Loudspeaker sound tester

Abstract

The utility model discloses a loudspeaker sound measuring machine, which belongs to the technical field of electronic component detection equipment and comprises a feeding belt conveying assembly, an upper camera shooting and positioning assembly, a feeding XYZ-axis module assembly, a double-station sound measuring jig, a discharging XYZ-axis module assembly and a discharging OK / NG belt conveying assembly. An upper camera shooting positioning assembly is arranged on the inner side of the feeding belt conveying assembly, a base of the upper camera shooting positioning assembly is fixedly arranged on the double-station sound measuring jig, and the discharging XYZ-axis module assembly and the feeding XYZ-axis module assembly are arranged on the left side and the right side of the double-station sound measuring jig correspondingly. The discharging OK / NG belt conveying assembly is symmetrically arranged relative to the double-station sound measuring jig and the feeding belt conveying assembly. According to the loudspeaker sound measuring machine, high automation of the sound measuring process is achieved, the working efficiency is remarkably improved, the occupied area is reduced, and the requirements for various jigs are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electronic component testing equipment technology, and in particular to a speaker sound tester. Background Technology

[0002] A sound testing machine is used to test the sound quality of loudspeakers. Only loudspeaker products that pass the sound quality test meet production requirements. Currently, most of the industry uses manual sound testing, which has the following problems: Low automation: It relies on a large number of manual operations, increasing labor costs and management systems; Large footprint: Traditional manual testing requires a large space to set up workstations and store fixtures; Many fixtures required: Different models of loudspeakers usually require different fixtures for fixing, resulting in poor production flexibility; Low efficiency: Manual testing is slow and easily affected by human factors, making it difficult to meet the high-efficiency requirements of large-scale production. Utility Model Content

[0003] The purpose of this invention is to provide a loudspeaker sound testing machine that achieves a high degree of automation in the sound testing process, significantly improves work efficiency, and reduces the floor space required and the need for various fixtures.

[0004] To achieve the above objectives, this utility model provides a speaker sound testing machine, including a feeding belt conveyor assembly, an upper camera imaging and positioning assembly, a feeding XYZ axis module assembly, a dual-station sound testing fixture, an unloading XYZ axis module assembly, and an unloading OK / NG belt conveyor assembly. The upper camera imaging and positioning assembly is provided inside the feeding belt conveyor assembly. The base of the upper camera imaging and positioning assembly is fixedly mounted on the dual-station sound testing fixture. The unloading XYZ axis module assembly and the feeding XYZ axis module assembly are respectively located on the left and right sides of the dual-station sound testing fixture. The unloading OK / NG belt conveyor assembly is symmetrically arranged with respect to the dual-station sound testing fixture and the feeding belt conveyor assembly.

[0005] Preferably, the feeding belt conveyor assembly includes a belt conveyor line, with a drive shaft and a driven shaft respectively at both ends of the belt conveyor line. A stepper motor is provided on the outside of the drive shaft, and the output shaft of the stepper motor is connected to the drive shaft. A width adjustment plate is provided on the outside of the belt conveyor line.

[0006] Preferably, the upper camera positioning component includes an L-shaped bracket, with an upper camera fixedly mounted at the end of the L-shaped bracket. The upper camera includes a high-resolution camera and an image processing unit.

[0007] Preferably, the feeding XYZ axis module assembly includes an X-axis moving module, a Y-axis moving module, and a Z-axis moving module, with a Y-axis moving module at the top of the X-axis moving module and a Z-axis moving module at the end of the Y-axis moving module.

[0008] Preferably, the moving directions of the three moving modules, namely the X-axis moving module, the Y-axis moving module, and the Z-axis moving module, are perpendicular to each other. The bottom end of the Z-axis moving module is provided with a material picking gripper. The X-axis moving module and the Y-axis moving module both include a drive chain and a drive guide rail. The Z-axis moving module includes a lifting cylinder.

[0009] Preferably, the unloading XYZ axis module assembly has the same structure as the loading XYZ axis module assembly, and also includes three mutually perpendicular motion axes.

[0010] Preferably, the dual-station sound measuring fixture includes two independent worktables, each equipped with a sound measuring sensor and a control system.

[0011] Preferably, the unloading OK / NG belt conveyor assembly includes an OK belt conveyor and an NG belt conveyor, and the inner side of the OK belt conveyor is provided with a width adjustment plate.

[0012] This utility model also provides a central control system, which is connected to the feeding belt conveyor assembly, the upper camera imaging and positioning assembly, the feeding XYZ axis module assembly, the dual-station sound measuring fixture, the unloading XYZ axis module assembly, and the unloading OK / NG belt conveyor assembly. The central control system includes a human-machine interface.

[0013] Therefore, the present invention employs the above-mentioned speaker sound tester, and the beneficial effects are as follows:

[0014] High degree of automation: The entire process from loading to unloading is automated, reducing manual intervention and labor intensity.

[0015] Space saving: The compact design effectively reduces the space occupied by the equipment and adapts to the layout of modern production workshops.

[0016] Reduced number of fixtures: The dual-station sound meter fixture design allows a single fixture to be compatible with a wider variety of speakers, simplifying the production process.

[0017] Improved efficiency: Compared with traditional manual sound measurement methods, this invention can significantly improve testing speed and increase output per unit time.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is a top view of an embodiment of a loudspeaker sound meter according to this utility model;

[0020] Figure 2 This is a schematic diagram of the feeding belt conveyor assembly of an embodiment of a loudspeaker sound meter according to this utility model;

[0021] Figure 3 This is a schematic diagram of the upper camera imaging and positioning component structure of an embodiment of a speaker sound meter according to this utility model;

[0022] Figure 4 This is a schematic diagram of the feeding XYZ axis module assembly of an embodiment of a speaker sound meter according to this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of a dual-station sound measuring fixture according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the XYZ axis module assembly for unloading materials according to an embodiment of the present invention;

[0025] Figure 7 This utility model relates to a horn sound testing machine embodiment of a material unloading OK / NG belt conveyor device.

[0026] Figure Labels

[0027] 1. Feeding belt conveyor assembly; 2. Camera positioning assembly; 3. Feeding XYZ axis module assembly; 4. Dual-station sound measuring fixture; 5. Unloading XYZ axis module assembly; 6. Unloading OK / NG belt conveyor assembly; 7. Stepper motor; 8. Width adjustment plate; 9. Belt conveyor line; 10. L-shaped fixing frame; 11. Camera; 12. X-axis moving module; 13. Y-axis moving module; 14. Z-axis moving module; 15. Picking gripper; 16. Worktable; 17. Sound sensor; 18. OK belt conveyor; 19. NG belt conveyor. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0029] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Example 1

[0031] like Figure 1 As shown, this utility model provides a speaker sound testing machine, including a feeding belt conveyor assembly 1, an upper camera imaging and positioning assembly 2, a feeding XYZ axis module assembly 3, a dual-station sound testing fixture 4, an unloading XYZ axis module assembly 5, and an unloading OK / NG belt conveyor assembly 6.

[0032] The inner side of the feeding belt conveyor assembly 1 is provided with an upper camera photography and positioning assembly 2. The base of the upper camera photography and positioning assembly 2 is fixedly set on the dual-station sound measuring fixture 4. The unloading XYZ axis module assembly 5 and the feeding XYZ axis module assembly 3 are respectively set on the left and right sides of the dual-station sound measuring fixture 4. The unloading OK / NG belt conveyor assembly 6 is symmetrically arranged about the dual-station sound measuring fixture 4 and the feeding belt conveyor assembly 1.

[0033] Feeding belt conveyor assembly 1, such as Figure 2 As shown, it is used to transport the speaker under test to the upper camera for image positioning component 2.

[0034] The feeding belt conveyor assembly 1 includes a belt conveyor line 9, with a drive shaft and a driven shaft at each end. A stepper motor 7 is mounted on the outside of the drive shaft, and its output shaft is connected to the drive shaft. Under the action of the stepper motor 7, the belt conveyor line 9 can rotate around the drive shaft and the driven shaft. The belt conveyor line 9 also has multiple stations, enabling it to continuously and stably transport the speaker to be tested to a designated position. A width adjustment plate 8 is mounted on the outside of the belt conveyor line 9, allowing for appropriate adjustment according to the size of the speaker to be tested.

[0035] like Figure 3 As shown, the upper camera photography and positioning component 2 includes an L-shaped fixing frame 10, and an upper camera 11 is fixedly mounted at the end of the L-shaped fixing frame 10. The upper camera 11 includes a high-resolution camera and an image processing unit. It uses the high-precision camera to take real-time pictures of the speaker and accurately position it. It can accurately identify and position speakers of different shapes and sizes to ensure that subsequent handling is accurate.

[0036] Loading XYZ axis module assembly 3, such as Figure 4 As shown, based on the speaker position information provided by the upper camera 11, the speaker is precisely moved to the dual-station sound measuring fixture 4.

[0037] The feeding XYZ axis module assembly 3 includes an X-axis moving module 12, a Y-axis moving module 13, and a Z-axis moving module 14. The top of the X-axis moving module 12 is equipped with the Y-axis moving module 13, and the end of the Y-axis moving module 13 is equipped with the Z-axis moving module 14. Both the X-axis moving module 12 and the Y-axis moving module 13 include a drive chain and a drive guide rail. The horizontal movement of the moving module can be realized through the drive chain and the drive guide rail. The Z-axis moving module 14 includes a lifting cylinder, which realizes the vertical movement of the Z-axis moving module 14.

[0038] The X-axis moving module 12, Y-axis moving module 13, and Z-axis moving module 14 move in mutually perpendicular directions. The bottom of the Z-axis moving module 14 is equipped with a material-grabbing gripper 15, and a telescopic cylinder is provided between the material-grabbing grippers 15. The telescopic cylinder is used to grasp and place the speaker. Therefore, by feeding the XYZ axis module assembly 3, the speaker can be accurately positioned in three-dimensional space and transported to the dual-station sound measuring fixture 4.

[0039] like Figure 5 As shown, the dual-station sound testing fixture 4 includes two independent worktables 16, each equipped with a sound sensor 17 and a control system. The sound sensor 17 performs sound testing on the speaker and outputs OK / NG results, which are then transmitted to the control system. The dual-station sound testing fixture 4 can test two speakers simultaneously, greatly improving testing efficiency.

[0040] like Figure 6 As shown, the unloading XYZ axis module assembly 5 has the same structure as the loading XYZ axis module assembly 3, and also includes three mutually perpendicular motion axes. Based on the sound measurement results, the unloading XYZ axis module assembly 5 transports OK or NG products to the OK conveyor belt 18 and the NG conveyor belt 19, respectively.

[0041] like Figure 7 As shown, the OK / NG belt conveyor assembly 6 includes an OK belt conveyor 18 and an NG belt conveyor 19. The OK belt conveyor 18 has a width adjustment plate 8 on its inner side. The OK belt conveyor 18 and NG belt conveyor 19 transport the sound-tested horns to the qualified and unqualified product collection areas, respectively.

[0042] This utility model also provides a central control system, which is connected to the feeding belt conveyor assembly 1, the upper camera photography and positioning assembly 2, the feeding XYZ axis module assembly 3, the dual-station sound measuring fixture 4, the unloading XYZ axis module assembly 5, and the unloading OK / NG belt conveyor assembly 6, thereby realizing the automated control and data management of the entire sound measuring machine.

[0043] The central control system includes a human-machine interface that can display the sound measurement status in real time, perform statistical analysis of data, and provide fault alarm functions.

[0044] Therefore, this utility model adopts the above-mentioned loudspeaker sound measuring machine, which realizes a high degree of automation in the sound measuring process, significantly improves work efficiency, and reduces the floor space and the need for various fixtures.

[0045] It is worth noting that all the contents not described in detail in this utility model are existing technologies and are well known to those skilled in the art.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A loudspeaker sound tester, characterized in that: The device includes a feeding belt conveyor assembly, a camera imaging and positioning assembly, a feeding XYZ axis module assembly, a dual-station acoustic measuring fixture, a discharging XYZ axis module assembly, and a discharging OK / NG belt conveyor assembly. The feeding belt conveyor assembly has a camera imaging and positioning assembly inside it. The base of the camera imaging and positioning assembly is fixedly mounted on the dual-station acoustic measuring fixture. The discharging XYZ axis module assembly and the feeding XYZ axis module assembly are respectively located on the left and right sides of the dual-station acoustic measuring fixture. The discharging OK / NG belt conveyor assembly is symmetrically arranged with respect to the dual-station acoustic measuring fixture and the feeding belt conveyor assembly.

2. The horn sound tester according to claim 1, characterized in that: The feeding belt conveyor assembly includes a belt conveyor line, with a drive shaft and a driven shaft at each end of the belt conveyor line. A stepper motor is provided on the outside of the drive shaft, and the output shaft of the stepper motor is connected to the drive shaft. A width adjustment plate is provided on the outside of the belt conveyor line.

3. A speaker sound tester according to claim 1, characterized in that: The upper camera positioning component includes an L-shaped bracket, with an upper camera fixedly mounted at the end of the L-shaped bracket. The upper camera includes a high-resolution camera and an image processing unit.

4. A speaker sound tester according to claim 1, characterized in that: The feeding XYZ axis module assembly includes an X-axis moving module, a Y-axis moving module, and a Z-axis moving module. The top of the X-axis moving module is provided with a Y-axis moving module, and the end of the Y-axis moving module is provided with a Z-axis moving module.

5. A speaker sound tester according to claim 4, characterized in that: The X-axis moving module, Y-axis moving module, and Z-axis moving module move in mutually perpendicular directions. The bottom of the Z-axis moving module is provided with a material-picking gripper. The X-axis moving module and Y-axis moving module both include a drive chain and a drive guide rail. The Z-axis moving module includes a lifting cylinder.

6. A speaker sound tester according to claim 1, characterized in that: The unloading XYZ axis module assembly has the same structure as the loading XYZ axis module assembly, and also includes three mutually perpendicular motion axes.

7. A speaker sound tester according to claim 1, characterized in that: The dual-station sound measuring fixture includes two independent worktables, each equipped with a sound measuring sensor.

8. A speaker sound tester according to claim 1, characterized in that: The feeding OK / NG belt conveyor assembly includes an OK belt conveyor and an NG belt conveyor, and the OK belt conveyor has a width adjustment plate on its inner side.

9. A speaker sound tester according to claim 1, characterized in that: It also includes a central control system, which is connected to the feeding belt conveyor assembly, the upper camera imaging and positioning assembly, the feeding XYZ axis module assembly, the dual-station sound measuring fixture, the unloading XYZ axis module assembly, and the unloading OK / NG belt conveyor assembly. The central control system includes a human-machine interface.

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