Pressure resistance testing device for production of ignition coil

By combining the pneumatic chuck assembly and the drive component, the automatic feeding, pressure testing and indentation detection of ignition coils are realized, which solves the problems of low efficiency and poor consistency of traditional testing, and realizes the automatic classification and collection of qualified and defective products.

CN224152166UActive Publication Date: 2026-04-21LEO ELECTRONICS (NANJING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LEO ELECTRONICS (NANJING) CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional ignition coil pressure testing is inefficient, cannot achieve continuous testing, has poor test consistency, and lacks automatic indentation recognition, resulting in qualified and defective products being mixed together.

Method used

The system employs a pneumatic chuck assembly and drive components to automate the feeding, pressure testing, and indentation detection of ignition coils. It also combines pressure sensors and a detection camera for automatic identification and classification, and uses indicator lights to provide feedback on the results.

Benefits of technology

It has enabled automated production line operation of ignition coils, improving testing efficiency and continuity, and can automatically identify indentations and classify and collect qualified and defective products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pressure resistance testing device for production of an ignition coil, and relates to the technical field of pressure testing. The clamping device comprises a base and a supporting disc supported by a supporting rod, a pneumatic chuck assembly for clamping and limiting an ignition coil body is arranged on the supporting disc and comprises an air cylinder driving structure and at least four clamping mechanisms, and a first supporting plate and a second supporting plate are arranged at the top end of the base. The first supporting plate and the second supporting plate are arranged at the corresponding positions of the two adjacent clamping mechanisms. According to the utility model, the driving component drives the supporting disc to rotate in an indexing manner, and meanwhile, the pneumatic chuck assembly is matched in a limiting manner, so that the automatic line production of feeding, compression resistance testing, indentation detection and discharging of the ignition coil body is realized, the testing efficiency is greatly improved, the shutdown for feeding and discharging is not needed, and the continuity of the testing device is improved; the device is suitable for large-scale compression tests.
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Description

Technical Field

[0001] This utility model relates to the field of pressure testing technology, specifically to a pressure resistance testing device for the production of ignition coils. Background Technology

[0002] The ignition coil is a core component of the ignition system in a car engine. In order to ensure that the engine performs well, the impact resistance of the ignition coil needs to be tested during the production process.

[0003] Traditional ignition coil pressure resistance testing usually involves single-station manual operation, which is inefficient and cannot achieve continuous testing. Existing equipment relies heavily on manual loading and unloading and pressure control, resulting in poor test consistency and a lack of automatic indentation recognition function. This leads to qualified and defective products being mixed together, making it difficult to achieve classified collection.

[0004] Therefore, a pressure resistance testing device for the production of ignition coils is proposed. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a pressure resistance testing device for the production of ignition coils.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A pressure resistance testing device for ignition coil production includes a base and a support disk supported by a support rod. The support disk is equipped with a pneumatic chuck assembly that clamps and limits the ignition coil body. The pneumatic chuck assembly includes a cylinder drive structure and at least four clamping mechanisms. A first support plate and a second support plate are located at the top of the base, positioned at corresponding positions of adjacent clamping mechanisms. A sliding groove is formed on the first support plate, and a lifting component is provided on the groove. The lifting component includes a first motor, a lead screw, and a slider. A compression cylinder is located on one side of the slider, and a connecting plate is connected to the telescopic end of the compression cylinder. A pressure sensor and a compression assembly are located on one side of the connecting plate. A detection camera and an indicator light are located on one side of the second support plate. A drive component is provided on the base to drive the support rod to rotate on the base. The drive component includes a meshing first gear and a second gear, as well as a second motor.

[0008] Furthermore, the bottom of the support disc is provided with a support cover integrally formed therewith, the support cover is rotatably mounted on the base, and the driving component is located inside the support cover.

[0009] Furthermore, the first gear is sleeved on the support rod, the second gear is connected to the main shaft end of the second motor, and the second motor is located at the top of the base.

[0010] Furthermore, the first motor is located at the top of the first support plate, the lead screw is connected to the main shaft end of the first motor, and the slider is slidably disposed inside the slide groove and its thread is threaded onto the lead screw.

[0011] Furthermore, the pressure sensor is disposed on one side of the connecting plate, and a through groove is provided on one side of the connecting plate. The extrusion assembly includes a spring, a slide rod, a fixing plate, and an extrusion block.

[0012] Furthermore, the slide rod is slidably adapted to the through groove, the spring is sleeved on the slide rod, the fixing plate is connected to the slide rod, and the pressing block is disposed on one side of the fixing plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a driving component to drive the indexing rotation of the support disc, and at the same time, the pneumatic chuck assembly provides limiting cooperation to realize the automated assembly line operation of loading, pressure testing, indentation detection and unloading of the ignition coil body. This greatly improves the testing efficiency, eliminates the need for stopping to load and unload, improves the continuity of the testing device, and is suitable for large-scale pressure testing.

[0015] 2. This utility model automatically identifies the quality of indentations through a detection camera, and the linked indicator light provides real-time feedback on the results, making it convenient for sorting workers to classify and collect qualified and defective products. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the support cover of this utility model;

[0018] Figure 3 This is a cross-sectional view of the first support plate of this utility model;

[0019] Figure 4 This is an exploded structural view of the connecting plate and extrusion assembly of this utility model.

[0020] Reference numerals: 1. Base; 2. Support disc; 201. Support rod; 202. Support cover; 3. Pneumatic chuck assembly; 4. Ignition coil body; 5. First support plate; 501. Slide groove; 6. Lifting component; 601. First motor; 602. Lead screw; 603. Slider; 7. Extrusion cylinder; 8. First gear; 801. Second gear; 802. Second motor; 9. Connecting plate; 901. Through groove; 10. Pressure sensor; 11. Extrusion assembly; 1101. Spring; 1102. Slide rod; 1103. Fixing plate; 1104. Extrusion block; 12. Second support plate; 13. Detection camera; 14. Indicator light. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] 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 invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figure 1-4As shown, a pressure resistance testing device for ignition coil production includes a base 1 and a support disk 2 supported by a support rod 201. A pneumatic chuck assembly 3 is provided on the support disk 2 to clamp and limit the ignition coil body 4. The pneumatic chuck assembly 3 includes a cylinder drive structure and at least four clamping mechanisms. A first support plate 5 and a second support plate 12 are provided at the top of the base 1. The first support plate 5 and the second support plate 12 are positioned at corresponding positions of two adjacent clamping mechanisms. A sliding groove 501 is provided on the first support plate 5, and a lifting component 6 is provided on the sliding groove 501. The lifting component 6 includes a first motor 601, a lead screw 602, and a slider 603. A compression cylinder 7 is provided on one side of the slider 603. The telescopic end of the compression cylinder 7 is connected to a connecting plate 9. A pressure sensor 10 and a compression assembly 11 are provided on one side of the connecting plate 9. A detection camera 13 and an indicator light 14 are provided on one side of the second support plate 1. A driving component is provided on the base 1 to drive the support rod 201 to rotate on the base 1. The driving component includes a first gear 8 and a second gear 801 that mesh with each other, as well as a second motor 802. Specifically, the cylinder drive structure and the clamping mechanism are connected by an air pipe. The air pipe is equipped with a solenoid valve that is controlled separately to facilitate the control of different clamping mechanisms. An encoder is installed on the first motor 601 to facilitate real-time feedback of its rotation speed and to achieve precise control of the height of the extrusion assembly 11. The four clamping mechanisms correspond to four different work positions of the ignition coil body 4, and can realize the feeding, pressure test, indentation detection and unloading of the coil body 4 at different positions. The first support plate 5 and the second support plate 12 correspond to the pressure test and indentation detection work positions, respectively.

[0026] like Figure 2 As shown, a support cover 202 integrally formed with the bottom of the support disk 2 is provided. The support cover 202 is rotatably mounted on the base 1, and the driving component is located inside the support cover 202. Specifically, the support cover 202 can improve the stability of the rotation of the support disk 2, and at the same time share the side extrusion force during the compression test.

[0027] like Figure 2 As shown, the first gear 8 is sleeved on the support rod 201, and the second gear 801 is connected to the main shaft end of the second motor 802. The second motor 802 is located at the top of the base 1. Specifically, the operation of the second motor 802 can drive the second gear 801 to rotate, and the meshing of the second gear 801 with the first gear 8 can drive the support rod 201 to rotate, thus driving the support disc 2 to rotate.

[0028] like Figure 3As shown, the first motor 601 is located at the top of the first support plate 5, the lead screw 602 is connected to the main shaft end of the first motor 601, and the slider 603 is slidably disposed inside the slide groove 501 and its thread is sleeved on the lead screw 602; specifically, the operation of the first motor 601 can drive the lead screw 602 to rotate, thus driving the slider 603 to rise and fall, thereby enabling pressure resistance tests to be performed on different positions of the ignition coil body 4.

[0029] like Figure 3 As shown, the pressure sensor 10 is disposed on one side of the connecting plate 9, and a through groove 901 is provided on one side of the connecting plate 9. The extrusion assembly 11 includes a spring 1101, a slide rod 1102, a fixing plate 1103, and an extrusion block 1104.

[0030] like Figure 4 As shown, the slide rod 1102 is slidably adapted to the through groove 901, the spring 1101 is sleeved on the slide rod 1102, the fixing plate 1103 is connected to the slide rod 1102, and the compression block 1104 is disposed on one side of the fixing plate 1103; specifically, the two ends of the spring 1101 are respectively connected to the fixing plate 1103 and the connecting plate 9. When the ignition coil body 4 is subjected to a pressure test, the compression cylinder 7 extends and can push the compression assembly 11 towards the ignition coil body 4. Then, the compression block 1104 first contacts the ignition coil body 4, causing the spring 1101 to compress, thereby allowing the fixing plate 1103 to compress the pressure sensor 10. When the pressure sensor 10 detects that the pressure value has reached the set value, The controller sends a signal to the compressor cylinder 7, which then contracts the cylinder to complete the compression test. The drive unit then rotates the support disc 2, moving the ignition coil body 4, which has completed the compression test, to the position of the second support plate 12. The detection camera 13 then detects the compression marks on the coil body 4. When the compression test is passed, the indicator light 14 illuminates; otherwise, it does not. Thus, the ignition coil body 4 that has completed the indentation test can be classified and collected according to the indication of the indicator light 14. The detection principle of the detection camera 13 and its linkage feedback with the indicator light 14 are existing technologies, so their structure, principle, and model will not be described in detail here.

[0031] In summary: The ignition coil body 4 is fixed by the pneumatic chuck assembly 3 on the support disc 2. The second motor 802 drives the first gear 8 and the second gear 801 to rotate the support rod 201, so that the ignition coil body 4 sequentially passes through the loading, pressure test (first support plate 5 station) and indentation detection (second support plate 12 station). During the pressure test, the first motor 601 adjusts the height of the slider 603 through the lead screw 602, which can perform pressure tests on different positions of the ignition coil body 4. The extrusion cylinder 7 drives the connecting plate 9 and the extrusion assembly 11 to contact the ignition coil body 4. The spring 1101 compresses and triggers the pressure sensor 10 to reach the set value and then automatically stops. Then the support disc 2 rotates to the detection station. The detection camera 13 analyzes the indentation and links the indicator light 14 to turn on / off to achieve automatic detection. After that, at the unloading station, the workers can classify and collect the coils according to the status of the indicator light 14. After that, the loading, pressure test, indentation detection and unloading processes are repeated to perform batch testing of the ignition coil body 4.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A production anti-pressure testing device for an ignition coil, characterized by: The system includes a base (1) and a support disc (2) supported by a support rod (201). The support disc (2) is equipped with a pneumatic chuck assembly (3) that clamps and limits the ignition coil body (4). The pneumatic chuck assembly (3) includes a cylinder drive structure and at least four clamping mechanisms. The top of the base (1) is provided with a first support plate (5) and a second support plate (12). The first support plate (5) and the second support plate (12) are positioned at corresponding positions of two adjacent clamping mechanisms. A sliding groove (501) is provided on the first support plate (501), and a lifting component (6) is provided on the sliding groove (501). The lifting component (6)... The system includes a first motor (601), a lead screw (602), and a slider (603). A compression cylinder (7) is provided on one side of the slider (603). A connecting plate (9) is connected to the telescopic end of the compression cylinder (7). A pressure sensor (10) and a compression assembly (11) are provided on one side of the connecting plate (9). A detection camera (13) and an indicator light (14) are provided on one side of the second support plate (12). A driving component is provided on the base (1) to drive the support rod (201) to rotate on the base (1). The driving component includes a first gear (8) and a second gear (801) that mesh with each other, as well as a second motor (802).

2. The compression resistance testing device for production of an ignition coil according to claim 1, characterized by The bottom of the support disc (2) is provided with an integrally formed support cover (202), the support cover (202) is rotatably mounted on the base (1), and the driving component is located inside the support cover (202).

3. The compression resistance testing device for production of an ignition coil according to claim 1, characterized by The first gear (8) is sleeved on the support rod (201), and the second gear (801) is connected to the spindle end of the second motor (802). The second motor (802) is located at the top of the base (1).

4. The compression resistance testing device for production of an ignition coil according to claim 1, characterized by The first motor (601) is located at the top of the first support plate (5), the lead screw (602) is connected to the main shaft end of the first motor (601), and the slider (603) is slidably disposed inside the slide groove (501) and its thread is sleeved on the lead screw (602).

5. The compression resistance testing device for production of an ignition coil according to claim 1, characterized by The pressure sensor (10) is located on one side of the connecting plate (9), and a through groove (901) is provided on one side of the connecting plate (9). The extrusion assembly (11) includes a spring (1101), a slide rod (1102), a fixing plate (1103), and an extrusion block (1104).

6. The compression resistance testing device for production of an ignition coil according to claim 5, characterized by The slide rod (1102) is slidably adapted to the through groove (901), the spring (1101) is sleeved on the slide rod (1102), the fixing plate (1103) is connected to the slide rod (1102), and the pressing block (1104) is disposed on one side of the fixing plate (1103).