Pressing device for improving measurement accuracy and consistency of loudspeaker
By combining the drive mechanism and the control system, automatic control of the speaker's clamping force is achieved, which solves the problem of inconsistent clamping force in traditional devices, improves measurement accuracy and consistency, and enhances test efficiency.
Patent Information
- Application Number
- CN202422651413.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional speaker clamping devices lack automation functions, resulting in inconsistent clamping force, affecting the accuracy and efficiency of measurement results.
The drive mechanism and control system are combined with pressure sensors, display screens and programmable motors to achieve precise control and real-time monitoring of the clamping force, ensuring the consistency of the clamping force.
This improves the accuracy and consistency of speaker measurements, increases test efficiency, and ensures the stability and accuracy of the clamping force during automated testing.
Smart Images
Figure CN223428571U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of loudspeakers, and in particular relates to a pressing device for improving the measurement accuracy and consistency of loudspeakers. Background Art
[0002] A speaker clamping device is a device used to ensure close contact between the speaker unit (such as the voice coil, diaphragm, etc.) and the fixed structure (such as the magnetic circuit system) during the speaker manufacturing and testing process. This device is commonly used in the assembly, testing, and calibration of speakers to ensure that the speakers can operate normally under various operating conditions. Experimental results show that different clamping forces can lead to significant differences in test results even for the same speaker. For different speakers of the same model, the clamping force of traditional devices varies greatly due to the influence of external dimensions and installation accuracy, resulting in significant test errors.
[0003] The speaker unit test requires a good fit with the test baffle. Traditional clamping devices are mostly fixtures or spring pins, which usually rely on manual adjustment of the clamping force and reset, and lack the function of real-time pressure display. The lack of automation function may make the test process cumbersome and inefficient, and it is difficult to ensure the consistency of the clamping force, thus affecting the accuracy of the measurement results. Utility Model Content
[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a pressing device for improving the accuracy and consistency of loudspeaker measurement.
[0005] The utility model adopts the following technical solution: a pressing device for improving the accuracy and consistency of loudspeaker measurement, comprising: a base bracket, a driving mechanism disposed on the base bracket, and a control system connected to the driving mechanism;
[0006] The driving mechanism at least comprises: a guide rod provided on the base support, and a screw rod main body transmission-connected to the guide rod;
[0007] The control system at least includes: a pressure sensor connected to the output end of the screw body, a pressure display screen connected to the pressure sensor, and a programmable motor connected to the pressure display screen.
[0008] Preferably, the driving mechanism further comprises: a limiting rod provided on the base bracket, and a telescopic rod connected to the limiting rod and the output end of the screw rod body.
[0009] Preferably, the telescopic rod and the guide rod are arranged on the same straight line, and the screw rod body is vertically arranged on the guide rod.
[0010] Preferably, the pressure display screen is arranged on the top of the screw body.
[0011] Preferably, a motor base is provided on the upper portion of the screw rod body, and the programmable motor is provided on the motor base.
[0012] The beneficial effects of the present invention are as follows: a clamping device for improving the accuracy and consistency of loudspeaker measurement, which realizes automation of the clamping device by setting a driving mechanism and a control system, and a pressure sensor is installed at the output end of the screw body, and combined with a pressure display screen and a programmable motor, it realizes precise control and real-time monitoring of the loudspeaker clamping force, ensures the consistency of the clamping force, and improves the accuracy and consistency of loudspeaker measurement. The limit rod and the telescopic rod ensure a certain range of motion for the screw body, avoiding excessive displacement of the screw body during the clamping process; the telescopic rod and the guide rod are arranged on the same straight line, and the screw body is arranged vertically on the guide rod, ensuring the linearity and stability of the clamping process, and avoiding displacement or tilt of the screw body during the clamping process.
[0013] The working principle of the present utility model is as follows: the loudspeaker is placed on the base bracket, ensuring that the loudspeaker is aligned with the output end of the screw body, and the pressing force of the loudspeaker is preset through control system programming. Start the programmable motor to drive the screw body to move downward, and the pressure sensor detects the pressure of the contact point with the loudspeaker in real time and transmits the data to the control system. When the pressure reaches the preset value, the control system automatically stops the operation of the programmable motor. The pressure display screen displays the pressure in real time, making it convenient for the operator to confirm the consistency of the pressing force. The operator can visually confirm whether the pressing force reaches the preset value through the pressure display screen. After the loudspeaker measurement is completed, the control system automatically resets the programmable motor to the initial position, and the telescopic rod limits the range of motion of the screw body through the limit rod to ensure the stability of the reset process. The pressing and resetting procedures are integrated with the loudspeaker test procedure to realize the automated testing of the loudspeaker unit, improve the test accuracy and consistency, and provide test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the present utility model.
[0015] Figure 2 It is a top view of the utility model.
[0016] In the accompanying drawings, the components represented by each reference numeral are listed as follows: limit rod 1, base bracket 2, pressure display screen 3, programmable motor 4, telescopic rod 5, motor base 6, guide rod 7, screw rod body 8, pressure sensor 9. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the embodiments.
[0018] A clamping device for improving the accuracy and consistency of loudspeaker measurements, such as Figure 1 and Figure 2 As shown in the figure, it comprises: a base support 2, a driving mechanism arranged on the base support 2, and a control system connected to the driving mechanism; the driving mechanism at least comprises: a guide rod 7 arranged on the base support 2, providing vertical guiding effect, and a screw rod body 8 connected to the guide rod 7, driven by a program-controlled motor 4, realizing vertical movement; the control system at least comprises: a pressure sensor 9 connected to the output end of the screw rod body 8, for real-time detection of the pressure at the contact point of the loudspeaker; a pressure display screen 3 connected to the pressure sensor 9, arranged on the top of the screw rod body 8, for real-time display of the pressure, facilitating the operator to confirm the consistency of the pressing force; and a program-controlled motor 4 connected to the pressure display screen 3, realizing accurate control of the screw rod body 8 through programming of the control system.
[0019] In further embodiments, the driving mechanism further comprises: a limiting rod 1 arranged on the base support 2, and a telescopic rod 5 connected to the limiting rod 1 and the output end of the screw rod body 8. The movement range of the screw rod body 8 is limited, avoiding excessive displacement of the screw rod body 8 during the pressing process, and further improving the accuracy and consistency of the pressing force.
[0020] In further embodiments, the telescopic rod 5 and the guide rod 7 are arranged on the same straight line, and the screw rod body 8 is vertically arranged on the guide rod 7, ensuring the linearity and stability of the pressing process. Avoiding the displacement or inclination of the screw rod body 8 during the pressing process.
[0021] In further embodiments, the upper part of the screw rod body 8 is provided with a motor base 6, and the program-controlled motor 4 is arranged on the motor base 6, ensuring the stability and reliability of the program-controlled motor 4, and the accurate control of the program-controlled motor 4 helps to realize the accurate driving of the screw rod body 8.
[0022] The operating principle of the present utility model is as follows: the entire device is fixed to a baffle frame or the wall of a semi-anechoic chamber. During testing, the screw rod 8 is first pushed to one end of the limit rod 1 to facilitate speaker installation. The speaker is placed on the base bracket 2. Once the speaker is in place, the screw rod 8 is pushed to the limit rod 1 directly behind the speaker, ensuring that the speaker and the output end of the screw rod 8 are aligned. The control system is programmed to preset the speaker's pressing force. The programmable motor 4 is activated, driving the screw rod 8 downward. The pressure sensor 9 measures the pressure at the contact point with the speaker in real time and transmits the data to the control system. When the pressure reaches the preset value, the control system automatically stops the programmable motor 4. The pressure display 3 displays the head pressure in real time, allowing the operator to confirm the consistency of the pressing force. The operator can visually confirm whether the pressing force has reached the preset value through the pressure display 3. If the displayed pressure is inconsistent with the preset pressure, the pressing process is stopped and checked. After the speaker measurement is completed, the control system automatically resets the programmable motor 4 to its initial position. The telescopic rod 5, via the limit rod 1, limits the range of motion of the screw rod 8, ensuring the stability of the reset process. Integrate the pressing and resetting procedures with the speaker test procedure to realize automated testing of the speaker unit, improve test accuracy and consistency, and improve test efficiency.
[0023] A clamping device for improving the accuracy and consistency of loudspeaker measurement is provided. It is worth noting that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical details described in the aforementioned embodiments or make equivalent replacements for some of the technical features. Any equivalent replacements, modifications, etc. made within the core ideas and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A clamping device for improving the accuracy and consistency of loudspeaker measurement, characterized in that: include: A base support, a driving mechanism disposed on the base support, and a control system connected to the driving mechanism; The driving mechanism at least comprises: a guide rod provided on the base support, and a screw rod main body transmission-connected to the guide rod; The control system at least includes: a pressure sensor connected to the output end of the screw body, a pressure display screen connected to the pressure sensor, and a programmable motor connected to the pressure display screen.
2. A pressing device for improving the accuracy and consistency of loudspeaker measurement according to claim 1, characterized in that: The driving mechanism further includes: a limiting rod arranged on the base bracket, and a telescopic rod connected to the limiting rod and the output end of the screw rod body.
3. The pressing device for improving the accuracy and consistency of loudspeaker measurement according to claim 2, characterized in that: The telescopic rod and the guide rod are arranged on the same straight line, and the screw rod body is vertically arranged on the guide rod.
4. The pressing device for improving the measurement accuracy and consistency of a loudspeaker according to claim 1, characterized in that: The pressure display screen is arranged on the top of the screw rod body.
5. The pressing device for improving the accuracy and consistency of loudspeaker measurement according to claim 1, characterized in that: A motor base is provided on the upper portion of the screw rod body, and the program-controlled motor is provided on the motor base.