阅读说明：本技术 一种包装检测用振动异响测试装置及其检测方法 (Vibration abnormal sound testing device for package detection and detection method thereof ) 是由 梅礼光 熊艳慧 熊军玲 于 2021-06-21 设计创作，主要内容包括：本发明公开了一种包装检测用振动异响测试装置及其检测方法,包括底板、支撑板和隔音箱,所述底板的顶部安装有两组支撑板,所述支撑板的顶部安装有隔音箱；所述底板的顶部安装有检测结构,所述检测结构由电磁振动机、放置台、支撑柱、工作台、压力感应器、衔接块和敲击块组成,所述电磁振动机的顶部安装有放置台,所述放置台的底部安装有衔接块,所述衔接块的底部安装有敲击块。本发明在实际应用中可进行声波对比和压力对比两种方式对测试产品是否有异响进行判断,声音收集器与被测试产品之间的距离可进行间距更换,对于有异响产品可区别标记,同时试验区域位于隔音箱内部,其它动力部件位于箱体外侧,可减少杂音。(The invention discloses a vibration abnormal sound testing device for package detection and a detection method thereof, wherein the vibration abnormal sound testing device comprises a bottom plate, supporting plates and a sound insulation box, wherein the top of the bottom plate is provided with two groups of supporting plates, and the top of each supporting plate is provided with the sound insulation box; the top of bottom plate is installed and is detected the structure, it comprises electromagnetic vibration machine, place platform, support column, workstation, pressure sensors, link up the piece and strike the piece to detect the structure, the platform is installed and is placed at electromagnetic vibration machine's top, the bottom of placing the platform is installed and is linked up the piece, the bottom of linking up the piece is installed and is struck the piece. In practical application, the sound wave comparison and pressure comparison can be carried out to judge whether the tested product has abnormal sound or not, the distance between the sound collector and the tested product can be changed, the abnormal sound product can be distinguished and marked, meanwhile, the test area is positioned in the sound insulation box, other power parts are positioned on the outer side of the box body, and noise can be reduced.)

1. The utility model provides a packing detects with vibration abnormal sound testing arrangement and detection method thereof, includes bottom plate (1), backup pad (2) and sound-proof box (3), its characterized in that: two groups of supporting plates (2) are mounted at the top of the bottom plate (1), and a sound insulation box (3) is mounted at the top of each supporting plate (2);

the top of the bottom plate (1) is provided with a detection structure (4), the detection structure (4) consists of an electromagnetic vibrator (401), a placing table (402), a supporting column (403), a working table (404), a pressure sensor (405), a connecting block (406) and a knocking block (407), and the top of the electromagnetic vibrator (401) extends into the interior of the soundproof box (3), a placing table (402) is arranged at the top of the electromagnetic vibrator (401), a connecting block (406) is arranged at the bottom of the placing table (402), the bottom of the connecting block (406) is provided with a knocking block (407), the top of the electromagnetic vibrator (401) is provided with a pressure sensor (405), and the pressure sensor (405) is positioned below the knocking block (407), a plurality of groups of supporting columns (403) are installed at the top of the placing table (402), and the workbench (404) is installed at the top of the supporting columns (403).

2. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: detect structure (4) and be located the space that two sets of backup pads (2) enclose inside, and the top that detects structure (4) extends into the inside of sound-proof box (3).

3. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: electronic telescopic cylinder (6) are installed to the roof of sound-proof box (3), connecting plate (601) are installed to the bottom of electronic telescopic cylinder (6), two sets of connecting rod (602) are all installed to the both sides outer wall of connecting plate (601), gomphosis board (603) are installed to one side that connecting rod (602) are close to connecting plate (601), and gomphosis board (603) are located the below of connecting plate (601), the top of gomphosis board (603) is provided with gomphosis groove (604), the top of gomphosis board (603) is provided with the slot hole, apart from inductor (605) is installed at the top of slot hole, the inside of slot hole is run through to the bottom of apart from inductor (605), sound collector (606) are installed at the top of gomphosis board (603), and the inside that the bottom of sound collector (606) extended into gomphosis groove (604), wire (607) are installed to the top of sound collector (606).

4. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: open and close door (301) are installed in the front of sound-proof box (3), and test product (302) have all been placed at the diapire of sound-proof box (3) and the top of workstation (404), and mechanical fixture (303) are installed to the back wall of sound-proof box (3).

5. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: electronic shrink pole (7) are installed to the roof of sound-proof box (3), and electronic shrink pole (7) are located one side of electronic expansion cylinder (6), and panel (701) are installed to the bottom of electronic shrink pole (7), and the top of panel (701) is provided with logical groove (702), leads to the place ahead that groove (702) are located electronic shrink pole (7), and mark pen (703) are installed at the top of leading to groove (702), and the inside of leading to groove (702) is run through to the bottom of mark pen (703).

6. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: the top of the bottom plate (1) is provided with a comprehensive box (8), the comprehensive box (8) is positioned at one side of the sound insulation box (3), the top of the bottom plate (1) is provided with a signal amplifier (801), and the signal amplifier (801) is positioned in an enclosed space formed by a sunken part at the bottom of the comprehensive box (8), a notch (802) is arranged on the outer wall of one side of the comprehensive box (8) far away from the sound insulation box (3), a plurality of groups of extrusion springs (803) are uniformly arranged on the bottom wall of the notch (802), a controller (804) is arranged at the top of the extrusion springs (803), and the controller (804) is positioned in the space of the notch (802), the processing system (805) is installed at the top of the comprehensive box (8), the front of the comprehensive box (8) is provided with a movable groove, the front of the movable groove is provided with a pull plate (806), the back of the pull plate (806) extends into the movable groove, and the front and the back of the comprehensive box (8) are both provided with a plurality of groups of through holes.

7. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: four groups of threaded rods (102) are uniformly installed at the top of the bottom plate (1), the bottoms of the four groups of threaded rods (102) penetrate through the inside of the bottom plate (1), a disc (103) is installed at the bottom of the threaded rod (102), a plurality of groups of pulleys (101) are uniformly installed at the bottom of the bottom plate (1), and the pulleys (101) are located inside a space surrounded by the four groups of threaded rods (102).

8. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: and a heat radiation fan (201) is arranged on the outer wall of one side of the supporting plate (2) close to the electromagnetic vibrator (401).

9. The vibration abnormal sound testing device and the testing method thereof for the package testing according to claim 1, wherein: two sets of fixed plates (5) are installed at the top of workstation (404), and two sets of fixed plates (5) are located the both sides of one of them set of test product (302) respectively, and fixed plate (5) are close to one side outer wall of test product (302) and install electric putter (501), and electric putter (501) are close to one end of test product (302) and are installed and support clamp plate (502), support clamp plate (502) and keep away from one side outer wall of electric putter (501) and install the rubber slab.

10. A vibration abnormal noise test apparatus for a package inspection and a method for testing the same according to any one of claims 1 to 9, the apparatus operating steps of which are as follows:

s1, placing a plurality of groups of test products (302) on one side, far away from an electric contraction rod (7), in a sound insulation box (3), placing one group of test products (302) on the top of a workbench (404), starting an electric push rod (501) which extends towards the direction close to the test products (302) to change the length of the electric push rod, then driving a pressing plate (502) to move towards the direction of the test products (302) and be attached to the test products, realizing the clamping of the test products (302) and fixing the test products on the table top of the workbench (404);

s2, starting the electric telescopic cylinder (6), extending downwards to change the length of the electric telescopic cylinder, adjusting the distance between the sound collector (606) and a test product (302) placed on the workbench (404) from far to near, monitoring the distance between the electric telescopic cylinder (6) and the test product (302) below through a distance sensor (605), stopping the operation of the electric telescopic cylinder (6) when the distance reaches a set value, conveniently adjusting the distance between the sound collector (606) and the test products (302) with different heights, controlling the distance within a range convenient for detecting abnormal sound inside the test product (302), and reserving a certain space for driving parts above the electric telescopic cylinder to fluctuate up and down when the electromagnetic vibrator (401) works;

s3, starting the electromagnetic vibrator (401), the signal amplifier (801), the controller (804) and the processing system (805), correspondingly inputting data to be tested, applying pulsating voltage obtained by performing half-wave rectification on alternating current to a coil after the electromagnetic vibrator (401) is powered on, enabling the movable iron core to vibrate by using the electromagnetic force of the coil, transmitting the vibration force to a placing table (402) arranged on the top of the movable iron core and all parts on the top of the movable iron core, and synchronously vibrating a tested product (302) and a knocking block (407);

s4, starting a sound collector (606) and a pressure sensor (405), after the electromagnetic vibrator (401) is started, the sound collector (606) is used for collecting sound generated inside the soundproof box (3) and transmitting sound data to a signal amplifier (801) and a controller (804) which are electrically connected with the sound collector, the signal amplifier (801) can amplify audio signals collected by the sound collector (606) to increase the collected audio signals and increase the fluctuation strength of original signals, so that the audio fluctuation in the soundproof box (3) can be compared with audio fluctuation in a processing system (805) more intuitively when a test product (302) is not placed, the audio fluctuation is compared, meanwhile, when the electromagnetic vibrator (401) vibrates, components above the electromagnetic vibrator can be driven to vibrate at the same frequency, the tested product (302) is set to have no abnormal sound, a placing table (402) arranged on the top of the electromagnetic vibrator (401) can fluctuate up and down, then the force applied by the knocking block (407) arranged at the bottom of the pressure sensor (405) is 30 newtons, the upper and lower tolerance is 1 newton, when the tested product (302) has abnormal sound, the force applied by the knocking block (407) on the pressure sensor (405) is set to be 30 newtons plus the force generated by the abnormal sound of the tested product (302), the value of the force is larger than 31 newtons, the pressure sensor (405) is in wireless signal connection with the processing system (805), the data information can be recorded in the processing system (805), the force detected by the processing system (805) is compared with the original set value, and whether the tested product has abnormal sound or not can be judged;

s5, the mechanical clamp (303) is electrically connected with the processing system (805), after each group of products are detected, the test products (302) with abnormal sound can be placed below the electric contraction rod (7), the test products (302) without abnormal sound are placed in front of the workbench (404) in the sound insulation box (3), then the two types of test products (302) are distinguished, and when each group of test products (302) with abnormal sound is placed, the electric contraction rod (7) extends downwards to drive the marking pen (703) to move downwards until the marking pen marks the surface of the test product (302) below the marking pen for distinguishing the products, and after each group of test products (302) is tested, the undetected test products (302) placed beside the marking pen are placed above the workbench (404).

Technical Field

The invention relates to the technical field of vibration abnormal sound testing devices, in particular to a vibration abnormal sound testing device for package detection and a detection method thereof.

Background

In practical application, most equipment is subjected to state detection and fault diagnosis in a vibration mode, the precision of vibration detection equipment is required to be completed through calibration equipment, and in the detection process, noise isolation needs to be performed on a detection area, so that misjudgment on the detection result is avoided.

The existing device has the defects that:

1. the comparison document CN109655221A discloses a vibration abnormal sound testing method, which comprises the steps of setting the whole system, testing the background noise of the system, testing the abnormal sound data of a loaded sample, and weakening the background noise to obtain the vibration abnormal sound data of the sample. The invention designs a vibration abnormal sound testing method which can control background noise, has low noise of self vibration equipment and wide application range, utilizes a sound analysis processing system and can obtain a test result of vibration abnormal sound through calculation and analysis processing. However, in practical application, the device only adopts a single sound wave comparison mode to detect whether the detected product has the noise or not, if the detection mode fails, the experimental equipment for detection cannot continue to detect, and the detection mode is influenced by the noise, and the detection result of the single detection mode has no contrast;

2. the comparison document CN205898288U discloses an abnormal sound detection device, which comprises a closed detection chamber, wherein a fixed base for fixing an automobile air conditioner is arranged in the closed detection chamber, a fixed support for fixing a workpiece to be detected is arranged on the fixed base, and an abnormal sound detection mechanism for detecting the abnormal sound of the workpiece to be detected is arranged on the fixed base; abnormal sound detection mechanism includes fixed mounting and is in abnormal sound detection seat on the unable adjustment base, the installation is equipped with the abnormal sound sensor that is used for gathering abnormal sound on the abnormal sound detection seat, just it is in still to be equipped with the cover on the abnormal sound detection seat the outer sound-proof housing of abnormal sound sensor. The abnormal sound detection device of the utility model can isolate the influence of the external environment on the detection result by arranging the closed detection chamber, thereby improving the detection accuracy; through setting up abnormal sound detection mechanism, utilize abnormal sound sensor to gather the abnormal sound data that produce in the course of the work of work piece that awaits measuring, can gather the abnormal sound. However, in practical application, the distance between the abnormal sound sensor and a tested product cannot be adjusted, the tested product has not only one height size, the abnormal sound is influenced by the distance between the abnormal sound sensor and the product, and the collection of abnormal sound data in a test is influenced by too long distance;

3. the reference CN111811796A discloses a method for detecting abnormal sound of a workpiece for an unmanned mine car, which comprises the following steps: 1) jacking up a workpiece to be inspected, which is placed on the workpiece plate, by a jacking mechanism of the workpiece abnormal sound detection device; 2) after the workpiece plate is matched with the limiting unit and the rotating rod is matched with the rotor of the workpiece to be inspected, the clamping unit of the clamping mechanism clamps the PCB structure of the workpiece to be inspected; 3) electrically connecting a conductive unit of the workpiece abnormal sound detection device with a workpiece to be inspected so as to electrify the workpiece to be inspected; 4) and starting the driving motor so that the rotor of the workpiece to be inspected can rotate when the driving shaft of the driving motor drives the rotating rod to rotate. The detection process of the workpiece abnormal sound detection method is carried out after the rotor is installed on the workpiece to be detected, the detection is automatically completed, and the detection efficiency is high. "but once can only detect a set of work piece in this device, therefore the staff need once take, and actual operation is comparatively loaded down with trivial details, and does not have the mark structure in the device, after the test, if the staff does not in time manually distinguish, if later stage if mix together with other products, then this experiment is invalid.

Disclosure of Invention

The present invention is directed to a vibration abnormal sound testing apparatus for package inspection and a method for testing the same, so as to solve the above-mentioned problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a vibration abnormal sound testing device for package detection and a detection method thereof comprise a bottom plate, support plates and a sound insulation box, wherein the top of the bottom plate is provided with two groups of support plates, and the top of each support plate is provided with the sound insulation box;

the top of bottom plate is installed and is detected the structure, detect the structure by electromagnetic vibration machine, place platform, support column, workstation, pressure sensors, link up the piece and strike the block group and constitute, and the top of electromagnetic vibration machine extends the inside that gets into the sound-proof box, the top of electromagnetic vibration machine is installed and is placed the platform, the bottom of placing the platform is installed and is linked up the piece, the bottom of linking up the piece is installed and is strikeed the piece, pressure sensors is installed at the top of electromagnetic vibration machine, and pressure sensors is located the below of strikeing the piece, the top of placing the platform is installed the multiunit support column, the workstation is installed at the top of support column.

Preferably, the detection structure is located inside a space enclosed by the two sets of support plates, and the top of the detection structure extends into the inside of the soundproof box.

Preferably, an electric telescopic cylinder is installed to the roof of soundproof box, the connecting plate is installed to the bottom of electric telescopic cylinder, two sets of connecting rods are all installed to the both sides outer wall of connecting plate, the connecting rod is close to one side of connecting plate and installs the gomphosis board, and the gomphosis board is located the below of connecting plate, the top of gomphosis board is provided with the gomphosis groove, the top of gomphosis board is provided with the slot hole, the distance inductor is installed at the top of slot hole, the inside in slot hole is run through apart from the bottom of inductor, sound collector is installed at the top of gomphosis board, and sound collector's bottom extends the inside that gets into the gomphosis groove, the wire is installed at sound collector's top.

Preferably, the door that opens and shuts is installed in the front of sound-proof box, and the test product has all been placed at the diapire of sound-proof box and the top of workstation, and mechanical fixture is installed to the back wall of sound-proof box.

Preferably, electronic shrink pole is installed to the roof of sound-proof box, and electronic shrink pole is located one side of electronic expansion cylinder, and the panel is installed to the bottom of electronic shrink pole, and the top of panel is provided with logical groove, leads to the place ahead that the groove is located electronic shrink pole, and the marker pen is installed at the top that leads to the groove, and the inside that leads to the groove is run through to the bottom of marker pen.

Preferably, the top of bottom plate is installed and is synthesized the case, synthesize the case and be located one side of sound-proof box, signal amplifier is installed at the top of bottom plate, and signal amplifier is located inside the enclosure space that synthesizes bottom of the case portion recess and form, one side outer wall that synthesizes the case and keep away from the sound-proof box is provided with the notch, multiunit extrusion spring is evenly installed to the diapire of notch, the controller is installed at extrusion spring's top, and the controller is located inside the space of notch, processing system is installed at the top of synthesizing the case, synthesize the front of case and be provided with the movable slot, the pull board is installed in the front of movable slot, the back of pull board extends into the inside of movable slot, synthesize the front and the back of case and all be provided with multiunit through-hole.

Preferably, four groups of threaded rods are uniformly installed at the top of the bottom plate, the bottoms of the four groups of threaded rods penetrate through the inside of the bottom plate, a disc is installed at the bottom of the threaded rod, a plurality of groups of pulleys are uniformly installed at the bottom of the bottom plate, and the pulleys are located inside a space surrounded by the four groups of threaded rods.

Preferably, a heat radiation fan is installed on the outer wall of one side of the supporting plate, which is close to the electromagnetic vibration machine.

Preferably, two sets of fixed plates are installed at the top of workstation, and two sets of fixed plates are located the both sides of one of them set of test product respectively, and the fixed plate is close to one side outer wall of test product and installs electric putter, and electric putter is close to the one end of test product and installs the clamp plate, supports the clamp plate and keeps away from one side outer wall of electric putter and installs the rubber slab.

Preferably, the working steps of the device are as follows:

s1, placing a plurality of groups of test products on one side, far away from an electric contraction rod, in a sound insulation box, placing one group of test products on the top of a workbench, starting an electric push rod, extending towards the direction close to the test products to change the length of the electric push rod, then driving a pressing plate to move towards the direction of the test products and attach the pressing plate to the test products, realizing clamping of the test products, and fixing the pressing plate on the table top of the workbench;

s2, starting the electric telescopic cylinder, extending downwards to change the length of the electric telescopic cylinder, adjusting the distance between the sound collector and a test product placed on the workbench from far to near, monitoring the distance between the sound collector and the test product below through a distance sensor, stopping the operation of the electric telescopic cylinder when the distance reaches a set value, further conveniently adjusting the distance between the sound collector and the test products with different heights, controlling the distance within a range convenient for detecting the abnormal sound in the test product, and reserving a certain space for driving the components above the electric telescopic cylinder to fluctuate up and down when the electromagnetic vibrator works;

s3, starting the electromagnetic vibrator, the signal amplifier, the controller and the processing system, correspondingly inputting data to be tested, applying pulsating voltage obtained by performing half-wave rectification on alternating current to a coil after the electromagnetic vibrator is powered on, vibrating the movable iron core by utilizing the electromagnetic force of the coil, transmitting the vibrating force to a placing table arranged on the top of the movable iron core and all parts on the top of the movable iron core, and synchronously vibrating a tested product and a knocking block;

s4, starting a sound collector and a pressure sensor, wherein after the electromagnetic vibrator is started, the sound collector is used for collecting sound generated in the sound insulation box and transmitting sound data to the inside of a signal amplifier and a controller which are electrically connected with the sound collector, the signal amplifier can amplify audio signals collected by the sound collector, the collected audio signals are increased, the fluctuation intensity of original signals is increased, the audio fluctuation in the sound insulation box is conveniently and visually compared with that of a tested product which is recorded in a processing system and is not placed, meanwhile, when the electromagnetic vibrator vibrates, the parts above the sound insulation box can be driven to vibrate at the same frequency, the tested product is set to have no abnormal sound, a placing table arranged at the top of the electromagnetic vibrator can fluctuate up and down, then a knocking block arranged at the bottom of the electromagnetic vibrator applies force to the pressure sensor, the force is 30 newtons, and the upper and lower tolerance is 1 newton, setting the force applied by the pressure sensor from the knocking block when the tested product has abnormal sound to be 30 cattle plus the force generated by the abnormal sound of the tested product, wherein the value of the force is larger than 31 cattle, the pressure sensor is in wireless signal connection with the processing system, the data information can be recorded in the processing system, the detected force is compared with the original set value through the processing system, and whether the tested product has abnormal sound or not can be judged;

s5. electric connection between mechanical fixture and the processing system, it can place the test product that has the abnormal sound in the below of electronic shrink rod after every group product detects, the test product that does not have the abnormal sound places the place ahead at the incasement portion workstation that gives sound insulation, then distinguish the test product of two kinds of types, when every placing a set of test product that has the abnormal sound simultaneously, electronic shrink rod all downwardly extending, in order to drive marker pen downstream, make the mark until its test product surface in the below, be used for distinguishing the product, and can be after each group test product test, place the test product that does not detect on one side in the top of workstation.

Compared with the prior art, the invention has the beneficial effects that:

1. when the invention is used, the sound collector and the pressure sensor are started, after the electromagnetic vibrator is started, the sound collector is used for collecting sound generated in the sound insulation box and transmitting sound data to the interior of the signal amplifier and the controller which are electrically connected with the sound collector, the signal amplifier can amplify the audio signal collected by the sound collector, the collected audio signal is increased, the fluctuation intensity of the original signal is increased, the comparison with the audio fluctuation in the sound insulation box is more intuitive when a tested product which is recorded in a processing system and is not placed is facilitated, meanwhile, when the electromagnetic vibrator vibrates, the components above the electromagnetic vibrator can be driven to vibrate at the same frequency, the tested product is set to have no abnormal sound, the placing table arranged at the top of the electromagnetic vibrator can fluctuate up and down, and then the force applied to the pressure sensor by the knocking block arranged at the bottom of the electromagnetic vibrator is 30 cattle, the upper and lower tolerance is 1 cattle, when the detected product has abnormal sound, the force applied by the pressure sensor from the knocking block is set to be 30 cattle plus the force generated by the abnormal sound of the detected product, the value of the force is larger than 31 cattle, the pressure sensor is in wireless signal connection with the processing system, the data information can be recorded in the processing system, the force detected by the processing system is compared with the original set value, at the moment, whether the detected product has abnormal sound can be judged, and the two groups of modes are combined for use in practical application, so that the judgment accuracy can be improved;

2. in the use process of the invention, the electric telescopic cylinder can be contracted upwards or extended downwards to change the length of the electric telescopic cylinder after being powered on, when the electric telescopic cylinder extends downwards, the distance between the sound collector and a test product placed on a workbench can be adjusted from far to near, meanwhile, the distance between the electric telescopic cylinder and the test product below is monitored through the distance sensor, when the distance reaches a set value, the electric telescopic cylinder can stop running, so that the distance between the sound collector and the test products with different heights can be conveniently adjusted, the distance between the sound collector and the test products with different heights can be controlled within a range convenient for detecting the abnormal sound inside the test product, and a certain space is reserved for driving the upper part of the electric telescopic cylinder to fluctuate up and down when the electromagnetic vibrator works, and the mode can ensure that the distance between the sound collector and the sound collector can be within an optimal range for collecting audio signals when different test products are tested;

3. in the using process of the invention, the mechanical clamp is electrically connected with the processing system, after each group of products are detected, the test products with abnormal sound can be placed below the electric shrinkage rod, the test products without abnormal sound are placed in front of the workbench in the sound insulation box, then the two types of test products are distinguished, and simultaneously, when each group of test products with abnormal sound is placed, the electric shrinkage rod extends downwards to drive the marking pen to move downwards until the marking pen marks the surface of the test product below the electric shrinkage rod for distinguishing the products.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of the installation structure of the soundproof box and the opening/closing door of the present invention;

FIG. 4 is a schematic view of the mounting structure of the base plate, the support plate and the electromagnetic vibrator according to the present invention;

FIG. 5 is a schematic view of the mounting structure of FIG. 2 at A in accordance with the present invention;

FIG. 6 is a schematic view of the mounting structure of the electric telescopic cylinder, the connecting plate and the connecting rod of the present invention;

FIG. 7 is a schematic view of the mounting structure of the electric retractable rod and the panel according to the present invention;

FIG. 8 is a schematic view of the assembly of the combination box, the slot, the pressing spring and the controller according to the present invention.

In the figure: 1. a base plate; 101. a pulley; 102. a threaded rod; 103. a disc; 2. a support plate; 201. a heat radiation fan; 3. a sound insulation box; 301. opening and closing the door; 302. testing the product; 303. a mechanical clamp; 4. detecting the structure; 401. an electromagnetic vibrator; 402. a placing table; 403. a support pillar; 404. a work table; 405. a pressure sensor; 406. a joining block; 407. knocking the block; 5. a fixing plate; 501. an electric push rod; 502. pressing the plate; 6. an electric telescopic cylinder; 601. a connecting plate; 602. a connecting rod; 603. a tabling plate; 604. a fitting groove; 605. a distance sensor; 606. a sound collector; 607. a wire; 7. an electrically retractable rod; 701. a panel; 702. a through groove; 703. a marking pen; 8. a synthesis box; 801. a signal amplifier; 802. a notch; 803. a compression spring; 804. a controller; 805. a processing system; 806. and a drawing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, an embodiment of the present invention is shown: a vibration abnormal sound testing device for package detection and a detection method thereof comprise a bottom plate 1, support plates 2 and a sound insulation box 3, wherein the top of the bottom plate 1 is provided with two groups of support plates 2, the bottom plate 1 is used for integrating all the parts above the bottom plate, meanwhile, a stable place is provided for the assembly of the pulley 101 at the bottom of the device, the supporting plate 2 has a certain height, the sound insulation box 3 can be conveniently installed, and at the same time, provides a suitable installation space for the electromagnetic vibrator 401, so that the area emitting noise when the electromagnetic vibrator 401 is operated is positioned outside the internal area of the soundproof box 3, avoiding increasing noise inside the soundproof box 3 during the test, the supporting plate 2 provides a proper place for installing the cooling fan 201, so that the cooling fan can directly act on the electromagnetic vibrator 401, the sound insulation box 3 is installed at the top of the supporting plate 2, the sound insulation box 3 has a sound insulation function, and unnecessary noise can be avoided in the test process;

the top of the bottom plate 1 is provided with a detection structure 4, the detection structure 4 is composed of an electromagnetic vibrator 401, a placing table 402, supporting columns 403, a workbench 404, a pressure sensor 405, a connecting block 406 and a knocking block 407, the top of the electromagnetic vibrator 401 extends into the sound insulation box 3, the top of the electromagnetic vibrator 401 is provided with the placing table 402, the bottom of the placing table 402 is provided with the connecting block 406, the bottom of the connecting block 406 is provided with the knocking block 407, the top of the electromagnetic vibrator 401 is provided with the pressure sensor 405, the pressure sensor 405 is positioned below the knocking block 407, the top of the placing table 402 is provided with a plurality of groups of supporting columns 403, the top of the supporting columns is provided with the workbench 404, after the electromagnetic vibrator 401 is powered on, pulsating voltage obtained by half-wave rectification of alternating current is applied to a coil, the movable core is vibrated by the electromagnetic force of the movable core, and then the vibrating force is transmitted to the placing table 402 and all the components arranged on the top of the placing table 402, meanwhile, the tested product 302 and the knocking block 407 synchronously vibrate, and when the electromagnetic vibrator 401 vibrates, will drive the components above it to vibrate with the same frequency, set up the tested product 302 has not had abnormal sound, the placing platform 402 that the electromagnetic vibration machine 401 was installed on the top will fluctuate from top to bottom, then the power that the knocking block 407 that its bottom was installed was to pressure sensor 405, is 30 newtons, the tolerance is 1N, when the tested product 302 has abnormal sound, the force applied by the pressure sensor 405 from the knocking block 407 is 30N plus the force generated by the abnormal sound of the tested product 302, which is greater than 31 newtons, and a wireless signal connection between the pressure sensor 405 and the processing system 805, the data information may be recorded in the processing system 805, and the force during detection may be compared with the original set value by the processing system 805, so as to determine whether the detected product has abnormal sound.

Further, detect inside structure 4 is located the space that two sets of backup pads 2 enclose and close, and the top that detects structure 4 extends into the inside of sound-proof box 3, and main part component electromagnetic vibration machine 401 in detecting structure 4 is located the outside of sound-proof box 3 for the region that sends the noise when electromagnetic vibration machine 401 operates is located outside the interior region of sound-proof box 3, avoids increasing the noise of sound-proof box 3 inside in the test procedure.

Further, an electric telescopic cylinder 6 is installed on the top wall of the sound insulation box 3, a connecting plate 601 is installed at the bottom of the electric telescopic cylinder 6, two groups of connecting rods 602 are installed on the outer walls of two sides of the connecting plate 601, a tabling plate 603 is installed on one side, close to the connecting plate 601, of the connecting rod 602, the tabling plate 603 is located below the connecting plate 601, a tabling groove 604 is arranged at the top of the tabling plate 603, a slot hole is arranged at the top of the tabling plate 603, a distance sensor 605 is installed at the top of the slot hole, the bottom of the distance sensor 605 penetrates through the inside of the slot hole, a sound collector 606 is installed at the top of the tabling plate 603, the bottom of the sound collector 606 extends into the tabling groove 604, a conducting wire 607 is installed at the top of the sound collector 606, the electric telescopic cylinder 6 can be contracted upwards or extended downwards after being powered on to change the length of the electric telescopic cylinder, when the electric telescopic cylinder extends downwards, the distance between the sound collector 606 and the test product 302 placed on the workbench 404 can be adjusted from far to near, meanwhile, the distance between the test product 302 and the lower part is monitored through the distance sensor 605, when the distance reaches a set value, the operation of the electric telescopic cylinder 6 can be stopped, the distance between the sound collector 606 and the test product 302 with different heights is convenient to adjust, the distance is controlled within a range convenient for detecting abnormal sounds in the test product 302, a certain space is reserved for driving components above the sound collector to fluctuate up and down when the electromagnetic vibrator 401 works, the connecting plates 601 can be connected with the four groups of connecting rods 602, then the embedding plates 603 are convenient to install, the embedding plates 603 provide a placing place for installing the sound collector 606, meanwhile, the sound collector 606 can be clamped with the embedding grooves 604, the sound collector is not prone to falling off from the top of the embedding plates 603, the conducting wire 607 has a certain length, and the sound collector 606 is convenient to be connected with a data line of a processing system.

Furthermore, the front of the sound insulation box 3 is provided with the opening and closing door 301, the bottom wall of the sound insulation box 3 and the top of the workbench 404 are both provided with the test product 302, the rear wall of the sound insulation box 3 is provided with the mechanical clamp 303, the opening and closing door 301 is connected with the sound insulation box 3 through a hinge, the opening and closing door 301 and the workbench 404 have mobility, the opening and closing door 301 is applied with pulling force and pushing force to realize the opening and closing of the sound insulation box 3, the maintenance and the placement of the internal components are convenient, the undetected test product 302 is placed at one side of the sound insulation box 3 far away from the electric shrinkage rod 7, the test product 302 to be detected is placed above the workbench 404, the test product 302 with abnormal sound is placed below the electric shrinkage rod 7, the test product 302 without abnormal sound is placed in front of the workbench 404, the mechanical clamp 303 is electrically connected with the processing system 805, and the test product 302 with abnormal sound can be placed below the electric shrinkage rod 7 after each group of products is detected, the non-abnormal-sound test product 302 is placed in front of the worktable 404 inside the soundproof box 3, and then the two types of test products 302 are distinguished, and simultaneously it is possible to place the non-detected test product 302 set aside above the worktable 404 after the end of the test of each set of test products 302.

Further, electronic shrink pole 7 is installed to the roof of sound-proof box 3, and electronic shrink pole 7 is located one side of electronic flexible section of thick bamboo 6, panel 701 is installed to the bottom of electronic shrink pole 7, the top of panel 701 is provided with logical groove 702, it is located the place ahead of electronic shrink pole 7 to lead to groove 702, marker pen 703 is installed at the top of leading to groove 702, and marker pen 703's bottom runs through the inside that leads to groove 702, place the below at electronic shrink pole 7 after mechanical fixture 303 will have the test product 302 of abnormal sound, electronic shrink pole 7 all downwardly extending, in order to drive marker pen 703 downwardly moving, make the mark until its test product 302 surface in the below, be used for distinguishing the product.

Further, a comprehensive box 8 is installed on the top of the bottom plate 1, the comprehensive box 8 is located on one side of the sound insulation box 3, a signal amplifier 801 is installed on the top of the bottom plate 1, the signal amplifier 801 is located inside an enclosed space formed by a concave part at the bottom of the comprehensive box 8, a notch 802 is arranged on the outer wall of one side, away from the sound insulation box 3, of the comprehensive box 8, a plurality of groups of extrusion springs 803 are evenly installed on the bottom wall of the notch 802, a controller 804 is installed on the top of the extrusion springs 803, the controller 804 is located inside the space of the notch 802, a processing system 805 is installed on the top of the comprehensive box 8, a movable groove is arranged on the front side of the comprehensive box 8, a pull plate 806 is installed on the front side of the movable groove, the back side of the pull plate 806 extends into the inside of the movable groove, a plurality of through holes are arranged on the front side and the back side of the comprehensive box 8, the comprehensive box 8 is used for integrally installing the signal amplifier 801, the controller 804 and the processing system 805, the signal amplifier 801 can amplify the audio signal collected by the sound collector 606, increase the collected audio signal, increase the fluctuation intensity of the original signal, facilitate more intuitive comparison with the audio fluctuation inside the sound insulation box 3 when the test product 302 is not placed and is recorded inside the processing system 805, the processing system 805 can be used for storing and recording data information, and simultaneously can compare and judge the data information before and after the test, the arrangement of the notch 802 is convenient for the controller 804 to store, the extrusion spring 803 has a certain elastic deformation capability, the controller 804 can generate a certain vibration when in work, the vibration can be transmitted downwards to cause the resonance of the extrusion spring 803, then the extrusion spring 803 can absorb most impact force generated by the vibration under the elastic deformation capability of the extrusion spring 803, and the drawing plate 806 can draw a part of area from the inside of the movable slot, a field may be provided for the processing system 805 to operate, and the provision of the through holes facilitates heat dissipation.

Furthermore, four groups of threaded rods 102 are uniformly arranged on the top of the bottom plate 1, the bottoms of the four groups of threaded rods 102 penetrate through the inside of the bottom plate 1, a disc 103 is arranged at the bottom of the threaded rod 102, a plurality of groups of pulleys 101 are uniformly arranged at the bottom of the bottom plate 1, and the pulleys 101 are positioned in a space enclosed by the four groups of threaded rods 102.

Further, the outer wall of one side of the supporting plate 2 close to the electromagnetic vibrator 401 is provided with the cooling fan 201, after the cooling fan 201 is powered on, the power part in the cooling fan 201 can drive the fan blades to rotate, then the air in the surrounding space is stirred to generate wind power, and the circulation speed of the air is accelerated, and in the device, the cooling fan is close to the two sides of the electromagnetic vibrator 401, so that the dissipation speed of the generated heat can be accelerated when the electromagnetic vibrator 401 runs.

Further, two sets of fixing plates 5 are installed at the top of the workbench 404, and the two sets of fixing plates 5 are respectively located at two sides of one set of the test product 302, an electric push rod 501 is installed on the outer wall of one side of the fixing plate 5 close to the test product 302, a pressing plate 502 is installed at one end of the electric push rod 501 close to the test product 302, a rubber plate is installed on the outer wall of one side of the pressing plate 502 far away from the electric push rod 501, one set of the test product 302 is placed at the top of the workbench 404, the electric push rod 501 is started, which extends toward the direction of the test product 302 to change its length, and then drives the pressing plate 502 to move toward the test product 302 and attach to it, the test product 302 can be clamped and fixed on the table top of the worktable 404, the rubber plate has certain elasticity, the hard nature of the compression plate 502 for holding the outer surface of one side is neutralized, and damage to the test product 302 during holding and securing is avoided.

Further, the working steps of the device are as follows:

s1, placing a plurality of groups of test products 302 on one side, far away from an electric contraction rod 7, in a sound insulation box 3, placing one group of test products 302 on the top of a workbench 404, starting an electric push rod 501, extending towards the direction close to the test products 302 to change the length of the electric push rod, then driving a pressing plate 502 to move towards the direction of the test products 302 and attach to the test products 302, realizing clamping of the test products 302, and fixing the test products on the table top of the workbench 404;

s2, starting the electric telescopic cylinder 6, extending downwards to change the length of the electric telescopic cylinder, adjusting the distance between the sound collector 606 and the test product 302 placed on the workbench 404 from far to near, monitoring the distance between the electric telescopic cylinder and the test product 302 below through the distance sensor 605, stopping the operation of the electric telescopic cylinder 6 when the distance reaches a set value, further conveniently adjusting the distance between the sound collector 606 and the test products 302 with different heights, controlling the distance within a range convenient for detecting abnormal sounds in the test product 302, and reserving a certain space for driving the parts above the electric telescopic cylinder to fluctuate up and down when the electromagnetic vibrator 401 works;

s3, starting the electromagnetic vibrator 401, the signal amplifier 801, the controller 804 and the processing system 805, correspondingly inputting data to be tested, applying pulsating voltage obtained by half-wave rectification of alternating current to a coil after the electromagnetic vibrator 401 is powered on, enabling the movable iron core to vibrate by using the electromagnetic force of the coil, transmitting the vibration force to a placing table 402 arranged on the top of the movable iron core and all parts on the top of the movable iron core, and synchronously vibrating the tested product 302 and the knocking block 407;

s4, starting the sound collector 606 and the pressure sensor 405, after the electromagnetic vibrator 401 is started, the sound collector 606 is used for collecting sound generated inside the soundproof box 3 and transmitting sound data to the signal amplifier 801 and the controller 804 which are electrically connected with the sound collector, the signal amplifier 801 can amplify audio signals collected by the sound collector 606, the collected audio signals are increased, the fluctuation intensity of original signals is increased, the comparison with audio fluctuation inside the soundproof box 3 when the tested product 302 is not placed and recorded inside the processing system 805 is more intuitive, meanwhile, when the electromagnetic vibrator 401 vibrates, the components above the electromagnetic vibrator can be driven to vibrate at the same frequency, the tested product 302 is set to have no abnormal sound, the placing table 402 installed at the top of the electromagnetic vibrator 401 can fluctuate up and down, and then the force applied to the pressure sensor 405 by the knocking block 407 installed at the bottom of the electromagnetic vibrator 401, 30 newtons with a tolerance of 1 newton, when the product 302 to be tested has abnormal sound, the force applied by the pressure sensor 405 from the knocking block 407 is set to be greater than 31 newtons, the force generated by the 30 newtons plus the abnormal sound of the product 302 to be tested has a value greater than 31 newtons, the pressure sensor 405 is in wireless signal connection with the processing system 805, data information thereof can be recorded in the processing system 805, the detected force is compared with an original set value by the processing system 805, and whether the detected product has abnormal sound or not can be determined;

s5, the mechanical clamp 303 is electrically connected with the processing system 805, after each group of products are detected, the test products 302 with abnormal sound can be placed below the electric contraction rod 7, the test products 302 without abnormal sound are placed in front of the workbench 404 in the sound insulation box 3, then the two types of test products 302 are distinguished, and when each group of test products 302 with abnormal sound is placed, the electric contraction rod 7 extends downwards to drive the marking pen 703 to move downwards until the marking is made on the surface of the test product 302 below the marking pen for distinguishing the products, and after the test of each group of test products 302 is finished, the undetected test products 302 placed beside the marking pen can be placed above the workbench 404.

The working principle is as follows: starting the electromagnetic vibrator 401, the signal amplifier 801, the controller 804 and the processing system 805, inputting the data to be tested correspondingly, applying pulsating voltage obtained by half-wave rectification of alternating current to a coil after the electromagnetic vibrator 401 is powered on, using the electromagnetic force to make the movable iron core vibrate, then transmitting the vibration force to the placing table 402 and parts on the top of the placing table, the tested product 302 and the knocking block 407 vibrate synchronously, starting the sound collector 606 and the pressure sensor 405, after the electromagnetic vibrator 401 is started, the sound collector 606 is used for collecting the sound generated inside the soundproof box 3 and transmitting the sound data to the signal amplifier 801 and the controller 804 which are electrically connected with the sound collector, the signal amplifier 801 can amplify the audio signal collected by the sound collector 606 and increase the collected audio signal, the fluctuation intensity of the original signal is increased, so that the comparison with the audio fluctuation inside the soundproof box 3 can be more intuitively carried out conveniently when the tested product 302 is not placed and recorded inside the processing system 805, meanwhile, when the electromagnetic vibrator 401 vibrates, the supporting column 403 is driven to vibrate, the tested product 302 is set to have no abnormal sound, when the supporting column 403 is driven to contract downwards by vibration, the force applied to the pressure sensor 405 by the knocking block 407 arranged at the bottom of the workbench 404 is 30 newtons, the upper and lower tolerance of the knocking block is 1 newton, when the tested product 302 has the abnormal sound, the force applied by the knocking block 407 and applied by the pressure sensor 405 is 30 newtons, the force generated by the abnormal sound of the tested product 302 is added by the pressure sensor 405, the value of the force is larger than 31 newtons, the pressure sensor 405 is in wireless signal connection with the processing system 805, the data information can be recorded inside the processing system 805, the force during detection is compared with the original set value by the processing system 805, at this time, whether the detected product has abnormal sound or not can be judged.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.