A horn frequency response testing device

Abstract

This utility model relates to the field of testing fixture technology, and more particularly to a speaker frequency response testing device. The utility model includes a product moving mechanism, a barcode scanning mechanism, a probe power supply mechanism, a frequency response testing mechanism, and a control module. The product moving mechanism drives the carrier positioning block and the multi-station product carrier through a lead screw module, achieving precise positioning and magnetic locking using positioning pins and magnets. The barcode scanning mechanism reads the product's QR code using a barcode scanner with adjustable height and tilt angle. The probe power supply mechanism ensures stable contact between the probe and the product for power supply through a first linear slide rail, a probe cylinder, and a buffer. The frequency response testing mechanism ensures stable contact between the frequency response test head and the product through a frequency response cylinder, double linear slide rails, and spring elastic connection. The control module coordinates the actions of each mechanism according to a preset sequence, realizing an automated testing process, including barcode scanning, power supply, frequency response testing, and result display, verifying the equipment's operational stability and testing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, and in particular to a speaker frequency response testing device. Background Technology

[0002] In the field of product testing in modern manufacturing, traditional testing equipment relies on manual labor to complete core processes such as barcode scanning, clamping, testing, and result judgment. This results in testing efficiency, quality stability, and automation levels that are insufficient to meet the needs of industrial upgrading. Currently, the industry typically adopts a single-station independent testing mode, which can only process 1 piece of product at a time. Taking the testing of a certain electronic component as an example, the manual barcode scanning, placement, and clamping process is quite cumbersome. Furthermore, there are obvious breaks in the manual operation process, such as barcode scanning, clamping, clamping, and component removal, which restricts the improvement of production capacity.

[0003] Manual operation is prone to errors, directly impacting test quality. For example, when manually scanning barcodes, variations in the operator's grip angle and distance can lead to an error rate. Similarly, when manually pressing the product, fluctuations in applied force and contact position deviations can affect the stability of the electrical connection between the probe and pins, causing abnormal test data. Furthermore, test results rely on manual recording, which carries the risk of omissions and errors. The inability to automatically correlate test data with barcode information makes the quality traceability process cumbersome and inefficient, failing to meet the demands of real-time monitoring and remote management of production data in the industrial age.

[0004] The high frequency of repetitive manual operations in existing equipment leads to a higher incidence of wrist strain among operators compared to other positions, posing a significant ergonomic hazard. With the rapid development of industries such as consumer electronics and new energy, there is an urgent need to integrate mechanical structure innovation with intelligent control technology to achieve batch testing of multiple products, automated barcode scanning, and standardized processes, breaking through the bottlenecks of low efficiency, unstable quality, and insufficient automation in existing technologies.

[0005] In summary, the problems of low testing efficiency, unstable quality, and insufficient automation in existing technologies have become key bottlenecks restricting the improvement of quality and efficiency in the manufacturing industry. Utility Model Content

[0006] The purpose of this utility model is to provide a horn frequency response testing device. Through integrated carrier design, automated barcode scanning, and optimized pneumatic testing system, it can achieve batch testing of multiple products in a single run and standardized control of the entire process, significantly improving testing efficiency and quality consistency, and meeting the high-efficiency and intelligent production needs of modern manufacturing.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a speaker frequency response testing device, comprising a frame, wherein the upper surface of the frame is provided with a product moving mechanism, a barcode scanning mechanism, a probe power supply mechanism, and a frequency response testing mechanism.

[0008] The scanning mechanism is located at the middle of the product moving mechanism, and the probe power supply mechanism and the frequency response testing mechanism are located at the end of the product moving mechanism and are parallel to the product moving mechanism.

[0009] Product moving mechanism: It consists of a horizontally arranged lead screw module, a carrier positioning block installed on the top of the lead screw module, and a multi-station product carrier that can be detachably fixed on the carrier positioning block. The axial direction of the lead screw module is divided into a barcode scanning station area and a testing station area.

[0010] Scanning mechanism: set in the scanning station area, including an L-shaped fixed base fixed to the surface of the frame, a support rod vertically installed on the L-shaped fixed base, a conversion block set above the support rod, a crossbar vertically connected to the support rod through the conversion block, and a barcode scanner fixed to the end of the crossbar and facing the moving path of the product carrier.

[0011] The probe power supply mechanism includes a bottom support and a probe cylinder arranged parallel to the lead screw module. A first linear slide rail is arranged on the bottom support. A probe sliding plate is provided on the first linear slide rail. A probe mounting seat is installed on the probe sliding plate. A probe is fixedly installed at the front end of the probe mounting seat. The probe cylinder drives the probe sliding plate to slide, thereby driving the probe in the probe mounting seat to move.

[0012] Frequency response testing mechanism: includes a bottom support and a frequency response cylinder arranged parallel to the lead screw module. A second linear slide rail and a third linear slide rail are arranged on the bottom support. A frequency response sliding plate is provided on the second linear slide rail, and a third linear slide rail is provided on the frequency response sliding plate. A frequency response test head fixing plate and a frequency response test head are installed on the third linear slide rail. The frequency response test head fixing plate is fixed to the end of the third linear slide rail away from the product. The frequency response test head is elastically connected to the frequency response test head fixing plate. The frequency response cylinder drives the frequency response sliding plate to slide, thereby driving the frequency response test head on the frequency response test head fixing plate to move.

[0013] The probe power supply mechanism and the frequency response testing mechanism are arranged side by side in the testing station area, and the movement direction of the probe and the frequency response testing head is perpendicular to the product movement path.

[0014] The testing equipment also includes a control module, which is connected to the lead screw module, barcode scanner, probe cylinder, and frequency response cylinder respectively. The control module is used to control the action sequence and parameter settings of each component to realize an automated testing process. The control module includes a "start button", an "end button", and status indicator lights.

[0015] The lead screw module drives the carrier positioning block, which in turn drives the product carrier to move to the test station. The carrier is then sequentially scanned by the barcode scanning mechanism, powered by the probe power supply mechanism, and subjected to frequency response testing by the frequency response testing mechanism. Each mechanism operates in a coordinated manner according to a preset timing sequence.

[0016] Preferably, the product carrier includes a fixture body, the top surface of which is provided with 8 product positioning slots, and the fixture body is provided with a product pressure plate that can be flipped and pressed onto the product positioning slots.

[0017] Preferably, the upper surface of the vehicle positioning block is provided with at least two positioning pins, two first magnets, and a vehicle positioning support plate whose bottom is connected to the slider of the lead screw module;

[0018] The bottom of the fixture body is provided with a third magnet that corresponds to the first magnet in the carrier positioning block. The two magnets attract each other, so that the fixture body and the carrier positioning block form a magnetic locking.

[0019] The product carrier is equipped with a positioning sleeve that engages with the positioning pin.

[0020] Preferably, a movable hinge is provided on the top side of the fixture body, and the product pressure plate is fixedly mounted on the fixture body by the movable hinge.

[0021] Preferably, the product pressure plate is a metal pressure plate that can be attracted by a magnet or has a magnet embedded in it, and a second magnet is provided on the top side of the fixture body to form a magnetic closing with the product pressure plate provided on the top of the fixture body.

[0022] Preferably, the conversion block of the scanning mechanism is a lifting slider with locking bolts fitted outside the support rod, which can adjust the vertical height of the barcode scanner.

[0023] Preferably, the scanning mechanism further includes a barcode scanner fixing block, wherein the barcode scanner is fixed to the crossbar by the barcode scanner fixing block, and the barcode scanner fixing block of the scanning mechanism is a slider with locking bolts fitted outside the crossbar, which can adjust the pitch angle of the barcode scanner.

[0024] Preferably, the structure of the frequency response test head further includes a spring, and the frequency response test head and the frequency response test head fixing plate are elastically connected by the spring.

[0025] Preferably, the probe power supply mechanism further includes a probe buffer, which is disposed on the bottom support near the product side and located on both sides of the probe sliding plate; correspondingly, probe buffer initiation blocks are disposed on both sides of the probe sliding plate. When the probe cylinder drives the probe sliding plate to slide and thus drives the probe in the probe mounting base to move, the probe buffer initiation blocks will touch the probe buffer during the movement path of the probe sliding plate; the frequency response testing mechanism further includes a frequency response buffer, which is disposed on the bottom support near the product side and located on both sides of the frequency response sliding plate; correspondingly, frequency response buffer initiation blocks are disposed on both sides of the frequency response sliding plate. When the frequency response cylinder drives the frequency response sliding plate to slide and thus drives the frequency response test head on the frequency response test head fixing plate to move, the frequency response buffer initiation blocks will touch the frequency response buffer during the movement path of the frequency response sliding plate.

[0026] Preferably, the testing equipment further includes a control module, which is connected to the lead screw module, barcode scanner, probe cylinder, and frequency response cylinder respectively, and is used to control the action sequence and parameter settings of each component to realize an automated testing process; the control module includes a "start button", an "end button" and status indicator lights.

[0027] In summary, the beneficial effects of this utility model are as follows:

[0028] 1. Multiple products can be tested at once (up to 8 PCS at a time via product carrier), and combined with automatic barcode scanning, the testing efficiency is greatly improved, several times higher than the efficiency of traditional manual testing of a single product.

[0029] 2. Mechanical positioning and elastic contact design (magnetic adsorption positioning, spring elastic contact) reduce human operation errors and ensure accurate and stable test data.

[0030] 3. Automated workflows reduce manual intervention, lower labor intensity, and adapt to the needs of large-scale production. The introduction of high-precision component matching (lead screw module, positioning pins and positioning sleeves) and control modules further enhances the automation and accuracy of the equipment, ensuring efficient and stable testing. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the speaker frequency response testing device of this utility model;

[0032] Figure 2 This is a schematic diagram of the moving mechanism of the product of this utility model;

[0033] Figure 3 This is a structural schematic diagram of the carrier positioning block in the moving mechanism of this utility model product;

[0034] Figure 4This is a structural schematic diagram of the product carrier in the product moving mechanism of this utility model from the first perspective;

[0035] Figure 5 This is a structural schematic diagram of the product carrier in the product moving mechanism of this utility model from a second perspective;

[0036] Figure 6 This is a structural schematic diagram of the product carrier in the product moving mechanism of this utility model from a third perspective;

[0037] Figure 7 This is a schematic diagram of the scanning mechanism of this utility model;

[0038] Figure 8 This is a schematic diagram of the probe power supply mechanism of this utility model;

[0039] Figure 9 This is a schematic diagram of the frequency response testing mechanism of this utility model;

[0040] Explanation of reference numerals in the attached drawings: 1. Product moving mechanism; 11. Lead screw module; 12. Carrier positioning block; 121. Positioning pin; 122. First magnet; 123. Carrier positioning support plate; 13. Product carrier; 131. Positioning sleeve; 132. Fixture body; 133. Movable hinge; 134. Second magnet; 135. Product pressure plate; 136. Third magnet; 2. Scanning mechanism; 21. L-shaped fixed base; 22. Support rod; 23. Conversion block; 24. Crossbar; 25. Barcode scanner fixing block; 26. Barcode scanner; 3. Probe power supply mechanism; 31. Probe; 32. Probe mounting base; 33. Probe cylinder; 34. Probe buffer; 35. First linear slide rail; 4. Frequency response testing mechanism; 41. Frequency response testing head; 42. Spring; 43. Frequency response cylinder; 44. Second linear slide rail; 45. Third linear slide rail; 46. Frequency response buffer. Detailed Implementation

[0041] To explain the technical content, objectives, and effects of this utility model in detail, the following description is provided in conjunction with the embodiments, but this does not constitute a limitation on the scope of protection of this utility model.

[0042] See Figures 1-9 The details of this utility model are as follows:

[0043] Overall Structure: A speaker frequency response testing device includes a frame. The upper surface of the frame is equipped with a product moving mechanism 1, a barcode scanning mechanism 2, a probe power supply mechanism 3, and a frequency response testing mechanism 4. The barcode scanning mechanism 2 is located at the middle of the product moving mechanism 1, and the probe power supply mechanism 3 and the frequency response testing mechanism 4 are arranged parallel to each other at the ends of the product moving mechanism 1. The testing device also includes a control module, which is connected to a lead screw module 11, a barcode scanner 26, a probe cylinder 33, and a frequency response cylinder 43. The control module controls the action sequence and parameter settings of each component to achieve an automated testing process. The control module includes a "start button," an "end button," and status indicator lights. The lead screw module 11 drives the carrier positioning block 12, which in turn drives the product carrier 13 to move to the testing station. The product carrier then sequentially undergoes barcode scanning by the barcode scanning mechanism 2, power supply by the probe power supply mechanism 3, and frequency response testing by the frequency response testing mechanism 4. Each mechanism operates in a coordinated manner according to a preset timing sequence.

[0044] Product moving mechanism 1: Composed of a horizontally arranged lead screw module 11, a carrier positioning block 12 mounted on the top of the lead screw module 11, and a multi-station product carrier 13 detachably fixed to the carrier positioning block 12. The upper surface of the carrier positioning block 12 is provided with at least two positioning pins 121, two first magnets 122, and a carrier positioning support 123 connected at the bottom to the slider of the lead screw module 11; the bottom of the fixture body 132 is provided with a third magnet 136 corresponding to the first magnets 122 in the carrier positioning block, and the fixture body 132 and the carrier positioning block 12 form a magnetic locking; the product carrier 13 is provided with a positioning sleeve 131 that cooperates with the positioning pins 121. The product carrier 13 includes a fixture body 132, the top surface of which is provided with eight product positioning slots, and a product pressure plate 135 that can be flipped and pressed onto the product positioning slots on the fixture body 132. A movable hinge 133 is provided on the top side of the fixture body 132, and the product pressure plate 135 is fixedly mounted on the fixture body 132 via the movable hinge 133. The product pressure plate 135 is a metal pressure plate that can be attracted by a magnet or has a magnet embedded in it. A second magnet 134 is provided on the top side of the fixture body 132, which forms a magnetic closing with the product pressure plate 135 located on the top of the fixture body 132.

[0045] The scanning mechanism 2 includes an L-shaped fixed base 21 fixed to the surface of the frame, a support rod 22 vertically mounted on the L-shaped fixed base 21, a conversion block 23 above the support rod 22, a crossbar 24 vertically connected to the support rod 22 via the conversion block 23, and a barcode scanner 26 fixed to the end of the crossbar 24 and facing the moving path of the product carrier. The conversion block 23 of the scanning mechanism 2 is a lifting slider with locking bolts fitted around the support rod 22, which can adjust the vertical height of the barcode scanner to accommodate the scanning needs of product carriers of different sizes. The scanning mechanism 2 also includes a barcode scanner fixing block 25, through which the barcode scanner 26 is fixed to the crossbar 24. The barcode scanner fixing block 25 is a slider with locking bolts fitted around the crossbar 24, which can adjust the pitch angle of the barcode scanner to ensure that the barcode scanner can accurately read the QR codes of the products inside the product carrier 13.

[0046] The probe power supply mechanism 3 includes a bottom support and a probe cylinder 33 arranged parallel to the lead screw module 11. A first linear slide rail 35 is arranged on the bottom support, and a probe sliding plate is provided on the first linear slide rail 35. A probe mounting seat 32 is mounted on the probe sliding plate, and a probe 31 is fixedly mounted at the front end of the probe mounting seat 32. The probe cylinder 33 drives the probe sliding plate to slide, thereby driving the probe 31 in the probe mounting seat 32 to move. The probe power supply mechanism 3 also includes a probe buffer 34, which is located on one end of the bottom support near the product side and on both sides of the probe sliding plate. Correspondingly, probe buffer trigger blocks are provided on both sides of the probe sliding plate. When the probe cylinder 33 drives the probe sliding plate to slide, thereby driving the probe 31 in the probe mounting seat 32 to move, the probe buffer trigger blocks will touch the probe buffer 34 during the movement path of the probe sliding plate.

[0047] Frequency response testing mechanism 4 includes a bottom support and a frequency response cylinder 43 arranged parallel to the lead screw module 11. A second linear slide rail 44 and a third linear slide rail 45 are arranged on the bottom support. A frequency response sliding plate is provided on the second linear slide rail 44, and a third linear slide rail 45 is provided on the frequency response sliding plate. A frequency response test head fixing plate and a frequency response test head 41 are installed on the third linear slide rail 45. The frequency response test head fixing plate is fixed to the end of the third linear slide rail 45 away from the product. The frequency response test head 41 and the frequency response test head fixing plate are elastically connected by a spring 42. The frequency response cylinder 43 drives the frequency response sliding plate to slide, thereby driving the frequency response test head 41 on the frequency response test head fixing plate to move. The frequency response testing mechanism 4 also includes a frequency response buffer 46, which is located on one end of the bottom bracket near the product side and on both sides of the frequency response sliding plate. Correspondingly, frequency response buffer initiation blocks are provided on both sides of the frequency response sliding plate. When the frequency response cylinder 43 drives the frequency response sliding plate to slide and thus drives the frequency response test head 41 on the frequency response test head fixing plate to move, the frequency response buffer initiation blocks will touch the frequency response buffer 46 during the movement path of the frequency response sliding plate.

[0048] As a preferred embodiment of this utility model, the control module integrates a PLC controller and an HMI human-machine interface. The PLC obtains the position signal of the lead screw module through the encoder and controls the barcode scanner (26) to continuously scan the code while the carrier is moving, and synchronously triggers the probe power supply mechanism (3) and the frequency response testing mechanism (4) to coordinate their actions at the test station.

[0049] The assembly process of this utility model's speaker frequency response testing equipment is as follows:

[0050] Product moving mechanism assembly: The lead screw module 11 is fixedly installed to ensure its levelness and stability. The positioning pin 121 of the carrier positioning block 12 is precisely aligned and fixed with the equipment base, and the first magnet 122 is embedded in the appropriate position of the carrier positioning support 123. The fixture body 132 of the product carrier 13 is machined and formed, and the positioning sleeve 131, movable hinge 133, second magnet 134, product pressure plate 135 and third magnet 136 are assembled according to the design to ensure that the product pressure plate 135 can be flexibly attracted and released by the second magnet 134, and the third magnet 136 at the bottom of the fixture body 132 is reliably attracted to the first magnet 122 of the carrier positioning block 12.

[0051] Scanning mechanism installation: The L-shaped fixed base 21 is securely installed in the corresponding position of the equipment. The support rod 22 is vertically fixed to the base. The conversion block 23 is sleeved on the support rod 22 and locked. The crossbar 24 is vertically connected to the support rod 22 through the conversion block 23. The barcode gun fixing block 25 is sleeved on the crossbar 24. After adjusting the pitch angle, it is locked. The barcode gun 26 is securely fixed on the barcode gun fixing block 25. Ensure that the barcode gun 26 is aligned with the moving path of the product carrier 13. Adjust the height and angle to ensure accurate barcode scanning.

[0052] Probe power supply mechanism debugging: The first linear slide rail 35 is fixedly mounted on the bottom bracket to ensure straightness. The probe mounting base 32 is connected to the slider of the first linear slide rail 35. The probe cylinder 33 is fixed on the bottom bracket, and the piston rod is connected to the probe mounting base 32. The probe buffer 34 is mounted on the bottom bracket at the end closest to the product side, located on both sides of the probe sliding plate. Debug the probe cylinder 33 to ensure that the probe 31 smoothly contacts the product for power supply. When the probe sliding plate slides to a certain limit, the probe buffer initiator block can accurately touch the probe buffer 34.

[0053] Frequency response testing mechanism debugging: The second linear slide rail 44 and the third linear slide rail 45 are installed and fixed on the bottom bracket. The frequency response cylinder 43 is fixed on the bottom bracket, and the connection structure between the piston rod and the frequency response test head 41 is assembled. The spring 42 is installed between the frequency response test head 41 and the frequency response test head fixing plate. The frequency response buffer 46 is installed on the bottom bracket at one end near the product side, located on both sides of the frequency response sliding plate. The frequency response cylinder 43 is debugged. The frequency response cylinder 43 drives the frequency response sliding plate to slide, thereby driving the frequency response test head 41 on the frequency response test head fixing plate to move. After the frequency response test head 41 is pushed out, it elastically contacts the product through the compressed spring 42, maintaining stable contact by the spring force. At the same time, under the action of force, the frequency response test head 41 will slide on the third linear slide rail 45. When the frequency response sliding plate slides to a certain limit, the frequency response buffer initiator block can accurately touch the frequency response buffer 46.

[0054] Workflow Verification: The speaker product is manually placed into the product carrier 13, where the product pressure plate 135 is secured by the second magnet 134. The carrier is placed on the carrier positioning block 12, with the positioning pin 121 ensuring accurate positioning. The first magnet 122 and the third magnet 136 are securely attached. Pressing the "Start" button activates the lead screw module 11, moving the carrier and allowing the barcode scanner 26 to scan codes sequentially. After scanning, the device enters the testing position. The frequency response cylinder 43 of the frequency response testing mechanism 4 extends, and the frequency response test head 41 elastically contacts the product via the compression spring 42. Simultaneously, the probe cylinder 33 of the probe power supply mechanism 3 drives the probe 31 to contact the product and supply power. The test is completed, and the test result is displayed on the status indicator lights of the control module (green for OK, red for NG). The carrier is removed, the product is taken out, and the operation is repeated to verify stable equipment operation and testing accuracy.

[0055] In summary, this utility model achieves automation, efficiency, and precision in horn frequency response testing through the coordinated operation of various mechanisms, and has significant industrial application value.

[0056] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A speaker frequency response testing device, comprising a frame, wherein a product moving mechanism (1), a barcode scanning mechanism (2), a probe power supply mechanism (3), and a frequency response testing mechanism (4) are disposed on the upper surface of the frame, characterized in that, The scanning mechanism (2) is located at the middle of the product moving mechanism (1), and the probe power supply mechanism (3) and the frequency response testing mechanism (4) are located at the end of the product moving mechanism (1) and parallel to the product moving mechanism (1). Product moving mechanism (1): It consists of a horizontally arranged screw module (11), a carrier positioning block (12) installed on the top of the screw module (11), and a multi-station product carrier (13) that can be detachably fixed on the carrier positioning block (12). The axial direction of the screw module (11) is divided into a barcode scanning station area and a test station area. The scanning mechanism (2) is set in the scanning station area and includes an L-shaped fixed base (21) fixed to the surface of the frame, a support rod (22) vertically installed on the L-shaped fixed base (21), a conversion block (23) is set above the support rod (22), a crossbar (24) is vertically connected to the support rod (22) through the conversion block (23), and a barcode scanner (26) fixed to the end of the crossbar (24) and facing the moving path of the product carrier. The probe power supply mechanism (3) includes a bottom support and a probe cylinder (33) arranged parallel to the lead screw module (11). A first linear slide rail (35) is arranged on the bottom support. A probe sliding plate is provided on the first linear slide rail (35). A probe mounting seat (32) is installed on the probe sliding plate. A probe (31) is fixedly provided at the front end of the probe mounting seat (32). The probe cylinder (33) drives the probe sliding plate to slide, thereby driving the probe (31) in the probe mounting seat (32) to move. Frequency response testing mechanism (4): includes a bottom support and a frequency response cylinder (43) arranged parallel to the lead screw module (11). A second linear slide rail (44) and a third linear slide rail (45) are arranged on the bottom support. A frequency response sliding plate is provided on the second linear slide rail (44), and a third linear slide rail (45) is provided on the frequency response sliding plate. A frequency response test head fixing plate and a frequency response test head (41) are installed on the third linear slide rail (45). The frequency response test head fixing plate is fixed in the third linear slide rail (45) at the end away from the product. The frequency response test head (41) is elastically connected to the frequency response test head fixing plate. The frequency response cylinder (43) drives the frequency response sliding plate to slide, thereby driving the frequency response test head (41) on the frequency response test head fixing plate to move. The probe power supply mechanism (3) and the frequency response testing mechanism (4) are arranged side by side in the testing station area, and the movement direction of the probe (31) and the frequency response testing head (41) is perpendicular to the product movement path. The lead screw module (11) drives the carrier positioning block (12), which in turn drives the product carrier (13) to move to the test station, and sequentially performs frequency response testing by scanning the code by the scanning mechanism (2), powering the probe power supply mechanism (3), and the frequency response testing mechanism (4).

2. The horn frequency response testing device of claim 1, wherein: The product carrier (13) includes a fixture body (132), the top surface of which is provided with 8 product positioning slots, and the fixture body (132) is provided with a product pressure plate (135) that can be flipped and pressed onto the product positioning slots.

3. The device of claim 2, wherein: The upper surface of the vehicle positioning block (12) is provided with at least two positioning pins (121), two first magnets (122) and a vehicle positioning support plate (123) connected to the slider of the lead screw module (11) at the bottom. The bottom of the fixture body (132) is provided with a third magnet (136) corresponding to the first magnet (122) in the carrier positioning block (12). The two magnets attract each other, so that the fixture body (132) and the carrier positioning block (12) form a magnetic locking. The product carrier (13) is provided with a positioning sleeve (131) that cooperates with the positioning pin (121).

4. The frequency response test device for a loudspeaker of claim 3, wherein: The top side of the fixture body (132) is provided with a movable hinge (133), and the product pressure plate (135) is fixedly mounted on the fixture body (132) by the movable hinge (133).

5. The device of claim 4, wherein: The product pressure plate (135) is a metal pressure plate that can be attracted by a magnet or has a magnet embedded in it. A second magnet (134) is provided on the top side of the fixture body (132) and forms a magnetic closing with the product pressure plate (135) provided on the top of the fixture body (132).

6. The frequency response test device of any one of claims 1-5, wherein: The conversion block (23) of the scanning mechanism (2) is a lifting slider with locking bolts that is sleeved on the support rod (22) and can adjust the vertical height of the barcode scanner.

7. The device of claim 6, wherein: The scanning mechanism (2) also includes a barcode gun fixing block (25). The barcode gun (26) is fixed to the crossbar (24) by the barcode gun fixing block (25). The barcode gun fixing block (25) of the scanning mechanism (2) is a slider with locking bolts that is sleeved on the crossbar (24) and can adjust the pitch angle of the barcode gun.

8. The horn frequency response testing device of any one of claims 1 or 2 or 3 or 4 or 5 or 7, wherein: The structure of the frequency response test head (41) also includes a spring (42), and the frequency response test head (41) and the frequency response test head fixing plate are elastically connected by the spring (42).

9. The device of claim 8, wherein: The probe power supply mechanism (3) also includes a probe buffer (34), which is located on the bottom support near the product side and on both sides of the probe sliding plate. Correspondingly, probe buffer initiation blocks are provided on both sides of the probe sliding plate. When the probe cylinder (33) drives the probe sliding plate to slide and then drives the probe (31) in the probe mounting base (32) to move, the probe buffer initiation blocks will touch the probe buffer (34) during the movement path of the probe sliding plate. The frequency response testing mechanism (4) also includes a frequency response buffer (46), which is located on the bottom support near the product side and on both sides of the frequency response sliding plate. Correspondingly, frequency response buffer initiation blocks are provided on both sides of the frequency response sliding plate. When the frequency response cylinder (43) drives the frequency response sliding plate to slide and then drives the frequency response test head (41) on the frequency response test head fixing plate to move, the frequency response buffer initiation blocks will touch the frequency response buffer (46) during the movement path of the frequency response sliding plate.

10. The horn frequency response testing device according to claim 9, characterized in that: The testing equipment also includes a control module, which is connected to the lead screw module (11), barcode scanner (26), probe cylinder (33), and frequency response cylinder (43) respectively, and is used to control the action sequence and parameter settings of each component to realize the automated testing process; the control module includes a "start button", an "end button" and status indicator lights.

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