A testing device for the production of ignition coils

Abstract

The present invention discloses a test device for the production of ignition coils, which relates to the technical field of ignition coils. The present invention includes a test bench, on the top of which an upper frame and two horizontally arranged linear guide rails are fixedly installed. Both of the two linear guide rails are located inside the upper frame. Two electric sliders are drivingly installed on the top of each of the linear guide rails. A traveling frame is fixedly installed on the top of the two electric sliders at the same location, and the traveling frame is perpendicular to the linear guide rails. By setting a rotary motor, after the simulated plug rod is inserted into the protective sleeve, the rotary motor can drive the assembly threaded seat to rotate in a direction opposite to the thread rotation direction of the assembly threaded seat through the meshing transmission gears, thereby driving the test terminal to rotate relative to the high-voltage terminal inside the protective sleeve, and then testing the power connection stability of the high-voltage terminal and the test terminal inside the current ignition coil body under dynamic connection.

Description

Technical Field

[0001] The present invention relates to the technical field of ignition coils, and particularly to a testing device for the production of ignition coils. Background Art

[0002] The ignition coil in an automobile engine is used to convert low voltage into high voltage. The structure of the ignition coil mainly includes a housing, a primary coil, a secondary coil, an iron core, a connector plug, a high-voltage terminal, a protective sleeve, etc. Among them, the connector plug is used to connect with the power plug in the vehicle, and the protective sleeve is used to plug into the spark plug to connect the spark plug with the high-voltage terminal in the ignition coil, so as to convert the low voltage provided by the vehicle battery into tens of thousands of volts of high voltage, supply the spark plug to generate an electric spark, and thus ignite the mixed gas in the engine cylinder.

[0003] When the existing ignition coils leave the factory, quality inspection is required. In addition to checking the appearance and assembly quality, the manufacturer also samples the ignition coils and conducts power-on tests. However, the current power-on test equipment only statically connects the power terminal and the output terminal to the connector plug and the high-voltage terminal of the ignition coil respectively. During the actual startup process of the vehicle, the engine will generate a certain vibration when the vehicle ignites, and the static connection cannot simulate the working state of the ignition coil under real conditions. For this reason, a testing device for the production of ignition coils is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the current power-on test equipment only statically connects the power terminal and the output terminal to the connector plug and the high-voltage terminal of the ignition coil respectively. During the actual startup process of the vehicle, the engine will generate a certain vibration when the vehicle ignites, and the static connection cannot simulate the working state of the ignition coil under real conditions. The present invention provides a testing device for the production of ignition coils.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0006] A test device for the production of ignition coils, comprising a test bench. A top part of the test bench is fixedly equipped with an upper frame and two horizontally arranged linear guide rails. Both of the two linear guide rails are located inside the upper frame. Two electric sliders are drivingly installed on top of each of the linear guide rails. A traveling frame is fixedly installed on top of the two electric sliders at the same position. The traveling frame is perpendicular to the linear guide rails. A horizontally arranged placement frame is placed on top of the two traveling frames. A plurality of uniformly distributed placement holes are provided on top of the placement frame. Ignition coil bodies are placed inside the placement holes. A connection plug is fixedly installed on one side of the top end of the ignition coil body. A protective sleeve is fixedly installed at the bottom end of the ignition coil body. A high-voltage terminal is fixedly installed inside the protective sleeve. Above the test bench, a power test connector adapted to the connection plug is provided. Above the test bench, a simulation plug rod adapted to the protective sleeve is provided. A test terminal adapted to the high-voltage terminal is fixedly installed at the top end of the simulation plug rod. A connector control assembly for controlling the docking of the power test connector with each connection plug and a terminal control assembly for controlling the docking of the simulation plug rod with the protective sleeve are provided on top of the test bench.

[0007] Further, the connector control assembly includes a lifting linear module fixedly installed on the top of the test bench. A steering frame is fixedly installed at the telescopic end of the lifting linear module. A horizontally arranged steering shaft is rotatably installed on the steering frame. A steering sleeve rod is fixedly sleeved on the steering shaft. A steering motor is slidably installed on the upper frame. An output shaft of the steering motor is drivingly connected to one end of the steering shaft. A distance-adjusting electric push rod is fixedly installed at one end of the steering sleeve rod. An electric claw is fixedly installed at the telescopic end of the distance-adjusting electric push rod. Two symmetrically arranged plug claws are drivingly installed inside the electric claw. The power test connector is clamped between the two plug claws. A power cord is fixedly installed at the bottom of the power test connector. A power plug is fixedly installed at the bottom end of the power cord. A test line is provided at the bottom end of the simulation plug rod. A test plug is fixedly installed at the bottom end of the test line. Two power connection sockets adapted to the power plug and the test plug respectively are provided on the top of the test bench;

[0008] The terminal control assembly includes a docking plate fixedly installed on the top of the test bench. The docking plate is located between the two linear guide rails. A vertically arranged docking electric push rod is fixedly installed on the top of the docking plate. An assembly thread seat is provided at the telescopic end of the docking electric push rod. An assembly screw rod adapted to the assembly thread seat is fixedly installed at the bottom end of the simulation plug rod. A power connection terminal is fixedly installed at the bottom end of the assembly screw rod. An internal connection terminal adapted to the power connection terminal is provided inside the assembly thread seat. The internal connection terminal is connected to the test line.

[0009] Further, a vertically arranged support telescopic rod is fixedly installed at the top of the docking plate. The telescopic end of the support telescopic rod is fixedly installed with a rotary motor. The top of the rotary motor and the telescopic end of the docking electric push rod are fixedly installed with the same gear box. Two meshing transmission gears are arranged inside the gear box. The output shaft of the rotary motor and the bottom end of the assembly thread seat both extend into the gear box. The two transmission gears are respectively fixedly sleeved on the output shaft of the rotary motor and the bottom end of the assembly thread seat.

[0010] Further, a pressure sensor is arranged inside the simulation plug rod. A plurality of induction ends are arranged on the pressure sensor. A plurality of uniformly distributed detection sliding holes are formed in the circumferential side of the simulation plug rod. Elastic pins are slidably installed inside the detection sliding holes. One ends of the plurality of elastic pins located inside the simulation plug rod are respectively fixedly connected with the plurality of induction ends.

[0011] Further, coil toolings are respectively placed inside the placement holes. Positioning holes are formed in the tops of the coil toolings. A plurality of ignition coil bodies are respectively located inside the plurality of positioning holes. Two positioning fitting rods adapted to the top ends of the ignition coil bodies are fixedly installed at the top of the coil tooling. The two positioning fitting rods are symmetrically distributed on both sides of the ignition coil body. A fastening rubber ring is fixedly installed inside the positioning hole. A support sleeve adapted to the bottom end of the ignition coil body is fixedly installed at the bottom of the coil tooling.

[0012] Further, a plurality of fixing holes are formed in the top of the placement rack. Fastening screw cylinders are fixedly installed inside the fixing holes. The plurality of fastening screw cylinders are respectively located on both sides of the plurality of placement holes. Fastening bolts are screwed inside the fastening screw cylinders. Fastening sector plates are fixedly installed on the side walls of the fastening bolts. The fastening sector plates are all located at the top of the coil tooling. A positioning slot adapted to the bottom end of the fastening screw cylinder is formed in the top of the traveling rack.

[0013] Further, two lifting sliding frames are fixedly installed at the top of the test bench. The placement rack is located between the two lifting sliding frames. Two lifting sliding sleeves are slidably installed on each of the lifting sliding frames. Positioning bolts are screwed on the side walls of the lifting sliding sleeves. The side walls of the two lifting sliding sleeves at the same position are fixedly installed with the same lifting plate. A laser locator and a laser receiver are respectively fixedly installed on one sides of the two lifting plates close to each other.

[0014] Further, a bottom platform is arranged below the test bench. An elastic telescopic platform is fixedly installed on the top of the bottom platform. The test bench is fixedly installed on the telescopic end of the elastic telescopic platform. Vertical vibration motors are fixedly installed on both sides of the test bench. Vibration frames are fixedly installed at the driving ends of the vibration motors. The two vibration frames are respectively fixedly installed on both sides of the test bench.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. By setting the joint control component and the terminal control component, after the plug and the power test joint are aligned, and the protective sleeve and the simulation plug rod are aligned, the distance-adjusting electric push rod drives the power test joint to dock with the plug, limits the ignition coil body, and then the docking electric push rod drives the simulation plug rod to insert into the protective sleeve, and makes the test terminal dock with the high-voltage terminal, completing the automatic power connection of the ignition coil body, so as to realize the automatic test of the ignition coil body and save the test time.

[0017] 2. By setting the rotating motor, after the simulation plug rod is inserted into the protective sleeve, the rotating motor can drive the assembly threaded seat to rotate in the direction opposite to the thread rotation direction of the assembly threaded seat through the meshing transmission gears, thereby driving the test terminal to rotate relative to the high-voltage terminal inside the protective sleeve, and then testing the power connection stability of the high-voltage terminal inside the current ignition coil body and the test terminal under dynamic connection.

[0018] 3. By setting the elastic pins, when the rotating motor drives the simulation plug rod to rotate inside the protective sleeve, multiple elastic pins will move along the inner wall of the protective sleeve. The pressure sensor senses the pressure received by each elastic pin. When there are uneven areas on the inner wall of the protective sleeve, the pressure will change significantly, so that the signal change is detected by the pressure sensor, and then it is detected that the processing quality of the current protective sleeve does not meet the requirements.

[0019] 4. By setting the laser locator and the laser receiver, after the placement rack is placed on the two traveling racks, the laser locator emits laser towards the laser receiver. When the ignition coil bodies on the placement rack are not placed in place, the heights of the multiple ignition coil bodies are different, blocking the laser, so that the laser receiver cannot receive the signal, thus reminding the staff to place the ignition coil bodies again to avoid the plug not being able to dock with the power test joint.

[0020] 5. By setting the vibration motors, after the plug and the power test joint are aligned, and the protective sleeve and the simulation plug rod are aligned, the vibration motors on both sides drive the entire test bench to vibrate slightly up and down through the vibration frames, thereby simulating the working environment when the engine starts and testing the power connection stability of the current ignition coil body under vibration. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the top three-dimensional structure of the test bench of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the placement rack and the ignition coil body of the present invention from a first-person perspective;

[0024] Figure 4 This is a schematic diagram of the third-dimensional structure of the mounting bracket and the ignition coil body according to the present invention from a second viewing angle;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the ignition coil body of the present invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the coil tooling of the present invention from a first perspective;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of the coil tooling of the present invention from a second viewing angle;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the joint control assembly of the present invention;

[0029] Figure 9 This is a schematic diagram of the three-dimensional structure of the terminal control assembly of the present invention;

[0030] Figure 10 This is a schematic diagram of the three-dimensional structure of the test terminal and the power terminal of the present invention;

[0031] Figure 11 This is a schematic diagram of the three-dimensional structure of the laser locator and the laser receiver of the present invention;

[0032] Reference numerals: 1, test bench; 101, upper frame; 2, linear guide rail; 3, electric slider; 4, traveling frame; 5, placement rack; 501, placement hole; 6, ignition coil body; 601, connection plug; 602, protective sleeve; 7, power test connector; 8, power cord; 9, power plug; 10, simulation plug rod; 11, test terminal; 12, test wire; 13, test plug; 14, lifting linear module; 15, alignment frame; 16, alignment shaft; 17, alignment sleeve rod; 18, alignment motor; 19, distance-adjusting electric push rod; 20, electric gripper; 21, plug gripper; 22, assembly screw; 23, power connection terminal; 24, docking plate; 25, docking electric push rod; 26, assembly thread seat; 27, support telescopic rod; 28, rotation motor; 29, gear box; 30, transmission gear; 31, elastic pin; 32, coil tooling; 3201, positioning hole; 33, positioning splicing rod; 34, fastening rubber ring; 35, support sleeve; 36, fastening screw barrel; 37, fastening bolt; 38, fastening sector plate; 39, lifting sliding frame; 40, lifting sliding sleeve; 41, positioning bolt; 42, lifting plate; 43, laser locator; 44, laser receiver; 45, bottom table; 46, elastic telescopic table; 47, vibration motor; 48, vibration frame. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0037] As Figures 1 to 11 shown, a test device for ignition coil production includes a test bench 1. As Figure 1 shown, an upper frame 101 and two horizontally arranged linear guides 2 are fixedly installed on the top of the test bench 1. Both linear guides 2 are located inside the upper frame 101. As Figure 2 shown, two electric sliders 3 are drivingly installed on the top of each linear guide 2. The tops of the two electric sliders 3 at the same position are fixedly installed with a traveling frame 4. The traveling frame 4 is perpendicular to the linear guide 2. In this embodiment, two electric sliders 3 are installed on the top of each linear guide 2. The two traveling frames 4 straddle above the two linear guides 2. The same horizontally arranged placement frame 5 is placed on the tops of the two traveling frames 4. A plurality of uniformly distributed placement holes 501 are opened on the top of the placement frame 5. The ignition coil body 6 is placed inside each placement hole 501. As Figure 5 shown, a connection plug 601 is fixedly installed on one side of the top end of the ignition coil body 6. A protective sleeve 602 is fixedly installed at the bottom end of the ignition coil body 6. A high-voltage terminal is fixedly installed inside the protective sleeve 602. As Figure 2 、 Figure 8 shown, a power test connector 7 adapted to the connection plug 601 is arranged above the test bench 1. As Figure 2 、 Figure 9As shown in the figure, a simulation plug rod 10 adapted to the protective sleeve 602 is arranged above the test bench 1. A test terminal 11 adapted to the high-voltage terminal is fixedly installed at the top end of the simulation plug rod 10. A joint control assembly for controlling the docking of the power test joint 7 with each plug 601 and a terminal control assembly for controlling the docking of the simulation plug rod 10 with the protective sleeve 602 are arranged on the top of the test bench 1. Specifically, when the test equipment for ignition coil production is in use, a plurality of ignition coil bodies 6 are sequentially placed in the placement holes 501 on the placement rack 5, and then the placement rack 5 loaded with the ignition coil bodies 6 is placed on the tops of the two traveling racks 4. Then, the four electric sliders 3 drive the placement rack 5 to move along the linear guide rail 2 through the traveling racks 4 until the plug 601 on the first ignition coil body 6 is aligned with the power test joint 7 and the protective sleeve 602 is aligned with the simulation plug rod 10. At this time, the joint control assembly first drives the power test joint 7 to move towards the ignition coil body 6 and dock with the plug 601, and then the terminal control assembly at the bottom drives the simulation plug rod 10 to lift and dock with the protective sleeve 602, so that the high-voltage terminal inside the protective sleeve 602 is docked with the test terminal 11, so that the ignition coil body 6 is powered on through the power cord 8, the power plug 9, the test line 12, and the test plug 13. Finally, the power-on condition and the power-on stability of the ignition coil body 6 can be tested. After the test is completed, the above operations are repeated to detect all the ignition coil bodies 6.

[0038] As Figure 8 shown, the joint control assembly includes a lifting linear module 14 fixedly installed on the top of the test bench 1. A steering frame 15 is fixedly installed at the telescopic end of the lifting linear module 14. A horizontally arranged steering shaft 16 is rotatably installed on the steering frame 15. A steering sleeve rod 17 is fixedly sleeved on the steering shaft 16. A steering motor 18 is slidably installed on the upper frame 101. The output shaft of the steering motor 18 is drivingly connected to one end of the steering shaft 16. One end of the steering sleeve rod 17 is fixedly installed with a distance-adjusting electric push rod 19. An electric gripper 20 is fixedly installed at the telescopic end of the distance-adjusting electric push rod 19. Two symmetrically arranged plug grippers 21 are internally drivingly installed in the electric gripper 20. The power test joint 7 is clamped between the two plug grippers 21. In this embodiment, the electric gripper 20 can be a common linear actuator on the market, such as a combination of a motor, a double-headed lead screw and a nut sleeve. The two driving ends of the electric gripper 20 and the two plug grippers 21 can be connected by bolts to realize the disassembly and replacement of the plug grippers 21. A power cord 8 is fixedly installed at the bottom of the power test joint 7. A power plug 9 is fixedly installed at the bottom end of the power cord 8. A test line 12 is arranged at the bottom end of the simulation plug rod 10. A test plug 13 is fixedly installed at the bottom end of the test line 12. Two power connection sockets adapted to the power plug 9 and the test plug 13 respectively are arranged on the top of the test bench 1.

[0039] As Figure 9As shown in the figure, the terminal control component includes a docking plate 24 fixedly installed on the top of the test bench 1. The docking plate 24 is located between two linear guide rails 2. A vertically arranged docking electric push rod 25 is fixedly installed on the top of the docking plate 24. An assembly thread seat 26 is arranged at the telescopic end of the docking electric push rod 25. The bottom end of the simulation plug rod 10 is fixedly installed with an assembly screw rod 22 adapted to the assembly thread seat 26. The bottom end of the assembly screw rod 22 is fixedly installed with a power connection terminal 23. An internal connection terminal adapted to the power connection terminal 23 is arranged inside the assembly thread seat 26. The internal connection terminal is connected to the test wire 12. Specifically, by setting the connector control component and the terminal control component, after the plug 601 is aligned with the power test connector 7 and the protective sleeve 602 is aligned with the simulation plug rod 10, the distance adjustment electric push rod 19 drives the electric gripper 20 and the plug gripper 21 to drive the power test connector 7 to move towards the ignition coil body 6 until the power test connector 7 is docked with the plug 601, thereby limiting the ignition coil body 6. Then, the docking electric push rod 25 located at the bottom of the ignition coil body 6 drives the simulation plug rod 10 to lift, so that the simulation plug rod 10 is inserted into the protective sleeve 602, and the test terminal 11 is docked with the high-voltage terminal, completing the automatic power connection of the ignition coil body 6, thus realizing the automatic test of the ignition coil body 6, saving the test time. By setting the lifting linear module 14 and the orientation adjustment motor 18, the lifting linear module 14 and the orientation adjustment motor 18 can respectively adjust the height and angle of the power test connector 7, so as to place different power test connectors 7 between the two plug grippers 21 to adapt to the plugs 601 on different models of ignition coil bodies 6. At the same time, the combination of the assembly thread seat 26 and the assembly screw rod 22 can replace the test terminal 11, so as to adapt to different protective sleeves 602, improving the applicable range of the test equipment.

[0040] As Figure 9 shown, a vertically arranged support telescopic rod 27 is fixedly installed on the top of the docking plate 24. A rotary motor 28 is fixedly installed at the telescopic end of the support telescopic rod 27. The top of the rotary motor 28 and the telescopic end of the docking electric push rod 25 are fixedly installed with the same gear box 29. Two meshing transmission gears 30 are arranged inside the gear box 29. The output shaft of the rotary motor 28 and the bottom end of the assembly thread seat 26 both extend into the gear box 29. The two transmission gears 30 are respectively fixedly sleeved on the output shaft of the rotary motor 28 and the bottom end of the assembly thread seat 26. Specifically, by setting the rotary motor 28, after the simulation plug rod 10 is inserted into the protective sleeve 602, the rotary motor 28 can drive the assembly thread seat 26 to rotate in a direction opposite to the thread rotation direction of the assembly thread seat 26 through the meshing transmission gears 30, thereby driving the test terminal 11 to rotate relative to the high-voltage terminal inside the protective sleeve 602, and then testing the power connection stability of the high-voltage terminal and the test terminal 11 inside the current ignition coil body 6 under dynamic connection.

[0041] As shown Figure 10 in Figure, a pressure sensor is provided inside the simulation plug rod 10. A plurality of sensing ends are provided on the pressure sensor. A plurality of uniformly distributed detection sliding holes are formed on the circumferential side of the simulation plug rod 10. Elastic pins 31 are slidably installed inside the detection sliding holes. One ends of the plurality of elastic pins 31 located inside the simulation plug rod 10 are respectively fixedly connected to the plurality of sensing ends. In this embodiment, the elastic pin 31 can adopt a combination of a spring rod and a ball. Specifically, by providing the elastic pin 31, after the simulation plug rod 10 is inserted into the inner wall of the protective sleeve 602, the rotating motor 28 drives the simulation plug rod 10 to rotate inside the protective sleeve 602. At this time, the plurality of elastic pins 31 on the simulation plug rod 10 will move along the inner wall of the protective sleeve 602. The pressure sensor senses the pressure received by each elastic pin 31. When there are uneven areas on the inner wall of the protective sleeve 602, the pressure received by the elastic pin 31 will change significantly, so that the signal change is detected by the pressure sensor, and then it is detected that the current processing quality of the protective sleeve 602 does not meet the requirements.

[0042] As shown Figure 3 in Figure, coil toolings 32 are respectively placed inside the placing holes 501. In this embodiment, the placing holes 501 are of a double-layer structure. The size of the upper layer is adapted to the size of the coil tooling 32, and the size of the lower layer is smaller than the size of the coil tooling 32. As shown Figure 6 in Figure, positioning holes 3201 are respectively formed at the tops of the coil toolings 32. A plurality of ignition coil bodies 6 are respectively located inside the plurality of positioning holes 3201. Two positioning fitting rods 33 adapted to the top ends of the ignition coil bodies 6 are fixedly installed at the tops of the coil toolings 32. The two positioning fitting rods 33 are symmetrically distributed on both sides of the ignition coil body 6. A fastening rubber ring 34 is fixedly installed inside the positioning hole 3201. As shown Figure 7 in Figure, a support sleeve 35 adapted to the bottom end of the ignition coil body 6 is fixedly installed at the bottom of the coil tooling 32. Specifically, by providing the coil tooling 32, when placing the ignition coil body 6, first place each coil tooling 32 into the placing hole 501, and then turn the ignition coil body 6 into the positioning hole 3201, so that the two positioning fitting rods 33 on both sides limit the ignition coil body 6, make the protective sleeve 602 face the power supply test joint 7, and at the same time, the fastening rubber ring 34 inside the positioning hole 3201 fastens the ignition coil body 6, and the support sleeve 35 limits the bottom end of the ignition coil body 6 to prevent the ignition coil body 6 from being skewed.

[0043] As shown Figure 4 in Figure, a plurality of fixing holes are formed at the top of the placing rack 5. Fastening screw cylinders 36 are fixedly installed inside the fixing holes. The plurality of fastening screw cylinders 36 are respectively located on both sides of the plurality of placing holes 501. As shown Figure 3As shown, fastening bolts 37 are screwed inside the fastening screw cylinders 36. Fastening sector plates 38 are fixedly installed on the side walls of the fastening bolts 37. The fastening sector plates 38 are all located at the top of the coil tooling 32. Positioning slots adapted to the bottom ends of the fastening screw cylinders 36 are provided at the top of the traveling frame 4. Specifically, by providing the fastening bolts 37 and the fastening sector plates 38, after the coil tooling 32 is placed inside the placement hole 501, the fastening bolts 37 on both sides can be rotated to drive the fastening sector plates 38 to spiral downwards, thereby pressing the coil tooling 32 tightly inside the placement hole 501, realizing the limitation of the coil tooling 32, so that the coil tooling 32 can be quickly replaced, realizing the modularization of the tooling, improving the replaceability of the internal components of the test equipment. At the same time, after the placement rack 5 is placed on the two traveling frames 4, some of the fastening screw cylinders 36 at both ends of the bottom of the placement rack 5 will be stuck into the positioning slots on the traveling frame 4 to limit the placement rack 5.

[0044] As Figure 2 shown, two lifting slide frames 39 are fixedly installed on the top of the test bench 1. The placement rack 5 is located between the two lifting slide frames 39. As Figure 11 shown, two lifting slide sleeves 40 are slidably installed on each of the lifting slide frames 39. Positioning bolts 41 are screwed on the side walls of the lifting slide sleeves 40. The same lifting plate 42 is fixedly installed on the side walls of the two lifting slide sleeves 40 at the same position. Laser locators 43 and laser receivers 44 are respectively fixedly installed on one side of the two lifting plates 42 close to each other. Specifically, by providing the laser locators 43 and the laser receivers 44, before testing the ignition coil bodies 6 of the same type, the lifting slide sleeves 40 can be slid and the positioning bolts 41 can be rotated to make one end of the positioning bolt 41 tightly press the lifting slide frame 39 to limit the lifting plate 42, thereby adjusting the heights of the laser locators 43 and the laser receivers 44. After the placement rack 5 is placed on the two traveling frames 4, the laser locators 43 will emit laser towards the laser receivers 44. When the ignition coil bodies 6 on the placement rack 5 are not placed in place, the heights of the multiple ignition coil bodies 6 are different, thereby blocking the laser and making the laser receiver 44 unable to receive signals, so as to remind the staff to place the ignition coil bodies 6 again to avoid the plug 601 being unable to be docked with the power test connector 7.

[0045] As Figure 1As shown in the figure, a bottom platform 45 is provided below the test bench 1. An elastic telescopic platform 46 is fixedly installed on the top of the bottom platform 45. The test bench 1 is fixedly installed on the telescopic end of the elastic telescopic platform 46. Vertical vibration motors 47 are fixedly installed on both sides of the test bench 1. Vibration frames 48 are fixedly installed on the driving ends of the vibration motors 47. The two vibration frames 48 are respectively fixedly installed on both sides of the test bench 1. Specifically, by setting the vibration motors 47, after the plug 601 is aligned with the power test connector 7 and the protective sleeve 602 is aligned with the simulation plug rod 10, the vibration motors 47 on both sides will drive the entire test bench 1 to vibrate slightly up and down through the vibration frames 48, so as to simulate the working environment during engine startup and test the power connection stability of the current ignition coil body 6 under the action of vibration.

[0046] In summary: Before the test: First, put each coil tooling 32 into the placement hole 501, then turn the ignition coil body 6 into the positioning hole 3201, so that the positioning and splicing rods 33 on both sides limit the ignition coil body 6, make the protective sleeve 602 face the power test connector 7, and at the same time, the fastening rubber ring 34 inside the positioning hole 3201 fastens the ignition coil body 6. Then place the coil tooling 32 inside the placement hole 501, rotate the fastening bolts 37 on both sides, drive the fastening sector plate 38 to spiral down, and then press the coil tooling 32 tightly inside the placement hole 501. After that, place the placement rack 5 loaded with the ignition coil body 6 on the tops of the two traveling racks 4. The laser locator 43 will emit laser towards the laser receiver 44. When the ignition coil body 6 on the placement rack 5 is not placed in place, the heights of multiple ignition coil bodies 6 are different, so as to block the laser, making the laser receiver 44 unable to receive the signal, thus reminding the staff to place the ignition coil body 6 again. Then the four electric sliders 3 drive the placement rack 5 to move along the linear guide rail 2 through the traveling racks 4 until the plug 601 on the first ignition coil body 6 is aligned with the power test connector 7 and the protective sleeve 602 is aligned with the simulation plug rod 10;

[0047] During testing: The distance-adjusting electric push rod 19 drives the electric gripper 20 and the plug gripper 21 to drive the power supply test joint 7 to move towards the ignition coil body 6 until the power supply test joint 7 is docked with the plug 601, thereby limiting the ignition coil body 6. Then, the docking electric push rod 25 located at the bottom of the ignition coil body 6 drives the simulation plug 10 to lift, so that the simulation plug 10 is inserted into the protective sleeve 602, and the test terminal 11 is docked with the high-voltage terminal, completing the automatic power connection of the ignition coil body 6, so as to realize the automatic test of the ignition coil body 6. After the simulation plug 10 is inserted into the protective sleeve 602, the rotation motor 28 can drive the assembly threaded seat 26 to rotate in the direction opposite to the thread rotation direction of the assembly threaded seat 26 through the engaged transmission gear 30, thereby driving the test terminal 11 to rotate relative to the high-voltage terminal inside the protective sleeve 602, and then testing the power connection stability of the high-voltage terminal inside the current ignition coil body 6 and the test terminal 11 under dynamic connection. At this time, the multiple elastic pins 31 on the simulation plug 10 will move along the inner wall of the protective sleeve 602, and the pressure sensor senses the pressure received by each elastic pin 31. When there are uneven areas on the inner wall of the protective sleeve 602, the pressure received by the elastic pin 31 will change significantly, so that the signal change is detected by the pressure sensor, and then it is detected that the processing quality of the current protective sleeve 602 does not meet the requirements. At the same time, the vibration motors 47 on both sides drive the test bench 1 to vibrate slightly up and down through the vibration frame 48, so as to simulate the working environment during engine startup and test the power connection stability of the current ignition coil body 6 under vibration. Then, the joint control component and the terminal control component are reset, and the placement rack 5 continues to move. By repeating the above operations, all the ignition coil bodies 6 can be detected.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the principles described in the specification are only the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A test device for the production of ignition coils, characterized in that, Including a test bench (1), on the top of the test bench (1), an upper frame (101) and two horizontally arranged linear guide rails (2) are fixedly installed. Both of the two linear guide rails (2) are located inside the upper frame (101). On the top of each of the linear guide rails (2), two electric sliders (3) are drivingly installed. On the top of the two electric sliders (3) at the same position, a traveling frame (4) is fixedly installed. The traveling frame (4) is perpendicular to the linear guide rail (2). On the top of the two traveling frames (4), the same horizontally arranged placing frame (5) is placed. On the top of the placing frame (5), a plurality of uniformly distributed placing holes (501) are formed. Inside each of the placing holes (501), an ignition coil body (6) is placed. On one side of the top end of the ignition coil body (6), a connection plug (601) is fixedly installed. At the bottom end of the ignition coil body (6), a protective sleeve (602) is fixedly installed. Inside the protective sleeve (602), a high-voltage terminal is fixedly installed. Above the test bench (1), a power supply test connector (7) adapted to the connection plug (601) is provided. Above the test bench (1), a simulation plug rod (10) adapted to the protective sleeve (602) is provided. At the top end of the simulation plug rod (10), a test terminal (11) adapted to the high-voltage terminal is fixedly installed. At the bottom end of the power supply test connector (7), a power cord (8) is fixedly installed. At the bottom end of the power cord (8), a power plug (9) is fixedly installed. At the bottom end of the simulation plug rod (10), a test wire (12) is provided. At the bottom end of the test wire (12), a test plug (13) is fixedly installed. On the top of the test bench (1), two power connection sockets adapted to the power plug (9) and the test plug (13) respectively are provided. On the top of the test bench (1), a connector control assembly for controlling the docking of the power supply test connector (7) with each connection plug (601) and a terminal control assembly for controlling the docking of the simulation plug rod (10) with the protective sleeve (602) are provided; The terminal control assembly includes a docking plate (24) fixedly installed on the top of the test bench (1). The docking plate (24) is located between the two linear guide rails (2). A vertically arranged docking electric push rod (25) is fixedly installed on the top of the docking plate (24). An assembly threaded seat (26) is arranged at the telescopic end of the docking electric push rod (25). An assembly screw rod (22) adapted to the assembly threaded seat (26) is fixedly installed at the bottom end of the simulation plug rod (10). A power connection terminal (23) is fixedly installed at the bottom end of the assembly screw rod (22). An internal connection terminal adapted to the power connection terminal (23) is arranged inside the assembly threaded seat (26). The internal connection terminal is connected to the test wire (12). A vertically arranged support telescopic rod (27) is fixedly installed on the top of the docking plate (24). A rotary motor (28) is fixedly installed at the telescopic end of the support telescopic rod (27). A gear box (29) is fixedly installed at the top of the rotary motor (28) and the telescopic end of the docking electric push rod (25). Two meshing transmission gears (30) are arranged inside the gear box (29). The output shaft of the rotary motor (28) and the bottom end of the assembly threaded seat (26) both extend into the gear box (29). The two transmission gears (30) are respectively fixedly sleeved on the output shaft of the rotary motor (28) and the bottom end of the assembly threaded seat (26). A pressure sensor is arranged inside the simulation plug rod (10). A plurality of induction ends are arranged on the pressure sensor. A plurality of uniformly distributed detection sliding holes are formed on the circumferential side of the simulation plug rod (10). Elastic pins (31) are slidably installed inside the detection sliding holes. One ends of the plurality of elastic pins (31) located inside the simulation plug rod (10) are respectively fixedly connected to the plurality of induction ends.

2. The test equipment for ignition coil production according to claim 1, characterized in that, The joint control assembly includes a lifting linear module (14) fixedly installed on the top of the test bench (1). A steering frame (15) is fixedly installed at the telescopic end of the lifting linear module (14). A horizontally arranged steering shaft (16) is rotatably installed on the steering frame (15). A steering sleeve rod (17) is fixedly sleeved on the steering shaft (16). A steering motor (18) is slidably installed on the upper frame (101). The output shaft of the steering motor (18) is drivingly connected to one end of the steering shaft (16). A distance adjustment electric push rod (19) is fixedly installed at one end of the steering sleeve rod (17). An electric claw (20) is fixedly installed at the telescopic end of the distance adjustment electric push rod (19). Two symmetrically arranged plug claws (21) are drivingly installed inside the electric claw (20). The power test joint (7) is clamped between the two plug claws (21).

3. The test equipment for ignition coil production according to claim 1, characterized in that, Inside the placement holes (501), coil toolings (32) are placed. Positioning holes (3201) are formed at the tops of the coil toolings (32). A plurality of ignition coil bodies (6) are respectively located inside the plurality of positioning holes (3201). Two positioning fitting rods (33) adapted to the tops of the ignition coil bodies (6) are fixedly installed at the tops of the coil toolings (32). The two positioning fitting rods (33) are symmetrically distributed on both sides of the ignition coil body (6). A fastening rubber ring (34) is fixedly installed inside the positioning hole (3201). A support sleeve (35) adapted to the bottom end of the ignition coil body (6) is fixedly installed at the bottom of the coil tooling (32).

4. The testing device for ignition coil production according to claim 3, characterized in that, A plurality of fixing holes are formed at the top of the placement rack (5). Fastening screw cylinders (36) are fixedly installed inside the fixing holes. The plurality of fastening screw cylinders (36) are respectively located on both sides of the plurality of placement holes (501). Fastening bolts (37) are screwed inside the fastening screw cylinders (36). Fastening sector plates (38) are fixedly installed on the side walls of the fastening bolts (37). The fastening sector plates (38) are all located at the top of the coil tooling (32). A positioning slot adapted to the bottom end of the fastening screw cylinder (36) is formed at the top of the traveling rack (4).

5. The testing device for ignition coil production according to claim 1, characterized in that, Two lifting sliding frames (39) are fixedly installed at the top of the test bench (1). The placement rack (5) is located between the two lifting sliding frames (39). Two lifting sliding sleeves (40) are slidably installed on each of the lifting sliding frames (39). Positioning bolts (41) are screwed on the side walls of the lifting sliding sleeves (40). The side walls of the two lifting sliding sleeves (40) at the same position are fixedly installed with the same lifting plate (42). Laser positioning instruments (43) and laser receivers (44) are respectively fixedly installed on one side of the two lifting plates (42) close to each other.

6. The test equipment for ignition coil production according to claim 1, characterized in that, A base table (45) is arranged below the test bench (1). An elastic telescopic table (46) is fixedly installed at the top of the base table (45). The test bench (1) is fixedly installed on the telescopic end of the elastic telescopic table (46). Vertical vibration motors (47) are fixedly installed on both sides of the test bench (1). Vibration frames (48) are fixedly installed at the driving ends of the vibration motors (47). The two vibration frames (48) are respectively fixedly installed on both sides of the test bench (1).

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