Test device

Abstract

The application discloses a testing device which comprises a lifting adjusting module, a first horizontal adjusting module and an elevation adjusting module. The lifting adjusting module comprises a first mounting seat, a screw sleeve and a stand column. The screw sleeve is rotationally sleeved on the outer circumferential wall of the first mounting seat. An activity space is formed between the inner circumferential wall of the screw sleeve and the outer circumferential wall of the first mounting seat. The inner circumferential wall of the screw sleeve is provided with an adjusting thread. The stand column is movably arranged in the first mounting seat. The outer wall of the stand column is provided with an adjusting convex part. The end of the adjusting convex part away from the stand column is slidingly limited in the thread groove of the adjusting thread. The first horizontal adjusting module is connected with the stand column. The elevation adjusting module is arranged at the output end of the first horizontal adjusting module. The elevation adjusting module is used for mounting an acoustic module and adjusting the pitch angle of the acoustic module. The first horizontal adjusting module is used for adjusting the horizontal position of the elevation adjusting module. The testing device can adjust the acoustic module in multiple postures.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical equipment, in particular to a testing device. BACKGROUND

[0002] Electronic devices such as smart watches and bracelets, Bluetooth earphones, sound boxes, operation handles and the like are integrated with acoustic modules such as sound pickup units or sound emitting units, and the acoustic performance of the acoustic modules in these electronic devices needs to be tested before they are shipped.

[0003] In the related art, a testing jig for testing the acoustic performance of the acoustic module is generally provided on the production line of the electronic device, but the testing jig used on the production line has a single adjustment mode for the posture of the acoustic module to be tested, and the testing jig can only fix the acoustic module to be tested at a specific angle, which is difficult to simulate the posture of the acoustic module when it is actually assembled in the electronic device and actually used, and it is also difficult to accurately align the acoustic module to be tested with each device in the test system for collecting test information to obtain test results, which results in inaccurate test data of the acoustic module. SUMMARY

[0004] The main purpose of the present application is to provide a testing device, which aims to realize multi-posture adjustment of the acoustic module to be tested and improve the reliability of acoustic module testing.

[0005] To achieve the above purpose, the present application provides a testing device for testing the performance of an acoustic module, which comprises:

[0006] A lifting adjustment module, which comprises a first mounting seat, a screw sleeve and a column, the screw sleeve is sleeved on the outer peripheral wall of the first mounting seat and can rotate along the circumferential direction of the first mounting seat; an active space is formed between the inner peripheral wall of the screw sleeve and the outer peripheral wall of the first mounting seat, and the inner peripheral wall of the screw sleeve is provided with an adjusting thread; the column is movably arranged in the first mounting seat, and the outer wall of the column is provided with an adjusting convex part, one end of the adjusting convex part away from the column is slidingly limited in the thread groove of the adjusting thread; when the screw sleeve rotates relative to the first mounting seat, the adjusting convex part can move along the adjusting thread to realize the lifting adjustment of the column;

[0007] A first horizontal adjustment module, which is connected with the column; and

[0008] An elevation angle adjustment module, which is arranged at the output end of the first horizontal adjustment module, and is used for installing the acoustic module and adjusting the pitch angle of the acoustic module; the first horizontal adjustment module is used for adjusting the horizontal position of the elevation angle adjustment module.

[0009] In an embodiment of the present application, the first mounting base comprises:

[0010] a base; and

[0011] a guide column arranged on the base, the sleeve being sleeved on the guide column and surrounding an outer wall of the guide column to form the movable space; the guide column is internally provided with a guide channel, the column being slidingly limited in the guide channel; the outer wall of the guide column is provided with a guide groove vertically extending and communicating with the guide channel, the adjusting protrusion being slidingly limited in the guide groove.

[0012] In an embodiment of the present application, the first mounting base further comprises a limiting member, the limiting member being arranged at an end of the guide column away from the base, and the sleeve being limited between the base and the limiting member.

[0013] In an embodiment of the present application, the limiting member is sleeved on the outer peripheral wall of the guide column, the limiting member is provided with a first through hole, the guide column is provided with a second through hole communicating with the first through hole and the guide channel, and at least one of the first through hole and the second through hole is provided with an internal thread;

[0014] The lifting and adjusting module further comprises a first locking member provided with an external thread, the first locking member penetrating through the first through hole and the second through hole and abutting against the column, and the first locking member being fixed with the limiting member, the guide column and the column through cooperation of the external thread and the internal thread.

[0015] In an embodiment of the present application, the first horizontal adjusting module comprises two displacement adjusting mechanisms, the two displacement adjusting mechanisms being stacked on the column and used for realizing position adjustment of the elevation angle adjusting module in two perpendicular directions; the displacement adjusting mechanism comprises:

[0016] a second mounting base;

[0017] a sliding block slidingly connected with the second mounting base; the sliding block and the second mounting base surrounding to form a cavity, the sliding block being provided with a rack, the rack being located in the cavity; and

[0018] an adjusting rod rotatingly penetrating through the second mounting base, an outer peripheral wall of the adjusting rod being sleeved with a gear, the gear and part of structure of the adjusting rod being located in the cavity, and the gear being engaged with the rack; the adjusting rod being capable of driving the sliding block to linearly move relative to the second mounting base through cooperation of the gear and the rack when rotating.

[0019] In an embodiment of the present application, the sliding block is provided with a protrusion extending into the cavity, and the protrusion being provided with the rack on a side away from the sliding block.

[0020] The second mounting base is provided with a third through hole communicating with the cavity, the third through hole is provided with an internal thread, the displacement adjusting mechanism further comprises a second locking member, the second locking member is provided with an external thread, the second locking member passes through the third through hole and abuts against the protruding block, and the second locking member fixes the protruding block and the second mounting base through cooperation of the external thread and the internal thread.

[0021] In an embodiment of the present application, the second mounting base is provided with a through slot, and the two side walls of the through slot are provided with positioning grooves having two side walls arranged at an included angle;

[0022] The sliding block covers at least part of the slot of the through slot and abuts against the periphery of the slot of the through slot in sliding mode; one side of the sliding block facing the gear is provided with a dovetail part, the two ends of the dovetail part are respectively limited in sliding mode in the two positioning grooves, and the rack is arranged on the dovetail part.

[0023] In an embodiment of the present application, the elevation angle adjusting module comprises:

[0024] A third mounting base is arranged at the output end of the first horizontal adjusting module, and the third mounting base is provided with two mounting parts arranged at intervals;

[0025] A mounting frame is arranged between the two mounting parts and is rotatably connected with the two mounting parts; the mounting frame is used for mounting and fixing the acoustic module; and

[0026] A push rod is screwed and arranged in the third mounting base, the push rod abuts against part of the structure of the mounting frame, and the push rod can drive the mounting frame to rotate relative to the two mounting parts when the push rod rotates.

[0027] In an embodiment of the present application, the third mounting base is provided with a limiting groove, and the limiting groove is arranged between the two mounting parts;

[0028] The mounting frame has an extension part extending into the limiting groove, and part of the structure of the push rod extends into the limiting groove and abuts against the extension part.

[0029] In an embodiment of the present application, the test device further comprises a rotating module, the rotating module is arranged on the stand and is connected with the first horizontal adjusting module, and the rotating module is used for realizing horizontal rotation adjustment of the first horizontal adjusting module;

[0030] And / or, the test device further comprises a second horizontal adjusting module, the first mounting base is arranged at the output end of the second horizontal adjusting module, and the second horizontal adjusting module is used for cooperating with the first horizontal adjusting module to realize horizontal position adjustment of the acoustic module.

[0031] The technical scheme of the present application sets an elevation angle adjusting module capable of fixing the acoustic module in the test device, adjusts the pitch angle of the acoustic module through the elevation angle adjusting module, adjusts the horizontal position of the fixed acoustic module through the first horizontal adjusting module capable of driving the elevation angle adjusting module to move horizontally, adjusts the acoustic module through the lifting adjusting module capable of driving the first horizontal adjusting module to move up and down, so that the test device can adjust the horizontal position, vertical position and pitch angle of the acoustic module to be tested, adjust the posture of the acoustic device according to the test needs of the actual test environment, simulate the posture of the acoustic module when actually assembled in the electronic device and actually used, obtain test data closer to the actual use scene of the acoustic module, and improve the accuracy and reliability of the acoustic module test. In addition, the lifting adjusting module adjusts the acoustic module through the rotating screw and drives the adjusting convex part and the column to move up and down through the internal thread of the screw, so that the adjusting module no longer needs to be configured with a corresponding air-driven or electric-driven device to drive, reduces the number of components of the test device, compresses the volume of the test device, enables the test module to be transplanted and used in test scenes with different sizes of space such as laboratories and production lines, and improves the applicability of the test device. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the drawings shown.

[0033] Figure 1 FIG. 1 is a structural schematic diagram of the test device of the present application;

[0034] Figure 2 FIG. 2 is a sectional structural schematic diagram of the lifting adjusting module in the test device of the present application; Figure 1

[0035] Figure 3 Figure 1

[0036] Figure 4 Figure 1 FIG. 6 is a structural schematic diagram of the elevation angle adjusting module in the test device of the present application.

[0037] Explanation of reference signs:

[0038]

[0039] ​​​​

[0040] The objectives, functional characteristics and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0042] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, motion condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications also change accordingly.

[0043] In the present application, unless otherwise explicitly specified and limited, the terms “connection”, “fixation” and the like should be understood in a broad sense, for example, “fixation” can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In addition, the description such as “first”, “second” and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first”, “second” can explicitly or implicitly include at least one of the features. The meaning of “and / or”, “and / or” appearing throughout the text is the same, which means including three parallel schemes. Taking “A and / or B” as an example, it includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0045] The embodiments of the present application provide a test device for testing the performance of an acoustic module. The acoustic module to be tested can be a sound pickup device or a sound generating device, such as a microphone and a loudspeaker. Figure 1 and Figure 2As shown, the test device comprises a lifting adjustment module 1, a first horizontal adjustment module 2 and an elevation adjustment module 3. The lifting adjustment module 1 comprises a first mounting seat 11, a sleeve 12 and a column 13. The sleeve 12 is sleeved on the outer circumferential wall of the first mounting seat 11 and can rotate along the circumferential direction of the first mounting seat 11. An active space 1a is formed between the inner circumferential wall of the sleeve 12 and the outer circumferential wall of the first mounting seat 11. The inner circumferential wall of the sleeve 12 is provided with an adjustment thread. The column 13 is movably arranged in the first mounting seat 11. The outer wall of the column 13 is provided with an adjustment protrusion 131. The end of the adjustment protrusion 131 away from the column 13 is slidingly limited in the thread groove of the adjustment thread. When the sleeve 12 rotates relative to the first mounting seat 11, the adjustment protrusion 131 can be driven to move along the adjustment thread, so as to realize the lifting adjustment of the column 13. The first horizontal adjustment module 2 is connected with the column 13. The elevation adjustment module 3 is arranged at the output end of the first horizontal adjustment module 2. The elevation adjustment module 3 is used for mounting an acoustic module and realizing the pitch angle adjustment of the acoustic module. The first horizontal adjustment module 2 is used for realizing the horizontal position adjustment of the elevation adjustment module 3.

[0046] In the embodiment, the lifting adjustment module 1 is used for realizing the lifting adjustment of the acoustic module to be tested, so as to change the height position of the acoustic module to be tested. The first mounting seat 11 and the sleeve 12 in the lifting adjustment module 1 are arranged in a nested mode. The cross-sectional shape of the first mounting seat 11 can be T-shaped or H-shaped. The sleeve 12 is sleeved on the outer circumferential wall of the first mounting seat 11 and is spaced from the first mounting seat 11, so as to form the active space 1a. The sleeve 12 has a hollow structure. The inner circumferential wall of the sleeve 12 is formed with a plurality of threads, i.e. adjustment threads, which are helical and extend from the bottom end to the top end of the sleeve 12. A thread groove which spirally rises is formed between any two adjacent threads. The first mounting seat 11 can be provided with a boss. The sleeve 12 is sleeved on the boss and slidingly abuts against the first mounting seat 11. The active space 1a is formed between the sleeve 12 and the boss. A bearing which is sleeved on the boss and is used for improving the smoothness of the rotation of the sleeve 12 can be arranged in the active space 1a. The first mounting seat 11 and the boss are provided with vertical through holes. The column 13 is arranged in the through holes of the first mounting seat 11 and the boss. The adjustment protrusion 131 on the column 13 is located above the boss and is slidingly limited in the thread groove of the adjustment thread. When the sleeve 12 is rotated, the adjustment thread on the sleeve 12 drives the adjustment protrusion 131 to move up and down, so as to realize the lifting of the column 13 connected with the adjustment protrusion 131. The lifting movement of the column 13 is further converted into the lifting of the first horizontal adjustment module 2 and the elevation adjustment module 3 connected with the column 13. In this way, the lifting adjustment of the acoustic module mounted on the elevation adjustment module 3 is realized. The structure of the first mounting seat 11 is only illustrative and is not the only limitation on the structure of the first mounting seat 11.

[0047] The first horizontal adjustment module 2 can be a two-dimensional moving module, which is used to realize the movement adjustment of the elevation angle adjustment module 3 and the acoustic module to be tested in the horizontal direction, such as the X-axis and Y-axis directions in a two-dimensional rectangular coordinate system. For example, the first horizontal adjustment module 2 can include two upper and lower stacked sliding tables, each of which can include a first sliding seat and a second sliding seat matched through a rail groove. Each sliding table realizes the adjustment of the elevation angle adjustment module 3 and the acoustic module to be tested in a linear direction through the sliding cooperation of the first sliding seat and the second sliding seat. The two sliding tables cooperate to realize the adjustment of the elevation angle adjustment module 3 and the acoustic module to be tested in two linear directions that are at an included angle, which can be the X-axis and Y-axis directions in the two-dimensional rectangular coordinate system.

[0048] The elevation angle adjustment module 3 is used to realize the pitch angle adjustment of the acoustic module to be tested. For example, the elevation angle adjustment module 3 can include a base, a clamp rotatingly arranged on the base and used to position the acoustic module to be tested, a screw nut fixed to the base, and a screw rod penetrating the screw nut. The screw rod is in abutment with one end of the clamp. Rotating the screw rod makes the screw rod rotate relative to the screw nut, and the screw rod pushes the clamp to rotate relative to the base, thereby changing the inclination angle of the clamp and realizing the pitch angle adjustment of the acoustic module fixed by the clamp.

[0049] In this embodiment, the elevation angle adjustment module 3 is arranged in the test device to realize the installation and fixation of the acoustic module. The pitch angle of the acoustic module is adjusted by the elevation angle adjustment module 3. The horizontal position of the fixed acoustic module is adjusted by the first horizontal adjustment module 2 that can drive the elevation angle adjustment module 3 to move horizontally. The acoustic module is adjusted in the vertical position by the lifting adjustment module 1 that can drive the first horizontal adjustment module 2 to move up and down. Thus, the test device can realize the adjustment of the acoustic module to be tested in the horizontal position, the vertical position, and the pitch angle. The posture of the acoustic device can be adjusted according to the test needs of the actual test environment. The posture of the acoustic module in the actual assembly in the electronic device and the actual use can be simulated. The test data of the acoustic module closer to the actual use scenario can be obtained. The accuracy and reliability of the test of the acoustic module are improved. In addition, the lifting adjustment module 1 realizes the lifting adjustment of the acoustic module by rotating the screw sleeve 12 and driving the adjustment convex portion 131 and the column 13 to lift through the internal threads of the screw sleeve 12. The lifting adjustment module 1 no longer needs to be configured with a corresponding air-driven or electrically-driven device to drive. The number of components of the test device is reduced. The volume of the test device is compressed. The test module can be transplanted and used in various test scenarios with different sizes of space, such as laboratories and production lines. The applicability of the test device is improved.

[0050] In an embodiment of the present application, the test device is combined with Figure 1 and Figure 2As shown, the first mounting base 11 includes a base 111 and a guide column 112, the guide column 112 is arranged on the base 111, the sleeve 12 is sleeved on the guide column 112 and forms a movable space 1a with the outer wall of the guide column 112; the guide column 112 is internally provided with a guide channel 112a, the stand column 13 is slidingly limited in the guide channel 112a; the outer wall of the guide column 112 is provided with a guide groove 112b vertically extending and communicating with the guide channel 112a, and the adjusting convex part 131 is slidingly limited in the guide groove 112b.

[0051] In the embodiment, the base 111 can be a disc-shaped or block-shaped structure, the guide column 112 is protruded on the side of the base 111 facing the first horizontal adjustment module 2, the guide column 112 can be vertically extended, the guide channel 112a vertically extending is formed in the guide column 112, and the guide groove 112b vertically extending and communicating with the guide channel 112a is formed on the outer wall of the guide column 112. The stand column 13 is arranged in the guide channel 112a and can be gap-fitted with the inner wall of the guide channel 112a, so that the stand column 13 can be lifted and moved along the guide groove 211b. The adjusting convex part 131 on the stand column 13 can be integrally formed with the stand column 13 or connected in a detachable connection mode such as insertion or clamping, and the adjusting convex part 131 is slidingly limited in the guide groove 112b and the threaded groove on the adjusting screw. When the sleeve 12 is rotated, the adjusting convex part 131 is lifted and moved along the guide groove 112b under the driving of the adjusting screw on the inner peripheral wall of the sleeve 12, and the adjusting convex part 131 further drives the stand column 13 to be lifted and moved, so as to finally realize the lifting adjustment of the acoustic module to be tested. In the embodiment, the guide groove 112b can guide the lifting movement of the adjusting convex part 2122, so that the adjusting convex part 131 will not rotate together with the sleeve 12 when moving along the adjusting screw under the limitation of the guide groove 112b, the rotation of the sleeve 12 can be finally converted into the lifting movement of the stand column 13, the shorter rotation stroke of the sleeve 12 can be converted into the longer lifting stroke of the acoustic module to be tested, the sensitivity of the lifting adjustment of the acoustic module to be tested is improved, and the debugging efficiency of the test module in the acoustic module test link is improved.

[0052] In an embodiment of the present application, in combination with Figure 1 and Figure 2 As shown, the first mounting base 11 further includes a limiting piece 113, the limiting piece 113 is arranged at one end of the guide column 112 away from the base 111, and the sleeve 12 is limited between the base 111 and the limiting piece 113.

[0053] In the embodiment, the screw sleeve 12 is located between the limiting member 113 and the base 111, the limiting member 113 cooperates with the base 111 to limit the screw sleeve 12, when the screw sleeve 12 is rotated, the screw sleeve 12 will not move up and down under the stop limiting of the base 111 and the limiting member 113, at this time, only the rotation of the screw sleeve 12 will be converted into the lifting movement of the stand column 13 and the acoustic module to be tested, so that the uncontrollable lifting movement of the stand column 13 and the acoustic module to be tested can be avoided, and the accuracy of the lifting adjustment of the acoustic module to be tested by the lifting adjustment module 1 can be improved.

[0054] In an embodiment of the present application, in combination with Figure 1 and Figure 2 As shown in the drawings, the limiting member 113 is sleeved on the outer peripheral wall of the guide column 112, the limiting member 113 is provided with a first through hole 113a, the guide column 112 is provided with a second through hole 112c which is communicated with the first through hole 113a and the guide channel 112a, at least one of the first through hole 113a and the second through hole 112c is provided with an internal thread; the lifting adjustment module 1 further comprises a first locking member, the first locking member is provided with an external thread, the first locking member is in abutment with the stand column 13 by penetrating through the first through hole 113a and the second through hole 112c, and the first locking member is fixed with the limiting member 113, the guide column 112 and the stand column 13 by cooperation of the external thread and the internal thread.

[0055] In the embodiment, after the stand column 13 and the acoustic module to be tested are lifted and moved to the target position by rotating the screw sleeve 12, the first locking member is penetrated through the first through hole 113a and the second through hole 112c, and the first locking member is tightened, so that the first locking member is close to the stand column 13 in the guide channel 112a until the first locking member is in abutment with the stand column 13 in the guide channel 112a, at this time, the stand column 13 is fixed with the limiting member 113 and the guide column 112 under the locking of the first locking member, and the height position of the acoustic module to be tested above the stand column 13 is also fixed, so that the situation that the height position of the acoustic module to be tested changes after being debugged to the target height position can be avoided, and the height position of the acoustic module to be tested in the test link is always the same, so as to ensure the test accuracy of the acoustic module to be tested. The first locking member can be a bolt, a screw or a screw.

[0056] In an embodiment of the present application, in combination with Figure 1 and Figure 3As shown, the first horizontal adjustment module 2 includes two displacement adjustment mechanisms 21, which are stacked on the stand 13 and used to realize the position adjustment of the elevation adjustment module 3 in two perpendicular directions; the displacement adjustment mechanism 21 includes a second mounting seat 211, a sliding block 212 and an adjustment rod 213, and the sliding block 212 is in sliding connection with the second mounting seat 211; the sliding block 212 and the second mounting seat 211 enclose a cavity, and the sliding block 212 is provided with a rack 2121 located in the cavity; the adjustment rod 213 is rotatably arranged in the second mounting seat 211, and the outer circumferential wall of the adjustment rod 213 is provided with a gear 2131, and the gear 2131 and part of the structure of the adjustment rod 213 are located in the cavity, and the gear 2131 is in engagement with the rack 2121; the adjustment rod 213 can drive the sliding block 212 to linearly move relative to the second mounting seat 211 through the cooperation of the gear 2131 and the rack 2121 when rotating.

[0057] In the embodiment, the two displacement adjustment mechanisms 21 are the same in structure, but the installation angles of the two displacement adjustment mechanisms 21 are different, for example, Figure 1 As shown, the two displacement adjustment mechanisms 21 are stacked in a perpendicular state, the second mounting seat 211 of the lower displacement adjustment mechanism 21 is connected with the stand 13, the second mounting seat 211 of the upper displacement adjustment mechanism 21 is connected with the sliding block 212 of the lower displacement adjustment mechanism 21, and the sliding block 212 of the upper displacement adjustment mechanism 21 is connected with the elevation adjustment module 3. The sliding block 212 of the displacement adjustment mechanism 21 can be in sliding connection with the second mounting seat 211 through rail slot cooperation or the like, and the rack 2121 can be connected with the sliding block 212 through welding, screwing or the like.

[0058] In use, the displacement adjustment mechanism 21 can realize the linear movement of the sliding block 212 by rotating the adjustment rod 213 to drive the gear 2131 on the adjustment rod 213 to linearly move the rack 2121; by adjusting the installation angles of the two displacement adjustment mechanisms 21, the moving directions of the sliding blocks 212 on the two displacement adjustment mechanisms 21 can be perpendicular, so that the combination of the two displacement adjustment mechanisms 21 can realize the position adjustment of the elevation adjustment module 3 and the acoustic module on the elevation adjustment module 3 in two horizontal and perpendicular directions. The manual driving mode of rotating the adjustment rod 213 can avoid the problems of increasing the size and cost of the test device when the test device needs to be configured with air-driven or electric-driven devices for driving, which is conducive to compressing the size and cost of the test device and facilitating the transplantation of the test device to different environments such as laboratories and production lines. In addition, the step adjustment mode of the engagement of the gear 2131 and the rack 2121 is also conducive to improving the accuracy of the displacement adjustment of the displacement adjustment mechanism 21, thereby improving the horizontal displacement control precision of the acoustic module to be tested in the test link of the test device and realizing the improvement of the final test accuracy.

[0059] In an embodiment of the present application, in combination with Figure 1 and Figure 3 As shown in the above, the slider 212 is provided with a protrusion 2122 extending into the cavity, and the protrusion 2122 is provided with a rack 2121 on the side opposite to the slider 212; the second mounting base 211 is provided with a third through hole 211a communicating with the cavity, and the third through hole 211a is provided with an internal thread; the displacement adjusting mechanism 21 further comprises a second locking member provided with an external thread, and the second locking member is in abutment with the protrusion 2122 by penetrating through the third through hole 211a, and the second locking member is fixed with the protrusion 2122 and the second mounting base 211 by cooperation of the external thread and the internal thread.

[0060] In the present embodiment, when the slider 212 is adjusted to the target position by rotating the adjusting rod 213, the second locking member is penetrated through the third through hole 211a and tightened, so that the second locking member is moved close to the protrusion 2122 until the second locking member is in abutment with the surface of the protrusion 2122, at which time the second locking member locks and fixes the protrusion 2122 and the second mounting base 211, so that the change of the horizontal position of the acoustic module to be tested in the testing link can be avoided, and the horizontal position of the acoustic module to be tested in the testing link is always consistent, so as to ensure the testing accuracy of the acoustic module to be tested. As shown in the above, Figure 3 the second mounting base 211 can be provided with two third through holes 211a symmetrically arranged, and each third through hole 211a is screwed with a second locking member, so as to lock the protrusion 2122 by the two second locking members, so that the protrusion 2122 is balanced under the abutting action of the two second locking members, and the side turning of the protrusion 2122 and the slider 212 is not prone to occur, and the reliability of the displacement adjusting mechanism 21 in use can be ensured. The second locking member can be a bolt, a screw, a screw, etc.

[0061] In an embodiment of the present application, in combination with Figure 1 and Figure 3 As shown in the above, the second mounting base 211 is provided with a through slot 211b, and the two side walls of the through slot 211b are provided with positioning grooves 211c having two side walls arranged at an angle; the slider 212 covers at least part of the slot of the through slot 211b and is in sliding abutment with the periphery of the slot of the through slot 211b; the side of the slider 212 facing the gear 2131 is provided with a dovetail part 2123, and the two ends of the dovetail part 2123 are respectively slidingly limited in the two positioning grooves 211c, and the rack 2121 is arranged on the dovetail part 2123.

[0062] In this embodiment, the two positioning grooves 211c cooperate to form a dovetail groove structure. Through the limiting cooperation between the dovetail groove structure and the dovetail part 2123, the slider 212 can avoid vertical and lateral swaying relative to the second mounting base 211. This can improve the stability and reliability of the slider 212 when sliding on the second mounting base 211, which is beneficial to improving the accuracy and reliability of the horizontal position adjustment of the acoustic module under test.

[0063] In one embodiment of the present invention, combined with Figure 1 and Figure 4 As shown, the aforementioned elevation adjustment module 3 includes a third mounting base 31, a mounting bracket 32, and a push rod 33. The third mounting base 31 is located at the output end of the first horizontal adjustment module 2, and the third mounting base 31 has two spaced-apart mounting portions 311. The mounting bracket 32 ​​is located between the two mounting portions 311 and is rotatably connected to the two mounting portions 311. The mounting bracket 32 ​​is used to install and fix the acoustic module. The push rod 33 is screwed into and passes through the third mounting base 31. The push rod 33 abuts against a portion of the structure of the mounting bracket 32. When the push rod 33 rotates, it can drive the mounting bracket 32 ​​to rotate relative to the two mounting portions 311.

[0064] In this embodiment, the mounting bracket 32 ​​is rotatably connected to two mounting parts 311 via a hole-shaft fit or other means. A space is formed between the two mounting parts 311 for the mounting bracket 32 ​​to rotate. By turning the push rod 33, the push rod 33 moves relative to the third mounting base 31, and the push rod 33 can drive the mounting bracket 32, which abuts against it, to rotate within the aforementioned space. This allows for adjustment of the pitch angle of the acoustic module under test fixed on the mounting bracket 32. The mounting bracket 32 ​​may have a positioning hole for positioning the acoustic module under test. A positioning screw is screwed into and passes through the side wall of the positioning hole. By turning the positioning screw, the positioning screw can lock and fix the acoustic module in the positioning hole onto the mounting bracket 32, thus achieving reliable fixation of the acoustic module under test and ensuring the accuracy of the acoustic module testing during the testing process.

[0065] like Figure 4 As shown, the third mounting base 31 may be provided with two symmetrically arranged push rods 33. The two push rods 33 respectively abut against two opposing surfaces of the mounting frame 32. By turning the two push rods 33, the two push rods 33 respectively hold the two surfaces of the mounting frame 32. This not only allows for the adjustment of the tilt angle of the mounting frame 32, but also ensures that the mounting frame 32 is balanced under the action of the two push rods 33. This prevents the mounting frame 32 from overturning due to unbalanced forces when pushed unidirectionally by one push rod 33. This ensures the accuracy and reliability of the pitch angle adjustment of the mounting frame 32 and the acoustic module on the mounting frame 32.

[0066] The elevation angle adjusting module 3 in the embodiment can avoid the problem of increasing the volume and cost of the test device when the air-driven or electric-driven device is configured to drive the test device, and is conducive to compressing the volume and cost of the test device, and facilitating the transplantation of the test device to different environments such as laboratories and production lines.

[0067] In an embodiment of the present application, in combination with Figure 1 and Figure 4 As shown in the above, the third mounting seat 31 is provided with a limiting groove 31a between the two mounting parts 311; the mounting bracket 32 has an extension part 321 extending into the limiting groove 31a, and part of the structure of the push rod 33 extends into the limiting groove 31a and abuts against the extension part 321.

[0068] In the embodiment, the push rod 33 penetrates the inner wall of the limiting groove 31a and the outer wall of the third mounting seat 31, and the front and rear walls of the limiting groove 31a in which the push rod 33 is arranged limit the movement range of the extension part 321, so that the extension part 321 cannot be turned to a horizontal state, avoiding the acoustic module on the mounting bracket 32 from colliding with the third mounting seat 31, and avoiding the case that when the mounting bracket 32 is fixed in a large-angle inclined posture, the devices in the test system for collecting acoustic signals of the acoustic module cannot accurately collect the acoustic signals output by the acoustic module, thereby reducing the risk that the test device cannot accurately test the acoustic performance of the acoustic module. In addition, the left and right walls of the limiting groove 31a stop and limit the extension part 321, which can avoid the mounting bracket 32 and the acoustic module to be tested on the mounting bracket 32 from moving laterally during the test, so as to ensure the accuracy and reliability of the acoustic module test.

[0069] In an embodiment of the present application, the test device further comprises a rotating module 4 arranged on the stand 13 and connected with the first horizontal adjusting module 2, and the rotating module 4 is used to realize the horizontal rotation adjustment of the first horizontal adjusting module 2; and / or, the test device further comprises a second horizontal adjusting module 5, and the first mounting seat 11 is arranged on the output end of the second horizontal adjusting module 5, and the second horizontal adjusting module 5 is used to realize the horizontal position adjustment of the acoustic module in cooperation with the first horizontal adjusting module 2.

[0070] In the embodiment, the rotating module 4 is a precision rotating table, such as a PRS100 series precision rotating table, and the rotating module 4 integrates the coarse adjustment and fine adjustment structure of the horizontal rotation angle of the first horizontal adjusting module 2, the coarse adjustment of the horizontal rotation angle of the first horizontal adjusting module 2 can be realized by rotating the coarse adjustment rotary disc on the rotating module 4, and the fine adjustment of the horizontal rotation angle of the first horizontal adjusting module 2 can be realized by rotating the fine adjustment rotary knob on the rotating module 4, so that the accurate adjustment of the horizontal rotation angle of the acoustic module to be tested can be realized through the double feeding adjustment mode of coarse adjustment and fine adjustment, which is conducive to improving the test accuracy of the acoustic module to be tested.

[0071] The second horizontal adjustment module 5 is a precision translation stage, such as a PTS100 series model precision translation stage, and the second horizontal adjustment module 5 is integrated with a fine adjustment structure for realizing horizontal displacement of the lifting adjustment module, and fine adjustment of the horizontal position of the lifting adjustment module can be realized by rotating a rotating handle on the second horizontal adjustment module 5, so that the double feeding adjustment mode of coarse adjustment of the first horizontal adjustment module 2 and fine adjustment of the second horizontal adjustment module 5 can be combined to realize accurate adjustment of the horizontal position of the acoustic module to be tested, which is beneficial to improve the test accuracy of the acoustic module to be tested.

[0072] The elevation angle adjustment module 3, the first horizontal adjustment module 2, the lifting adjustment module 1, the rotating module 4 and the second horizontal adjustment module 5 in the embodiment can be connected in a detachable connection mode such as screw connection, pin and hole positioning connection, so that each module can be assembled or removed into the test device as needed, and each module can be individually debugged, maintained and stored, which can greatly facilitate the transplantation of the test device to different scenes such as laboratories and production lines, and improve the versatility and flexibility of the test device in use.

[0073] The above is only an optional embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields within the concept of the present application, and the contents of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A test apparatus for testing the performance of an acoustic module, characterized by, The test device comprises: The lifting adjustment module comprises a first mounting seat, a screw sleeve and a column, the screw sleeve is sleeved on the outer circumferential wall of the first mounting seat and can rotate along the circumferential direction of the first mounting seat, an active space is formed between the inner circumferential wall of the screw sleeve and the outer circumferential wall of the first mounting seat, the inner circumferential wall of the screw sleeve is provided with an adjusting thread, the column is movably arranged in the first mounting seat, the outer wall of the column is provided with an adjusting protrusion, one end of the adjusting protrusion away from the column is slidingly limited in the thread groove of the adjusting thread, and the screw sleeve can drive the adjusting protrusion to move along the adjusting thread when rotating relative to the first mounting seat, so as to realize the lifting adjustment of the column. The first horizontal adjustment module is connected with the column, the first horizontal adjustment module comprises two displacement adjustment mechanisms, the two displacement adjustment mechanisms are stacked on the column and are used for realizing the position adjustment of the elevation angle adjustment module in two perpendicular directions, the displacement adjustment mechanism comprises: A second mounting seat; A sliding block in sliding connection with the second mounting seat, the sliding block and the second mounting seat form a cavity, the sliding block is provided with a rack, and the rack is located in the cavity; and An adjusting rod in rotation through the second mounting seat, the outer circumferential wall of the adjusting rod is sleeved with a gear, the gear and part of the structure of the adjusting rod are located in the cavity, the gear is in mesh with the rack, and the adjusting rod can drive the sliding block to linearly move relative to the second mounting seat through the cooperation of the gear and the rack when rotating. And An elevation angle adjustment module arranged at the output end of the first horizontal adjustment module, the elevation angle adjustment module comprises: A third mounting seat arranged at the output end of the first horizontal adjustment module, the third mounting seat is provided with two mounting parts arranged at intervals; A mounting frame located between the two mounting parts and in rotation connection with the two mounting parts, the mounting frame is used for mounting and fixing the acoustic module; and A push rod in screw connection and through the third mounting seat, the push rod is in abutment with part of the structure of the mounting frame, and the push rod can drive the mounting frame to rotate relative to the two mounting parts when rotating. The elevation angle adjustment module is used for mounting the acoustic module and realizing the pitch angle adjustment of the acoustic module, and the first horizontal adjustment module is used for realizing the horizontal position adjustment of the elevation angle adjustment module.

2. The test device of claim 1, wherein, The first mounting seat comprises: A base; and A guide column arranged on the base, the screw sleeve is sleeved on the guide column and forms the active space with the outer wall of the guide column, the guide column is internally provided with a guide channel, the column is slidingly limited in the guide channel, and the outer wall of the guide column is provided with a guide groove vertically extending and communicating with the guide channel, and the adjusting protrusion is slidingly limited in the guide groove.

3. The test device of claim 2, wherein, The first mounting seat further comprises a limiting piece arranged at one end of the guide column away from the base, and the screw sleeve is limited between the base and the limiting piece.

4. The test device of claim 3, wherein, The limiting piece is sleeved on the outer peripheral wall of the guide column, the limiting piece is provided with a first through hole, the guide column is provided with a second through hole communicating with the first through hole and the guide channel, and at least one of the first through hole and the second through hole is provided with an internal thread; The lifting adjusting module further comprises a first locking piece provided with an external thread, the first locking piece abuts against the stand column through the first through hole and the second through hole, and the first locking piece is fixed with the limiting piece, the guide column and the stand column through cooperation of the external thread and the internal thread.

5. The test device of claim 1, wherein, The slider is provided with a protruding block extending into the cavity, and the protruding block is provided with the rack on the side away from the slider; The second mounting seat is provided with a third through hole communicating with the cavity, the third through hole is provided with an internal thread, and the displacement adjusting mechanism further comprises a second locking piece provided with an external thread, the second locking piece abuts against the protruding block through the third through hole, and the second locking piece is fixed with the protruding block and the second mounting seat through cooperation of the external thread and the internal thread.

6. The test device of claim 1, wherein, The second mounting seat is provided with a through slot, and the two side walls of the through slot are provided with positioning grooves having two side walls arranged at an angle; The slider covers at least part of the slot opening of the through slot and abuts against the periphery of the slot opening of the through slot in sliding mode, the side of the slider facing the gear is provided with a dovetail part, the two ends of the dovetail part are respectively limited in sliding mode in the two positioning grooves, and the rack is arranged on the dovetail part.

7. The test device of claim 1, wherein, The third mounting seat is provided with a limiting groove between the two mounting parts; The mounting frame has an extension extending into the limiting groove, and part of the structure of the push rod extends into the limiting groove and abuts against the extension.

8. The test device of any one of claims 1 to 4, wherein, The test device further comprises a rotating module arranged on the stand column and connected with the first horizontal adjusting module, and the rotating module is used for realizing horizontal rotation adjustment of the first horizontal adjusting module. Furthermore, the test device further comprises a second horizontal adjusting module, the first mounting seat is arranged on the output end of the second horizontal adjusting module, and the second horizontal adjusting module is used for realizing horizontal position adjustment of the acoustic module in cooperation with the first horizontal adjusting module.

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