DAB horn pressing force detection mechanism

Abstract

The utility model discloses a DAB horn pressing force detection mechanism. The device comprises a workbench, the workbench is provided with a DAB fixing tool with a conduction detection module and a pressing force detection module, and the pressing force detection module is used for carrying out a pressing force test on a DAB assembly arranged on the DAB fixing tool. The DAB fixing tool comprises a bottom plate fixed to the table top of the workbench and a positioning plate installed on the bottom plate through stand columns. The positioning plate is provided with a plurality of spring seats capable of supporting the DAB assembly to move up and down and a plurality of positioning devices used for positioning the DAB assembly. The device has the advantages that movement of the pressure head is achieved through the three-axis servo driving device, pressure values and conduction conditions of all positions are obtained through cooperation of the pressure sensor and the conduction detection module, and compared with a traditional detection mechanism, the device is faster and more accurate in detection and more flexible in regulation and control; regulation and control and detection information display of all the modules are integrated in the control module, use is more convenient, and the detection result is more visual.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure detection device, specifically a DAB horn pressing force detection mechanism. BACKGROUND

[0002] DAB (Driver AirBag) refers to the airbag of the driver of the automobile, in order to ensure that the decorative cover horn can work normally, pressing force detection is often needed, however, the pressing force detection of the DAB horn is realized based on manual or using a force measuring machine, cannot accurately detect the pressing force of several specified coordinate points according to requirements, and cannot identify whether the product is on after pressing, which leads to the risk of failure of the final product. SUMMARY

[0003] The utility model solves the technical problem to provide a kind of detection fast accurate, easy-to-use DAB horn pressing force detection mechanism.

[0004] In order to solve the above technical problems, the DAB horn pressing force detection mechanism of the utility model, including workbench, the workbench is provided with the DAB fixed tooling with on-off detection module and pressing force detection module, the pressing force detection module is used to carry out pressing force test to the DAB component placed on the DAB fixed tooling.

[0005] The DAB fixed tooling includes the bottom plate fixed on the workbench top and the positioning plate installed on the bottom plate through the stand column;The positioning plate is provided with a plurality of spring seats capable of supporting the DAB component to move up and down and a plurality of positioning devices for positioning the DAB component.

[0006] The positioning device includes a fixed plate provided on the positioning plate, a movable beam connected to the fixed plate through a spring and a gas cylinder located at the distal end of the positioning plate;The telescopic rod of the gas cylinder is directed to the movable beam and is connected with a push block for pushing the movable beam;A positioning shell for placing the conductive part of the DAB component is arranged between the movable beam and the push block;The positioning shell is provided with a guide groove for clamping the movable beam.

[0007] The on-off detection module is arranged on the positioning plate and includes a plurality of conductive supports, the conductive supports are located directly below the conductive contact of the DAB component, and a conductive copper column is arranged in the conductive support.

[0008] The pressing force detection module includes a support frame fixed on the workbench top, a three-axis servo driving device arranged on the support frame and a pressure head with a pressure sensor mounted on the three-axis servo driving device.

[0009] The workbench is provided with a control module for controlling the pressing force detection module and collecting feedback information of the pressure sensor.

[0010] The bottom of the workbench is provided with casters.

[0011] The utility model discloses the advantages are: adopt three -axis servo drive device and realize the movement of pressure head, and through the cooperation of pressure sensor and conduction detection module, the pressure value and the conduction situation of each place are obtained, and compared with traditional detection mechanism, its detection is more quick and accurate, and the regulation and control are more flexible, the regulation and control and detection information display of each module are integrated in control module, are more convenient to use, and the detection result is more intuitive. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the perspective drawing of the utility model;

[0013] Figure 2 It is the perspective drawing of the utility model after removing the upper frame of workbench;

[0014] Figure 3 It is the perspective drawing of the utility model after removing workbench and positioning shell;

[0015] Figure 4 It is Figure 3 The partial enlarged view of the utility model;

[0016] Figure 5 It is the section view of positioning shell. DETAILED DESCRIPTION

[0017] The DAB loudspeaker pressing force detection mechanism of the utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0018] As shown in the figure, the DAB loudspeaker pressing force detection mechanism of the utility model includes workbench 1, and the workbench 1 is provided with DAB fixed tooling 3 with conduction detection module 2 and pressing force detection module 4.

[0019] The DAB fixing tool 3 is used for placing and fixing the DAB assembly to be detected, and includes a bottom plate 5 fixed on the tabletop of the workbench 1 and a positioning plate 7 installed on the bottom plate 5 through a stand 6. The positioning plate 7 is provided with three spring seats 8 capable of supporting the DAB assembly to move up and down and three sets of positioning devices 9 used for positioning the DAB assembly. Each set of positioning devices 9 includes a fixed plate 17 arranged on the positioning plate 7, a movable beam 18 connected to the fixed plate 17 through a spring, and a pneumatic cylinder 19 located at the distal end of the positioning plate 7. The pneumatic cylinder 19 has an extending rod directed towards the movable beam 18 and connected with a push block 20. The push block 20 is in abutment with the movable beam 18 and can move the movable beam 18 back and forth under the action of the pneumatic cylinder 19. A positioning shell 21 used for placing the conductive part of the DAB assembly is arranged between the movable beam 18 and the push block 20. The positioning shell 21 is provided with a guide groove 22 for the movement of the movable beam 18, so that the movable beam 18 can be clamped into the guide groove 22 to limit the DAB assembly in the horizontal direction after the DAB assembly is placed. The conduction detection module 2 is arranged directly below the conductive contact of the DAB assembly and is used for detecting the conduction of the DAB assembly. The conduction detection module 2 includes a plurality of conductive supports 10 arranged on the positioning plate 7 and conductive copper columns 11 arranged in the conductive supports 10.

[0020] The pressing force detection module 4 is used for testing the pressing force of the DAB assembly, and includes a support frame 12 fixed on the tabletop of the workbench 1, a three-axis servo driving device 13 arranged on the support frame 12, and a pressure head 14 with a pressure sensor installed on the three-axis servo driving device 13.

[0021] The control module 15 for controlling the pressing force detection module 4 and collecting the feedback information of the pressure sensor is arranged on the upper frame of the workbench 1, and the bottom is provided with casters 16 for facilitating the overall movement of the equipment.

[0022] In use, the three conductive contacts below the DAB assembly are aligned and placed into the shell of the positioning device 9. When pressed, the movable beam is first pushed away and then clamped into the shell guide groove to limit the DAB assembly. At this time, the lower part of the DAB assembly is supported by the three spring seats 8. Then, after setting the detection point coordinates, the upper and lower limits of the pressing force, the number of pressing times and other parameters through the control module 15, the equipment is started, and the three-axis servo driving device 13 moves with the pressure head 14 to press each position. When pressed, the DAB assembly moves along the vertical direction with the spring seat 8. When the conductive contacts at the bottom contact the conductive copper columns 11, the horn is connected to emit a sound. At this time, the pressure sensor on the pressure head 14 feeds back the pressure value to the control module 15. After the detection at each place is completed, the results will be displayed on the control module 15. When setting the parameters, multiple tests can also be set when an abnormality is detected at a certain point. If the abnormality still exists, an alarm will be issued and the work will be stopped, waiting for manual control reset.

[0023] Of course, the above description is not a limitation of the utility model, the utility model is not limited to the above examples, the changes, modifications, additions or replacements made by the person skilled in the art within the essential scope of the application should also belong to the protection scope of the utility model.

Claims

1. A DAB horn pressing pressure detection mechanism, characterized in that: The device includes a workbench (1), on which a DAB fixture (3) with a continuity detection module (2) and a pressure detection module (4) are provided. The pressure detection module (4) is used to perform pressure testing on the DAB components placed on the DAB fixture (3).

2. The DAB horn pressure detection mechanism according to claim 1, characterized in that: The DAB fixing fixture (3) includes a base plate (5) fixed to the workbench (1) and a positioning plate (7) mounted on the base plate (5) by a column (6); the positioning plate (7) is provided with a plurality of spring seats (8) that can support the up and down movement of the DAB assembly and a plurality of positioning devices (9) for positioning the DAB assembly.

3. The DAB horn pressure detection mechanism according to claim 2, characterized in that: The positioning device (9) includes a fixed plate (17) disposed on the positioning plate (7), a movable beam (18) connected to the fixed plate (17) by a spring, and a cylinder (19) located at the far end of the positioning plate (7); the telescopic rod of the cylinder (19) faces the movable beam (18) and is connected to a push block (20) for pushing the movable beam (18); a positioning housing (21) for placing the conductive part of the DAB component is disposed between the movable beam (18) and the push block (20); a guide groove (22) is opened on the positioning housing (21) for the movable beam (18) to be inserted.

4. The DAB horn pressure detection mechanism according to claim 2, characterized in that: The continuity detection module (2) is mounted on the positioning plate (7) and includes multiple conductive supports (10). The conductive supports (10) are located directly below the conductive contacts of the DAB component and contain conductive copper pillars (11).

5. The DAB horn pressure detection mechanism according to any one of claims 1-4, characterized in that: The pressure detection module (4) includes a support frame (12) fixed on the workbench (1), a three-axis servo drive device (13) set on the support frame (12), and a pressure head (14) with a pressure sensor installed on the three-axis servo drive device (13).

6. The DAB horn pressure detection mechanism according to claim 1, characterized in that: The workbench (1) is equipped with a control module (15) for controlling the pressure detection module (4) and collecting feedback information from the pressure sensor.

7. The DAB horn pressure detection mechanism according to claim 1, characterized in that: The workbench (1) is equipped with casters (16) at the bottom.

Images