Audio automatic test equipment

Abstract

The present invention discloses an audio automatic test device, aiming to provide an audio automatic test device with high automation, good sound insulation effect and reduced labor cost. The present invention includes a test box, a product carrier and a transfer mechanism, wherein the transfer mechanism is arranged around the test box, the product carrier is provided with a mounting groove adapted to the product, the test box includes a soundproof box, a positioning component and a test component, the positioning component is arranged in the soundproof box and cooperates with the transfer mechanism, the test component is connected to the inner wall of the soundproof box, the transfer mechanism drives the product carrier to flow into the positioning component, and after the test component tests the product, the positioning component cooperates with the transfer mechanism to make the product flow out of the soundproof box. The present invention is applied to the technical field of audio testing of electronic products.

Description

Technical Field

[0001] The present invention relates to the technical field of audio testing of electronic products, and in particular to an automatic audio testing device. Background Art

[0002] In recent years, electronic products have been innovated faster and faster, the number of projectors owned by users has increased, and the scope of application has become wider and wider. The acoustics of the projector and the noise from the cooling fan will affect the consumer's experience. Therefore, during the production and assembly process, it is necessary to test the performance of the projector to ensure that the product performance can meet the requirements.

[0003] In the projector testing industry, product sampling and placement are basically done manually. Deviations are prone to occur when manually sampling and placing products, resulting in manual re-inspection and adjustment before acoustic testing, which reduces the degree of automation of the production line and increases labor costs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an audio automatic testing device with high automation, good sound insulation effect and reduced labor costs.

[0005] The technical solution adopted by the present invention is: the present invention includes a test box, a product carrier and a transfer mechanism, the transfer mechanism is arranged around the test box, the product carrier is provided with an installation groove adapted to the product, the test box includes a soundproof box, a positioning component and a test component, the positioning component is arranged in the soundproof box and cooperates with the transfer mechanism, the test component is connected to the inner wall of the soundproof box, the transfer mechanism drives the product carrier to flow into the positioning component, and after the test component tests the product, the positioning component cooperates with the transfer mechanism to make the product flow out of the soundproof box.

[0006] Further, the positioning assembly includes a base plate and a positioning drive module, a plurality of first electric rails, a probe module, a first in-position sensor and a deceleration sensor arranged on the base plate; the drive module and the plurality of electric rails cooperate with the product carrier for transmission; the probe module is conductively connected with the product carrier; the first in-position sensor is arranged at an end of the base plate away from a product inflow direction; the deceleration sensor is arranged at an end of the base plate close to a product inflow direction; a buffer module is arranged around the first in-position sensor; and the buffer module is press-fitted with the product carrier.

[0007] Furthermore, the positioning drive module includes two groups of first mounting plates, a plurality of first driven wheels, two groups of first transmission belts and a positioning drive device, the two groups of first mounting plates are symmetrically arranged on the base plate, the plurality of driven wheels are correspondingly arranged on the two groups of first mounting plates, connecting rods are arranged at both ends of the two groups of mounting plates, the two groups of connecting rods are correspondingly connected to the first transmission wheels, and the first transmission belts are sequentially wrapped around the plurality of first transmission wheels.

[0008] Furthermore, the two groups of the first mounting plates are both provided with a first waist-shaped hole and a first tensioning block, the first tensioning block is connected to the first waist-shaped hole, and the two groups of the first driven wheels are correspondingly connected to the two groups of the first tensioning blocks.

[0009] Furthermore, the test assembly includes connecting columns, a carrier plate, a test drive device, a sliding seat, a first test piece and a second test piece. One end of several of the connecting columns is connected to the sound insulation box, and the other end of several of the connecting columns is connected to the carrier plate. The test drive device and the sliding seat are both arranged on the carrier plate. The test drive device drives the sliding seat to reciprocate on the carrier plate along the product inflow direction through a second transmission belt. The first test piece is connected to the sliding seat, and the second test piece is fixedly connected to the carrier plate.

[0010] Furthermore, the first test piece is provided with a cylinder, a fixed end of the cylinder is connected to a movable end of the sliding seat, and a protruding end of the cylinder is connected to the test element.

[0011] Furthermore, the soundproof box includes a box frame, two groups of automatic doors, a plurality of soundproof modules and a side door. The two groups of automatic doors are symmetrically arranged on the box frame and cooperate with the transfer mechanism. The plurality of soundproof modules are arranged on the inner wall of the box frame, and the side door is arranged at one end of the box frame.

[0012] Further, the transfer mechanism includes a bracket and a transfer drive device arranged on the bracket, two groups of second mounting plates, a plurality of second electric rails and a second in-place switch, the two groups of second mounting plates are symmetrically arranged on the bracket, a plurality of second driven wheels and a third transmission belt are arranged on the second mounting plate, the third transmission belt is sequentially wound around a plurality of second driven wheels and the output end of the transfer drive device, the output end of the output transfer drive device is connected to a transmission rod, the transmission rod drives the transmission wheel to rotate accordingly, the driven wheel drives the third transmission belt, the plurality of electric rails are arranged on the bracket, and the two groups of in-place switches are respectively arranged at both ends of the bracket.

[0013] Furthermore, the two groups of mounting plates are both provided with second waist-shaped holes and second tensioning blocks, the second tensioning blocks are connected to the second waist-shaped holes, and the two groups of the second driven wheels are correspondingly connected to the two groups of the second tensioning blocks.

[0014] The beneficial effects of the present invention are as follows: the present invention adopts an integrated design of positioning components and test components. After the product flows into the box through the assembly line, it is automatically stopped according to the test position, thereby achieving the effect of rapid positioning test, improving production line efficiency, reducing the need for manual operation and reducing labor costs; adding a tensioning block design to adjust the position of the driven wheel from the outside to achieve the effect of conveyor belt tensioning, which is convenient for daily maintenance and use; using a cylinder to push the test element to change the test position, the multi-point test design improves the accuracy of the experiment and is closer to practical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is another perspective of the structural schematic diagram of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the positioning assembly of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the test structure of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the sound insulation box of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the transfer mechanism of the present invention. DETAILED DESCRIPTION

[0021] like Figures 1 to 6As shown, in this embodiment, the present invention includes a test box, a product carrier 1 and a transfer mechanism 2, the transfer mechanism 2 is arranged around the test box, the product carrier 1 is provided with a mounting groove adapted to the product, the test box includes a soundproof box body 3, a positioning component 4 and a test component 5, the positioning component 4 is arranged in the soundproof box body 3 and cooperates with the transfer mechanism 2, the test component 5 is connected to the inner wall of the soundproof box body 3, the transfer mechanism 2 drives the product carrier 1 to flow into the positioning component 4, after the test component 5 tests the product, the positioning component 4 cooperates with the transfer mechanism 2 to make the product flow out of the soundproof box body 3, the transfer mechanism 2 at the inflow end is provided with an in-place buffer cylinder and a limit sensor, the test box is also provided with a keyboard and mouse assembly, the keyboard and mouse assembly facilitates the detection and control of the test process and test data, and in this embodiment, the test product is a projector. The positioning component 4 and the test component 5 are integrated into a design. After the product flows into the box through the assembly line, it is automatically stopped according to the test position, achieving the effect of rapid positioning test, improving production line efficiency, reducing the need for manual operation and reducing labor costs.

[0022] In this embodiment, the positioning assembly 4 includes a bottom plate 41 and a positioning drive module 42, a plurality of first electric rails 43, a probe module 44, a first in-position sensor 45 and a deceleration sensor 46 arranged on the bottom plate 41. The positioning drive module 42 and the plurality of first electric rails 43 cooperate with the product carrier 1 for transmission. The probe module 44 is conductively connected with the product carrier 1. The first in-position sensor 45 is arranged at one end of the bottom plate 41 away from the product inflow direction. The deceleration sensor 46 is arranged at one end of the bottom plate 41 close to the product inflow direction. A buffer module 47 is arranged around the first in-position sensor 45. The buffer module 47 is pressed against the product carrier 1. The lower end of the product carrier 1 is provided with a plurality of induction bars, and the plurality of induction bars are connected with the first electric rail 43. The two ends of the bottom plate 41 are provided with connection frames matched with the soundproof box 3. The buffer module 47 includes a buffer cylinder and a top pressure block. After the deceleration sensor 46 senses the product carrier 1, it controls the positioning drive module 42 to reduce the speed to avoid excessive displacement of the product carrier 1. After the in-place sensor detects that the product carrier 1 is in place, it controls the positioning drive module 42 to stop moving and the test component 5 starts working. The buffer cylinder lifts the top pressure block, and the top pressure block stops the product carrier 1. The probe module 44 is provided with a probe cylinder to lift the probe block. The sensor coordination control and the buffer module 47 top stop design are adopted, and the product is automatically detected when in place and the blocking action is realized, which improves the degree of automation and reduces manual operation.

[0023] In this embodiment, the positioning drive module 42 includes two groups of first mounting plates 421, a plurality of first driven wheels 422, two groups of first transmission belts 423 and a positioning drive device 424, the two groups of the first mounting plates 421 are symmetrically arranged on the base plate 41, the plurality of the first driven wheels 422 are correspondingly arranged on the two groups of the first mounting plates 421, connecting rods 425 are arranged at both ends of the two groups of the first mounting plates 421, the two groups of the connecting rods 425 are correspondingly connected to the first driven wheels 422, the first transmission belt 423 is sequentially wound around the plurality of the first driven wheels 422, the output end of the positioning drive device 424 is connected to the connecting rod 425 through a belt, and the transmission belt adopts belt drive.

[0024] In this embodiment, the two groups of the first mounting plates 421 are both provided with first waist-shaped holes and first tensioning blocks 426, the first tensioning blocks 426 are connected to the first waist-shaped holes, the two groups of the first driven wheels 422 are correspondingly connected to the two groups of the first tensioning blocks 426, and the first tensioning blocks 426 are provided with adjustment screws, and the adjustment screws are turned to control the up and down movement of the first driven wheels 422 to drive the tensioning effect of the first transmission belt 423. The tensioning block design is added to adjust the position of the driven wheels from the outside to achieve the effect of tensioning the conveyor belt, which is convenient for daily maintenance and use.

[0025] In this embodiment, the test assembly 5 includes a connecting column 51, a carrier plate 52, a test drive device 53, a sliding seat 54, a first test piece 55 and a second test piece 56. One end of several of the connecting columns 51 is connected to the sound insulation box 3, and the other end of several of the connecting columns 51 is connected to the carrier plate 52. The test drive device 53 and the sliding seat 54 are both arranged on the carrier plate 52. The test drive device 53 drives the sliding seat 54 to reciprocate on the carrier plate 52 along the product inflow direction through a second transmission belt 57. The first test piece 55 is connected to the sliding seat 54, and the second test piece 56 is fixedly connected to the carrier plate 52. The second test piece 56 adopts a test microphone, and a chain groove is provided on the carrier plate 52.

[0026] In this embodiment, the first test piece 55 is provided with a cylinder, the fixed end of the cylinder is connected to the movable end of the sliding seat 54, and the extended end of the cylinder is connected to the test element, which is a test microphone. The cylinder is used to push the test element to change the test position, and the multi-point test improves the accuracy of the experiment and is closer to practical application.

[0027] In this embodiment, the soundproof box 3 includes a box frame 31, two groups of automatic doors 32, a plurality of soundproof modules 33 and a side door 34. The two groups of automatic doors 32 are symmetrically arranged on the box frame 31 and cooperate with the transfer mechanism 2. A plurality of soundproof modules 33 are arranged on the inner wall of the box frame 31. The side door 34 is arranged at one end of the box frame 31. The automatic door 32 is provided with an L-shaped track. A third test piece is also provided on the soundproof box 3. The third test piece detects the side of the product. A plurality of soundproof modules 33 adopt multi-layer sound insulation technology to improve the sound insulation and shock absorption effect.

[0028] In this embodiment, the transfer mechanism 2 includes a bracket 21 and a transfer drive device 22 arranged on the bracket 21, two groups of second mounting plates 23, a plurality of second electric rails 24 and a second in-position switch 25. The two groups of the second mounting plates 23 are symmetrically arranged on the bracket 21. The second mounting plates 23 are provided with a plurality of second driven wheels 26 and a third transmission belt 27. The third transmission belt 27 is sequentially wound around a plurality of the second driven wheels 26 and the output end of the transfer drive device 22. The output end of the transfer drive device 22 is connected to a transmission rod 28, and the transmission rod 28 drives the second driven wheel 26 to rotate accordingly. The second driven wheel 26 drives the third transmission belt 27. The plurality of electric rails are arranged on the bracket 21, and the two groups of in-position switches are respectively arranged at both ends of the bracket 21.

[0029] In this embodiment, the two groups of the second mounting plates 23 are both provided with second waist-shaped holes and second tensioning blocks 29, the second tensioning blocks 29 are connected to the second waist-shaped holes, the two groups of the second driven wheels 26 are correspondingly connected with the two groups of the second tensioning blocks 29, and the second tensioning blocks 29 are provided with adjustment screws, the adjustment screws are turned to push the third tensioning blocks, and the third tensioning blocks drive the second driven wheels 26 to move left and right to achieve the effect of tensioning the second transmission belt 57. The tensioning block design is added to adjust the position of the driven wheel from the outside to achieve the effect of tensioning the conveyor belt, which is convenient for daily maintenance and use.

[0030] Working principle of the present invention:

[0031] The product is placed in the installation slot in the test carrier, and before being transferred from the previous process to the soundproof box 3 by the transfer mechanism 2, the automatic door 32 rises and the product carrier 1 enters the soundproof box 3 driven by the transfer mechanism.

[0032] After the product carrier 1 enters the soundproof box 3, the positioning drive module 42 drives the product carrier 1 to continue moving forward. When the product carrier 1 passes the deceleration sensor 46, the deceleration sensor 46 feedback controls to reduce the speed of the positioning drive module 42. The product carrier 1 slowly moves forward inside the soundproof box 3. Then the product carrier 1 and the buffer module 47 are pressed against each other. The first in-place sensor 45 detects that the product carrier 1 has arrived at the test station. The first in-place sensor 45 feedback controls to stop the operation of the positioning drive module 42, the probe module 44 is connected to the product, and the test step starts.

[0033] After the test is completed, the automatic door 32 on the other side of the inflow end opens, the buffer module 47 retracts, and the positioning drive module 42 starts, driving the tested product carrier 1 to move in the product outflow direction and move to the transfer mechanism set at the outflow end. When the product carrier 1 contacts the two second in-position switches 25, the product sound insulation test is completed and the next product test is carried out.

[0034] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. An audio automatic test device, characterized in that: The invention comprises a test box, a product carrier (1) and a transfer mechanism (2), wherein the transfer mechanism (2) is arranged around the test box, the product carrier (1) is provided with a mounting groove adapted to the product, the test box comprises a soundproof box body (3), a positioning component (4) and a test component (5), the positioning component (4) is arranged in the soundproof box body (3) and cooperates with the transfer mechanism (2), the test component (5) is connected to the inner wall of the soundproof box body (3), the transfer mechanism (2) drives the product carrier (1) to flow into the positioning component (4), and after the test component (5) tests the product, the positioning component (4) cooperates with the transfer mechanism (2) to move the product from the test box body (3) to the test box body (5). The soundproof box (3) flows out; the positioning assembly (4) includes a bottom plate (41) and a positioning drive module (42) arranged on the bottom plate (41), a plurality of first electric rails (43), a probe module (44), a first in-position sensor (45) and a deceleration sensor (46); the positioning drive module (42) and the plurality of first electric rails (43) cooperate with the product carrier (1) for transmission; the probe module (44) is conductively connected to the product carrier (1); the first in-position sensor (45) is arranged at one end of the bottom plate (41) away from the product inflow direction; the deceleration sensor (46) is arranged at one end of the bottom plate (41) close to the product inflow direction; and the first in-position sensor (45) is arranged at one end of the bottom plate (41) close to the product inflow direction. A buffer module (47) is arranged around the position sensor (45), and the buffer module (47) is press-fitted with the product carrier (1); the positioning drive module (42) comprises two groups of first mounting plates (421), a plurality of first driven wheels (422), two groups of first transmission belts (423) and a positioning drive device (424); the two groups of the first mounting plates (421) are symmetrically arranged on the bottom plate (41); the plurality of first driven wheels (422) are correspondingly arranged on the two groups of the first mounting plates (421); connecting rods (425) are arranged at both ends of the two groups of the first mounting plates (421); the two groups of the connecting rods (425) are correspondingly connected to the first driven wheels (422). Then, the first transmission belt (423) is wound around a plurality of the first driven wheels (422) in sequence, the positioning drive device (424) is arranged on the bottom plate (41), and the output end of the positioning drive device (424) is connected to the connecting rod (425); the soundproof box (3) comprises a box frame (31), two groups of automatic doors (32), a plurality of soundproof modules (33) and a side door (34), the two groups of automatic doors (32) are symmetrically arranged on the box frame (31) and cooperate with the transfer mechanism (2), the plurality of soundproof modules (33) are arranged on the inner wall of the box frame (31), and the side door (34) is arranged at one end of the box frame (31);The transfer mechanism (2) comprises a bracket (21), a transfer drive device (22) arranged on the bracket (21), two groups of second mounting plates (23), a plurality of second electric rails (24) and a second in-position switch (25), the two groups of second mounting plates (23) being symmetrically arranged on the bracket (21), a plurality of second driven wheels (26) and a third transmission belt (27) being arranged on the second mounting plate (23), the third transmission belt (27) being wound around the plurality of second driven wheels (26) and the output end of the transfer drive device (22) in sequence, the output end of the transfer drive device (22) being connected to a transmission rod (28), the transmission rod (28) correspondingly driving the second driven wheels (26) to rotate, the second driven wheels (26) driving the third transmission belt (27), the plurality of second electric rails (24) being arranged on the bracket (21), and the two groups of second in-position switches (25) being arranged at both ends of the bracket (21) respectively. ; 2. The audio automatic test equipment according to claim 1, characterized in that: The two groups of the first mounting plates (421) are both provided with a first waist-shaped hole and a first tensioning block (426); the first tensioning block (426) is connected to the first waist-shaped hole; and the two groups of the first driven wheels (422) are correspondingly connected to the two groups of the first tensioning blocks (426).

3. The audio automatic test equipment according to claim 1, characterized in that: The test assembly (5) comprises a connecting column (51), a carrier plate (52), a test drive device (53), a sliding seat (54), a first test piece (55) and a second test piece (56); one end of a plurality of the connecting columns (51) is connected to the sound insulation box (3); the other ends of a plurality of the connecting columns (51) are connected to the carrier plate (52); the test drive device (53) and the sliding seat (54) are both arranged on the carrier plate (52); the test drive device (53) drives the sliding seat (54) to reciprocate on the carrier plate (52) along the product inflow direction via a second transmission belt (57); the first test piece (55) is connected to the sliding seat (54); and the second test piece (56) is fixedly connected to the carrier plate (52).

4. The audio automatic test equipment according to claim 3, characterized in that: The first test piece (55) is provided with a cylinder, a fixed end of the cylinder is connected to a movable end of the sliding seat (54), and a protruding end of the cylinder is connected to a test element.

5. The audio automatic test equipment according to claim 1, characterized in that: The two groups of the second mounting plates (23) are both provided with a second waist-shaped hole and a second tensioning block (29); the second tensioning block (29) is connected to the second waist-shaped hole; and the two groups of the second driven wheels (26) are correspondingly connected to the two groups of the second tensioning blocks (29).

Images