Automatic assembly and detection production line for solid-state relays

Abstract

The invention discloses an automatic assembly and detection production line for a solid-state relay, and relates to the technical field of relay assembly equipment. Comprising an automatic nut wiring board assembling device, a bending and shaping workbench, an automatic tin soldering device, a first pressure resistance detection device, an automatic dispensing device, an automatic light guide column and upper cover plate assembling device, an automatic drying and cooling device, an automatic screw assembling device, an automatic upper flip cover assembling device and a second pressure resistance detection device which are sequentially connected to form a production line. The production line is provided with a material moving device, and the material moving device comprises a carrier, a conveying belt, a carrier backflow belt, a shifting fork conveying assembly, a feeding carrying assembly, a solid-state relay discharging carrying assembly and a carrier backflow carrying assembly. According to the invention, besides the circuit board pin bending and shaping step, full-automatic assembly and detection of the solid-state relay are realized, the labor cost can be effectively saved, the positioning is accurate, the production efficiency is high, and the automation degree is high.

Description

Technical Field

[0001] The invention relates to the technical field of relay assembly equipment, and in particular to an automatic assembly and detection production line for solid-state relays. Background Art

[0002] Solid-state relays are contactless switches composed of microelectronic circuits, discrete electronic devices, and power electronic devices. Figure 1 As shown, when assembling the solid-state relay, first, nuts 102 and terminal blocks 103 need to be installed on the terminal ends of the housing 101, and then the pins 107 on the circuit board need to be bent and fit onto the terminal block 103 before soldering, followed by glue dispensing insulation treatment, and then screws 108, light guide columns 110, and upper cover 109 need to be installed, and finally the end of the upper flip cover 104 needs to be expanded and the pin shaft 105 needs to be limited in the groove 105 of the housing 101 to complete the assembly.

[0003] Existing solid-state relays rely on a combination of manual and mechanical methods for assembly. The following problems exist in the existing automated assembly and testing production lines: 1. There are automatic assembly and testing devices with a high degree of automation, such as automatic dispensing devices, automatic light guides and upper cover assembly devices, automatic drying and cooling devices, automatic screw assembly devices, and pressure resistance testing devices. However, the transmission between devices only relies on simple conveyor belts. The solid-state relay housing is prone to displacement during transmission, and a complex positioning mechanism needs to be set up or further positioned manually, resulting in redundant production lines, labor consumption, and increased production costs; 2. Some of the parts to be assembled are small or thin workpieces, or the connections are weak, such as nuts, terminal blocks, and upper flip covers, which are all completed manually, and the assembly efficiency is low. Summary of the invention

[0004] In view of the problems in the existing solid-state relay automatic assembly and detection production line that the solid-state relay housing is easily offset during transportation and some parts still need manual assembly, the present invention provides a solid-state relay automatic assembly and detection production line that can realize full-automatic assembly and detection except for the circuit board bending and shaping steps, the solid-state relay housing will not be offset during transportation, the labor cost is low, and the assembly efficiency is high.

[0005] The technical solution provided by the present invention is: A solid-state relay automatic assembly and detection production line, characterized in that it includes an automatic nut terminal block assembly device, a bending and shaping workbench, an automatic soldering device, a first withstand voltage detection device, an automatic glue dispensing device, an automatic light guide column and upper cover assembly device, an automatic drying and cooling device, an automatic screw assembly device, an automatic cover installation device, a second withstand voltage detection device, and a material discharging and coding device, which are sequentially connected to form a production line; The automatic nut terminal board assembly device automatically assembles nuts and terminal boards of solid-state relays, the bending and shaping workbench manually bends and shapes the pins to fit the terminal boards, the automatic soldering device solders the pins and terminal boards, the first withstand voltage detection device performs a first withstand voltage detection on the solid-state relay that has been soldered, the automatic glue dispensing device automatically dispenses glue on the solid-state relay that has completed the first withstand voltage detection, the automatic light guide column and upper cover assembly device automatically installs the light guide column and the upper cover on the solid-state relay that has completed the glue dispensing, the automatic drying and cooling device first heats and then cools the solid-state relay that has completed the upper cover installation to solidify the glue, the automatic screw assembly device and the automatic flip cover installation device perform screws, and the flip cover is automatically assembled and then subjected to a second withstand voltage detection by the second withstand voltage detection device, and the material discharging and coding device codes and discharges the solid-state relays that have passed the inspection; The production line is provided with a material moving device, which includes a carrier, a conveyor belt, a carrier reflow belt, a fork conveying assembly, a material feeding and conveying assembly, a solid-state relay material discharging and conveying assembly, and a carrier reflow conveying assembly. The conveyor belt is used to connect between various devices, and the fork conveying assembly is used to convey the carrier and the solid-state relay housing in each device. The material feeding and conveying assembly is arranged on the side of the conveyor belt, and is used to grab and convey the carrier together with the solid-state relay housing. The starting end of the carrier reflow belt is arranged after the flip cover device is automatically installed. The solid-state relay material discharging and conveying assembly and the carrier reflow conveying assembly are arranged on the side of the carrier reflow belt. The solid-state relay material discharging and conveying assembly grabs and conveys the solid-state relay housing to the second withstand voltage detection device, and the carrier reflow conveying assembly grabs and conveys the carrier to the carrier reflow belt. The tail end of the carrier reflow belt is connected to the starting end of the conveyor belt.

[0006] By setting up conveyor belts and fork transmission components, automatic transmission of materials between and within various devices can be achieved. By setting up a carrier to accommodate the solid-state relay housing, the solid-state relay housing is limited behind the carrier and will not shift when it is grabbed and transmitted. The carrier is convenient for grabbing and positioning, and there is no need to set up a cumbersome positioning mechanism, which is conducive to simplifying the production line. By setting up a carrier reflux handling component and a carrier reflux belt recovery and circulation carrier, the production efficiency and the degree of automation can be effectively improved.

[0007] Furthermore, the carrier includes a first groove for accommodating the solid-state relay housing, a plurality of limiting ribs are provided on the side wall of the first groove, a positioning column is provided in the first groove, and a plurality of positioning holes are provided on the outer side of the bottom of the carrier.

[0008] Furthermore, the material feeding and handling assembly includes a material picking claw and a first driving cylinder for driving the material picking claw to clamp or loosen. A slider guide cylinder assembly is provided on the side of the material picking claw for driving the material picking claw to move horizontally and vertically. A positioning protrusion is provided at the lower end of the material picking claw to match the positioning hole.

[0009] Furthermore, the shift fork transmission assembly includes a sliding plate, on which a plurality of shift claws arranged at equal distances are arranged, and on the side of the sliding plate there is a slider guide cylinder assembly for driving the sliding plate to move horizontally and vertically.

[0010] Furthermore, the solid-state relay unloading and handling assembly has the same structure as the carrier reflux handling assembly, including a unloading and handling cross plate, a slider guide cylinder assembly for driving the unloading and handling cross plate to move horizontally and vertically, and a transfer frame. Two groups of gripper assemblies are provided on both sides of the unloading and handling cross plate. The gripper assembly includes a clamping gripper and a second driving cylinder for driving the clamping gripper to clamp or release the gripper. Silicone pads are provided at the clamping position of the gripper, and the transfer frame is arranged on the side of the gripper assembly.

[0011] Further, the automatic nut terminal block assembly device comprises a first material channel, a nut installation assembly, and a terminal block installation assembly, wherein the first material channel is provided with a fork transmission assembly; The nut installation assembly includes a first vibration plate, a nut material channel connected with the first vibration plate, an adapter seat is provided at the end of the nut material channel, a biasing block movable relative to the adapter seat is provided on the adapter seat, two nut slots are provided on the biasing block, two nut suction nozzles and two stripping ejector rods are provided above the nut slots, a second fixed plate is provided on the side of the nut suction nozzle, a slider guide cylinder assembly for driving the second fixed plate to move horizontally and vertically is provided on the second fixed plate, a nut ejector rod is provided below the nut slot, a groove for accommodating a single nut is provided at the lower end of the nut suction nozzle, and the nut ejector rod pushes the nut in the nut slot into the groove; The terminal board installation assembly includes a terminal board feeding mechanism and a terminal board pressing mechanism, the terminal board feeding mechanism includes a second vibration disk, a terminal board material channel connected to the second vibration disk, a terminal board claw assembly is provided at the end of the terminal board material channel, the terminal board claw assembly includes a terminal board claw and a pressure rod seat, the pressure rod seat is arranged on the outside of the terminal board claw and the lower end extends to the middle of the terminal board claw, a pressure rod is provided at the lower end of the pressure rod seat, a spring is provided between the pressure rod and the pressure rod seat, a third fixed plate is provided on the side of the terminal board claw assembly, and a slider guide cylinder assembly for driving the third fixed plate to move horizontally and vertically is provided on the third fixed plate; the terminal board pressing mechanism includes a movable plate and a pressure plate, the movable plate and the pressure plate are connected by a plurality of pressure guide pillars, the pressure guide pillars are provided with a buffer spring, and the upper end of the movable plate is provided with a third driving cylinder for driving the movable plate to move up and down.

[0012] Furthermore, a guide positioning block is provided on the side of the first material channel, a fourth driving cylinder for driving the guide positioning block to move up and down is provided at the lower end of the guide positioning block, a nut detection assembly is provided between the nut installation assembly and the terminal board installation assembly, a terminal board detection assembly is provided at the rear end of the terminal board installation assembly, a defective product conveyor belt and a defective product transport assembly are provided on the side of the terminal board detection assembly, and the defective product transport assembly transports the defective products to the defective product conveyor belt according to the detection results of the nut detection assembly and the terminal board detection assembly.

[0013] Furthermore, the automatic flip-cover installation device includes a second material channel and an upper flip-cover installation assembly, the second material channel is provided with a fork transmission assembly, the upper flip-cover installation assembly includes a clamping claw mechanism, a rotating cylinder driving the clamping claw mechanism to rotate, and a slider guide cylinder assembly driving the clamping claw mechanism to make lateral and longitudinal displacements, the clamping claw mechanism includes a clamping claw and a fifth driving cylinder driving the clamping claw to clamp or release, a flip-cover positioning block is provided on the side of the clamping claw, the lower end of the flip-cover positioning block extends to the middle of the clamping claw, the lower end of the flip-cover positioning block is provided with a positioning rod corresponding to the upper flip-cover hole, the lower end of the positioning rod is truncated cone-shaped, and a guide expansion block is provided on the side of the material channel corresponding to the flip-cover positioning block, and the front end of the guide expansion block is provided with an outward expansion inclined surface.

[0014] Furthermore, a positioning protrusion is provided at the end of the flip cover positioning block, a positioning groove is provided at the guide expansion block corresponding to the positioning protrusion, a shell positioning block is provided on the side of the positioning groove, and the shell positioning block cooperates with the fork transmission assembly to position the solid-state relay shell up and down.

[0015] Furthermore, the automatic flip-up device also includes a simulated flip-up assembly, which includes a flip-up claw, a sixth driving cylinder for driving the flip-up claw to clamp or loosen, and a seventh driving cylinder for driving the flip-up claw to move up and down. A clamping positioning block is provided on the side of the flip-up claw, and the clamping positioning block is provided with a plurality of clamping ejectors. The clamping ejectors include a main ejector for pressing the solid-state relay housing and a secondary ejector for pressing the upper flip cover, and a rubber pad is provided at the lower end of the main ejector.

[0016] The beneficial effects of the present invention are as follows: the present invention realizes fully automatic assembly and detection except for the bending and shaping steps of the circuit board pins, which can effectively save labor costs. Through the arrangement of the conveyor belt and the fork conveying assembly, the automatic conveying of materials between and within the various devices is realized. By arranging a carrier to accommodate the solid-state relay housing, the solid-state relay housing is limited after the carrier and will not be offset when it is grasped and conveyed. The carrier is convenient for grasping and positioning, and there is no need to arrange a complicated positioning mechanism, which is conducive to simplifying the production line. By arranging a carrier reflux handling assembly and a carrier reflux belt recovery and circulation carrier, the production efficiency and the degree of automation are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Assemble schematic diagram for solid-state circuit breaker; Figure 2 It is a structural schematic diagram of an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a material moving device according to an embodiment of the present invention; Figure 4 is a schematic structural diagram of a carrier according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a feed handling assembly according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of a solid-state relay discharging and handling assembly according to an embodiment of the present invention; Figure 7 It is a structural schematic diagram of an automatic nut terminal block assembly device according to an embodiment of the present invention; Figure 8 This is a structural schematic diagram of a nut installation assembly according to an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a wiring board installation assembly according to an embodiment of the present invention; Fig.10 This is a schematic structural diagram of the first material channel according to an embodiment of the present invention; Fig.11 This is a schematic diagram of the structure of the automatic flip cover installation device according to an embodiment of the present invention; Fig.12 It is a structural schematic diagram of the upper flip cover installation assembly according to an embodiment of the present invention; Fig.13 for Fig.12 A partial enlarged view of Fig.14 The figure is a schematic diagram of the structure of a simulated flip cover assembly according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0019] like Figure 2 As shown, a solid-state relay automatic assembly and testing production line includes an automatic nut terminal block assembly device A, a bending and shaping workbench C, an automatic soldering device D, a first withstand voltage detection device J, an automatic glue dispensing device E, an automatic light guide column and upper cover assembly device F, an automatic drying and cooling device G, an automatic screw assembly device H, an automatic flip cover installation device B, a second withstand voltage detection device K, and a material discharging and coding device T, which are sequentially connected to form a production line; The working process of this production line is as follows: the automatic nut terminal board assembly device A automatically assembles the nuts and terminal boards of the solid-state relay, the bending and shaping workbench C manually bends and shapes the pins to make the pins fit the terminal board, the automatic soldering device D solders the pins and the terminal board, the first withstand voltage detection device J performs the first withstand voltage detection on the solid-state relay that has been soldered, the automatic glue dispensing device E automatically dispenses glue on the solid-state relay that has completed the first withstand voltage detection, the automatic light guide column and upper cover assembly device F automatically installs the light guide column and the upper cover on the solid-state relay that has completed the glue dispensing, the automatic drying and cooling device G first heats and then cools the solid-state relay that has completed the upper cover installation to solidify the glue, the automatic screw assembly device H and the automatic flip cover installation device B perform screws and automatic flip cover assembly, and then the second withstand voltage detection device K performs the second withstand voltage detection, and finally the unloading and coding device codes and discharges the solid-state relays that have passed the inspection. In this embodiment, the automatic soldering device D, the first voltage resistance detection device J, the automatic glue dispensing device E, the automatic light guide column and upper cover assembly device F, the automatic drying and cooling device G, the automatic screw assembly device H, the second voltage resistance detection device K, and the material discharging and coding device T are all existing technologies and will not be described in detail herein. The pins on the circuit board are small and there is uncertainty in their positions, so they are assembled by manual bending and shaping on a workbench. Except for the bending and shaping steps of the circuit board pins, this embodiment realizes fully automatic assembly and detection, which can effectively save labor costs.

[0020] like Figure 2-3 As shown, the production line is provided with a material moving device, which includes a carrier 1, a conveyor belt 11, a carrier reflow belt 14, a fork conveying assembly M, a feeding conveying assembly A3, a solid-state relay discharging conveying assembly 15, and a carrier reflow conveying assembly 17. The conveyor belt 11 is used for connecting various devices, the fork conveying assembly M is used for conveying the carrier and the solid-state relay housing in each device, and a plurality of feeding conveying assemblies A3 can be provided according to the process conditions, which are arranged on the side of the conveyor belt 11 and are used to grab and transport the carrier together with the solid-state relay housing. The starting end of the carrier reflow belt 14 is arranged after the flip cover device B is automatically installed. The solid-state relay discharging conveying assembly 15, the carrier reflow conveying assembly A3, and the solid-state relay discharging conveying assembly A3 are arranged on the side of the conveyor belt 11 and are used to grab and transport the carrier together with the solid-state relay housing. The flow conveying component 17 is arranged on the side of the carrier reflow belt 14, the solid-state relay discharging conveying component 15 grabs and conveys the solid-state relay housing to the second withstand voltage detection device K, the carrier reflow conveying component 17 grabs and conveys the carrier to the carrier reflow belt 14, and the tail end of the carrier reflow belt 14 is connected to the starting end of the conveyor belt 11. In this embodiment, the tail end of the carrier reflow belt 14 is connected to the starting end of the feed conveyor belt 11 through the storage tray 12, and a pushing mechanism 13 is provided on the side of the storage tray 12. The reflowed carriers 1 are accumulated on the carrier reflow belt 14. After a certain number of them are arranged, the pushing mechanism 13 pushes them into the feed conveyor belt 11 to realize circulation, thereby improving the degree of automation of the production line.

[0021] like Figure 4As shown, the carrier 1 includes a first groove 2 for accommodating a solid-state relay housing 101, a plurality of limiting ribs 3 are provided on the side walls of the first groove 2, a positioning column 4 is provided in the first groove 2, and the positioning column 4 and the limiting rib 3 cooperate so that the solid-state relay housing 101 will not be offset when it is located in the first groove 2. The groove depth of the first groove 2 is less than the height of the solid-state relay housing 101, which is convenient for assembly and inspection. A plurality of positioning holes 5 are provided on the outer side of the bottom of the carrier 1, which are convenient for positioning during grasping without setting up a cumbersome positioning mechanism on the production line, which is conducive to simplifying the production line.

[0022] like Figure 5 As shown, the material feeding and handling assembly A3 includes a material picking claw A21, a first driving cylinder A22 for driving the material picking claw A21 to clamp or release, a slider guide cylinder assembly A23 for driving the material picking claw to move horizontally and vertically is provided on the side of the material picking claw A21, and a positioning protrusion A24 adapted to the positioning hole 5 is provided at the lower end of the material picking claw A21. When the material picking claw A21 grabs the carrier 1 and the solid-state relay housing 101, the positioning protrusion A24 is limited in the positioning hole 5 to prevent the carrier from shaking. A stop column is provided at the upper end of the material picking claw A21, which can limit the solid-state relay housing 101 from moving up and away from the carrier 1, thereby ensuring stable grabbing and handling.

[0023] The solid-state relay discharge and handling assembly 15 has the same structure as the carrier return and handling assembly 17. Taking the solid-state relay discharge and handling assembly 15 as an example, Figure 6 As shown, it includes a discharging and conveying cross plate 21, a slider guide cylinder assembly 25 for driving the discharging and conveying cross plate 21 to move horizontally and vertically, and a transfer frame 26. Two sets of gripper assemblies are arranged on both sides of the discharging and conveying cross plate 21. The gripper assemblies include a clamping gripper 22 and a second driving cylinder 23 for driving the clamping gripper 22 to clamp or release. A silicone pad 24 is arranged at the clamping position of the clamping gripper. The silicone pad 24 can increase the friction between the clamping gripper 22 and the solid-state relay housing 101 on the one hand, making the clamping and grasping more reliable, and on the other hand can avoid clamping The clamping force of the material gripper 22 is too large to damage the solid-state relay housing 101. The transfer rack 26 is arranged on the side of the gripper assembly. The transfer rack 26 is provided with a groove 27 adapted to the solid-state relay housing 101. When the horizontal plate double-handed gripper assembly structure is used for transportation, the gripper assembly on the left grabs the solid-state relay housing from the front conveyor belt to the transfer rack 26, and at the same time, the other gripper assembly on the right synchronously grabs the solid-state relay housing 101 on the transfer rack 26 and transports it to the rear conveyor belt, which effectively shortens the movement path of the gripper assembly and improves efficiency.

[0024] like Figure 7As shown, the automatic nut terminal block assembly device includes a frame A1, on which A1 is provided a feed handling assembly A3, a first material channel A4, a nut installation assembly A5, a nut detection assembly A6, a terminal block installation assembly A7, a terminal block detection assembly A8, a discharge handling assembly A9, a discharge conveyor belt A10, and a defective product conveyor belt A12. Both ends of the first material channel A4 are connected to the conveyor belt 11. The first material channel A4 is provided with a fork transmission assembly. The nut installation assembly A5, the nut detection assembly A6, the terminal block installation assembly A7, and the terminal block detection assembly A8 are sequentially arranged on the side of the first material channel A4 along the material conveying direction. The feed handling assembly A3 transports the solid-state relay housing from the conveyor belt 11 to the first material channel A4. The discharge handling assembly A9 and the defective product conveyor belt A12 are arranged on the side of the discharge conveyor belt A10. The nut detection assembly A6 and the terminal block detection assembly A8 are both probe and probe type detection components, which are prior art and will not be described in detail herein.

[0025] The working process of this device is as follows: The solid-state relay housing connecting carrier is placed on the conveyor belt 11, and is conveyed to the end through the feed conveyor belt 11. The feed conveying assembly A3 conveys the solid-state relay housing connecting carrier at the end of the feed conveyor belt 11 to the first material channel A4, and is conveyed by the fork conveying assembly in sequence through the nut installation assembly A5, the nut detection assembly A6, the terminal board installation assembly A7, and the terminal board detection assembly A8 to install and detect the nuts. After the terminal board is installed and detected, according to the test results, when all the tests are qualified, the assembled solid-state relay housing connecting carrier is continuously conveyed along the conveyor belt 11 to the next process; when the test is unqualified, the unloading conveying assembly A9 has the same structure as the feed conveying assembly A3, and the unqualified products are conveyed to the unqualified product conveyor belt A12. After completing the corresponding process, there is no need to manually transfer the product.

[0026] The nut installation assembly A5 includes a nut feeding mechanism and a nut installation mechanism. The nut feeding mechanism includes a first vibration plate and a nut material channel connected to the first vibration plate. The nut vibration feeding is a prior art and will not be described in detail herein. Figure 8As shown, the nut installation mechanism includes an adapter seat A31, which is arranged at the end of the nut material channel. The adapter seat A31 is provided with a biasing block A32 which can move relative to the adapter seat A31, and the biasing block A32 is provided with two nut grooves A33. The driving cylinder A35 drives the biasing block A32 to move so that the nuts transmitted through the nut material channel fall into the two nut grooves A33 respectively. Two nut suction nozzles A34 and two stripping push rods A36 are provided above the nut grooves A33. The lower end of the nut suction nozzle A34 is provided with a groove for accommodating a single nut, and the upper end of the groove is provided with an annular strong magnet. The stripping push rod A36 is passed through the middle of the annular strong magnet. The nut suction nozzle A34 absorbs the nut through the annular strong magnet. The groove ensures that only a single nut is absorbed each time. A nut push rod A25 is provided below the nut groove A33. The nut push rod A25 pushes the nut in the nut groove A33 into the groove, so that the nut absorption is more stable. A second fixed plate A38 is provided on the side of the nut suction nozzle A34, and a slider guide cylinder assembly A39 is provided on the second fixed plate A38 for driving the second fixed plate A38 to move horizontally and vertically. After the nut suction nozzle A34 sucks the nut in the nut groove A33, it is driven by the slider guide cylinder assembly A39 to move to the first material channel A4, and the stripping ejector rod A36 ejects the nut in the groove downward to the terminal nut installation position of the shell.

[0027] The terminal board installation assembly includes a terminal board feeding mechanism and a terminal board pressing mechanism. Since a total of 4 terminal boards need to be installed, and the positive and negative terminal boards have different styles, in order to improve production efficiency, two sets of terminal board feeding mechanisms are used in this embodiment, such as Figure 7 , 9 As shown, the wiring board feeding mechanism includes a second vibration plate, a wiring board material channel connected to the second vibration plate, a wiring board claw assembly is provided at the end of the wiring board material channel, and the wiring board claw assembly includes a wiring board claw A41 and a pressure rod seat A43. The pressure rod seat A43 is arranged outside the wiring board claw A41 and the lower end extends to the middle of the wiring board claw A41. A pressure rod A42 is provided at the lower end of the pressure rod seat A43, and a spring is provided between the pressure rod A42 and the pressure rod seat A43. Since the wiring board is a thin workpiece, the setting of the pressure rod A42 ensures that it will not loosen during the grasping process. A third fixed plate is provided on the side of the terminal board claw assembly, and a slider guide cylinder assembly for driving the third fixed plate to move horizontally and vertically is provided on the third fixed plate; the terminal board crimping mechanism includes a movable plate A47 and a pressing plate A46, and the movable plate A47 is connected to the pressing plate A46 by a plurality of pressing guide pillars A49, and the pressing guide pillars A49 are provided with buffer springs, and a third driving cylinder A40 for driving the movable plate A47 to move up and down is provided on the upper end of the movable plate A47, and the buffered pressing plate ensures that the thin terminal board will not be crushed, thereby improving the yield rate of the product.

[0028] like Fig.10As shown, the fork transmission assembly includes a sliding plate A53, on which a number of equally spaced shifting claws A52 are arranged. The shifting claws A52 are adapted to the length of the carrier and play a role in preliminary positioning and transmission. A fourth fixed plate A54 is provided on the side of the sliding plate A53, and a slider guide cylinder assembly for driving the fourth fixed plate to move horizontally and vertically is provided on the fourth fixed plate A54. A guide positioning block A51 is provided on the side of the material channel, and a fourth driving cylinder for driving the guide positioning block to move up and down is provided at the lower end of the guide positioning block A51. The guide positioning block A51 plays a role in secondary positioning to ensure accurate positioning when installing nuts and terminal blocks.

[0029] like Fig.11 As shown, the automatic cover-loading device includes a frame B1, on which a second material channel B4, a feed conveying assembly A3, an upper cover feeding assembly B5, an upper cover installation assembly B6, a simulated cover assembly B7, and a discharging conveying assembly are provided. The second material channel B4 is provided with a shift fork transmission assembly. The working process of this device is as follows: the feed conveying assembly A3 transports the solid-state relay housing together with the carrier from the conveyor belt 11 to the second material channel B4, the shift fork transmission assembly transports the solid-state relay housing on the second material channel B4 together with the carrier one by one, the upper cover installation assembly B6 installs the upper cover transported by the upper cover feeding assembly B5 to the surface of the solid-state relay housing, the simulated cover assembly B7 clamps and flips the upper cover and presses it again, and the discharging conveying assembly transports the assembled solid-state relay housing to the discharging conveyor belt B8. In this embodiment, the upper cover feeding assembly B5 is a conventional vibration plate feeding mechanism, which will not be described in detail herein.

[0030] like Figure 12-13 As shown, the upper flip cover installation assembly B6 includes a clamping claw mechanism, a rotating cylinder B13 for driving the clamping claw mechanism to rotate, and a slider guide cylinder assembly B14 for driving the clamping claw mechanism to make lateral and longitudinal displacements. The clamping claw mechanism includes a clamping claw B11 and a fifth driving cylinder for driving the clamping claw to clamp or release. A flip cover positioning block B12 is provided on the side of the clamping claw B11. The lower end of the flip cover positioning block B12 extends to the middle of the clamping claw. A positioning rod B21 corresponding to the upper flip cover hole is provided at the lower end of the flip cover positioning block B12. In this embodiment, the lower end of the positioning rod B21 is a round cone. shape, so that the lower end of the positioning rod B21 is conveniently inserted into the hole of the upper flip cover; a guide expansion block B15 is provided on the side of the material channel B4 corresponding to the flip cover positioning block B12; an outward expansion slope B24 is provided at the front end of the guide expansion block B15; a driving cylinder B16 for driving it to move up and down is provided at the lower end of the guide expansion block B15; a positioning protrusion B22 is provided at the end of the flip cover positioning block B12; a positioning groove B23 is provided on the guide expansion block B15 corresponding to the positioning protrusion B22; a shell positioning block B25 is provided on the side of the positioning groove B23; the shell positioning block B25 cooperates with the fork transmission assembly to position the solid-state relay shell up and down.

[0031] The working process of the upper cover installation assembly B6 is as follows: The driving cylinder B16 drives the guide expansion block B15 downward to position the housing positioning block B25. The rotating cylinder B13 and the slider guide cylinder assembly B14 drive together to insert the positioning rod B21 into the hole of the upper cover to be installed. After the fifth driving cylinder drives the clamping claw B11 to clamp the upper cover, the positioning protrusion B22 of the cover positioning block B12 is driven to be inserted from top to bottom into the positioning slot B23. At this time, the end of the upper cover can be installed to the housing through the expansion bevel B24. Since the upper cover needs to be installed on both sides of the housing, in this embodiment, the second material channel B4 is provided with two symmetrically arranged upper cover installation assemblies B6 to improve production efficiency and realize full-automatic assembly of the upper cover.

[0032] like Fig.14 As shown, the simulated flip cover assembly B7 includes a flip cover claw B31, a sixth driving cylinder B35 for driving the flip cover claw to clamp or release, and a seventh driving cylinder B36 for driving the flip cover claw B31 to move up and down. A clamping positioning block B34 is provided on the side of the flip cover claw B31. The clamping positioning block B34 is provided with a main ejector pin B32 for pressing the solid-state relay housing and four auxiliary ejector pins B33 for pressing the upper flip cover. A rubber pad is provided at the lower end of the main ejector pin B32. The working process of the simulated flip-cover component B7 is as follows: the seventh driving cylinder B36 drives the flip-cover claw B31 to move downward, the sixth driving cylinder B35 drives the flip-cover claw to clamp the upper flip-cover, the seventh driving cylinder B36 drives the flip-cover claw B31 to move upward to perform a simulated flip-cover action, and then the seventh driving cylinder B36 drives the flip-cover claw B31 to move downward again. Since the clamping positioning block B34 is relatively fixed to the flip-cover claw, the clamping positioning block B34 also moves downward, and the main ejector pin B32 and the auxiliary ejector pin B33 move downward together to clamp the upper flip-cover.

[0033] The embodiments should not be regarded as limiting the present invention, and any non-inventive improvements made based on the spirit of the present invention should be regarded as falling within the protection scope of the present invention.

Claims

1. A solid-state relay automatic assembly and testing production line, characterized by: It includes an automatic nut terminal board assembly device, a bending and shaping workbench, an automatic soldering device, a first pressure-resistant detection device, an automatic glue dispensing device, an automatic light guide column and upper cover assembly device, an automatic drying and cooling device, an automatic screw assembly device, an automatic flip cover installation device, a second pressure-resistant detection device, and a material discharging and coding device, which are sequentially connected to form a production line; The automatic nut terminal board assembly device automatically assembles nuts and terminal boards of solid-state relays, the bending and shaping workbench manually bends and shapes the pins to fit the terminal boards, the automatic soldering device solders the pins and terminal boards, the first withstand voltage detection device performs a first withstand voltage detection on the solid-state relay that has been soldered, the automatic glue dispensing device automatically dispenses glue on the solid-state relay that has completed the first withstand voltage detection, the automatic light guide column and upper cover assembly device automatically installs the light guide column and the upper cover on the solid-state relay that has completed the glue dispensing, the automatic drying and cooling device first heats and then cools the solid-state relay that has completed the upper cover installation to solidify the glue, the automatic screw assembly device and the automatic flip cover installation device perform screws, and the flip cover is automatically assembled and then subjected to a second withstand voltage detection by the second withstand voltage detection device, and the material discharging and coding device codes and discharges the solid-state relays that have passed the inspection; The production line is provided with a material moving device, which includes a carrier, a conveyor belt, a carrier reflow belt, a fork conveying assembly, a material feeding and conveying assembly, a solid-state relay material discharging and conveying assembly, and a carrier reflow conveying assembly. The conveyor belt is used to connect between various devices, and the fork conveying assembly is used to convey the carrier and the solid-state relay housing in each device. The material feeding and conveying assembly is arranged on the side of the conveyor belt, and is used to grab and convey the carrier together with the solid-state relay housing. The starting end of the carrier reflow belt is arranged after the flip cover device is automatically installed. The solid-state relay material discharging and conveying assembly and the carrier reflow conveying assembly are arranged on the side of the carrier reflow belt. The solid-state relay material discharging and conveying assembly grabs and conveys the solid-state relay housing to the second withstand voltage detection device, and the carrier reflow conveying assembly grabs and conveys the carrier to the carrier reflow belt. The tail end of the carrier reflow belt is connected to the starting end of the conveyor belt.

2. The solid-state relay automatic assembly and detection production line according to claim 1, characterized in that: The carrier comprises a first groove for accommodating a solid-state relay housing, a plurality of limiting ribs are arranged on the side wall of the first groove, a positioning column is arranged in the first groove, and a plurality of positioning holes are arranged on the outer side of the bottom of the carrier.

3. The solid-state relay automatic assembly and detection production line according to claim 2, characterized in that: The material feeding and handling assembly includes a material picking claw and a first driving cylinder for driving the material picking claw to clamp or loosen. A slider guide cylinder assembly is provided on the side of the material picking claw to drive the material picking claw to move horizontally and vertically. A positioning protrusion that is compatible with the positioning hole is provided at the lower end of the material picking claw.

4. The solid-state relay automatic assembly and testing production line according to claim 1, characterized in that: The shift fork transmission assembly comprises a sliding plate, on which a plurality of shift claws arranged at equal distances are arranged, and on the side of the sliding plate a slider guide cylinder assembly for driving the sliding plate to move horizontally and vertically is arranged.

5. The solid-state relay automatic assembly and testing production line according to claim 1, characterized in that: The solid-state relay unloading and handling assembly has the same structure as the carrier reflux handling assembly, including a unloading and handling cross plate, a slider guide cylinder assembly that drives the unloading and handling cross plate to move horizontally and vertically, and a transfer frame. Two groups of gripper assemblies are provided on both sides of the unloading and handling cross plate. The gripper assembly includes a clamping gripper and a second driving cylinder that drives the clamping gripper to clamp or release the gripper. A silicone pad is provided at the clamping position of the gripper, and the transfer frame is arranged on the side of the gripper assembly.

6. The solid-state relay automatic assembly and testing production line according to claim 1, characterized in that: The automatic nut terminal block assembly device comprises a first material channel, a nut installation assembly, and a terminal block installation assembly, wherein the first material channel is provided with a fork transmission assembly; The nut installation assembly includes a first vibration plate, a nut material channel connected with the first vibration plate, an adapter seat is provided at the end of the nut material channel, a biasing block movable relative to the adapter seat is provided on the adapter seat, two nut slots are provided on the biasing block, two nut suction nozzles and two stripping ejector rods are provided above the nut slots, a second fixed plate is provided on the side of the nut suction nozzle, a slider guide cylinder assembly for driving the second fixed plate to move horizontally and vertically is provided on the second fixed plate, a nut ejector rod is provided below the nut slot, a groove for accommodating a single nut is provided at the lower end of the nut suction nozzle, and the nut ejector rod pushes the nut in the nut slot into the groove; The terminal board installation assembly includes a terminal board feeding mechanism and a terminal board pressing mechanism, the terminal board feeding mechanism includes a second vibration disk, a terminal board material channel connected to the second vibration disk, a terminal board claw assembly is provided at the end of the terminal board material channel, the terminal board claw assembly includes a terminal board claw and a pressure rod seat, the pressure rod seat is arranged on the outside of the terminal board claw and the lower end extends to the middle of the terminal board claw, a pressure rod is provided at the lower end of the pressure rod seat, a spring is provided between the pressure rod and the pressure rod seat, a third fixed plate is provided on the side of the terminal board claw assembly, and a slider guide cylinder assembly for driving the third fixed plate to move horizontally and vertically is provided on the third fixed plate; the terminal board pressing mechanism includes a movable plate and a pressure plate, the movable plate and the pressure plate are connected by a plurality of pressure guide pillars, the pressure guide pillars are provided with a buffer spring, and the upper end of the movable plate is provided with a third driving cylinder for driving the movable plate to move up and down.

7. The solid-state relay automatic assembly and testing production line according to claim 6, characterized in that: A guide positioning block is provided on the side of the first material channel, and a fourth driving cylinder for driving the guide positioning block to move up and down is provided at the lower end of the guide positioning block. A nut detection assembly is provided between the nut installation assembly and the terminal board installation assembly, and a terminal board detection assembly is provided at the rear end of the terminal board installation assembly. A defective product conveyor belt and a defective product transport assembly are provided on the side of the terminal board detection assembly, and the defective product transport assembly transports the defective products to the defective product conveyor belt according to the detection results of the nut detection assembly and the terminal board detection assembly.

8. The solid-state relay automatic assembly and testing production line according to claim 1, characterized in that: The automatic flip-up cover installation device includes a second material channel and an upper flip-up cover installation component. The second material channel is provided with a fork transmission component. The upper flip-up cover installation component includes a clamping claw mechanism, a rotating cylinder driving the clamping claw mechanism to rotate, and a slider guide cylinder component driving the clamping claw mechanism to make lateral and longitudinal displacements. The clamping claw mechanism includes a clamping claw and a fifth driving cylinder driving the clamping claw to clamp or release. A flip-up cover positioning block is provided on the side of the clamping claw. The lower end of the flip-up cover positioning block extends to the middle of the clamping claw. A positioning rod corresponding to the upper flip-up cover hole is provided at the lower end of the flip-up cover positioning block. The lower end of the positioning rod is truncated cone-shaped. A guide expansion block is provided on the side of the material channel corresponding to the flip-up cover positioning block, and an outward expansion inclined surface is provided at the front end of the guide expansion block.

9. The solid-state relay automatic assembly and testing production line according to claim 8, characterized in that: A positioning protrusion is provided at the end of the flip cover positioning block, a positioning slot is provided at the guide expansion block corresponding to the positioning protrusion, a housing positioning block is provided on the side of the positioning slot, and the housing positioning block cooperates with the fork transmission assembly to position the solid-state relay housing up and down.

10. The solid-state relay automatic assembly and testing production line according to claim 8, characterized in that: The automatic flip-up device also includes a simulated flip-up assembly, which includes a flip-up claw, a sixth driving cylinder for driving the flip-up claw to clamp or loosen, and a seventh driving cylinder for driving the flip-up claw to move up and down. A clamping positioning block is provided on the side of the flip-up claw, and the clamping positioning block is provided with a plurality of clamping ejectors. The clamping ejectors include a main ejector for pressing the solid-state relay housing and a secondary ejector for pressing the upper flip-up cover, and a rubber pad is provided at the lower end of the main ejector.

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