A kind of auxiliary measurement equipment of component sound insulation and control method thereof

Abstract

The present invention provides an auxiliary measurement device for the sound insulation of a component and a control method thereof, the auxiliary measurement device comprising a controller module, a sound insulation wall, a sound insulation window, a silent slider module and a sound intensity probe; the sound insulation window is arranged on the sound insulation wall, and its front side is used to fix the component to be measured; the sound intensity probe is fixed on the silent slider module, and its output end is electrically connected to the input end of the controller module; the output end of the controller module is electrically connected to the driving end of the silent slider module, and is used to drive the silent slider module to slide on the back side of the sound insulation window according to a preset measurement route, so that the sound intensity probe collects the sound insulation of the component to be measured on the preset measurement route. The entire measurement process of the auxiliary measurement device provided by the present invention does not require manual operation, ensures the consistency of the trajectory and speed of the sound intensity probe during operation, can realize intelligent measurement of the sound insulation of the component, and effectively improves the measurement efficiency and the accuracy of the measurement data.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile equipment testing, and in particular to an auxiliary measurement device for sound insulation of components and a control method thereof. Background Art

[0002] In the early stage of automobile design and development, it is necessary to use soundproof windows to test the sound insulation of automobile parts in a quiet environment, so as to collect sound insulation data of parts to help debug the NVH performance of the whole vehicle. Sound insulation refers to the ability of materials or components to isolate or block the propagation of sound to obtain a quiet environment, which is specifically manifested in the strength of the sound insulation ability of the material. When sound is incident on the surface of the material, the transmitted sound energy that passes through the material to the other side is very small, indicating that the material has strong sound insulation ability. The decibel difference between the incident sound energy and the transmitted sound energy on the other side is the sound insulation of the material.

[0003] At present, sound insulation windows are used to test the sound insulation of automobile parts, and handheld sound intensity probes are generally used to collect sound insulation. The experimenter scans back and forth at a constant speed along the specified route and collects the sound intensity value to achieve the sound insulation test. However, this method uses a handheld sound intensity probe to perform manual testing, which cannot ensure the consistency of the probe's trajectory and speed during operation. Therefore, the measurement data is often biased, and it requires a lot of manpower and material resources, resulting in low measurement efficiency. Summary of the invention

[0004] The present invention aims to provide a component sound insulation auxiliary measurement device and a control method thereof to solve the above-mentioned technical problems, realize intelligent measurement of component sound insulation, improve measurement efficiency, and enhance the accuracy of measurement data.

[0005] In order to solve the above technical problems, the present invention provides a component sound insulation auxiliary measurement device, including a controller module, a sound insulation wall, a sound insulation window, a silent slider module and a sound intensity probe; wherein:

[0006] The sound insulation window is arranged on the sound insulation wall, and the front side thereof is used for fixing the tested components;

[0007] The sound intensity probe is fixed on the silent slider module, and its output end is electrically connected to the input end of the controller module;

[0008] The output end of the controller module is electrically connected to the driving end of the silent slider module, and is used to drive the silent slider module to slide on the back of the sound insulation window according to a preset measurement route, so that the sound intensity probe collects the sound insulation value of the measured component on the preset measurement route.

[0009] The above scheme only needs to fix the measured parts on the front of the sound insulation window, set the preset measurement route through the controller module and drive the silent slider module to slide on the back of the sound insulation window according to the preset measurement route, so as to control the sound intensity probe to collect the sound insulation of the measured parts on the preset measurement route. The entire measurement process does not require manual operation, ensuring the consistency of the trajectory and speed of the sound intensity probe during operation, and can realize intelligent measurement of the sound insulation of parts, effectively improving the measurement efficiency and the accuracy of the measurement data.

[0010] It should be noted that the sound insulation wall is used to divide the entire measurement environment into the sound source area and the measurement area, providing appropriate environmental conditions for measuring the sound insulation of the measured parts. The opening of the sound insulation window is used to determine the location of the measured parts to facilitate the generation of the preset measurement route. The size of the sound insulation window can generally be larger than the size of the measured parts to ensure that the entire measured parts are in the sound insulation window area and ensure the consistency of the measurement data.

[0011] Furthermore, the controller module includes a control panel and a control circuit; wherein: the output end of the control panel is electrically connected to the input end of the control circuit; the control panel is used to input control parameters to obtain a preset measurement route, and transmit the preset measurement route to the control circuit; the input end of the control circuit is electrically connected to the output end of the sound intensity probe; the output end of the control circuit is electrically connected to the driving end of the silent slider module, and is used to drive the silent slider module to slide on the back of the sound insulation window according to the preset measurement route, so that the sound intensity probe collects the sound insulation of the measured component on the preset measurement route.

[0012] In the above scheme, the control panel can provide the experimenter with a platform for setting parameters. After the measured component is fixed on the front of the soundproof window, the control parameters such as the origin coordinates, component width, component height and measurement line spacing can be input into the control circuit through the control panel, so as to obtain the preset measurement route, facilitate the subsequent control circuit to drive the silent slider module, realize the measurement of the sound insulation volume of the determined position of the measured component, and improve the targeted measurement.

[0013] In the above scheme, the control circuit can be implemented by a PLC controller circuit, which generates corresponding control instructions in sequence through a preset measurement route to drive the silent slider module to slide on the back of the sound insulation window according to the preset measurement route, so that the sound intensity probe collects the sound insulation of the measured parts on the preset measurement route. The entire control process is automated, without the need for human participation, eliminating interference from human factors, and thus effectively improving the accuracy of the measurement data.

[0014] It should be noted that the sound insulation measured by the sound intensity probe can be transmitted from the output end of the sound intensity probe to the input end of the control circuit, and the control circuit performs related operations such as data storage, analysis and processing, sound intensity probe coordinate display or data display.

[0015] Furthermore, the silent slider module includes an X-axis silent module, a Y-axis silent module, an X-axis slider and a Y-axis slider; wherein: the X-axis slider is clamped on the X-axis silent module to fix the sound intensity probe; the input end of the X-axis silent module is electrically connected to the output end of the controller module to drive the X-axis slider to slide on the X-axis silent module; the Y-axis slider is clamped on the Y-axis silent module to fix the X-axis silent module so that the angle between the X-axis silent module and the Y-axis silent module is a right angle; the input end of the Y-axis silent module is electrically connected to the output end of the controller module to drive the Y-axis slider to slide on the Y-axis silent module; the input end of the X-axis silent module and the input end of the Y-axis silent module together serve as the driving end of the silent slider module.

[0016] In the above scheme, the X-axis mute module is fixed on the Y-axis mute module as a whole through the Y-axis slider, and the angle between the X-axis mute module and the Y-axis mute module is a right angle, that is, the X-axis mute module and the Y-axis mute module can form a cross slide mechanism as a whole. In the cross slide mechanism, the sound intensity probe can be driven to move horizontally by driving the X-axis slider, and the X-axis mute module as a whole (including the sound intensity probe) can be driven to move longitudinally by driving the Y-axis slider, thereby realizing the movement of the sound intensity probe on a two-dimensional plane, ensuring that the sound intensity probe can move along the preset measurement route and collect the sound insulation of the measured parts.

[0017] Furthermore, the silent slider module also includes an X-axis servo motor, a Y-axis servo motor, an X-flexible axis and a Y-flexible axis; the X-axis silent module includes an X-axis body, an X-axis driving wheel, an X-axis driven wheel and an X-axis conveyor belt; the Y-axis silent module includes a Y-axis body, a Y-axis driving wheel, a Y-axis driven wheel and a Y-axis conveyor belt; wherein: the input end of the X-axis servo motor is electrically connected to the output end of the controller module; the rotating end of the X-axis servo motor is connected to the X-axis driving wheel through the X-flexible axis; the X-axis driving wheel and the X-axis driven wheel are fixedly arranged at both ends of the X-axis body, and the X-axis conveyor belt is arranged around the X-axis main body The Y-axis driving wheel and the X-axis driven wheel are connected; the X-axis slider is clamped on the X-axis conveyor belt; the input end of the Y-axis servo motor is electrically connected to the output end of the controller module; the rotating end of the Y-axis servo motor is connected to the Y-axis driving wheel through the Y flexible shaft; the Y-axis driving wheel and the Y-axis driven wheel are fixedly arranged at both ends of the Y-axis body, and the Y-axis conveyor belt is arranged around the Y-axis driving wheel and the Y-axis driven wheel; the Y-axis slider is clamped on the Y-axis conveyor belt for fixing the X-axis body; the input end of the X-axis servo motor and the input end of the Y-axis servo motor are jointly used as the driving end of the silent slider module.

[0018] In the above scheme, the sliding process of the X-axis slider can be: the controller module generates a driving instruction for the next measurement position according to the preset measurement route, that is, determines the number of steps of the X-axis servo motor. The X-axis servo motor rotates based on the number of steps, and its rotation amount is transmitted to the X-axis driving wheel via the X-flexible shaft, that is, drives the X-axis driving wheel to rotate, and then drives the X-axis conveyor belt and the X-axis driven wheel to rotate, so that the X-axis slider connected to the X-axis conveyor belt slides. Among them, the sliding process of the X-axis slider can drive the lateral movement of the sound intensity probe.

[0019] Similarly, the sliding process of the Y-axis slider can be: the controller module generates a driving instruction for the next measurement position according to the preset measurement route, that is, determines the number of steps of the Y-axis servo motor. The Y-axis servo motor rotates based on the number of steps, and its rotation amount is transmitted to the Y-axis driving wheel via the Y flexible shaft, that is, drives the Y-axis driving wheel to rotate, and then drives the Y-axis conveyor belt and the Y-axis driven wheel to rotate, so that the Y-axis slider connected to the Y-axis conveyor belt slides. Among them, the sliding process of the Y-axis slider can drive the longitudinal movement of the entire X-axis mute module (including the sound intensity probe).

[0020] It should be noted that through the coordination between the internal module components of the silent slider module, the sound intensity probe can be moved at a uniform speed, so that the sound intensity probe can be accurately positioned at the position where it needs to be measured, thereby ensuring the accuracy of the measurement data.

[0021] Furthermore, the silent slider module also includes a soundproof electric cabinet; the soundproof electric cabinet is arranged on the soundproof wall; the X-axis servo motor is fixedly arranged inside the soundproof electric cabinet; and the Y-axis servo motor is fixedly arranged inside the soundproof electric cabinet.

[0022] In the above scheme, a soundproof electric cabinet is set up to accommodate the X-axis servo motor and the Y-axis servo motor, and is driven by the X-flexible axis and the Y-flexible axis. The purpose is to ensure the quietness of the equipment operation, ensure that the equipment meets the requirements of the silent laboratory, avoid the noise generated by the servo motor action from interfering with the measurement results, and improve the accuracy of the measurement results.

[0023] In the above solution, the control circuit can also be set in a soundproof electrical cabinet to ensure the quietness of the equipment operation.

[0024] Furthermore, a component sound insulation auxiliary measurement device provided by the present invention also includes a position sensor group, which includes a plurality of sensors, and the plurality of sensors are respectively arranged on the X-axis mute module and the Y-axis mute module, and their output ends are electrically connected to the input end of the controller module, so as to realize the origin setting and limit protection of the mute slider module.

[0025] In the above scheme, the position sensor group is used to sense the position of the X-axis slider and the Y-axis slider and provide real-time feedback to the controller module to facilitate the driving control of the controller module. Among them, an X-axis in-situ sensor can be set on the X-axis body, and a Y-axis in-situ sensor can be set on the Y-axis body. When the X-axis in-situ sensor senses the X-axis slider and the Y-axis in-situ sensor senses the Y-axis slider, the sound intensity probe is at the origin coordinate position, thereby completing the origin setting of the silent slider module. An X / Y-axis negative limit sensor and an X / Y-axis positive limit sensor can be set on the X / Y-axis body. When the X / Y-axis negative limit sensor or the X / Y-axis positive limit sensor senses the X / Y-axis slider, the controller module will stop driving and sound an alarm to ensure that the X / Y-axis slider only slides between the X / Y-axis negative limit sensor and the X / Y-axis positive limit sensor to avoid the X / Y-axis slider from derailing, thereby achieving limit protection for the silent slider module.

[0026] Furthermore, a connecting piece is provided on the Y-axis mute module; the connecting piece is used to fix the Y-axis mute module to the sound insulation wall.

[0027] In the above scheme, in order to facilitate the measurement of the auxiliary measuring equipment, after the measured parts are determined, the Y-axis mute module can be fixed on the sound insulation wall through the connecting parts, that is, the relative position relationship between the auxiliary measuring equipment and the measured parts is determined, and then the origin coordinate position and the preset measurement route can be determined, thereby improving the applicability and flexibility of the equipment measurement.

[0028] The present invention also provides a control method for a component sound insulation auxiliary measurement device, which is implemented by using the component sound insulation auxiliary measurement device as described above, and comprises the following steps:

[0029] Obtain control parameters and generate preset measurement routes;

[0030] A driving instruction is generated based on a preset measurement route to drive the silent slider module to slide on the back side of the sound insulation window according to the preset measurement route, thereby enabling the sound intensity probe to collect the sound insulation value of the measured component on the preset measurement route.

[0031] The control method provided by the above scheme can generate a preset measurement route by only obtaining control parameters, and then intelligently drive the silent slider module to slide on the back of the sound insulation window according to the preset measurement route, so that the sound intensity probe collects the sound insulation of the measured parts on the preset measurement route. This method can automatically measure the sound insulation volume, effectively reduce manual operation steps, reduce labor intensity, eliminate interference from human factors, and effectively improve measurement efficiency and accuracy of measurement data.

[0032] Furthermore, the method of obtaining control parameters and generating a preset measurement route includes: obtaining control parameters, including component width, component height and measurement line spacing of the measured component; generating origin coordinates, and obtaining a number of inflection point coordinates based on the origin coordinates, component width, component height and measurement line spacing; and generating a preset measurement route based on the origin coordinates and the number of inflection point coordinates.

[0033] In the above scheme, a preset measurement route can be generated according to the component width, component height and measurement line spacing of the measured component, so that the sound intensity probe can collect the sound insulation of the measured component on the preset measurement route. That is, the control method can intelligently generate a preset measurement route according to the measured component according to the measurement requirements, and can be applied to the sound insulation test of any automotive component.

[0034] It should be noted that for the measurement of a certain component, its preset measurement route can be stored and called, that is, there is no need to regenerate the measurement route each time, and it is only necessary to fix the measured component according to the preset position, thereby improving the measurement efficiency and ensuring that the control method can be applied to the industrial batch production process.

[0035] Further, the generating of the driving instruction based on the preset measurement route to drive the silent slider module to slide on the back side of the sound insulation window according to the preset measurement route, thereby causing the sound intensity probe to collect the sound insulation amount of the measured component on the preset measurement route, includes: generating the driving instruction based on the origin coordinates to drive the silent slider module to slide on the back side of the sound insulation window so that the sound intensity probe is located at the origin coordinates; and sequentially generating the driving instructions based on the preset time interval and a plurality of inflection point coordinates to drive the silent slider module to slide on the back side of the sound insulation window, thereby causing the sound intensity probe to collect the sound insulation amount of the measured component on the preset measurement route generated by the plurality of inflection point coordinates. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the structure of a component sound insulation auxiliary measurement device provided by one embodiment of the present invention;

[0037] Figure 2 A schematic diagram of circuit connection of a component sound insulation auxiliary measurement device provided by one embodiment of the present invention;

[0038] Figure 3 A schematic diagram of the internal structure connection of a soundproof electric cabinet provided by one embodiment of the present invention;

[0039] Figure 4 A schematic diagram of a preset measurement route provided by an embodiment of the present invention;

[0040] Among them: 1. Controller module; 11. Control panel; 12. Control circuit; 2. Soundproof wall; 3. Soundproof window; 4. Silent slider module; 41. X-axis silent module; 42. Y-axis silent module; 421. Connector; 43. X-axis slider; 44. Y-axis slider; 45. Soundproof electric cabinet; 46. X-axis servo motor; 47. Y-axis servo motor; 48. X-flexible axis; 49. Y-flexible axis; 5. Sound intensity probe; 6. Position sensor group; 61. X-axis in-situ sensor; 62. Y-axis in-situ sensor; 63. X-axis negative limit sensor; 64. Y-axis negative limit sensor; 65. X-axis positive limit sensor; 66. Y-axis positive limit sensor; 7. Measured parts; 8. Mounting plate. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1 and Figure 2 This embodiment provides a component sound insulation auxiliary measurement device, including a controller module 1, a sound insulation wall 2, a sound insulation window 3, a silent slider module 4 and a sound intensity probe 5; wherein:

[0043] The soundproof window 3 is provided on the soundproof wall 2, and the front side thereof is used for fixing the tested component 7;

[0044] The sound intensity probe 5 is fixed on the silent slider module 4, and its output end is electrically connected to the input end of the controller module 1;

[0045] The output end of the controller module 1 is electrically connected to the driving end of the silent slider module 4, and is used to drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to a preset measurement route, so that the sound intensity probe 5 can collect the sound insulation value of the measured component 7 on the preset measurement route.

[0046] In this embodiment, it is only necessary to fix the measured component 7 on the front of the sound insulation window 3, set a preset measurement route through the controller module 1, and drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so as to control the sound intensity probe 5 to collect the sound insulation of the measured component 7 on the preset measurement route. The entire measurement process does not require manual operation, ensuring the consistency of the trajectory and speed of the sound intensity probe 5 during operation, and can realize intelligent measurement of the sound insulation of the components, effectively improving the measurement efficiency and the accuracy of the measurement data.

[0047] It should be noted that the sound insulation wall 2 is used to divide the entire measurement environment into a sound source area and a measurement area, providing appropriate environmental conditions for measuring the sound insulation of the measured component 7. The sound insulation window 3 is used to determine the position of the measured component 7 to facilitate the generation of a preset measurement route. The size of the sound insulation window 3 can generally be larger than the size of the measured component 7 to ensure that the entire measured component 7 is in the area of ​​the sound insulation window 3 to ensure the consistency of the measurement data.

[0048] Furthermore, the controller module 1 includes a control panel 11 and a control circuit 12; wherein: the output end of the control panel 11 is electrically connected to the input end of the control circuit 12; the control panel 11 is used to input control parameters to obtain a preset measurement route, and transmit the preset measurement route to the control circuit 12; the input end of the control circuit 12 is electrically connected to the output end of the sound intensity probe 5; the output end of the control circuit 12 is electrically connected to the driving end of the silent slider module 4, and is used to drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so that the sound intensity probe 5 collects the sound insulation of the measured component 7 on the preset measurement route.

[0049] In this embodiment, the control panel 11 can provide the experimenter with a platform for setting parameters. After the component 7 to be measured is fixed on the front of the soundproof window 3, the control parameters such as the origin coordinates, component width, component height and measurement line spacing can be input to the control circuit 12 through the control panel 11, so as to obtain the preset measurement route, facilitate the subsequent control circuit 12 to drive the silent slider module 4, realize the measurement of the sound insulation volume of the determined position of the component 7 to be measured, and improve the targetedness of the measurement.

[0050] In this embodiment, the control circuit 12 can be implemented by a PLC controller circuit, which generates corresponding control instructions in sequence through a preset measurement route to drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so that the sound intensity probe 5 collects the sound insulation of the measured component 7 on the preset measurement route. The entire control process is automated, without the need for human participation, eliminating interference from human factors, and thus effectively improving the accuracy of the measurement data.

[0051] It should be noted that the sound insulation measured by the sound intensity probe 5 can be transmitted from the output end of the sound intensity probe 5 to the input end of the control circuit 12. The control circuit 12 can be a PLC controller circuit, which has a servo motor control program, a running track inflection point coordinate calculation program, an operation panel mapping program and a safety control program preset therein, and can perform data storage, analysis and processing, sound intensity probe 5 coordinate display or data display and other related operations.

[0052] Furthermore, the mute slider module 4 includes an X-axis mute module 41, a Y-axis mute module 42, an X-axis slider 43 and a Y-axis slider 44; wherein: the X-axis slider 43 is clamped on the X-axis mute module 41 to fix the sound intensity probe 5; the input end of the X-axis mute module 41 is electrically connected to the output end of the controller module 1 to drive the X-axis slider 43 to slide on the X-axis mute module 41; the Y-axis slider 44 is clamped on the Y-axis mute module 42 to fix the X-axis mute module 41 so that the angle between the X-axis mute module 41 and the Y-axis mute module 42 is a right angle; the input end of the Y-axis mute module 42 is electrically connected to the output end of the controller module 1 to drive the Y-axis slider 44 to slide on the Y-axis mute module 42; the input end of the X-axis mute module 41 and the input end of the Y-axis mute module 42 together serve as the driving end of the mute slider module 4.

[0053] In this embodiment, the X-axis mute module 41 is fixed on the Y-axis mute module 42 as a whole through the Y-axis slider 44, and the angle between the X-axis mute module 41 and the Y-axis mute module 42 is a right angle, that is, the X-axis mute module 41 and the Y-axis mute module 42 can form a cross slide mechanism as a whole. In the cross slide mechanism, the sound intensity probe 5 can be driven to move in the horizontal direction by driving the X-axis slider 43, and the X-axis mute module 41 as a whole (including the sound intensity probe 5) can be driven to move in the longitudinal direction by driving the Y-axis slider 44, so as to realize the movement of the sound intensity probe 5 in the two-dimensional plane, and ensure that the sound intensity probe 5 can move along the preset measurement route and collect the sound insulation of the measured component 7.

[0054] It should be noted that, in order to ensure the stability of the connection between the sound intensity probe 5 and the X-axis slider 43, a mounting plate 8 can be fixedly arranged on the X-axis slider 43, and then the sound intensity probe 5 can be fixed on the mounting plate 8. The mounting plate 8 and the X-axis slider 43 can be connected in various ways, including plug-in connection, threaded connection, etc., and the mounting plate 8 is provided with a connecting component specifically used for installing the sound intensity probe 5, which can achieve a stable connection to the sound intensity probe 5.

[0055] Furthermore, the silent slider module 4 also includes an X-axis servo motor 46, a Y-axis servo motor 47, an X-axis flexible shaft 48 and a Y-axis flexible shaft 49; the X-axis silent module 41 includes an X-axis body, an X-axis driving wheel, an X-axis driven wheel and an X-axis conveyor belt; the Y-axis silent module 42 includes a Y-axis body, a Y-axis driving wheel, a Y-axis driven wheel and a Y-axis conveyor belt; wherein: the input end of the X-axis servo motor 46 is electrically connected to the output end of the controller module 1; the rotating end of the X-axis servo motor 46 is connected to the X-axis driving wheel through the X-flexible shaft 48; the X-axis driving wheel and the X-axis driven wheel are fixedly arranged at both ends of the X-axis body, and the X-axis conveyor belt is arranged around the X The Y-axis driving wheel and the Y-axis driven wheel are fixedly arranged at both ends of the Y-axis body, and the Y-axis conveyor belt is arranged around the Y-axis driving wheel and the Y-axis driven wheel; the X-axis slider 43 is clamped on the X-axis conveyor belt; the input end of the Y-axis servo motor 47 is electrically connected to the output end of the controller module 1; the rotating end of the Y-axis servo motor 47 is connected to the Y-axis driving wheel through the Y flexible shaft 49; the Y-axis driving wheel and the Y-axis driven wheel are fixedly arranged at both ends of the Y-axis body, and the Y-axis conveyor belt is arranged around the Y-axis driving wheel and the Y-axis driven wheel; the Y-axis slider 44 is clamped on the Y-axis conveyor belt for fixing the X-axis body; the input end of the X-axis servo motor 46 and the input end of the Y-axis servo motor 47 together serve as the driving end of the silent slider module 4.

[0056] In this embodiment, the sliding process of the X-axis slider 43 can be: the controller module 1 generates a driving instruction for the next measurement position according to the preset measurement route, that is, determines the number of steps of the X-axis servo motor 46. The X-axis servo motor 46 rotates based on the number of steps, and its rotation amount is transmitted to the X-axis driving wheel via the X-flexible shaft 48, that is, drives the X-axis driving wheel to rotate, and then drives the X-axis conveyor belt and the X-axis driven wheel to rotate, so that the X-axis slider 43 clamped on the X-axis conveyor belt slides. Among them, the sliding process of the X-axis slider 43 can drive the lateral movement of the sound intensity probe 5.

[0057] Similarly, the sliding process of the Y-axis slider 44 can be: the controller module 1 generates a driving instruction for the next measurement position according to the preset measurement route, that is, determines the number of steps of the Y-axis servo motor 47. The Y-axis servo motor 47 rotates based on the number of steps, and its rotation amount is transmitted to the Y-axis driving wheel via the Y flexible shaft 49, that is, drives the Y-axis driving wheel to rotate, and then drives the Y-axis conveyor belt and the Y-axis driven wheel to rotate, so that the Y-axis slider 44 connected to the Y-axis conveyor belt slides. Among them, the sliding process of the Y-axis slider 44 can drive the longitudinal movement of the entire X-axis mute module 41 (including the sound intensity probe 5).

[0058] It should be noted that, through the coordination between the internal module components of the silent slider module 4, the uniform movement of the sound intensity probe 5 can be achieved, so that the sound intensity probe 5 can be accurately positioned at the position where it needs to be measured, thereby ensuring the accuracy of the measurement data.

[0059] For further information, see Figure 1 and Figure 3 The silent slider module 4 also includes a soundproof electric cabinet 45; the soundproof electric cabinet 45 is arranged on the soundproof wall 2; the X-axis servo motor 46 is fixedly arranged inside the soundproof electric cabinet 45; the Y-axis servo motor 47 is fixedly arranged inside the soundproof electric cabinet 45.

[0060] In this embodiment, a soundproof electrical cabinet 45 is provided to accommodate an X-axis servo motor 46 and a Y-axis servo motor 47, and is driven by an X-flexible shaft 48 and a Y-flexible shaft 49. The purpose is to ensure the quietness of the equipment operation, ensure that the equipment meets the requirements of a silent laboratory, avoid the noise generated by the servo motor operation from interfering with the measurement results, and improve the accuracy of the measurement results.

[0061] In this embodiment, the control circuit 12 may also be disposed in a soundproof electrical cabinet 45 to ensure quiet operation of the device.

[0062] Furthermore, the auxiliary measurement equipment for the sound insulation of components provided in this embodiment also includes a position sensor group 6, which includes a plurality of sensors, and the plurality of sensors are respectively arranged on the X-axis mute module 41 and the Y-axis mute module 42, and their output ends are electrically connected to the input end of the controller module 1, so as to realize the origin setting and limit protection of the mute slider module 4.

[0063] In this embodiment, the position sensor group 6 is used to sense the positions of the X-axis slider 43 and the Y-axis slider 44 and provide real-time feedback to the controller module 1 to facilitate the driving control of the controller module 1. Among them, an X-axis in-situ sensor 61 can be set on the X-axis body, and a Y-axis in-situ sensor 62 can be set on the Y-axis body. When the X-axis in-situ sensor 61 senses the X-axis slider 43 and the Y-axis in-situ sensor 62 senses the Y-axis slider 44, the sound intensity probe 5 is at the origin coordinate position, thereby completing the origin setting of the silent slider module 4.

[0064] In one embodiment, an X-axis negative limit sensor 63 and an X-axis positive limit sensor 65 can be set on the X-axis body. When the X-axis negative limit sensor 63 or the X-axis positive limit sensor 65 senses the X-axis slider 43, the controller module 1 will stop driving and issue an alarm to ensure that the X-axis slider 43 only slides between the X-axis negative limit sensor 63 and the X-axis positive limit sensor 65 to avoid the X-axis slider 43 from derailing, thereby achieving limit protection for the silent slider module 4.

[0065] In one embodiment, a Y-axis negative limit sensor 64 and a Y-axis positive limit sensor 66 can be set on the Y-axis body. When the Y-axis negative limit sensor 64 or the Y-axis positive limit sensor 66 senses the Y-axis slider 44, the controller module 1 will stop driving and issue an alarm to ensure that the Y-axis slider 44 only slides between the Y-axis negative limit sensor 64 and the Y-axis positive limit sensor 66 to avoid the Y-axis slider 44 from derailing, thereby achieving limit protection for the silent slider module 4.

[0066] It should be noted that the X-axis in-situ sensor 61 can be installed 3-5 mm inside the X-axis positive limit sensor 65, and the Y-axis in-situ sensor 62 can be installed 3-5 mm inside the Y-axis positive limit sensor 66, so as to facilitate the calculation of coordinates.

[0067] Furthermore, a connecting piece 421 is provided on the Y-axis mute module 42 ; the connecting piece 421 is used to fix the Y-axis mute module 42 to the sound insulation wall 2 .

[0068] In one embodiment, in order to facilitate the measurement of the auxiliary measuring device, after the measured component 7 is determined, the Y-axis mute module 42 can be fixed on the sound insulation wall 2 through the connecting piece 421, that is, the relative position relationship between the auxiliary measuring device and the measured component 7 is determined, and then the origin coordinate position and the preset measurement route can be determined, thereby improving the applicability and flexibility of the equipment measurement.

[0069] Furthermore, in order to facilitate the measurement of the auxiliary measurement device, an in-situ button can be set on the control panel 11, and the output end of the button is electrically connected to the input end of the control circuit 12, which is used to input specific instructions to the control circuit 12, that is, the control circuit 12 can generate an in-situ coordinate drive instruction to drive the X-axis slider 43 and the Y-axis slider 44 to slide respectively, and finally align the sound intensity probe 5 with the origin coordinate.

[0070] This embodiment also provides a control method for a component sound insulation auxiliary measurement device, which is implemented by using the component sound insulation auxiliary measurement device as described above, and includes the following steps:

[0071] Obtain control parameters and generate preset measurement routes;

[0072] A driving instruction is generated based on a preset measurement route to drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so that the sound intensity probe 5 collects the sound insulation value of the measured component 7 on the preset measurement route.

[0073] The control method provided in this embodiment can generate a preset measurement route by only obtaining control parameters, and then intelligently drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so that the sound intensity probe 5 collects the sound insulation of the measured component 7 on the preset measurement route. The method can automatically measure the sound insulation volume, effectively reduce manual operation steps, reduce labor intensity, eliminate interference from human factors, and effectively improve the efficiency of measurement and the accuracy of measurement data.

[0074] Furthermore, the method of obtaining control parameters and generating a preset measurement route includes: obtaining control parameters, including a component width A, a component height B and a measurement line spacing C of the measured component 7; generating origin coordinates, and obtaining a number of inflection point coordinates based on the origin coordinates, the component width A, the component height B and the measurement line spacing C; and generating a preset measurement route based on the origin coordinates and the number of inflection point coordinates.

[0075] Further, see Figure 4 As shown, the component 7 to be measured is displayed in a planar manner on the XY coordinate axis. In the process of generating the preset measurement route, the origin coordinates (x0, y0) must be determined first ( Figure 4The upper left corner endpoint). Then, keeping y0 unchanged, obtain the horizontal coordinate x1 according to the component width A, and obtain the first inflection point coordinate (x1, y0). Then, keeping x1 unchanged, obtain the vertical coordinate y1 according to the measurement line spacing C, and obtain the second inflection point coordinate (x1, y1). And so on, after traversing the entire measured component 7, several inflection point coordinates can be obtained. The preset measurement route can be obtained by connecting the origin coordinate and several inflection point coordinates in sequence.

[0076] It should be noted that when the component 7 to be tested is an irregular component, its origin coordinates and inflection point coordinates can be set specifically to make the device suitable for sound insulation testing of all types of components.

[0077] In this embodiment, a preset measurement route can be generated according to the component width A, component height B and measurement line spacing C of the measured component 7, and then the sound intensity probe 5 is made to collect the sound insulation value of the measured component 7 on the preset measurement route. That is, the control method can intelligently generate a preset measurement route according to the measured component 7 according to the measurement requirements, and can be applied to the sound insulation value test of any automobile component.

[0078] It should be noted that for the measurement of a certain component, its preset measurement route can be stored and called, that is, there is no need to regenerate the measurement route each time, and it is only necessary to fix the measured component 7 according to the preset position, thereby improving the measurement efficiency and ensuring that the control method can be applied to the industrial batch production process.

[0079] Further, the generating of the driving instruction based on the preset measurement route to drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so as to make the sound intensity probe 5 collect the sound insulation amount of the measured component 7 on the preset measurement route, includes: generating the driving instruction based on the origin coordinate to drive the silent slider module 4 to slide on the back of the sound insulation window 3 so that the sound intensity probe 5 is located at the origin coordinate; and sequentially generating the driving instructions based on the preset time interval and the coordinates of several inflection points to drive the silent slider module 4 to slide on the back of the sound insulation window 3, so as to make the sound intensity probe 5 collect the sound insulation amount of the measured component 7 on the preset measurement route generated by the coordinates of several inflection points.

[0080] In this embodiment, the following steps may be used to measure the sound insulation of the component 7 under test, including:

[0081] S1: The device is powered on, and the experimenter presses the home button to slide the X-axis slider 43 and the Y-axis slider 44 respectively, and finally aligns the sound intensity probe 5 with the origin coordinate;

[0082] It should be noted that S1 can also manually control the X-axis slider 43 and the Y-axis slider 44 to make the sound intensity probe 5 close to the upper left corner of the measured component 7, and obtain the current coordinates through the control panel 11 as the origin coordinates;

[0083] S2: Install the tested component 7 on the front of the sound insulation window 3 and turn on the sound source;

[0084] S3: The experimenter inputs the component width A, component height B and measurement line spacing C from the control panel 11, and starts the PLC controller circuit operation;

[0085] It should be noted that the measurement line spacing C can be determined according to the measurement requirements of the measured component 7, and is generally 20-30 mm;

[0086] S4: In response to the driving instruction corresponding to the origin coordinate, the X-axis slider 43 and the Y-axis slider 44 slide respectively, and finally align the sound intensity probe 5 with the origin coordinate; at this time, the PLC controller circuit turns on the sound intensity probe 5 for measurement, and records the measurement data of the sound intensity probe 5;

[0087] S5: The PLC controller circuit controls the X-axis slider 43 to slide forward by a component width A. After completing the first lateral measurement, it is determined whether the current position meets the requirements for the next measurement. If not, the measurement ends. If so, the following steps are performed:

[0088] S6: The PLC controller circuit controls the Y-axis slider 44 to slide forward by a measurement line distance C, and after completing the first longitudinal measurement, the controller circuit controls the X-axis slider 43 to slide backward by a component width A, and completes the second transverse measurement. At this time, it is necessary to determine whether the current position meets the requirements for the next measurement; if not, the measurement ends; if so, return to step S5;

[0089] Repeat steps S5 and S6 until the measurement is completed.

[0090] The control method provided in this embodiment can generate a preset measurement route by only obtaining control parameters, and then intelligently drive the silent slider module 4 to slide on the back of the sound insulation window 3 according to the preset measurement route, so that the sound intensity probe 5 collects the sound insulation of the measured component 7 on the preset measurement route. The method can automatically measure the sound insulation volume, effectively reduce manual operation steps, reduce labor intensity, eliminate interference from human factors, and effectively improve the efficiency of measurement and the accuracy of measurement data.

[0091] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A device for auxiliary measurement of sound insulation of components, characterized in that: It comprises a controller module (1), a sound insulation wall (2), a sound insulation window (3), a silent slider module (4) and a sound intensity probe (5); wherein: The sound insulation window (3) is arranged on the sound insulation wall (2), and its front side is used for fixing the components to be tested; The sound intensity probe (5) is fixed on the silent slider module (4), and its output end is electrically connected to the input end of the controller module (1); The output end of the controller module (1) is electrically connected to the driving end of the silent slider module (4) and is used to drive the silent slider module (4) to slide on the back side of the sound insulation window (3) according to a preset measurement route, so that the sound intensity probe (5) collects the sound insulation value of the measured component on the preset measurement route.

2. The auxiliary measurement device for sound insulation of components according to claim 1, characterized in that: The controller module (1) comprises a control panel (11) and a control circuit (12); wherein: The output end of the control panel (11) is electrically connected to the input end of the control circuit (12); the control panel (11) is used to input control parameters to obtain a preset measurement route, and transmit the preset measurement route to the control circuit (12); The input end of the control circuit (12) is electrically connected to the output end of the sound intensity probe (5); The output end of the control circuit (12) is electrically connected to the driving end of the silent slider module (4) and is used to drive the silent slider module (4) to slide on the back side of the sound insulation window (3) according to a preset measurement route, so that the sound intensity probe (5) collects the sound insulation value of the measured component on the preset measurement route.

3. The auxiliary measurement device for sound insulation of components according to claim 1, characterized in that: The silent slider module (4) comprises an X-axis silent module (41), a Y-axis silent module (42), an X-axis slider (43) and a Y-axis slider (44); wherein: The X-axis slider (43) is clamped on the X-axis mute module (41) and is used to fix the sound intensity probe (5); The input end of the X-axis mute module (41) is electrically connected to the output end of the controller module (1) and is used to drive the X-axis slider (43) to slide on the X-axis mute module (41); The Y-axis sliding block (44) is clamped on the Y-axis mute module (42) and is used to fix the X-axis mute module (41) so that the angle between the X-axis mute module (41) and the Y-axis mute module (42) is a right angle; The input end of the Y-axis mute module (42) is electrically connected to the output end of the controller module (1) and is used to drive the Y-axis slider (44) to slide on the Y-axis mute module (42); The input end of the X-axis mute module (41) and the input end of the Y-axis mute module (42) together serve as the driving end of the mute slider module (4).

4. The auxiliary measurement device for sound insulation of components according to claim 3, characterized in that: The silent slider module (4) further comprises an X-axis servo motor (46), a Y-axis servo motor (47), an X-flexible shaft (48) and a Y-flexible shaft (49); the X-axis silent module (41) comprises an X-axis main body, an X-axis driving wheel, an X-axis driven wheel and an X-axis conveyor belt; the Y-axis silent module (42) comprises a Y-axis main body, a Y-axis driving wheel, a Y-axis driven wheel and a Y-axis conveyor belt; wherein: The input end of the X-axis servo motor (46) is electrically connected to the output end of the controller module (1); the rotating end of the X-axis servo motor (46) is connected to the X-axis driving wheel through the X-flexible shaft (48); The X-axis driving wheel and the X-axis driven wheel are fixedly arranged at two ends of the X-axis body, and the X-axis conveyor belt is arranged around the X-axis driving wheel and the X-axis driven wheel; the X-axis slider (43) is clamped on the X-axis conveyor belt; The input end of the Y-axis servo motor (47) is electrically connected to the output end of the controller module (1); the rotating end of the Y-axis servo motor (47) is connected to the Y-axis driving wheel through the Y flexible shaft (49); The Y-axis driving wheel and the Y-axis driven wheel are fixedly arranged at both ends of the Y-axis body, and the Y-axis conveyor belt is arranged around the Y-axis driving wheel and the Y-axis driven wheel; the Y-axis slider (44) is clamped on the Y-axis conveyor belt to fix the X-axis body; The input end of the X-axis servo motor (46) and the input end of the Y-axis servo motor (47) serve together as the driving end of the silent slider module (4).

5. The auxiliary measurement device for sound insulation of components according to claim 4, characterized in that: The silent slider module (4) further comprises a soundproof electric cabinet (45); the soundproof electric cabinet (45) is arranged on the soundproof wall (2); the X-axis servo motor (46) is fixedly arranged inside the soundproof electric cabinet (45); and the Y-axis servo motor (47) is fixedly arranged inside the soundproof electric cabinet (45).

6. The auxiliary measurement device for sound insulation of components according to claim 3, characterized in that: It also includes a position sensor group (6), the position sensor group (6) including a plurality of sensors, the plurality of sensors being respectively arranged on the X-axis silent module (41) and the Y-axis silent module (42), the output ends of which are electrically connected to the input end of the controller module (1), so as to realize the origin setting and limit protection of the silent slider module (4).

7. The auxiliary measurement device for sound insulation of components according to any one of claims 3 to 6, characterized in that: The Y-axis mute module (42) is provided with a connecting piece (421); the connecting piece (421) is used to fix the Y-axis mute module (42) to the sound insulation wall (2).

8. A control method for auxiliary measurement equipment of sound insulation of components, characterized in that: The method is implemented by using a component sound insulation auxiliary measurement device as claimed in any one of claims 1 to 7, comprising the following steps: Obtain control parameters and generate preset measurement routes; A driving instruction is generated based on a preset measurement route to drive the silent slider module (4) to slide on the back side of the sound insulation window (3) according to the preset measurement route, thereby enabling the sound intensity probe (5) to collect the sound insulation value of the measured component on the preset measurement route.

9. The control method of the component sound insulation auxiliary measurement device according to claim 8, characterized in that: The obtaining of control parameters and generating a preset measurement route includes: Obtain control parameters, including component width, component height, and measurement line spacing of the measured component; Generate origin coordinates, and obtain several inflection point coordinates based on the origin coordinates, component width, component height, and measurement line spacing; A preset measurement route is generated based on the origin coordinates and several inflection point coordinates.

10. The control method of the component sound insulation auxiliary measurement device according to claim 9, characterized in that: The generating of a driving instruction based on a preset measurement route to drive the silent slider module (4) to slide on the back side of the sound insulation window (3) according to the preset measurement route, thereby causing the sound intensity probe (5) to collect the sound insulation value of the measured component on the preset measurement route, comprises: Generating a driving instruction based on the origin coordinates to drive the silent slider module (4) to slide on the back side of the sound insulation window (3) so that the sound intensity probe (5) is located at the origin coordinates; Based on a preset time interval and a plurality of inflection point coordinates, driving instructions are sequentially generated to drive the silent slider module (4) to slide on the back side of the sound insulation window (3), thereby enabling the sound intensity probe (5) to collect the sound insulation value of the measured component on a preset measurement route generated by the plurality of inflection point coordinates.

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