Detection and material distribution integrated mechanism for automobile safety airbag sensor detection

By designing an integrated detection and material distribution mechanism that includes a base, a transverse base, a positioning base, and a photoelectric sensor, the problems of pin bending and housing deformation during sensor transport were solved. This enabled synchronous material distribution and detection of the sensor, simplified the laser welding station, and ensured welding quality and production efficiency.

CN224058911UActive Publication Date: 2026-03-31KUNSHAN JINGHUA AUTOMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

During transportation, automotive airbag sensors are prone to pin bending and housing deformation, which necessitates the addition of a visual inspection mechanism, increasing the complexity and cost of the laser welding station.

Method used

An integrated detection and material distribution mechanism for automotive airbag sensor detection is adopted, including a base, a transverse base, a positioning base, a pin positioning plate, and a photoelectric sensor. The sensor is simultaneously distributed and detected through vacuum adsorption and photoelectric detection, avoiding the need for an additional visual inspection mechanism.

Benefits of technology

The simplified laser welding station structure ensures laser welding quality and avoids sensor deformation during material distribution, thereby improving sensor reliability and production efficiency.

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Abstract

The utility model discloses a detecting and distributing integrated mechanism for detecting an automobile safety air bag sensor. The detecting and distributing integrated mechanism comprises a seat body; the transverse moving seat is fixedly mounted at the output end of the first driving air cylinder; a sensor positioning groove is formed in the positioning seat; the pin positioning plate is fixedly mounted at the output end of the second driving cylinder; the first photoelectric sensor is fixedly mounted on the transverse moving seat; wherein an opening is formed in one side of the sensor positioning groove, and the position of the opening of the sensor positioning groove corresponds to the discharging opening of the feeding rail. Compared with the prior art, the visual inspection mechanism solves the problem that a visual inspection mechanism needs to be additionally arranged after a preliminarily assembled automobile safety air bag sensor is conveyed and before laser welding.
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Description

Technical Field

[0001] This utility model relates to the field of automotive airbag sensor manufacturing technology, and in particular to an integrated detection and material sorting mechanism for automotive airbag sensor testing. Background Technology

[0002] When a vehicle is impacted, the airbag sensor ignites propellant, causing the airbag to inflate. The airbag sensor consists of a housing, pins, and propellant.

[0003] In the manufacturing process of automotive airbag sensors, after the pins and housing are initially connected and assembled, they need to be transferred to the laser welding station for laser welding.

[0004] However, the sensors that are initially assembled are prone to problems such as bent pins and deformed shell edges during transportation. This means that after the individual sensors are fed by the material distribution mechanism at the end of the feeding track but before laser welding, an additional vision inspection mechanism is needed to inspect the sensors being fed. This increases the structural complexity and space occupied by the laser welding station, and increases equipment costs. Utility Model Content

[0005] The purpose of this invention is to provide an integrated detection and material sorting mechanism for automotive airbag sensors, so as to solve the problem that an additional visual inspection mechanism is needed after the initial assembly of automotive airbag sensors is transported and before laser welding.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an integrated detection and material distribution mechanism for automotive airbag sensor detection, comprising:

[0007] seat body;

[0008] A transverse sliding seat is fixedly installed at the output end of the first drive cylinder;

[0009] A positioning base, on which a sensor positioning slot is provided;

[0010] A pin positioning plate is fixedly installed at the output end of the second drive cylinder;

[0011] The first photoelectric sensor is fixedly mounted on the transverse sliding base;

[0012] The sensor positioning slot has an opening on one side, which corresponds to the outlet of the feeding track. The sensor is placed in the feeding track. The through hole on the bottom of the sensor positioning slot is connected to the air pipe connector, which is connected to the vacuum generator. The pin positioning plate has a notch at the end for positioning the sensor pins. The second drive cylinder is fixedly installed on the transverse moving seat. The laser emitting end and laser receiving end of the first photoelectric sensor are on the same straight line as the sensor positioning slot.

[0013] As a further description of the above technical solution:

[0014] The positioning base is equipped with a groove that passes through the sensor positioning groove.

[0015] As a further description of the above technical solution:

[0016] A stop is provided on one side of the feeding track, and the stop is fixedly installed on the bracket.

[0017] As a further description of the above technical solution:

[0018] The bracket has a waist-shaped hole, and the locking bolt passes through the waist-shaped hole and connects to the stop block.

[0019] As a further description of the above technical solution:

[0020] A cover plate is provided on one side of the track groove of the feeding track, and a pad is provided between the cover plate and the surface of the feeding track.

[0021] As a further description of the above technical solution:

[0022] A second photoelectric sensor is installed on the side wall of the feeding track, and the second photoelectric sensor faces the track groove of the feeding track.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0024] 1. In this utility model, the sensor is detected while the initial assembled sensor is being sorted, eliminating the need for an additional visual inspection mechanism. This simplifies the laser welding station for automotive airbag sensors and ensures the quality of laser welding.

[0025] 2. In this utility model, the notch at the end of the pin positioning plate positions the sensor pin, which can prevent the sensor from rotating during the material distribution process and facilitate the subsequent material handling mechanism to clamp the sensor through the pin. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an integrated detection and material distribution mechanism for detecting automotive airbag sensors.

[0028] Figure 2 This is a schematic diagram of the feeding track in an integrated detection and material distribution mechanism for automotive airbag sensor detection.

[0029] Figure 3 A schematic diagram of an integrated detection and material dispensing mechanism for detecting automotive airbag sensors. Figure 1 .

[0030] Figure 4 A schematic diagram of an integrated detection and material dispensing mechanism for detecting automotive airbag sensors. Figure 1 one.

[0031] Figure 5 A schematic diagram of an integrated detection and material dispensing mechanism for detecting automotive airbag sensors. Figure 3 .

[0032] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0033] Legend:

[0034] 1. Base; 2. Transverse base; 21. First drive cylinder; 3. Positioning base; 31. Sensor positioning slot; 311. Air pipe connector; 32. Slot; 4. Pin positioning plate; 41. Second drive cylinder; 42. Notch; 5. First photoelectric sensor; 6. Stop block; 61. Bracket; 611. Waist-shaped hole; 9. Feeding track; 91. Sensor; 92. Cover plate; 93. Second photoelectric sensor. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1

[0037] Please see Figure 1-6 This utility model provides a technical solution: an integrated detection and material distribution mechanism for automotive airbag sensor detection, comprising:

[0038] base body 1;

[0039] The transverse shifter 2 is fixedly installed at the output end of the first drive cylinder 21;

[0040] Positioning seat 3, on which a sensor positioning groove 31 is provided;

[0041] Pin positioning plate 4 is fixedly installed at the output end of the second drive cylinder 41;

[0042] The first photoelectric sensor 5 is fixedly mounted on the transverse sliding seat 2;

[0043] The sensor positioning groove 31 has an opening on one side, and the opening of the sensor positioning groove 31 corresponds to the discharge port of the feeding track 9. The sensor 91 is placed in the feeding track 9. The through hole on the bottom surface of the sensor positioning groove 31 is connected to the air pipe connector 311, and the air pipe connector 311 is connected to the vacuum generator. The pin positioning plate 4 has a notch 42 at its end for positioning the pins of the sensor 91. The second drive cylinder 41 is fixedly installed on the transverse shift seat 2. The laser emitting end and the laser receiving end of the first photoelectric sensor 5 are on the same straight line as the sensor positioning groove 31.

[0044] While the initially assembled sensors are being sorted, sensor inspection is also performed, eliminating the need for an additional vision inspection mechanism. This simplifies the laser welding station for automotive airbag sensors while ensuring welding quality. The notches at the ends of the pin positioning plate 4 position the sensor pins, preventing sensor rotation during sorting and facilitating subsequent sensor pickup by the picking mechanism.

[0045] Working principle: The car airbag sensor to be laser welded is conveyed through the feeding track 9. The vertical vibration below the feeding track 9 causes the sensor 91 to be conveyed in a straight line and enter the sensor positioning groove 31 through the discharge port, where it is adsorbed and positioned. At this time, the pin on the upper side of the sensor 91 is inserted into the notch 42 at the end of the pin positioning plate 4. The height of the first photoelectric sensor 5 corresponds to the flange of the sensor 91 housing. If the pin or housing of the sensor 91 is deformed, it cannot be inserted into the sensor positioning groove 31 smoothly, and thus cannot be detected by the first photoelectric sensor 5. This effectively prevents the sensor 91 with deformed housing or pin from continuing to be welded.

[0046] Subsequently, for the sensor 91 detected by the first photoelectric sensor 5 and located in the sensor positioning slot 31, the first drive cylinder 21 pushes the transverse sliding seat 2 to slide horizontally, and the positioning seat 3 and the pin positioning plate 4 move to one side of the feeding track 9 to achieve material distribution. Then, the pin positioning plate 4 is driven by the second drive cylinder 41 to retract and disengage from the sensor pin, the sensor is released from adsorption, and the sensor can be picked up from above by the material picking mechanism.

[0047] Example 2

[0048] Based on the above embodiments, this embodiment further improves upon the following technical solution: a groove 32 is provided on the positioning seat 3, and the groove 32 passes through the sensor positioning groove 31.

[0049] The position and height of the groove 32 correspond to the laser emitted by the first photoelectric sensor 5, enabling the first photoelectric sensor 5 to accurately detect the sensor inside the positioning seat 3. Simultaneously, it facilitates determining the installation position of the first photoelectric sensor 5, ensuring detection effectiveness.

[0050] Example 3

[0051] Based on the above embodiments, this embodiment further improves upon the following technical solution: a stop block 6 is provided on one side of the feeding track 9, and the stop block 6 is fixedly installed on the bracket 61.

[0052] During material distribution, the sensor positioning groove 31 of the positioning seat 3 moves laterally to the alignment block 6, and the block closes the opening on one side of the sensor positioning groove 31 to prevent the sensor from falling out of the sensor positioning groove 31.

[0053] Example 4

[0054] Based on the above embodiments, this embodiment further improves upon the following technical solution: a waist-shaped hole 611 is provided on the bracket 61, and the locking bolt passes through the waist-shaped hole 611 and connects to the stop block 6, so that the installation position of the stop block 6 is adjustable.

[0055] Example 5

[0056] Based on the above embodiments, this embodiment further improves upon the following technical solution: a cover plate 92 is provided on the opposite side of the track groove of the feeding track 9, and a pad is provided between the cover plate 92 and the surface of the feeding track 9.

[0057] The sensor 91 is conveyed in a straight line within the track groove of the feeding track 9. The cover plate 92 can effectively position the pins of the sensor 91 and prevent the sensor 91 from rotating.

[0058] Example 6

[0059] Based on the above embodiments, this embodiment further improves upon the following technical solution: a second photoelectric sensor 93 is provided on the side wall of the feeding track 9, and the second photoelectric sensor 93 faces the track groove of the feeding track 9.

[0060] The pad creates a gap between the cover plate 92 and the surface of the feeding track 9. The laser emitted by the second photoelectric sensor 93 passes through this gap to monitor whether the sensor 91 inside the feeding track 9 is short of material.

[0061] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A detection and distribution integrated mechanism for an automobile airbag sensor detection, characterized by, Include: The seat body; The horizontal moving seat is fixedly installed on the output end of the first driving cylinder; The positioning seat is provided with a sensor positioning groove; The pin positioning plate is fixedly installed on the output end of the second driving cylinder; The first photoelectric sensor is fixedly installed on the horizontal moving seat; Wherein, the sensor positioning groove is provided with an opening on one side, the opening position of the sensor positioning groove corresponds to the discharge port of the feeding track, the sensor is placed in the feeding track, the through hole of the bottom surface of the sensor positioning groove is connected with the air pipe joint, the air pipe joint is connected with the vacuum generating device, the end of the pin positioning plate is provided with a notch for positioning the pin of the sensor, the second driving cylinder is fixedly installed on the horizontal moving seat, the laser emitting end and the laser receiving end of the first photoelectric sensor are in a straight line with the sensor positioning groove.

2. The detection and distribution integrated mechanism for an airbag sensor of an automobile according to claim 1, wherein The positioning seat is provided with a groove, and the groove passes through the sensor positioning groove.

3. The detection and distribution integrated mechanism for detecting an airbag sensor of an automobile according to claim 1, wherein One side of the feeding track is provided with a stop block, and the stop block is fixedly installed on the support.

4. The detection and distribution integrated mechanism for an airbag sensor of an automobile according to claim 3, wherein The support is provided with a waist-shaped hole, and a locking bolt passes through the waist-shaped hole to connect the stop block.

5. The detecting and distributing integrated mechanism for detecting an airbag sensor of an automobile according to claim 1, wherein One opposite side of the track groove of the feeding track is provided with a cover plate, and a cushion block is arranged between the cover plate and the surface of the feeding track.

6. The detection and distribution integrated mechanism for an airbag sensor of an automobile according to claim 1, wherein A second photoelectric sensor is arranged on the side wall of the feeding track, and the second photoelectric sensor faces the track groove of the feeding track.