CN217716319U

CN217716319U - Air bag check out test set

Info

Publication number: CN217716319U
Application number: CN202221896781.3U
Authority: CN
Inventors: 罗清玉; 马良
Original assignee: Guangzhou Zhenghai Technology Development Co ltd
Current assignee: Guangzhou Zhenghai Technology Development Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-11-01
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to an automobile part detection device, in particular to an air bag detection device, which comprises a clamp structure connected with a steering wheel, an electrical component arranged on the clamp structure, a first laser sensor, a second laser sensor and a third laser sensor for measuring distance data; the laser sensor is arranged below the clamp structure and is connected with the electrical assembly; the first laser sensor emits a light spot of a reference point, the second laser sensor emits a light spot of a first measuring point, the third laser sensor emits a light spot of a second measuring point, and the three projections of the light spots on the safety air bag are detection position points of the safety air bag. The utility model discloses set up laser sensor at anchor clamps structural, install anchor clamps structure location on the steering wheel to obtain distance data through laser sensor transmission and receipt laser, improved detection precision, accuracy and speed.

Description

Air bag check out test set

Technical Field

The utility model relates to an automobile parts check out test set especially relates to an air bag check out test set.

Background

The vehicle type main airbag of the current automobile manufacturers adopts a bayonet lock mode, and original bolt fastening is cancelled. In order to ensure the follow-up tracing management, the gap measurement is carried out after the air bag is installed. In the gap measurement mode, the current automobile manufacturers generally adopt a laser emitter to emit light spots, and then a vision system is used for photographing and analyzing the light spots to obtain measurement data. However, the visual measurement method is easily affected by factors such as ambient light source and vibration, so that abnormal misjudgment often occurs during detection, and the detection speed is slow during use.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the invention aims to provide an airbag detection device, wherein a laser sensor is arranged on an airbag detection clamp, and distance data can be acquired by emitting and receiving laser through the laser sensor, so that the detection precision, accuracy and speed are improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an airbag detection device comprises a clamp structure connected with a steering wheel, an electrical assembly arranged on the clamp structure, a first laser sensor, a second laser sensor and a third laser sensor, wherein the first laser sensor, the second laser sensor and the third laser sensor are used for measuring distance data;

the laser sensor is arranged below the clamp structure and is connected with the electrical assembly; the first laser sensor emits light spots of the datum point, the second laser sensor emits light spots of the first measuring point, the third laser sensor emits light spots of the second measuring point, and the three light spots are projected on the safety air bag to form detection position points of the safety air bag.

In a preferred embodiment, the clamp structure comprises a support bracket, a positioning pin, a sensor bracket, a first protection cover and a connecting piece;

the sensor support is arranged below the support frame, and the first laser sensor, the second laser sensor and the third laser sensor are fixed on the sensor support; the first protective cover is arranged on the supporting frame;

one end of the connecting piece is connected with the supporting frame, and the other end of the connecting piece is connected with the positioning pin and is inserted into the positioning hole of the steering wheel through the positioning pin.

Further preferably, the clamp structure further comprises a clamp auxiliary positioning block; one end of the connecting piece, which is connected with the positioning pin, extends along two sides of the connecting piece body, the formed extending part is used for installing the auxiliary positioning block of the clamp, and the extending connecting piece is integrally of an inverted T-shaped structure.

Further preferably, the clamp structure further comprises a second protective cover, and the second protective cover is arranged below the support frame and located on the outer side of the connecting piece.

Preferably, the airbag detection device further comprises a gauge structure for verifying the laser sensor.

Further preferably, the gauge structure comprises a mounting plate and a gauge calibration block combination; positioning pin holes used for being matched with the positioning pins are formed in two sides of the mounting plate, a groove is formed in the middle of the upper portion of the mounting plate, and the width of the groove is matched with that of the checking fixture calibration block; the gauge calibration block is placed on the groove of the mounting plate, and two side faces of the gauge calibration block are in sliding fit with the side faces of the groove.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model arranges the laser sensor on the detection clamp, can obtain distance data by emitting and receiving laser through the laser sensor, and has high detection precision; the laser sensor is not easily influenced by factors such as an ambient light source and vibration in the using process, and the detection accuracy is good; the utility model discloses set up 3 laser sensor on anchor clamps, can measure 3 check points simultaneously, detection speed is fast. Furthermore, the utility model discloses still set up wireless SRS system, by server net twine connection router, the miniature PC host computer communication on rethread wireless WIFI and the anchor clamps carries out the interaction of data, has improved follow-up data management's traceability.

Drawings

FIG. 1 is a schematic view of the overall structure of the airbag detection device of the present invention;

FIG. 2 is a schematic view of a clamp portion of the airbag detection apparatus of the present invention;

FIG. 3 is a schematic view of a part of a checking fixture of the airbag detection apparatus of the present invention;

FIG. 4 is a control schematic block diagram of the airbag detection apparatus of the present invention;

FIG. 5 is a schematic view of the working process of the airbag detecting apparatus of the present invention;

FIG. 6 is a schematic view of the airbag detecting device according to the present invention;

description of reference numerals: 1. the device comprises a clamp structure, 11, a support frame, 12, a positioning pin, 13, a sensor support, 14, a clamp auxiliary positioning block, 15, a first protective cover, 16, a connecting piece, 17, a second protective cover, 2, a detection tool structure, 21, a mounting plate, 22, a supporting leg, 23, a detection tool calibration block combination, 231, a single-step two-hole calibration block, 232, a three-step calibration block, 3, an electrical component, 31, an energy storage battery pack, 32, an IO module, 33, an analog quantity acquisition module, 34, a micro PC host, 35, an OK lamp, 36, an NG lamp, 37, a mode selection switch, 38, a first starting button, 39, a second starting button, 40, a reset button, 41, a power supply button, 42, an electric quantity indicator and 4, and a laser sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope protected by the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Examples

As shown in fig. 1, the airbag detection apparatus of the present embodiment includes a clamp structure 1 for connecting with a steering wheel, an electrical component 3 disposed on the clamp structure, and at least three laser sensors 4 for measuring distance data, that is, a first laser sensor, a second laser sensor and a third laser sensor are included, and all the three laser sensors are disposed below the clamp structure and connected with the electrical component 3, the first laser sensor emits a light spot of a reference point a, the second laser sensor emits a light spot of a first measurement point B, and the third laser sensor emits a light spot of a second measurement point C, and the projection of the three light spots on the airbag is a detection position point of the airbag, as shown in fig. 6.

In the present embodiment, three laser sensors 4 are used as an example, but the number of laser sensors in the embodiment of the present invention is not limited to three.

As shown in fig. 2, the fixture structure 1 includes a support frame 11, a positioning pin 12, a sensor bracket 13, a fixture auxiliary positioning block 14, a first protection cover 15, a connecting member 16, and a second protection cover 17. The connecting piece is in an inverted T shape, one end of the connecting piece is connected with the support frame, the other end of the connecting piece is connected with the positioning pin, and the connecting piece is inserted into the positioning hole of the steering wheel through the positioning pin for accurate positioning; one end of the connecting piece, which is connected with the positioning pin, horizontally extends along two sides of the connecting piece body, and the formed extending part is used for installing the auxiliary positioning block of the clamp, so that the clamp is stably placed on the steering wheel and does not shake, and the connecting piece integrally forms an inverted T-shaped structure after extending. In the embodiment, two support frames and two connecting pieces are arranged, the two support frames are respectively positioned at two ends of the clamp structure, and the two connecting pieces are respectively arranged below the two support frames; the auxiliary positioning blocks of the clamp are four and are arranged on the extending parts of the two connecting pieces. The sensor support is arranged in the middle of the lower portion of the support frame, and the laser sensor is installed on the sensor support and connected with the micro PC host for transmitting and receiving laser signals and acquiring measurement data. The first protective cover is arranged on the support frame 11, so that the electric assembly can be effectively protected from being damaged due to collision; in addition, the support frame 11 is also provided with strip-shaped grooves at two sides as handle positions of the device for taking and placing the operating personnel, so that the convenience of the operating personnel is improved. The second safety cover sets up in support frame below and is located the outside of connecting piece for anchor clamps tong when preventing personnel from operating.

Further, the utility model discloses an air bag check out test set is still including the structure of examining 2 that is used for check-up laser sensor. As shown in fig. 3, the fixture structure 2 includes a mounting plate 21, a supporting foot 22, and a fixture calibration block assembly 23. Positioning pin holes are formed in two sides of the mounting plate, the positions of the hole positions of the positioning pin holes are matched with the positions of the two positioning pins 12 on the clamp structure, and the positioning pins of the clamp structure are inserted into the positioning pin holes of the mounting plate to fix the position of the clamp structure when the clamp is used; the middle of the upper part of the mounting plate is provided with a groove, and the width of the groove is matched with the calibration block of the checking fixture. 4 supporting legs are arranged, are cylindrical and are respectively arranged on the periphery below the mounting plate; the gauge calibration block is placed on the groove of the mounting plate, and two side faces of the calibration block are in sliding fit with the side faces of the groove.

Further, referring to fig. 3, the gauge calibration block assembly comprises a single-step two-hole calibration block 231 and a three-step calibration block 232, wherein the single-step two-hole calibration block is used for laser positioning point calibration, and the three-step calibration block is used for calibration of the clamp laser sensor and detection of the height of the calibration block.

As shown in fig. 2 and 4, the electrical assembly 3 includes an energy storage battery pack 31, an IO module 32, an analog quantity acquisition module 33, a micro PC host 34, an OK lamp 35, an NG lamp 36, a mode selection switch 37, a first start button 38, a second start button 39, a reset button 40, a power button 41, and an electric quantity indicator 42, wherein the micro PC host is connected with the IO module, the IO module is respectively connected with three laser sensors, the first start button, the second start button, the reset button, the mode selection switch, the OK indicator lamp, and the NG indicator lamp, and the three laser sensors are further respectively connected to the micro PC host through the analog quantity acquisition module. The energy storage battery pack is arranged above the support frame 11 and used for providing a power supply for the device; the micro PC host is arranged on the left side of the battery pack and is connected with the battery pack as a controller of the device; the IO module and the analog quantity acquisition module are stacked and installed on the micro PC host according to the row and column mode; the OK lamp and the NG lamp are arranged in the middle position above the first protective cover, so that an operator can conveniently judge the detection state; the mode selection switch is arranged on the upper surface of the first protective cover 15 and used for selecting a use mode; the first starting button and the second starting button are respectively arranged on two sides of the supporting frame, so that the operation of an operator is facilitated; the reset button is positioned on the side surface of the micro PC host and is used for resetting the system; the power button is arranged beside the second starting button and used for controlling the switch of the equipment; a charge indicator is provided on the upper surface of the first shield 15 for indicating the remaining charge of the device.

The overall work flow of this embodiment is shown in fig. 5, wherein the specific detection operation steps include:

1. as shown in fig. 6, the positioning pin of the detection device is inserted into the positioning hole of the steering wheel, and is in a natural pressing state, and the projections of the light spots emitted by the three laser sensors to the reference point a, the first measurement point B, and the second measurement point C on the airbag are the position points of the airbag to be measured in this embodiment.

2. Simultaneously, the first starting button and the second starting button are pressed, the starting buttons send signals to the IO module, the IO module sends signals to the laser sensor, and the laser sensor emits laser to the steering wheel safety airbag.

3. The laser reflected by the safety airbag is received by a ccd linear camera in the laser sensor, and finally the numerical value is obtained through an analog quantity acquisition module and then transmitted to the micro PC host, and the micro PC host uploads the data to the SRS system through the built-in wireless module for comparison.

The operation steps of the laser emission height of the checking fixture are as follows: 1. and placing the clamp structure on a calibration seat, and attaching four corners. 2. The three-step blocks are put on level, so that the left laser point and the right laser point fall on the lowest step. 3. And filling the current actual height in the system. 4. And (4) horizontally pushing the three steps to enable the laser point to fall on the middle step, and repeating the step (3). 5. And (4) horizontally pushing the three steps to enable the laser point to fall on the highest step, and repeating the step (3). After the numerical values of the three step blocks are added, the storage key is pressed, and then verification can be carried out.

The operation steps of the laser emission position of the checking fixture are as follows: 1. and selecting a single step and two hole position calibration blocks and placing the calibration blocks on the gauge seat. 2. A verification mode is selected. 3. The test button is actuated. 4. And checking whether the laser point irradiates on the checking hole position after starting.

The check block height detection operation steps are as follows: 1. selecting a three-step check block, and pushing the check block to a gauge seat at any height; 2. selecting a verification mode; 3. starting a detection button; 4. and observing whether the measurement result meets the requirement.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all should be included in the protection scope of the present invention.

Claims

1. An airbag detection apparatus characterized by: the device comprises a clamp structure used for being connected with a steering wheel, an electrical assembly arranged on the clamp structure, a first laser sensor, a second laser sensor and a third laser sensor, wherein the first laser sensor, the second laser sensor and the third laser sensor are used for measuring distance data;

the laser sensor is arranged below the clamp structure and is connected with the electrical assembly; the first laser sensor emits a light spot of a reference point, the second laser sensor emits a light spot of a first measuring point, the third laser sensor emits a light spot of a second measuring point, and the three projections of the light spots on the safety air bag are detection position points of the safety air bag.

2. The airbag detection apparatus according to claim 1, characterized in that: the clamp structure comprises a support frame, a positioning pin, a sensor bracket, a first protective cover and a connecting piece;

3. The airbag detection apparatus according to claim 2, characterized in that: the clamp structure further comprises a clamp auxiliary positioning block; one end of the connecting piece, which is connected with the positioning pin, extends along two sides of the connecting piece body, the formed extending part is used for installing the auxiliary positioning block of the clamp, and the extending connecting piece is integrally of an inverted T-shaped structure.

4. The airbag detection apparatus according to claim 2, characterized in that: the clamp structure further comprises a second protection cover, and the second protection cover is arranged below the supporting frame and located on the outer side of the connecting piece.

5. The airbag detection apparatus according to claim 2, characterized in that: the safety airbag detection equipment further comprises a detection tool structure used for verifying the laser sensor.

6. The airbag detection apparatus according to claim 5, characterized in that: the gauge structure comprises a mounting plate and a gauge calibration block combination; positioning pin holes used for being matched with the positioning pins are formed in two sides of the mounting plate, a groove is formed in the middle above the mounting plate, and the width of the groove is matched with the calibration block of the checking fixture; the checking fixture calibration block is placed on the groove of the mounting plate, and two side faces of the checking fixture calibration block are in sliding fit with the side faces of the groove.

7. The airbag detection apparatus according to claim 5, characterized in that: the gauge calibration block combination comprises a single-step two-hole calibration block and a three-step calibration block, wherein the single-step two-hole calibration block is used for laser positioning point calibration, and the three-step calibration block is used for calibration of a laser sensor and detection of the height of the calibration block.

8. The airbag detection apparatus according to claim 1, characterized in that: the electric assembly comprises an IO module, an analog quantity acquisition module and a micro PC host, wherein the micro PC host is connected with the IO module; the IO module is respectively connected with the first laser sensor, the second laser sensor and the third laser sensor; the first laser sensor, the second laser sensor and the third laser sensor are also connected to the micro PC host through an analog quantity acquisition module respectively.