CN214732792U - Automatic frequency response curve tester - Google Patents

Abstract

The utility model relates to a frequency response curve automatic testing machine, including the frame with locate the detection mechanism on the frame, feed mechanism and sorting unloading mechanism, detection mechanism including carousel and determine module, be equipped with the carrier on the carousel, be equipped with material loading manipulator between feed mechanism and the carousel, it is used for carrying out the unloading manipulator of sorting to accomplish the product that detects to be equipped with between sorting unloading mechanism and the carousel, determine module includes the detector, go up detect group and detect group down, it includes detection seat and last detection actuating mechanism to go up to detect the group, it is equipped with the probe to go up to detect the seat, it includes down detection seat and detects actuating mechanism down to detect the group down, be equipped with the emulation ear on detecting the seat down, detector and probe and emulation ear electric connection, and can be according to the information generation frequency response curve that detects. The utility model discloses an automatic change detects, greatly improves detection efficiency, and reduction in production cost can avoid selecting separately the confusion simultaneously, and the product loads in mixture when preventing follow-up production.

Description

Automatic frequency response curve tester

Technical Field

The utility model relates to a test equipment technical field, concretely relates to frequency response curve automatic testing machine.

Background

The earphone is a common audio frequency wearing equipment, and its inside loudspeaker are the essential element who makes sound, and there is different scope frequency response curves loudspeaker in process of production, and in order to ensure that the scope at the frequency response curve place of two loudspeakers about the earphone is unanimous, need detect the frequency response curve of loudspeaker and select separately. Traditional loudspeaker frequency response curve detection mainly relies on the manual work to utilize the detection instrument to carry out manual detection, nevertheless because artifical detection mode inefficiency consumes a large amount of labours, causes the manufacturing cost height of enterprise, and the workman is worked for a long time simultaneously and is produced tiredly, and the confusion of selecting easily leads to the product to pack thoughtlessly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide a frequency response curve automatic test machine, its mode that adopts automation detects, greatly improves detection efficiency, and reduction in production cost can avoid selecting separately the confusion simultaneously, and the product is loaded in mixture when preventing follow-up production.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a frequency response curve automatic testing machine, includes the frame and locates detection mechanism, feed mechanism and the sorting unloading mechanism on the frame, detection mechanism including the carousel with locate the peripheral determine module of carousel, be equipped with the carrier that is used for fixed product that awaits measuring on the carousel, be equipped with between feed mechanism and the carousel and be used for getting the product that awaits measuring on the feed mechanism to the material loading manipulator on the carrier, be equipped with between sorting unloading mechanism and the carousel and be used for carrying out the unloading manipulator of sorting with the product that accomplishes the detection.

As an optimal scheme, a positioning assembly for positioning a product to be detected on the carrier is arranged on the outer side of the rotary table, the positioning assembly comprises a CCD vision mechanism for detecting the angle of the product to be detected and an angle adjusting mechanism for correcting the angle of the product to be detected, and the CCD vision mechanism is arranged above the rotary table.

As a preferred scheme, feed mechanism includes that the charging tray piles up to put into the groove, the charging tray piles up to get out the groove, charging tray transport seat and control charging tray transport seat at the charging tray piles up to put into the groove and the charging tray piles up to get out reciprocating motion's between the groove reciprocating drive mechanism, be equipped with the material loading elevating system that moves about the bearing board that is used for bearing the charging tray and control bearing board on the charging tray transport seat, the charging tray piles up to put into the groove and the charging tray piles up to get out and be formed with the product and get out the material station between the groove.

As an optimal scheme, one side that the feed mechanism was kept away from to the carousel is equipped with a plurality of sorting unloading stations that set up according to different testing results, it is a plurality of finished product unloading mechanisms to select separately the unloading mechanism and be a plurality of finished product unloading mechanism locates the sorting unloading station that corresponds to a plurality of finished product unloading mechanisms are the setting side by side.

As an optimal scheme, material loading manipulator includes the material loading crossbeam, locates the material loading on the material loading crossbeam and gets the material group and control the material loading and get the material feeding actuating mechanism who gets the horizontal activity of material group, material unloading manipulator includes the unloading crossbeam, locates the unloading on the unloading crossbeam and gets the material group and control the unloading actuating mechanism who gets the material group horizontal activity, material loading is got material group and unloading and is got the material group and all have a plurality of material portions of getting that are the side by side setting, and every material portion of getting is all independently movable from top to bottom, get the material portion including getting the material and press from both sides, the material cylinder that gets the material and control the centre gripping cylinder activity from top to bottom and get material lift cylinder.

As a preferred scheme, detecting element includes the detector, goes up detection group and with last detection group complex down detection group, go up detection group and lower detection group and locate the upper and lower both sides of carousel respectively, go up detection group including last detection seat and control go up the last actuating mechanism that detects seat activity from top to bottom, go up detection seat and be equipped with the probe that corresponds with the contact on the product that awaits measuring, down detection group is including detecting down the lower actuating mechanism that detects that seat activity from top to bottom under detection seat and the control, be equipped with the emulation ear that corresponds with the product that awaits measuring on detecting down, detector and probe and emulation ear electric connection to can generate the frequency response curve according to the information that detects.

As a preferred scheme, go up and detect the group and still include the last mounting bracket that is used for installing the seat of detecting, go up to detect the seat and movable mounting from top to bottom on last mounting bracket, upward be equipped with on the mounting bracket and make and go up the thrust spring that detects the seat and have upward movement's trend all the time.

As a preferred scheme, the lower detection group further comprises a lower mounting frame used for mounting a lower detection seat, the lower mounting frame is provided with a guide rod which is vertically arranged, and the lower detection seat is movably connected with the guide rod.

As a preferred scheme, on detect and be equipped with a plurality of detection briquetting that can independently move about from top to bottom on the seat, a plurality of detection briquetting all are equipped with buffer spring with on detecting between the seat, the probe is located on detecting the briquetting, be equipped with a plurality of detection kicking blocks that can independently move about from top to bottom on detecting the seat down, a plurality of detection kicking blocks all are equipped with down buffer spring with detecting under with between the seat, artificial ear is located on detecting the kicking block.

As a preferred scheme, the detection pressing block is provided with an accommodating cavity with a downward opening, an elastic pressing rod for pressing the product downwards is arranged in the accommodating cavity, the lower end of the probe is located in the accommodating cavity, the lower end of the elastic pressing rod is lower than the lower end of the probe, and a sealing ring is arranged on the opening edge of the accommodating cavity.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, particularly, through setting up detection mechanism, feed mechanism, sorting unloading mechanism and feeding and unloading manipulator, the product that awaits measuring is got to detection mechanism by the feed manipulator and is carried out the detection of frequency response curve, in the product of different curve ranges is sorted to the sorting mechanism by the unloading manipulator after the detection is accomplished to realize automatic detection, greatly improve detection efficiency, reduction in production cost can avoid selecting separately the confusion simultaneously, product mix-loading when preventing follow-up production; the angle of the product is corrected in advance by arranging the CCD vision mechanism and the angle adjusting mechanism, so that the detection accuracy and the automation degree are improved; by arranging the plurality of independent detection pressing blocks and the detection top blocks, the probe on each detection pressing block and the simulation ear on each detection top block can move independently, and the product can be detected in place under the action of the buffer spring; the upper detection seat can be automatically lifted in a non-working state by arranging the thrust spring, so that the probe is far away from the turntable to avoid being damaged; the elastic pressing rod is arranged to press the product downwards to prevent a gap from existing between the product and the carrier, and the sealing ring is arranged to prevent external noise from interfering with detection of the product.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic view of an assembly structure according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the embodiment of the present invention with the frame removed;

FIG. 3 is a top view of FIG. 2;

fig. 4 is an assembly schematic diagram of a feeding manipulator and a discharging manipulator according to an embodiment of the present invention;

fig. 5 is a schematic view of a feeding mechanism according to an embodiment of the present invention;

fig. 6 is a side view of a feed mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic view of a detection mechanism according to an embodiment of the present invention;

FIG. 8 is a side view of the upper inspection group, the upper inspection group and the turntable assembly of an embodiment of the present invention;

fig. 9 is a schematic structural diagram of an upper detection group according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a lower detection group according to an embodiment of the present invention.

The attached drawings indicate the following:

10-a frame; 11-a machine base; 12-a sorting and blanking mechanism;

13-finished product blanking mechanism; 14-rechecking and blanking mechanism; 20-a feeding mechanism;

21-stacking the material trays into a groove; 22-tray stacking and taking-out groove; 221-elastic material blocking pieces;

23-a telescopic cylinder; 231-telescopic baffles; 24-a reciprocating drive mechanism;

241-a synchronous belt; 242-reciprocating drive motor; 25-tray 29 carrying seat;

26-a feeding lifting mechanism; 27-a support plate; 28-a product take-off station;

29-material tray; 30-a feeding manipulator; 31-a blanking manipulator;

32-a CCD vision mechanism; 33-a feeding beam; 331-a feeding driving mechanism;

34-a feeding and taking group; 35-a material taking part; 351-a material taking clamp;

352-a clamping cylinder; 353-material taking lifting cylinder; 36-a blanking cross beam;

361-a feeding driving mechanism; 37-blanking and material taking group; 38-product;

40-a detection mechanism; 41-a turntable; 42-a carrier;

43-an angle adjustment mechanism; 44-a rotary drive motor; 45-a detection component;

50-upper detection group; 51-an upper mounting frame; 52-upper detection drive mechanism;

53-upper detection seat; 54-an upper buffer spring; 55-detecting a pressing block;

56-a thrust spring; 57-probe; 58-elastic pressing rod;

59-a housing chamber; 60-lower detection group; 61-a lower mounting frame;

62-artificial ear; 63-detecting the top block; 64-a lower buffer spring;

65-lower detection seat; 66-a guide bar; 67-lower detection drive mechanism.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-10, an automatic frequency response curve testing machine comprises a frame 10, a base 11 is arranged on the frame 10, the machine base 11 is provided with a detection mechanism 40, a feeding mechanism 20 and a sorting and blanking mechanism 12, the feeding mechanism 20 and the sorting and blanking mechanism 12 are respectively arranged at the left side and the right side of the turntable 41, the detection mechanism 40 comprises a turntable 41, a detection assembly 45 arranged on the periphery of the turntable 41 and a rotary driving motor 44 for controlling the turntable 41 to rotate, the turntable 41 is provided with carriers 42 for fixing the product 38 to be tested, the carriers 42 are provided with four groups, the four groups of carriers 42 are distributed in a ring shape, each group comprises a plurality of carriers 42 arranged in rows, a feeding manipulator 30 for taking the product 38 to be tested on the feeding mechanism 20 to the carrier 42 is arranged between the feeding mechanism 20 and the turntable 41, a blanking manipulator 31 for sorting the detected products 38 is arranged between the sorting and blanking mechanism 12 and the turntable 41.

The front side of carousel 41 is equipped with the locating component with the product 38 location that awaits measuring to the carrier 42, locating component is including the angle adjustment mechanism 43 that is used for detecting the CCD vision mechanism 32 of the product 38 angle that awaits measuring and is used for correcting the product 38 angle that awaits measuring, the top of carousel 41 is located to CCD vision mechanism 32 installs on material loading manipulator 30 and can follow material loading manipulator 30 activity.

The feeding manipulator 30 comprises a feeding cross beam 33, a feeding material taking group 34 arranged on the feeding cross beam 33 and a feeding driving mechanism 331 controlling the feeding material taking group 34 to move transversely, the blanking manipulator 31 comprises a blanking cross beam 36, a blanking material taking group 37 arranged on the blanking cross beam 36 and a blanking driving mechanism 361 controlling the blanking material taking group 37 to move transversely, the feeding cross beam 33 and the blanking cross beam 36 are located on the same axis and connected integrally, the feeding material taking group 34 and the blanking material taking group 37 are provided with a plurality of material taking parts 35 arranged side by side, each material taking part 35 can move independently up and down, and each material taking part 35 comprises a material taking clamp 351, a clamping cylinder 352 controlling the material taking clamp 351 to move and a material taking lifting cylinder 353 controlling the clamping cylinder 352 to move up and down.

The feeding mechanism 20 comprises a tray stacking and placing groove 21, a tray stacking and taking groove 22, a tray 29 carrying seat 25 and a reciprocating driving mechanism 24 for controlling the tray 29 carrying seat 25 to reciprocate between the tray stacking and placing groove 21 and the tray stacking and taking groove 22, the reciprocating driving mechanism 24 comprises a synchronous belt 241 and a reciprocating driving motor 242 for driving the synchronous belt 241 to move, the tray 29 carrying seat 25 is connected with the synchronous belt 241 and can move along with the synchronous belt 241, a supporting plate 27 for supporting the tray 29 and a feeding and lifting mechanism 26 for controlling the supporting plate 27 to move up and down are arranged on the tray 29 carrying seat 25, the supporting plate 27 is arranged below the tray stacking and placing groove 21 and the tray stacking and taking groove 22, an elastic material blocking piece 221 for limiting the falling of the tray 29 is arranged in the tray stacking and taking groove 22, and when the tray 29 moves up, the elastic material blocking piece 221 is automatically retracted after being abutted against the tray 29, the material tray 29 continuously moves upwards to the upper part of the elastic material blocking part 221 to be received and extend again to block the material tray 29 from falling, so that the material tray 29 is stacked, a product taking station 28 is formed between the material tray stacking groove 21 and the material tray stacking groove 22, the two sides of the material tray stacking groove 21 are provided with a telescopic baffle 231 and a telescopic cylinder 23 for controlling the telescopic baffle 231 to move, the material tray 29 can fall one by the extension and retraction of the telescopic baffle 231, one side of the rotary disc 41, which is far away from the feeding mechanism 20, is provided with a plurality of sorting and blanking stations according to different detection results, the sorting and blanking mechanism 12 is a plurality of finished product blanking mechanisms 13, the plurality of finished product blanking mechanisms 13 are arranged at corresponding sorting and blanking stations, the plurality of finished product blanking mechanisms 13 are arranged side by side, one side of the sorting and blanking mechanism 12, which is far away from the rotary disc 41, is provided with a rechecking and blanking mechanism 14 for storing products 38 which can not be sorted after detection, this product 38 adopts the manual mode to reinspect, and the structure of well finished product unloading mechanism 13 and the structure of reinspection unloading mechanism 14 all are the same with feed mechanism 20 in the utility model, and will not be described in detail here.

The detecting component 45 includes a detecting instrument (not shown), an upper detecting group 50 and a lower detecting group 60 matched with the upper detecting group 50, the upper detecting group 50 and the lower detecting group 60 are respectively arranged at the upper side and the lower side of the turntable 41, the upper detecting group 50 includes an upper mounting frame 51, an upper detecting seat 53 which can be movably arranged on the upper mounting frame 51 up and down and an upper detecting driving mechanism 52 which controls the upper detecting seat 53 to move up and down, the upper detecting driving mechanism 52 is a cylinder, a thrust spring 56 which enables the upper detecting seat 53 to always move up is arranged on the upper mounting frame 51, a plurality of detecting press blocks 55 which can independently move up and down are arranged on the upper detecting seat 53, an upper buffer spring 54 is arranged between the plurality of detecting press blocks 55 and the upper detecting seat 53, the upper end and the lower end of the upper buffer spring 54 are respectively abutted against the upper detecting seat 53 and the detecting press blocks 55, a probe 57 corresponding to a contact point on the product 38 to be detected is arranged on the detecting press blocks 55, the lower detection group 60 comprises a lower mounting frame 61, a lower detection seat 65 which is movably arranged on the lower mounting frame 61 up and down, and a lower detection driving mechanism 67 which is movably arranged on the lower detection seat 65 up and down under the control, the lower detection driving mechanism 67 is a cylinder, the lower mounting frame 61 is provided with a guide rod 66 which is vertically arranged, the lower detection seat 65 is movably connected with the guide rod 66, a plurality of detection jacking blocks 63 which can independently move up and down are arranged on the lower detection seat 65, a lower buffer spring 64 is arranged between each detection jacking block 63 and the lower detection seat 65, the upper end and the lower end of the lower buffer spring 64 are respectively abutted against the detection jacking blocks 63 and the lower detection seat 65, the detection jacking blocks 63 are slidably connected with the lower mounting frame 61, the detection jacking blocks 63 are provided with simulation lugs 62, the carrier 42 is provided with through holes which are communicated with the upper side and the lower side thereof, the simulation lugs 62 move up and are attached to the lower ends of the through holes during operation, the detector is electrically connected with the probe 57 and the simulation lugs 62, and a frequency response curve can be generated according to the detected information.

The detection pressure block 55 is provided with a containing cavity 59 with a downward opening, an elastic pressing rod 58 used for pressing the product 38 downwards is arranged in the containing cavity 59, the lower end of the probe 57 is located in the containing cavity 59, the lower end of the elastic pressing rod 58 is lower than the lower end of the probe 57, a sealing ring (not shown) is arranged on the opening edge of the containing cavity 59, and when the detection pressure block works, the sealing ring is pressed and contacted with the upper end of the carrier 42 to play a sealing role, so that the product 38 can be prevented from being detected by external noise.

The utility model discloses a theory of operation: a worker stacks and places a tray 29 containing a product 38 to be detected into a tray stacking groove 21 of a feeding mechanism 20, an empty tray 29 is stacked and placed into the tray stacking groove 21 of a sorting and blanking mechanism 12, a telescopic cylinder 23 controls a telescopic baffle 231 to contract, the tray 29 at the lowest layer falls onto a supporting plate 27, a reciprocating driving mechanism 24 controls a tray 29 carrying seat 25 to move to a product taking station 28, a feeding manipulator 30 takes the product 38 from the product taking station 28 to a carrier 42 at one side of a turntable 41 close to an angle adjusting mechanism 43, while the feeding manipulator 30 moves, a CCD vision mechanism 32 detects a contact angle on the product 38, the angle adjusting mechanism 43 controls a clamp to drive the product 38 to rotate for a certain angle according to information detected by a CCD to complete positioning, the turntable 41 starts to rotate, an upper detection driving mechanism 52 controls an upper detection seat 53 to drive a detection pressing block 55 to move downwards, the lower end of the elastic pressing rod 58 presses the product 38, the probe 57 presses a contact, the sealing ring presses against the upper end of the carrier 42, meanwhile, the lower detection driving mechanism 67 controls the lower detection seat 65 to drive the simulation lug 62 to move upwards, the simulation lug 62 is attached to the lower end of the through hole of the carrier 42, the power is switched on, the detector detects the product 38 and generates a frequency response curve according to detection information after detection is completed, the blanking manipulator 31 classifies the product 38 into the corresponding finished product blanking mechanism 13 according to detection results, and the finished product blanking mechanism 13 stacks the material disc 29 containing the detected product 38 in the material disc stacking and taking groove 22 to complete detection operation.

To sum up, the utility model discloses a set up detection mechanism, feed mechanism, sorting unloading mechanism and loading and unloading manipulator, the product that awaits measuring is got to detection mechanism by the feed manipulator and is carried out the detection of frequency response curve, and the product of different curve ranges is sorted into the sorting mechanism by the unloading manipulator after the detection is accomplished, thereby realizes automatic detection, greatly improves detection efficiency, reduces manufacturing cost, can avoid selecting separately the confusion simultaneously, prevents the product from mixing during subsequent production and adorning; the angle of the product is corrected in advance by arranging the CCD vision mechanism and the angle adjusting mechanism, so that the detection accuracy and the automation degree are improved; by arranging the plurality of independent detection pressing blocks and the detection top blocks, the probe on each detection pressing block and the simulation ear on each detection top block can move independently, and the product can be detected in place under the action of the buffer spring; the upper detection seat can be automatically lifted in a non-working state by arranging the thrust spring, so that the probe is far away from the turntable to avoid being damaged; the elastic pressing rod is arranged to press the product downwards to prevent a gap from existing between the product and the carrier, and the sealing ring is arranged to prevent external noise from interfering with detection of the product.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a frequency response curve automatic testing machine, its characterized in that includes the frame and locates detection mechanism, feed mechanism and the sorting unloading mechanism on the frame, detection mechanism including the carousel with locate the peripheral determine module of carousel, be equipped with the carrier that is used for fixed product that awaits measuring on the carousel, be equipped with between feed mechanism and the carousel and be used for getting the product that awaits measuring on the feed mechanism to the feeding manipulator on the carrier, be equipped with between sorting unloading mechanism and the carousel and be used for carrying out the unloading manipulator of sorting with the product that accomplishes the detection.

2. The automatic frequency response curve testing machine of claim 1, wherein a positioning assembly for positioning a product to be tested on the carrier is disposed outside the turntable, the positioning assembly comprises a CCD vision mechanism for detecting an angle of the product to be tested and an angle adjusting mechanism for correcting the angle of the product to be tested, and the CCD vision mechanism is disposed above the turntable.

3. The automatic frequency response curve testing machine according to claim 1, wherein the feeding mechanism comprises a tray stacking groove, a tray stacking taking groove, a tray carrying seat and a reciprocating driving mechanism for controlling the tray carrying seat to reciprocate between the tray stacking groove and the tray stacking taking groove, the tray carrying seat is provided with a bearing plate for bearing the tray and a feeding lifting mechanism for controlling the bearing plate to move up and down, and a product taking station is formed between the tray stacking groove and the tray stacking taking groove.

4. The automatic frequency response curve testing machine according to claim 1, wherein a plurality of sorting and blanking stations are arranged on one side of the turntable away from the loading mechanism according to different detection results, the sorting and blanking mechanisms are a plurality of finished product blanking mechanisms, the plurality of finished product blanking mechanisms are arranged on the corresponding sorting and blanking stations, and the plurality of finished product blanking mechanisms are arranged side by side.

5. The automatic frequency response curve testing machine according to claim 1, wherein the feeding manipulator comprises a feeding cross beam, a feeding material taking group arranged on the feeding cross beam and a feeding driving mechanism for controlling the feeding material taking group to move transversely, the discharging manipulator comprises a discharging cross beam, a discharging material taking group arranged on the discharging cross beam and a discharging driving mechanism for controlling the discharging material taking group to move transversely, the feeding material taking group and the discharging material taking group are respectively provided with a plurality of material taking parts arranged side by side, each material taking part can move up and down independently, and each material taking part comprises a material taking clamp, a clamping cylinder for controlling the material taking clamp to move and a material taking lifting cylinder for controlling the clamping cylinder to move up and down.

6. The automatic frequency response curve testing machine according to claim 1, wherein the testing assembly comprises a testing device, an upper testing set and a lower testing set matched with the upper testing set, the upper testing set and the lower testing set are respectively arranged at the upper side and the lower side of the turntable, the upper testing set comprises an upper testing seat and an upper testing driving mechanism for controlling the upper testing seat to move up and down, the upper testing seat is provided with a probe corresponding to a contact point on a product to be tested, the lower testing set comprises a lower testing seat and a lower testing driving mechanism for controlling the lower testing seat to move up and down, the lower testing seat is provided with a simulation ear corresponding to the product to be tested, the testing device is electrically connected with the probe and the simulation ear, and can generate a frequency response curve according to the detected information.

7. The automatic frequency response curve testing machine of claim 6, wherein the upper testing set further comprises an upper mounting frame for mounting the upper testing seat, the upper testing seat is movably mounted on the upper mounting frame up and down, and a thrust spring for enabling the upper testing seat to always move upwards is arranged on the upper mounting frame.

8. The automatic frequency response curve testing machine of claim 6, wherein the lower detection group further comprises a lower mounting frame for mounting the lower detection seat, the lower mounting frame is provided with a vertically arranged guide rod, and the lower detection seat is movably connected with the guide rod.

9. The automatic frequency response curve testing machine according to claim 6, wherein a plurality of testing press blocks capable of moving up and down independently are arranged on the upper testing seat, upper buffer springs are arranged between the testing press blocks and the upper testing seat, the probes are arranged on the testing press blocks, a plurality of testing top blocks capable of moving up and down independently are arranged on the lower testing seat, lower buffer springs are arranged between the testing top blocks and the lower testing seat, and the simulation ears are arranged on the testing top blocks.

10. The automatic frequency response curve testing machine as claimed in claim 9, wherein the detecting pressing block has a receiving cavity with a downward opening, an elastic pressing rod for pressing the product downward is disposed in the receiving cavity, a lower end of the probe is disposed in the receiving cavity, a lower end of the elastic pressing rod is lower than a lower end of the probe, and an opening edge of the receiving cavity is provided with a sealing ring.

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