the first stop mechanism 312, the second stop mechanism 313, and the elastic roller 314 work together to control the timing of the yoke 91 at the output end of the yoke vibratory plate 311 input to the shaping mechanism 32, so as not to affect the shaping result; and the elastic roller 314 can not only roll the yoke 91 at the corresponding station 3111 and restrict it on the corresponding station 3111, but the elastic roller 314 can also elastically deform and rotate, so that the shift fork 325 and the shift fork drive assembly 326 work together to apply force to move the yoke 91 out of the station 3111 corresponding to the elastic roller 314, and also avoid scratching the surface of the yoke 91.

[0068] The aforementioned yoke vibratory plate 311 can use an existing vibratory plate. The outer periphery or the entirety of the aforementioned elastic roller 314 can be made of an elastic material.

[0069] See Figure 5As shown, in one embodiment of the first stop mechanism 312, the first stop mechanism 312 includes a pressure block 3121, a pressure block drive member 3122, a limiting rod 3123, and a limiting rod drive member 3124. The pressure block drive member 3122 is mounted on the frame 1 by means of screwing or welding. The pressure block 3121 and the limiting rod drive member 3124 are both mounted on the output end of the pressure block drive member 3122 by means of screwing or welding. The output end of the limiting rod drive member 3124 is also connected to the limiting rod 3123 by means of screwing or welding. The pressure block 3121 and the limiting rod 3123 are located on both sides of the corresponding workstation 3111. The pressure block drive member 3122 is used to drive the pressure block 3121 and the limiting rod drive member 3124 to move toward or away from the corresponding workstation 3111, so as to press the pressure block 3121 tightly onto the yoke 91 of the corresponding workstation 3111. The limiting rod drive 3124 is used to drive the limiting rod 3123 to move toward or away from the insertion port 911 of the yoke 91 at the corresponding work station 3111. In this way, the first stop mechanism 312, through the cooperation of the pressure block 3121, the pressure block drive 3122, the limiting rod 3123, and the limiting rod drive 3124, can restrict both sides of the yoke 91 at the corresponding work station 3111, effectively preventing the yoke 91 from exiting the corresponding work station 3111.

[0070] Both the aforementioned pressure block drive component 3122 and limit rod drive component 3124 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles.

[0071] See Figure 5 As shown, in one embodiment of the second blocking mechanism 313, the second blocking mechanism 313 includes a baffle 3131 and a baffle drive member 3132. The baffle drive member 3132 is mounted on the frame 1 by means of screwing or welding, and is connected to the baffle 3131 in a transmission manner. The baffle drive member 3132 is used to drive the baffle 3131 to move towards or away from the two last working positions 3111 at the output end of the yoke vibratory plate 311. Thus, when the baffle drive member 3132 drives the baffle 3131 to insert between the two last working positions 3111 at the output end of the yoke vibratory plate 311, the baffle 3131 can not only block the yoke 91 from outputting to the corresponding working position 3111, but also separate the two last yokes 91, forming a gap between the two yokes 91, so that the shift fork 325 can drive the last yoke 91 to be input into the shaping mechanism 32.

[0072] The aforementioned baffle drive 3132 can use existing linear drive mechanisms such as telescopic cylinders or telescopic poles, and its output end is connected to the baffle 3131 by means of screwing or welding.

[0073] See Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in one embodiment of the riveting device 6, there are two riveting devices 6. The two riveting devices 6 are arranged at intervals along the conveying direction of the assembly conveyor line 2. In this way, the yoke 91, coil 92 and iron core 93 are riveted twice by the two riveting devices 6, which can effectively ensure the riveting effect.

[0074] The riveting device 6 described above can use an existing riveting machine.

[0075] See Figure 1 and Figure 6 As shown, Figure 6 This is a partial structural diagram of the vision inspection device, unloading device, and assembly conveyor line in one embodiment. In one implementation of the vision inspection device 7, the device includes a first inspection mechanism 71 and a second inspection mechanism 72. The first inspection mechanism 71 is installed below the assembly conveyor line 2 and downstream of the two riveting devices 6. The first inspection mechanism 71 is used to detect whether the bottom end of the iron core 93 is pressed into the insertion port 911 of the yoke 91. The second inspection mechanism 72 is installed above the assembly conveyor line 2 and downstream of the first inspection mechanism 71. The second inspection mechanism 72 is used to detect the distance between the contact of the coil 92 and the highest point of the component product 9. Thus, after riveting, the first inspection mechanism 71 can detect whether the bottom end of the iron core 93 is pressed into the insertion port 911 of the yoke 91 from below; while the second inspection mechanism 72 detects the distance between the contact of the coil 92 and the highest point of the component product 9 from above, indirectly detecting whether the bottom end of the iron core 93 is pressed into the insertion port 911 of the yoke 91. It can be seen that the visual inspection device 7 determines whether the bottom end of the iron core 93 is pressed into the insertion port 911 of the yoke 91 by both the first inspection mechanism 71 and the second inspection mechanism 72, thereby judging whether the riveting condition is qualified, which can effectively improve the accuracy of the inspection results.

[0076] The first detection mechanism 71 mentioned above can use existing visual detection mechanisms such as CCD, and the second detection mechanism 72 mentioned above can use existing distance detection mechanisms such as height sensors.

[0077] See Figure 1 As shown, in one embodiment of the coil feeding device 4, the coil feeding device 4 includes a tray 41 and a coil transfer mechanism 42. The tray 41 has multiple slots 411 for placing and positioning the coils 92. The coil transfer mechanism 42 can use an existing two-axis linear drive mechanism, a three-axis linear drive mechanism, or a robot, with a clamping cylinder mounted at its output end. In this way, the coil transfer mechanism 42 can clamp the coils 92 on the tray 41 and transfer them one by one to the fixture 21 of the assembly conveyor line 2.

[0078] See Figure 1As shown, based on the above embodiment, the coil feeding device 4 also includes a material tray stacking mechanism 43, which can automatically transfer and stack empty material trays 41, further improving the automation level of the relay coil yoke riveting machine.

[0079] See Figure 1 As shown, in one embodiment of the coil feeding device 4, the core feeding device 5 includes a core vibratory feeder 51 and a core transfer mechanism 52. The core transfer mechanism 52 can use an existing two-axis linear drive mechanism, a three-axis linear drive mechanism, or a robot, with a clamping cylinder installed at its output end. In this way, the core transfer mechanism 52 can clamp the core 93 output from the core vibratory feeder 51 and transfer it to the fixture 21 of the assembly conveyor line 2 for insertion into the coil 92.

[0080] See Figure 1 and Figure 6 As shown, in one embodiment of the unloading device 8, the frame 1 has a defective product feed channel 11. The unloading device 8 includes a good product transfer mechanism 81 and a defective product transfer mechanism 82. Both the good product transfer mechanism 81 and the defective product transfer mechanism 82 can use existing two-axis linear drive mechanisms, three-axis linear drive mechanisms, or robotic arms, with clamping cylinders installed at their output ends. Thus, the good product transfer mechanism 81 picks up qualified component products 9 and moves them to the next process for further assembly, while the defective product transfer mechanism 82 picks up unqualified component products 9 and places them onto the defective product feed channel 11 of the frame 1 for subsequent recycling processing.

[0081] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A relay coil yoke riveter characterized by comprising: The utility model relates to a kind of assembly line for assembling yoke and coil, which comprises: A rack; An assembly conveying line is arranged on the rack, and a plurality of jigs are arranged on the assembly conveying line, the assembly conveying line is used to convey the jigs, and the jigs are used to place and position yoke and / or coil; A yoke feeding device, a coil feeding device, a core feeding device, a riveting device, a visual inspection device and a discharging device are arranged on the rack and arranged in sequence along the conveying direction of the assembly conveying line; The yoke feeding device is used to shape the yoke and transfer the shaped yoke to the jigs, the coil feeding device is used to transfer the coil to the jigs with yoke to assemble yoke and coil, the core feeding device is used to transfer the core to the jigs with coil to assemble core and coil, the riveting device is used to rivet and fix the yoke, coil and core together to form an assembly product, the visual inspection device is used to detect the riveting condition of the assembly product, and the discharging device is used to screen qualified assembly products and unqualified assembly products according to the detection results of the visual inspection device and convey the qualified assembly products and the unqualified assembly products, respectively.

2. The relay yoke riveter of claim 1, wherein, The yoke feeding device comprises a yoke supply mechanism, a shaping mechanism, a first yoke transfer mechanism, a laser marking mechanism and a second yoke transfer mechanism, the yoke supply mechanism is used to continuously convey the yoke to the shaping mechanism one by one, the shaping mechanism is used to shape the yoke, the first yoke transfer mechanism is used to clamp the shaped yoke and transfer the yoke to the laser marking mechanism, the laser marking mechanism is used to laser mark the yoke, and the second yoke transfer mechanism is used to clamp the laser marked yoke and transfer the yoke to the jigs.

3. The relay yoke riveter of claim 2, wherein, The shaping mechanism comprises: At least two upper dies and lower dies arranged opposite to each other, each lower die is arranged at the output end of the yoke supply mechanism along the discharging direction of the yoke supply mechanism, the angle of the upper die is the same as the angle of the corresponding lower die, and a riveting space for accommodating a single yoke is formed between the upper die and the lower die; An upper die driving member is arranged on the rack and drivingly connected with at least two upper dies, the upper die driving member is used to drive at least two upper dies to move towards or away from the corresponding lower die to expand or reduce the riveting space. The position limiting block, the position limiting block driving member, the shift fork and the shift fork driving assembly are respectively arranged on two sides of the lower die, and each of the position limiting block and the shift fork is provided with a slot for inserting the yoke, the slots are arranged in the same number and position as the lower die, the position limiting block driving member and the shift fork driving assembly are arranged on the rack, the position limiting block driving member is in transmission connection with the position limiting block and is used for driving the position limiting block to move towards or away from the lower die, the shift fork driving assembly is in transmission connection with the shift fork and is used for driving the shift fork to move relative to the lower die along a first direction and / or a second direction to convey the yoke, the first direction and the second direction are two perpendicular directions in a horizontal plane, and the first direction is the arrangement direction of the lower die.

4. The relay yoke riveter of claim 3 wherein, The laser marking mechanism comprises a divider, a laser marking assembly and two yoke scrap removing mechanisms, the divider is annularly and spacedly provided with four position limiting slots, the position limiting slots are used for accommodating and limiting the yoke, the first yoke transferring mechanism, the two yoke scrap removing mechanisms and the second yoke transferring mechanism are sequentially arranged outside the divider, and the first yoke transferring mechanism, the two yoke scrap removing mechanisms and the second yoke transferring mechanism are respectively arranged opposite to the four position limiting slots, the yoke scrap removing mechanism is used for blowing and removing dust on the surface of the yoke, and the laser marking mechanism is arranged above the yoke scrap removing mechanism upstream and is used for shaping the yoke.

5. The relay yoke riveter of claim 4 wherein, The yoke feeding device further comprises a turnover die and a turnover die driving mechanism, the turnover die driving mechanism is arranged on the rack and is in transmission connection with the turnover die, and the turnover die driving mechanism is used for driving the turnover die to reciprocate between a first position and a second position. When the turnover die is in the first position, the turnover die and at least two lower dies are arranged on the same straight line and are used for receiving the shaped yoke, and when the turnover die is in the second position, the turnover die is arranged outside the divider and opposite to one of the position limiting slots.

6. The relay yoke riveter of claim 2 wherein, The yoke supply mechanism comprises a yoke vibrating disc, a first material blocking mechanism, a second material blocking mechanism and an elastic roller, the output end of the yoke vibrating disc is provided with at least three stations, the stations are used for accommodating a single yoke, the first material blocking mechanism, the second material blocking mechanism and the elastic roller are sequentially arranged at the output end of the yoke vibrating disc along the discharging direction of the yoke vibrating disc, the first material blocking mechanism, the second material blocking mechanism and the elastic roller are respectively arranged opposite to the three stations at the end of the output end of the yoke vibrating disc, the elastic roller is rotatably connected to the rack and has the ability of elastic deformation, and the first material blocking mechanism, the second material blocking mechanism and the elastic roller are all used for limiting the yoke output corresponding to the stations.

7. The relay yoke riveter of claim 6 wherein, The first material blocking mechanism comprises a pressing block, a pressing block driving element, a limiting rod and a limiting rod driving element, the pressing block driving element is arranged on the rack, the pressing block and the limiting rod driving element are arranged on the output end of the pressing block driving element, and the output end of the limiting rod driving element is connected with the limiting rod. The pressing block driving element is used to drive the pressing block and the limiting rod driving element to move towards or away from the corresponding work station, so as to press the pressing block on the yoke corresponding to the work station, and the limiting rod driving element is used to drive the limiting rod to move towards or away from the socket of the yoke corresponding to the work station.

8. The relay yoke riveter of claim 6 wherein, The second material blocking mechanism comprises a baffle and a baffle driving element, the baffle driving element is arranged on the rack and is in transmission connection with the baffle, and the baffle driving element is used to drive the baffle to move between the two work stations at the most end of the output end of the yoke vibrating disc.

9. The relay yoke riveter of any of claims 1-8, wherein, The number of riveting devices is two, and the two riveting devices are arranged at intervals along the conveying direction of the assembly conveying line.

10. The relay yoke riveter of claim 9, wherein, The visual detection device comprises: A first detection mechanism is arranged below the assembly conveying line and downstream of the two riveting devices, and is used to detect whether the bottom end of the iron core is pressed into the socket of the yoke; A second detection mechanism is arranged above the assembly conveying line and downstream of the first detection mechanism, and is used to detect the distance between the contact pin of the coil and the highest point of the assembly product.

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