A fully automatic car horn automatic detection device

Abstract

The present invention discloses a fully automatic automobile horn automatic detection device, which relates to the field of automobile horn air tightness detection, including a cabinet, a first telescopic cylinder and an upper jig tooling, the top of the cabinet is rotatably connected to a workbench, and the bottom of the workbench is connected to a driving device, and the side of the workbench is provided with a lower jig mechanism for detecting the air tightness of the horn and flipping and unloading, the top of the cabinet is installed with a first roller conveyor belt and a qualified product conveyor belt, and the top of the cabinet is installed with a second roller conveyor belt and a defective product conveyor belt, and the top of the cabinet is installed with a double-axis linkage mechanism and a horn feeding conveyor belt. The present invention can be used not only to detect the air tightness of the horn by setting a lower jig mechanism, but also to unload the horn after the detection, and a controllable closing plate is provided in the lower jig mechanism, and the opening and closing of the closing plate can make the horn in the lower jig tooling unload as needed.

Description

Technical Field

[0001] The invention relates to the field of air tightness detection of automobile horns, in particular to a fully automatic detection device for automobile horns. Background Art

[0002] A speaker is an electroacoustic device that can convert electrical signals into sound. It is an important equipment in the audio system. According to the sound-generating principle, it can be divided into paper cone speakers, magnetic speakers, ion speakers and electrostatic speakers. Paper cone speakers are mainly composed of a diaphragm, a dust cap, an aluminum cone frame, a spring and a magnet.

[0003] The horn needs to be tested for waterproof level during manufacturing, that is, the air tightness of the horn is tested using an air tightness tester. The principle of air tightness test is the pressure decay method. A product is pressurized with gas to see the pressure change of the gas. There are two situations here. One is that the product itself has an inflation hole. We directly inflate and pressurize the product, and then cut off the gas source and observe the change in gas pressure. If the pressure drops, it means that the product is leaking. If it does not drop, it is good. The second is that the product does not have an inflation hole, we need to make a sealed cavity of the same size and shape as the product, that is, a tooling fixture, and try to fit the product as much as possible, because the test result is more accurate. Then pressurize the gas, and the gas will be filled into the space between the product and the mold. Then cut off the gas source to detect whether the gas pressure has dropped. If so, it is a leak, and the gas has leaked into the product. If it does not drop, it is good.

[0004] The air tightness tester for car horns is usually set to multiple channels, which can detect multiple horns at the same time to improve the detection efficiency. The staff needs to manually fit the horn into the lower fixture tooling, and then start the telescopic mechanism to push the upper fixture down. The upper fixture and the lower fixture fit together to form a sealed cavity, and then the pressure system injects pressure into the inside of the fixture cavity. After a period of pressurization, voltage stabilization and comparison with the standard pressure change value, observe whether the pressure leakage is normal. If it meets the standard pressure change value, the horn is qualified, otherwise the horn is a defective product. After the inspection is completed, the staff will take out the horn. Although the air tightness tester is set with multiple channels to detect multiple horns at the same time, the loading and unloading links of the horn detection work still need to be completed manually, which not only consumes labor costs, but also reduces the overall efficiency of horn detection when there are a large number of horns to be tested. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a fully automatic automobile horn automatic detection device to solve the technical problems mentioned in the above background.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fully automatic automobile horn automatic detection device, comprising a cabinet, a first telescopic cylinder and an upper jig, the top of the cabinet is rotatably connected to a workbench, and the bottom of the workbench is connected to a driving device, and the side of the workbench is provided with a lower jig mechanism for detecting the air tightness of the horn and flipping and unloading, the top of the cabinet is installed with a first roller conveyor belt and a qualified product conveyor belt, and the top of the cabinet is installed with a second roller conveyor belt and a defective product conveyor belt, and the top of the cabinet is installed with a double-axis linkage mechanism and a horn feeding conveyor belt.

[0007] By adopting the above technical scheme, the lower jig mechanism is set up, which can not only be used to detect the air tightness of the speaker, but also can be used to unload the tested speakers. A controllable closing plate is set in the lower jig mechanism. When the speaker is tested for air tightness, the closing plate is opened, which does not affect the fitting of the upper jig and the lower jig. When the air tightness test of the speaker is completed and it needs to be unloaded, the upper jig rises, and then the lower jig flips 180° before the closing plate is opened to allow the speaker to fall smoothly onto the conveyor belt. During the process of the lower jig flipping 180°, the closing plate is in a closed state to prevent the speaker from falling midway. If the speaker falls during the flipping of the lower jig, it will fall on the conveyor belt in an inclined posture and roll, and the final landing position cannot be controlled, and the speaker falling in an inclined posture is easy to cause damage to the speaker.

[0008] The present invention is further configured as follows: the lower jig mechanism includes a lower jig tooling rotatably connected to the workbench, and the lower jig tooling is internally rotatably connected with a forward and reverse threaded rod and a second transmission shaft, and the forward and reverse threaded rod and the second transmission shaft are transmission-connected by setting a second bevel gear assembly, a second gear is arranged on the outside of the second transmission shaft, two groups of linkage rods are movably installed inside the lower jig tooling, and the two groups of linkage rods are symmetrically arranged about the center of the second gear, and a rack matching the second gear is installed on the side of the linkage rod, a limit rod is arranged at one end of the linkage rod, and a spring is arranged on the outside of the limit rod.

[0009] By adopting the above technical solution, a linkage rod is set to drive the rack to move, thereby driving the second gear to rotate, so that the second transmission shaft rotates accordingly, and the rotation of the second transmission shaft will drive the forward and reverse threaded rods to rotate. Using the screw principle, the rotation of the forward and reverse threaded rods can drive the two sets of closing plates to close and open each other.

[0010] The present invention is further configured such that the forward and reverse threaded rods and the second transmission shaft are symmetrically arranged in two groups inside the lower fixture tooling, and the external threads of the two groups of forward and reverse threaded rods are connected with four groups of sleeves, and closing plates are symmetrically arranged at both ends of the four groups of sleeves.

[0011] By adopting the above technical solution, two sets of positive and negative threaded rods are arranged inside the lower fixture, and then two sets of closing plates can be installed at both ends of the positive and negative threaded rods. The two sets of threaded rods simultaneously drive the closing plate to move, which can improve the stability of the closing plate.

[0012] The present invention is further configured such that the side surfaces of the plurality of groups of the sleeves are provided with limit blocks, and the interior of the lower fixture tooling is provided with limit grooves matching the limit blocks.

[0013] By adopting the above technical solution, the movement of the sleeve can be limited by setting the limit block and the limit groove.

[0014] The present invention is further configured such that four groups of the lower jig mechanisms are provided, and the four groups of lower jig mechanisms are evenly distributed on the side of the workbench, the side of the workbench is rotatably connected with four groups of first transmission shafts, and the four groups of first transmission shafts correspond to the four groups of lower jig mechanisms, the first transmission shafts and the lower jig mechanisms are transmission connected by setting a first bevel gear assembly, and the bottom of the four groups of first transmission shafts are all provided with a first gear.

[0015] By adopting the above technical solution and setting up four sets of lower fixture mechanisms to cooperate with the rotation of the workbench, the side of the workbench can be divided into a speaker loading station, a speaker inspection station, a speaker qualified product unloading station, and a speaker defective product unloading station, so that the speaker air tightness detection and loading and unloading work can be carried out fully automatically.

[0016] The present invention is further configured such that a first arcuate inner gear ring and a second arcuate inner gear ring are provided on the top of the cabinet, and the first arcuate inner gear ring and the second arcuate inner gear ring are symmetrically arranged about the center of the workbench, and the first arcuate inner gear ring, the second arcuate inner gear ring and the first gear match.

[0017] By adopting the above technical solution and providing the first arc-shaped inner gear ring and the second arc-shaped inner gear ring, the lower fixture mechanism can be turned 180° when the workbench drives the lower fixture mechanism to rotate.

[0018] The present invention is further configured such that four groups of second telescopic cylinders are arranged at the bottom of the workbench, and fixed frames matching the linkage rods are arranged at the ends of the second telescopic cylinders.

[0019] By adopting the above technical solution, by setting up a second telescopic cylinder and a fixed frame, the second telescopic cylinder pushes the fixed frame to move the extrusion linkage rod, so that the closing plate of the lower fixture mechanism can be opened, and the fixed frame can fix the lower fixture tooling.

[0020] The present invention is further configured such that a first telescopic cylinder is installed on the top of the cabinet by arranging a bracket, an upper jig is installed on the bottom of the first telescopic cylinder, and the upper jig is connected to an airtightness detection device.

[0021] By adopting the above technical solution, the upper jig tooling is connected to an air tightness detection device, which includes an air pressure system and a pressure analysis system. The air pressure system is used to inject pressure into the upper jig tooling, and the pressure analysis system includes a pressure sensor for monitoring the pressure changes in the cavity between the upper jig tooling and the lower jig tooling.

[0022] In summary, the present invention mainly has the following beneficial effects:

[0023] 1. The present invention can be used not only to detect the air tightness of the speaker by setting a lower jig mechanism, but also to unload the tested speakers. A controllable closing plate is arranged in the lower jig mechanism. When the speaker is tested for air tightness, the closing plate is opened without affecting the fitting of the upper jig and the lower jig. When the air tightness test of the speaker is completed and unloading is required, the upper jig rises, and then the lower jig flips 180° before the closing plate is opened to allow the speaker to fall steadily onto the conveyor belt. During the process of the lower jig flipping 180°, the closing plate is in a closed state to prevent the speaker from falling midway. If the speaker falls during the flipping of the lower jig, it will fall on the conveyor belt in an inclined posture and roll, and the final landing position cannot be controlled, and the speaker falling in an inclined posture is likely to cause damage to the speaker.

[0024] 2. The present invention can automatically perform the air tightness test of the speaker by rotating and installing four sets of lower fixture mechanisms on the side of the workbench. The sides of the workbench correspond to the speaker loading station, the speaker testing station, the qualified product unloading station, and the defective product unloading station. Then, the rotation of the workbench can drive the lower fixture mechanism to switch between the four stations, so that the loading work, testing work, and classified unloading work of the speaker air tightness test can be carried out in an orderly manner, reducing the investment of labor costs and improving the efficiency of speaker testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection between the lower fixture mechanism and the workbench of the present invention;

[0027] Figure 3 For the present invention Figure 2 A in the enlarged view;

[0028] Figure 4 It is a schematic diagram of the connection between the second telescopic cylinder, the fixing frame and the workbench of the present invention;

[0029] Figure 5 It is a schematic diagram of the workbench structure of the present invention;

[0030] Figure 6It is a schematic diagram of the connection between the second telescopic cylinder and the fixing frame of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the lower fixture mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the internal structure of the lower fixture tooling of the present invention;

[0033] Fig. 9 It is a schematic diagram of the connection between the linkage rod, the rack, the limit rod and the spring of the present invention;

[0034] Fig.10 It is a schematic diagram of the structure of the lower fixture and the limiting groove of the present invention;

[0035] Fig.11 It is a schematic diagram of the connection between the sleeve, the limit block and the closing plate of the present invention.

[0036] In the figure: 1, cabinet; 2, first telescopic cylinder; 3, upper fixture; 4, workbench; 5, lower fixture mechanism; 6, first transmission shaft; 7, first bevel gear assembly; 8, first gear; 9, first arc-shaped inner gear ring; 10, second arc-shaped inner gear ring; 11, first roller conveyor belt; 12, qualified product conveyor belt; 13, second roller conveyor belt; 14, defective product conveyor belt; 15, double-axis linkage mechanism; 16, speaker feeding conveyor belt; 17, second telescopic cylinder; 18, fixed frame; 501, lower fixture; 502, positive and negative threaded rod; 503, second transmission shaft; 504, second bevel gear assembly; 505, second gear; 506, linkage rod; 507, rack; 508, limit rod; 509, spring; 510, sleeve; 511, limit block; 512, limit groove; 513, closing plate. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] The following describes an embodiment of the present invention based on its overall structure.

[0039] A fully automatic car horn automatic detection device, such as Figure 1-11As shown, it includes a cabinet 1, a first telescopic cylinder 2 and an upper fixture 3, the top of the cabinet 1 is rotatably connected to a workbench 4, and the bottom of the workbench 4 is connected to a driving device, and a lower fixture mechanism 5 for detecting the air tightness of the speaker and flipping and unloading is arranged on the side of the workbench 4, the upper fixture 3 and the lower fixture mechanism 5 are fitted together to form a sealed cavity, and the air tightness of the speaker can be detected, and a first roller conveyor belt 11 and a qualified product conveyor belt 12 are installed on the top of the cabinet 1, and the qualified product conveyor belt 12 is used to transport the speakers that have passed the air tightness test, and a second roller conveyor belt 13 and a defective product conveyor belt 14 are installed on the top of the cabinet 1, and the defective product conveyor belt 14 is used to transport the speakers that have failed the air tightness test, and a double-axis linkage mechanism 15 and a speaker feeding conveyor belt 16 are installed on the top of the cabinet 1, and the double-axis linkage mechanism 15 is composed of two sets of linear guide rails, which are used to adjust the double-axis linkage mechanism 15. The position of the fixture tooling (finger cylinder) can be used to detect the air tightness of the horn by setting the lower fixture mechanism 5, and can also be used to unload the tested horn. A controllable closing plate 513 is arranged in the lower fixture mechanism 5. When the horn is tested for air tightness, the closing plate 513 is opened, which does not affect the fitting of the upper fixture tooling 3 and the lower fixture tooling 501. When the air tightness test of the horn is completed and unloading is required, the upper fixture tooling 3 rises, and then the lower fixture tooling 501 is flipped 180° before the closing plate 513 is opened to allow the horn to fall smoothly onto the conveyor belt. During the process of flipping the lower fixture tooling 501 180°, the closing plate 513 is in a closed state to prevent the horn from falling midway. If the horn falls during the flipping of the lower fixture tooling 501, it will fall on the conveyor belt in an inclined posture and roll. The final landing position is uncontrollable, and the horn falling in an inclined posture is easy to cause damage to the horn.

[0040] See also Figure 7-10 The lower fixture mechanism 5 includes a lower fixture fixture 501 rotatably connected to the workbench 4, and the inner part of the lower fixture fixture 501 is rotatably connected with a positive and negative threaded rod 502 and a second transmission shaft 503, and the positive and negative threaded rod 502 and the second transmission shaft 503 are transmission-connected by setting a second bevel gear assembly 504, and the outer part of the second transmission shaft 503 is provided with a second gear 505, and the inner part of the lower fixture fixture 501 is movably installed with two sets of linkage rods 506, and the two sets of linkage rods 506 are symmetrically arranged about the center of the second gear 505, and the linkage rods 506 are connected to the second gear 505. A rack 507 matching the second gear 505 is installed on the side of the movable rod 506, and a limit rod 508 is set at one end of the linkage rod 506, and a spring 509 is sleeved on the outer side of the limit rod 508. The linkage rod 506 is set to drive the rack 507 to move, thereby driving the second gear 505 to rotate, so that the second transmission shaft 503 rotates accordingly, and the rotation of the second transmission shaft 503 will drive the forward and reverse threaded rods 502 to rotate. Using the screw principle, the rotation of the forward and reverse threaded rods 502 can drive the two sets of closing plates 513 to close and open each other.

[0041] See also Figure 7-11 Two groups of positive and negative threaded rods 502 and the second transmission shaft 503 are symmetrically arranged inside the lower jig tooling 501, and the external threads of the two groups of positive and negative threaded rods 502 are connected with four groups of sleeves 510, and closing plates 513 are symmetrically arranged at both ends of the four groups of sleeves 510. By arranging two groups of positive and negative threaded rods 02 inside the lower jig tooling 501, two groups of closing plates 513 can be installed at both ends of the positive and negative threaded rods 502, and the two groups of threaded rods 502 simultaneously drive the closing plate 513 to move, which can improve the stability of the closing plate 513.

[0042] See also Fig.10 and Fig.11 The sides of the multiple groups of sleeves 510 are all provided with limiting blocks 511, and the interior of the lower fixture tooling 501 is provided with limiting grooves 512 that match the limiting blocks 511. By setting the limiting blocks 511 and the limiting grooves 512, the movement of the sleeves 510 can be limited.

[0043] See also Figure 2 and Figure 3 There are four groups of lower jig mechanisms 5, and the four groups of lower jig mechanisms 5 are evenly distributed on the side of the workbench 4. The side of the workbench 4 is rotatably connected with four groups of first transmission shafts 6, and the four groups of first transmission shafts 6 correspond to the four groups of lower jig mechanisms 5. The first transmission shafts 6 and the lower jig mechanisms 5 are connected by a first bevel gear assembly 7, and the bottoms of the four groups of first transmission shafts 6 are all provided with first gears 8. By arranging four groups of lower jig mechanisms 5 to cooperate with the rotation of the workbench 4, the side of the workbench 4 can be divided into a speaker loading station, a speaker detection station, a speaker qualified product unloading station, and a speaker defective product unloading station, so that the speaker air tightness detection and loading and unloading work can be fully automatic.

[0044] See also Figure 1 A first arcuate inner gear ring 9 and a second arcuate inner gear ring 10 are provided on the top of the cabinet 1, and the first arcuate inner gear ring 9 and the second arcuate inner gear ring 10 are symmetrically arranged about the center of the workbench 4, and the first arcuate inner gear ring 9, the second arcuate inner gear ring 10 and the first gear 8 are matched. By arranging the first arcuate inner gear ring 9 and the second arcuate inner gear ring 10, when the workbench 4 drives the lower fixture mechanism 5 to rotate, the lower fixture mechanism 5 can be flipped 180°.

[0045] See also Figure 4 and Figure 6Four sets of second telescopic cylinders 17 are arranged at the bottom of the workbench 4, and a fixing frame 18 matching the linkage rod 506 is arranged at the end of the second telescopic cylinder 17. By setting the second telescopic cylinder 17 and the fixing frame 18, the second telescopic cylinder 17 pushes the fixing frame 18 to move and squeeze the linkage rod 506, so that the closing plate 513 of the lower fixture mechanism 5 can be opened, and the fixing frame 18 can fix the lower fixture tooling 501.

[0046] See also Figure 1 A first telescopic cylinder 2 is installed on the top of the cabinet 1 by setting a bracket, and an upper jig 3 is installed on the bottom of the first telescopic cylinder 2, and the upper jig 3 is connected to an air tightness detection device, and the upper jig 3 is connected to an air tightness detection device. The air tightness detection device includes an air pressure system and a pressure analysis system. The air pressure system is used to inject pressure into the upper jig 3, and the pressure analysis system includes a pressure sensor for monitoring the pressure change in the cavity between the upper jig 3 and the lower jig 501.

[0047] The working principle of the present invention is as follows: the side of the workbench 4 close to the double-axis linkage mechanism 15 is the speaker loading station, the side of the workbench 4 close to the upper fixture tooling 3 is the speaker inspection station, the side of the workbench 4 close to the qualified product conveyor belt 12 is the speaker qualified product unloading station, and the side of the workbench 4 close to the defective product conveyor belt 14 is the speaker defective product unloading station. The rotation of the workbench 4 drives the lower fixture mechanism 5 to rotate, but the position of the station on the side of the workbench 4 remains unchanged. When the air tightness of the speaker needs to be tested, the speaker to be tested is transported by the speaker feeding conveyor belt 16 to the bottom of the double-axis linkage mechanism 15. The speaker feeding conveyor belt 16 adopts an intermittent transportation method, so that the speakers reach the bottom of the double-axis linkage mechanism 15 in turn, and then the double-axis linkage mechanism 15 works to sequentially clamp and transfer the speakers on the speaker feeding conveyor belt 16 to the lower fixture mechanism 5 of the speaker loading station.

[0048] During the loading process of the lower fixture mechanism 5 of the speaker loading station, the second telescopic cylinder 17 located below the speaker loading station works to push the fixing frame 18 to move and engage and fix the lower fixture tooling 501, and the fixing frame 18 will squeeze the linkage rod 506, so that the linkage rod 506 shrinks into the interior of the lower fixture tooling 501, and the linkage rod 506 will compress the spring 509, and the linkage rod 506 drives the rack 507 to move, and the rack 507 meshes with the second gear 505, so that the second transmission shaft 503 rotates with the second gear 505, and at the same time, the second gear 505 will drive another set of linkage rods 506 and rack 507 to shrink into the interior of the lower fixture tooling 501, and the rotation of the second transmission shaft 503 will drive the forward and reverse threaded rods 502 to rotate through the second bevel gear assembly 504, and then the sleeve 510 threadedly connected with the forward and reverse threaded rods 502 will be moved from the lower fixture tooling The interior of the lower jig 501 extends outward, and the limit block 511 and the limit groove 512 limit the movement of the sleeve 510. When multiple groups of sleeves 510 are extended from the interior of the lower jig 501, the two groups of closing plates 513 will move away from each other, and then the two groups of closing plates 513 will open. When the two groups of closing plates 513 are opened, the double-axis linkage mechanism 15 can transfer the speaker to be tested to the groove of the lower jig 501. When the lower jig mechanism 5 of the speaker loading station completes the loading, the second telescopic cylinder 17 works to drive the fixed frame 18 to reset, and then the fixed frame 18 no longer squeezes the linkage rod 506. Under the reset action of the spring 509, multiple groups of linkage rods 506 extend from the interior of the lower jig 501, and then the second transmission shaft 503 and the second gear 505 rotate in the opposite direction. According to the above steps, the two groups of closing plates 513 will close again.

[0049] The workbench 4 is driven by the driving device to rotate 90°, so that the lower fixture mechanism 5 that completes loading at the speaker loading station rotates to the speaker testing station. According to the above steps, the two sets of closing plates 513 are reopened, and then the first telescopic cylinder 2 is started to push the upper fixture tooling 3 down, and then the upper fixture tooling 3 will fit with the lower fixture tooling 501, and then the airtightness testing equipment connected to the upper fixture tooling 3 generates pressure, and pressurizes the cavities of the upper fixture tooling 3 and the lower fixture tooling 501. After a period of voltage stabilization, the airtightness testing equipment will compare the pressure change value with the standard change value to obtain data. If the pressure change value of the speaker to be tested is within the standard change value range, the airtightness of the speaker is qualified, otherwise the airtightness of the speaker is unqualified. After the airtightness test of the speaker is completed, the first telescopic cylinder 2 drives the upper fixture tooling 3 to rise, and then the two sets of closing plates 513 are closed again.

[0050] Next, the workbench 4 rotates 90° again, and then the lower fixture mechanism 5 that has completed the inspection at the speaker inspection station rotates to the speaker qualified product unloading station. During the rotation of the workbench 4, the first gear 8 at the position of the lower fixture mechanism 5 will mesh with the first arc-shaped inner gear ring 9, and then the first transmission shaft 6 rotates, and the lower fixture mechanism 5 is driven to rotate 180° through the first bevel gear assembly 7, that is, the lower fixture mechanism 5 will turn 180° and reach the speaker qualified product unloading station. If the speaker is qualified in air tightness, the two sets of closing plates 5 in the lower fixture mechanism 5 will be 13 opens, and then the qualified horn will fall smoothly on the first roller conveyor belt 11, and then slide to the qualified product conveyor belt 12 to be transported away. If the air tightness of the horn is unqualified, the two groups of closing plates 513 will not open when the group of lower fixture mechanism 5 is located at the horn qualified product unloading station, and the group of lower fixture mechanism 5 will continue to follow the workbench 4 to rotate 90° to reach the horn defective product unloading station. According to the above steps, the two groups of closing plates 513 open, so that the defective horn falls smoothly on the second roller conveyor belt 13, and then slides to the defective product conveyor belt 14 to be transported away.

[0051] Then the workbench 4 continues to rotate 90 degrees, and the group of lower jig mechanisms 5 will return to the speaker loading station to repeat the loading work. In the process of returning to the loading station, the first gear 8 at the position of the group of lower jig mechanisms 5 will mesh with the second arc-shaped inner gear ring 10. According to the above steps, the group of lower jig mechanisms 5 will flip 180° again, so that the groove of the lower jig tooling 501 faces upward. There are four groups of lower jig mechanisms 5 distributed in the array of the workbench 4. Therefore, the four groups of lower jig mechanisms 5 follow the workbench 4 to rotate 90° each time to carry out work. Each group of lower jig mechanisms 5 repeats the loading, testing, unloading of qualified products, and unloading of defective products of the speaker as the workbench 4 rotates, thereby making the air tightness test of the speaker fully automatic, thereby improving the detection efficiency.

[0052] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A fully automatic automobile horn automatic detection device, comprising a cabinet (1), a first telescopic cylinder (2) and an upper fixture (3), characterized in that: The top of the cabinet (1) is rotatably connected to a workbench (4), and the bottom of the workbench (4) is connected to a driving device, and a lower fixture mechanism (5) for detecting the air tightness of the speaker and flipping and unloading is arranged on the side of the workbench (4), a first roller conveyor belt (11) and a qualified product conveyor belt (12) are installed on the top of the cabinet (1), and a second roller conveyor belt (13) and a defective product conveyor belt (14) are installed on the top of the cabinet (1), and a double roller conveyor belt (13) and a defective product conveyor belt (14) are installed on the top of the cabinet (1). The lower fixture mechanism (5) comprises a lower fixture fixture (501) rotatably connected to the workbench (4), and the lower fixture fixture (501) is internally rotatably connected to a positive and negative threaded rod (502) and a second transmission shaft (503), and the positive and negative threaded rod (502) and the second transmission shaft (503) are transmission-connected by setting a second bevel gear assembly (504), and the second transmission shaft (503) is externally provided with a second The lower fixture (501) is provided with two sets of linkage rods (506) movably mounted inside, and the two sets of linkage rods (506) are symmetrically arranged about the center of the second gear (505), and the side of the linkage rod (506) is provided with a rack (507) matching the second gear (505), one end of the linkage rod (506) is provided with a limit rod (508), and the outer sleeve of the limit rod (508) is provided with a spring (509), and the positive and negative threaded rods (5 02) and the second transmission shaft (503) are symmetrically arranged in two groups inside the lower jig tooling (501), and the external threads of the two groups of positive and negative threaded rods (502) are connected with four groups of sleeves (510), and closing plates (513) are symmetrically arranged at both ends of the four groups of sleeves (510), and the sides of the multiple groups of the sleeves (510) are all provided with limit blocks (511), and the interior of the lower jig tooling (501) is provided with a limit groove (512) matching the limit block (511).

2. A fully automatic automobile horn automatic detection device according to claim 1, characterized in that: The lower fixture mechanism (5) is provided with four groups, and the four groups of lower fixture mechanisms (5) are evenly distributed on the side of the workbench (4); the side of the workbench (4) is rotatably connected with four groups of first transmission shafts (6), and the four groups of first transmission shafts (6) correspond to the four groups of lower fixture mechanisms (5); the first transmission shafts (6) and the lower fixture mechanism (5) are transmission-connected by arranging a first bevel gear assembly (7), and the bottoms of the four groups of first transmission shafts (6) are all provided with first gears (8).

3. A fully automatic automobile horn automatic detection device according to claim 2, characterized in that: A first arc-shaped inner gear ring (9) and a second arc-shaped inner gear ring (10) are arranged on the top of the cabinet (1), and the first arc-shaped inner gear ring (9) and the second arc-shaped inner gear ring (10) are arranged symmetrically about the center of the workbench (4), and the first arc-shaped inner gear ring (9), the second arc-shaped inner gear ring (10) and the first gear (8) match.

4. A fully automatic automobile horn automatic detection device according to claim 3, characterized in that: Four groups of second telescopic cylinders (17) are arranged at the bottom of the workbench (4), and fixed frames (18) matching the linkage rods (506) are arranged at the ends of the second telescopic cylinders (17).

5. A fully automatic automobile horn automatic detection device according to claim 4, characterized in that: A first telescopic cylinder (2) is installed on the top of the cabinet (1) by means of a bracket, and an upper jig (3) is installed on the bottom of the first telescopic cylinder (2), and the upper jig (3) is connected to an air tightness detection device.

Images