An automatic assembling method and system based on a car USB connector and the car USB connector

Abstract

The application relates to an automatic assembling method and system based on a car USB joint and the car USB joint, and relates to the technical field of automobile parts, and comprises the following steps: acquiring component image information; determining a placement position according to the component image information and circuit board characteristics; controlling the circuit board to move to an electrostatic removal position based on the placement position, and acquiring scanning information of a scanning position; inputting the scanning information to a label based on the scanning information to form a circuit board label, and pasting the circuit board label on a pasting position; clamping the circuit board and a shell in an assembling posture at the electrostatic removal position to perform assembling, acquiring an extrusion position of a preset extrusion device; controlling the assembled shell to move to the extrusion position and perform compression assembly with a base to form a joint, processing and inspecting the joint based on an inspection processing method, and acquiring assembling image information; when no abnormal characteristics appear in the assembling image information, controlling the joint to move to a qualified area. The application has the effect of improving the assembling efficiency of the car USB joint.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and in particular to an automated assembly method, system, and automotive USB connector based on an automotive USB connector. Background Technology

[0002] A car USB connector is a common in-vehicle accessory used to connect various electronic devices for functions such as charging and data transfer.

[0003] The car USB connector is composed of various parts. After static electricity is removed from each part, they are assembled manually. During assembly, the person needs to pick up the corresponding position of each part, align the positions on each part for assembly, and install them in the order of installation. After installation, the parts are placed in the clamping device and pressed to form the car USB connector.

[0004] When assembling automotive USB connectors manually, errors in assembly methods can reduce assembly efficiency, which needs improvement. Summary of the Invention

[0005] To improve the assembly efficiency of automotive USB connectors, this invention provides an automatic assembly method, system, and automotive USB connector based on automotive USB connectors.

[0006] In a first aspect, the present invention provides an automatic assembly method based on an automotive USB connector, employing the following technical solution:

[0007] An automated assembly method based on an automotive USB connector includes:

[0008] Obtain component image information of the circuit board;

[0009] The placement position is determined based on the component image information and the preset circuit board features;

[0010] Based on the placement position, the control circuit board moves to the preset static electricity removal position and obtains the scanning information of the preset scanning position on the circuit board;

[0011] The scanned information is input into a preset label to form a circuit board label, and the circuit board label is pasted on the preset pasting position on the housing;

[0012] The circuit board and the housing are clamped in a preset assembly posture at the static electricity removal position for assembly. After the circuit board and the housing are assembled, the pressing position of the preset pressing device is obtained.

[0013] The assembled shell is moved to the pressing position and pressed against the preset base to form a joint. The joint is processed and inspected based on the preset inspection method, and the assembly image information of the joint is obtained.

[0014] When no preset abnormal features appear in the assembly image information, the control joint moves to the preset qualified area.

[0015] By adopting the above technical solution, the circuit board is moved to the static removal position for static removal, and the circuit board label is affixed to the affixing position. Then, the circuit board, housing, and base are clamped and assembled to form a connector. The connector is inspected, and finally, the connector is moved to the qualified area by controlling the appearance of abnormal features in the assembly image information. This can automatically complete the assembly and inspection of the connector, reduce the possibility of assembly errors due to manual assembly, and thus improve the assembly efficiency of automotive USB connectors.

[0016] Optional, preset inspection processing methods include:

[0017] The control connector is shaken with a preset shaking amplitude and number of shakings, and sound detection information and the shaking position of the connector are obtained;

[0018] Determine the location of the sound source based on sound detection information;

[0019] Determine whether the location of the sound source coincides with the location of the shaking.

[0020] If the sound source location does not coincide with the shaking location, the control connector is moved to the preset aging position for aging treatment;

[0021] If the location of the sound source coincides with the location of the shaking, the sound corresponding to the shaking location is defined as abnormal sound information based on the sound detection information.

[0022] Determine the type of anomaly based on abnormal sound information;

[0023] Based on the type of abnormality, output preset alarm information and control the connector corresponding to the type of abnormality to move to the preset non-conforming area.

[0024] By adopting the above technical solution, the sound detection information and the shaking position are understood by shaking the connector, and the sound source position is retrieved from the sound detection information. The abnormality type is obtained by the overlap between the sound source position and the shaking position, and an alarm information is output. The connector corresponding to the abnormality type is moved to the unqualified area, thereby reducing the steps of subsequent processing of unqualified connectors and improving the overall assembly efficiency of automotive USB connectors.

[0025] Optionally, the preset inspection processing methods also include:

[0026] The aging temperature and target aging location are determined based on the scan information and aging location.

[0027] Control the connector to move to the target aging position and obtain the number of connectors placed in the aging device;

[0028] When the number of placements is consistent with the preset baseline number, the joints are aged based on the aging temperature and the target aging position, and the aging time of the joints is obtained.

[0029] When the aging time matches the preset reference time, the connector at the target aging position is moved to the preset cooling position.

[0030] The aged joint is cooled at the cooling position for a preset reference cooling time, and after the joint has cooled, the joint is moved to the preset inspection position and inspected.

[0031] By adopting the above technical solution, the consistency and efficiency of the connector aging process can be ensured by understanding the target aging location, aging temperature and placement quantity, and by controlling the aging of the product within the reference cooling time, the connector can be automatically aged and cooled, thereby improving the assembly efficiency of automotive USB connectors.

[0032] Optionally, methods for inspecting the joints include:

[0033] Determine the program to run based on the scan information;

[0034] Control the preset connector sample to move to the preset inspection position and obtain test start information;

[0035] When the test start information matches the preset baseline start information, the connector sample is tested based on the running program, and the test information and count are obtained.

[0036] When the test information matches the preset benchmark test information, the connector sample is removed and the connector is moved to the preset inspection position. The count is reset and the test information is acquired again.

[0037] When the updated test information matches the preset abnormal information, the control connector moves to the preset non-conforming area;

[0038] When the updated test information matches the preset qualified information, the test information and the count are entered into the preset label to form a test label, and the test label is pasted on the pasting position.

[0039] By adopting the above technical solution, by understanding the test information of the joint sample and comparing it with the benchmark test information, the joint can be tested and the count can be reset based on the comparison results, and the test information can be reacquired. This allows the joint testing device to be calibrated, thereby improving the accuracy of joint testing.

[0040] Optionally, the process may include the following before acquiring the component image information of the circuit board:

[0041] Obtain image detection information from the preset conveyor belt;

[0042] When the image detection information contains preset component features, the component position is determined based on the image detection information and the component features;

[0043] Based on the location of the parts, a preset air-blowing classification method is used to determine the type of the parts and the shape of the target parts;

[0044] Determine the reference shape of the part based on the part type;

[0045] Determine the reference blowing force point based on the reference shape of the part;

[0046] The rotation vector angle is determined based on the shape of the target part, the reference blowing force point, and the preset conveying direction. When the part position coincides with the preset rotation position, the component is controlled to rotate by the rotation vector angle.

[0047] The classification location and blowing location are determined based on the part type;

[0048] The blowing angle and blowing power are determined based on the classification location, part location, and part type.

[0049] When the part position coincides with the blowing position, the preset air wall device is controlled to operate at the blowing angle and blowing power.

[0050] By adopting the above technical solution, the part type and target part shape are obtained by understanding the image detection information and the part features. The rotation vector angle is obtained by the part type and target part shape. Then, the blowing device is controlled to blow the part at the blowing position with the blowing direction and blowing power, so as to facilitate the blowing device to blow the part and improve the flexibility of the wind wall device.

[0051] Optional, preset air blower classification methods include:

[0052] When the image detection information contains preset component features, the wind wall device preset on the conveyor belt is controlled to operate at a preset reference power, and the blowing range of the wind wall device is obtained.

[0053] When the part falls into the blowing range, the preset baffle is controlled to rise and fall to the preset shape detection position, and the estimated blocking size of the part on the baffle and the wind speed information corresponding to the estimated blocking size are obtained.

[0054] The blocking distance is determined based on the location of the parts and the reference blowing position of the preset wind wall device;

[0055] Update the estimated blocking specifications based on the wind speed corresponding to the blocking distance and the baseline power.

[0056] Retrieve the estimated barrier height and estimated barrier length based on the updated barrier estimation specifications;

[0057] Based on wind speed information, determine the estimated width of the barrier corresponding to the estimated length of the barrier.

[0058] The estimated part shape is determined based on the estimated height, estimated length, and estimated width of the obstruction, and the estimated part shape is used as the target part shape.

[0059] The part type is determined based on the shape of the target part, and the baffle is controlled to move to the preset reset position.

[0060] By adopting the above technical solution, the air-blowing classification method can achieve efficient and accurate classification of parts. When the part features are detected in the image detection information, the wind wall device uses the part position, the estimated size of the obstruction, and the wind speed information to obtain the shape and type of the target part, thereby reducing the time and error of manual classification, ensuring that each part is accurately classified, and providing a strong guarantee for the subsequent assembly process.

[0061] Optionally, methods for determining the estimated part shape include:

[0062] The estimated part volume is determined based on the estimated part shape.

[0063] Determine whether the estimated part volume is greater than the preset reference part volume;

[0064] If the estimated part volume is not greater than the reference part volume, continue to determine the part type;

[0065] If the estimated part volume is larger than the reference part volume, the parts are stacked and combined according to the preset reference part volume corresponding to each part type to form different reference stack volumes and reference stack shapes corresponding to the reference stack volumes.

[0066] Based on different baseline stack volumes, a baseline stack shape that corresponds to the estimated part volume is selected as the marker stack shape;

[0067] Based on different mark stacking shapes, the mark stacking shape that matches the predicted part shape is selected as the selected stacking shape;

[0068] The preset wind wall device is controlled to blow air to dislodge the stacked components based on the selected stacked shape.

[0069] By adopting the above technical solution, the comparison between the estimated part volume and the reference part volume is understood, and the reference stacking shape is obtained based on the comparison results. The selected stacking shape is obtained by comparing the estimated part volume and the estimated part shape. Then, the blowing device is controlled to blow the stacked parts off, thereby reducing the time wasted in part classification due to improper part sorting and improving the efficiency of part classification.

[0070] Optionally, methods for blowing off stacked components include:

[0071] Obtain the direction of airflow from the wind wall device;

[0072] The stacked parts are determined based on the selected stacking shape;

[0073] The weight values ​​of the stacked parts and the stacking position are determined based on the stacked parts and the selected stacking shape.

[0074] The actual blow-off location is determined based on the stacking position and the selected stacking shape.

[0075] The blowing rotation angle is determined based on the actual blowing location and the direction of the wind wall's blowing.

[0076] The stacked blowing power is determined based on the weight of the stacked parts and the obstruction distance.

[0077] The component is positioned based on the rotation angle of the blow-off, and the wind wall device is controlled to operate with stacked blowing power to blow off the stacked components.

[0078] By adopting the above technical solution, the stacked parts are understood to obtain the stacking blowing power and stacking position. The blow-off rotation angle is obtained by selecting the stacking position, part position, stacking shape, and wind wall blowing direction. The wind wall device blow-off rotation angle and stacking blowing power are then controlled to blow off the stacked parts. This allows the stacked parts to be blown off when the wind wall device is running, while reducing the damage to the parts caused by excessive wind force or improper angle.

[0079] Secondly, this application provides an automated assembly system based on an automotive USB connector, employing the following technical solution:

[0080] An automated assembly system based on an automotive USB connector includes:

[0081] The acquisition module is used to acquire component image information, scan information, labels, extrusion position, assembly image information, sound detection information, shaking position, placement quantity, test information, test labels, image detection information, airflow range, wind wall airflow direction, obstruction estimation specifications, and wind speed information;

[0082] A memory for storing a program for an automated assembly method based on an automotive USB connector;

[0083] A processor is used to load, execute, and implement programs stored in memory.

[0084] Thirdly, this application provides an automotive USB connector, which is assembled using any of the aforementioned automatic assembly methods based on automotive USB connectors, and adopts the following technical solution:

[0085] A car USB connector includes a housing, a circuit board, and a base. The housing has a cavity for housing the circuit board. The circuit board has pins. One end of the circuit board near the pins faces the cavity opening of the housing. The base has a buckle. The housing has a slot for the buckle to be engaged and fixed.

[0086] In summary, this application includes at least one of the following beneficial technical effects:

[0087] 1. By pressing and inspecting the assembled connectors and controlling their movement to the qualified area, the connector assembly process can be automated, reducing assembly errors that may occur during manual assembly and thus improving the assembly efficiency of automotive USB connectors.

[0088] 2. By shaking the connector to identify defective connectors and moving them to the qualified area, the number of subsequent processing steps for defective connectors is reduced, thereby improving the overall assembly efficiency of automotive USB connectors.

[0089] 3. By using a blower-based sorting method, parts can be efficiently and accurately classified, thereby reducing the time and errors of manual sorting, ensuring that each part is accurately classified, and providing strong support for subsequent assembly processes. Attached Figure Description

[0090] Figure 1 This is an exploded view of an automotive USB connector according to an embodiment of the present invention;

[0091] Figure 2 This is a flowchart of an automatic assembly method based on an automotive USB connector according to an embodiment of the present invention;

[0092] Figure 3 This is the method flow of the preset inspection processing method in the embodiment of the present invention. Figure 1 ;

[0093] Figure 4 This is the method flow of the preset inspection processing method in the embodiment of the present invention. Figure 2 ;

[0094] Figure 5 This is a flowchart of a preset air-blowing classification method according to an embodiment of the present invention.

[0095] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Housing; 2. Circuit board; 3. Base; 4. Cavity; 5. Pin; 6. Buckle; 7. Slot. Detailed Implementation

[0096] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0097] Reference Figure 1 A car USB connector includes a housing 1, a circuit board 2, and a base 3. The housing 1 has a cavity 4 for mounting the circuit board 2. The circuit board 2 is provided with pins 5. The end of the circuit board 2 near the pins 5 faces the cavity of the housing 1. The base 3 has a hole for placing the pins 5 and a buckle 6. The housing 1 has a slot 7 for the buckle 6 to be snapped and fixed. The base 3 is installed in conjunction with the housing 1 to fix the circuit board 2 in the cavity 4 of the housing 1.

[0098] Reference Figure 1 and Figure 2 This application discloses an automated assembly method based on an automotive USB connector, comprising the following steps:

[0099] Step S100: Obtain component image information of circuit board 2.

[0100] The component image information refers to the image corresponding to circuit board 2, which is obtained by taking a picture of the storage location corresponding to circuit board 2 using a camera. The storage location is a position set by the technicians for separately storing circuit board 2, housing 1, or base 3.

[0101] Step S101: Determine the placement position based on the component image information and the preset circuit board features.

[0102] The circuit board features refer to the dimensions, shape, color, and other characteristics of the circuit board 2 as defined by the technicians. The placement position refers to the location where a single circuit board 2 is placed, which is determined by selecting the position corresponding to the circuit board features from the component image information.

[0103] Step S102: Based on the placement position, control the circuit board 2 to move to the preset electrostatic removal position, and obtain the scanning information of the preset scanning position on the circuit board 2.

[0104] The static electricity removal position is the location set by the technician to remove static electricity from circuit board 2, and the barcode scanning position is the location on circuit board 2 where the barcode is printed, also set by the technician. The circuit board 2 is moved to the static electricity removal position by a preset clamping device to facilitate subsequent static electricity removal. The clamping device refers to the robotic arm used to clamp circuit board 2, housing 1, and base 3. The clamping parts are equipped with rubber finger sleeves to reduce static electricity generation.

[0105] The scan information refers to the serial number, production batch number, and production specifications of the circuit board 2. The serial number, production batch number, and production specifications obtained by scanning the barcode location with a camera are combined to form the scan information.

[0106] Step S103: Input the scan information into the preset label to form a circuit board label, and paste the circuit board label on the preset pasting position of the housing 1.

[0107] A circuit board label is a label that stores corresponding scanning information. The scanning information is input into a label set by a technician to create the circuit board label. The affixing location is a position on the housing 1 designated by the technician for affixing the label. In this embodiment, two affixing locations are provided on the housing 1. The circuit board label is affixed to the affixing location to facilitate scanning and retrieval by the user.

[0108] Step S104: Clamp the circuit board 2 and the housing 1 in a preset assembly posture at the static electricity removal position and assemble them. After the circuit board 2 and the housing 1 are assembled, obtain the pressing position of the preset pressing device.

[0109] The assembly posture is the posture set by the technician for assembling the circuit board 2, housing 1, and base 3. The circuit board 2 corresponding to the static electricity removal position and the housing 1 in the remaining storage positions are assembled using a clamping device. The pressing position refers to the position where the pressing device presses against the base 3. The pressing position is determined by querying the model of the pressing device. The pressing device is used to press the base 3 to ensure it fits into the housing 1 for installation.

[0110] Step S105: Control the assembled housing 1 to move to the pressing position and press it against the preset base 3 to form a joint. Based on the preset inspection and processing method, process and inspect the joint and obtain the assembly image information of the joint.

[0111] The assembled housing 1 is moved to the pressing position by the clamping device and the base 3 is clamped in the assembly posture for installation. Then, the pressing device is controlled to press it to form a joint. The inspection and treatment method refers to the methods used to detect abnormal noise, age and cool the joint. The specific inspection and treatment steps are as follows: steps S200 to S405.

[0112] Assembly image information refers to images of joints that have undergone inspection and processing methods. These images are captured by a camera and are used as assembly image information.

[0113] Step S106: When no preset abnormal features appear in the assembly image information, control the joint to move to the preset qualified area.

[0114] Abnormal characteristics refer to features on the joints defined by the technicians, such as shrinkage, burrs, scratches, and bubbles. Acceptable areas are designated by the technicians for placing inspected and approved joints.

[0115] When abnormal features appear in the assembly image information, it indicates that the joint has anomalies such as shrinkage, burrs, scratches, and bubbles. Therefore, the clamped joint is moved to a preset non-conforming area. When no abnormal features appear in the assembly image information, it indicates that the joint does not have anomalies such as shrinkage, burrs, scratches, or bubbles. Therefore, the clamped joint is moved to a preset conforming area. The non-conforming area is a designated area set by technicians to accommodate joints with abnormalities.

[0116] Reference Figure 1 and Figure 3 The preset inspection and processing method includes the following steps:

[0117] Step S200: Control the connector to shake with a preset shaking amplitude and number of shakings, and obtain sound detection information and the shaking position of the connector.

[0118] The sway amplitude is the amplitude set by the technician to control the swaying of the clamping device holding the connector, and the sway count is the number of times the clamping device is set by the technician to sway the connector. The clamping device is controlled to sway the connector by adjusting the sway amplitude and the number of sway counts. The sway position refers to the position of the connector when the clamping device sways, and is determined by the coordinates of the clamping part of the connector, which are preset by a GPS device.

[0119] Sound detection information refers to the sound timbre and sound source location information corresponding to the joint inspection. The sound timbre and sound source location information detected by the preset sound collection device when the joint is clamped and shaken by the clamping device are used as sound detection information.

[0120] Step S201: Determine the location of the sound source based on the sound detection information.

[0121] The sound source location refers to the location corresponding to the sound source that produces the sound. The sound source location is obtained by retrieving the sound detection information.

[0122] Step S202: Determine whether the sound source location coincides with the shaking location.

[0123] By determining whether the location of the sound source coincides with the location of the shaking, it can be determined whether there is any abnormal noise from the joint.

[0124] Step S2021: If the sound source position does not coincide with the shaking position, control the connector to move to the preset aging position for aging treatment.

[0125] The aging position is the location set by the technicians for the aging device to perform aging treatment on the joint. The aging device refers to the device used to perform aging treatment on the joint. When the sound source position does not coincide with the shaking position, it indicates that the joint is not making abnormal noise, so the joint is clamped and moved to the aging position for aging treatment.

[0126] Step S2022: If the sound source location coincides with the shaking location, the sound corresponding to the shaking location is retrieved based on the sound detection information and defined as abnormal sound information.

[0127] Abnormal sound information refers to the sound detection information corresponding to the shaking position. When the sound source position coincides with the shaking position, it indicates that the connector is making abnormal noise. Therefore, the sound corresponding to the shaking position is retrieved from the sound detection information as abnormal sound information.

[0128] Step S203: Determine the anomaly type based on the abnormal sound information.

[0129] The anomaly type refers to the type of abnormality corresponding to the occurrence of issues such as dimensional deviation of clip 6, breakage of clip 6, or failure of clip 6 to be properly engaged in the connector. The anomaly type is matched against a pre-set anomaly database based on the anomaly sound information. This anomaly database stores the anomaly types corresponding to different anomaly sound information; it is a manually configured database and will not be elaborated upon here.

[0130] Step S204: Output preset alarm information according to the abnormality type, and control the connector corresponding to the abnormality type to move to the preset non-conforming area.

[0131] The alarm information is preset data and is used to alert the operator of the type of abnormality in the connector. The alarm information is output by the terminal held by the operator to alert the operator of the type of abnormality in the connector, and the connector corresponding to the type of abnormality is moved to the non-conforming area.

[0132] Furthermore, the method for controlling the connector to vibrate with a preset amplitude and number of vibrations includes the following steps:

[0133] Step S2001: Determine the circuit board specifications based on the scan information.

[0134] The circuit board specification refers to the size specification corresponding to circuit board 2, which is obtained by retrieving the circuit board specification from the scanning information.

[0135] Step S2002: Match the target oscillation amplitude from the preset oscillation database according to the circuit board specifications.

[0136] The target wobble amplitude refers to the amplitude of wobble applied to the connector corresponding to the specified circuit board size. The target wobble amplitude is determined by matching the circuit board size against a pre-defined wobble database. This database stores the target wobble amplitudes corresponding to different circuit board sizes; it is a manually configured database and will not be elaborated upon here.

[0137] Step S2003: Determine the installation position of the clip 6 based on the circuit board specifications.

[0138] The installation position refers to the location of the clip 6 on the base 3 corresponding to the circuit board specifications. The installation position is matched from the preset assembly database based on the circuit board specifications. The assembly database stores the installation positions of the clip 6 corresponding to different circuit board specifications. The assembly database is a manually set database and will not be described in detail here.

[0139] Step S2004: Obtain clamping image information of the connector on the clamping device.

[0140] Clamping image information refers to the image corresponding to the connector on the clamping device. The clamping image information is obtained by taking the image corresponding to the connector on the clamping device through a camera preset on the clamping device.

[0141] Step S2005: Determine the shape of the clamping connector based on the clamping image information and the preset connector features.

[0142] The connector features are the shape and color features of the connector set by the technician. The clamping connector shape refers to the shape of the connector on the clamping device. The clamping connector shape is obtained by selecting the outline shape of the image corresponding to the connector features from the clamping image information.

[0143] Step S2006: Determine the direction of shaking based on the shape of the clamping connector and its installation position.

[0144] The shaking direction refers to the direction in which the clamping device shakes. The shaking direction is determined by identifying the installation position from the shape of the clamping connector and analyzing the combination of the connector shape and the installation position. For example, when the buckle 6 and the slot 7 are engaged, they normally fit snugly together or have a small gap. However, if the buckle 6 has a dimensional deviation or is broken, a gap will exist between the buckle 6 and the slot 7. Therefore, it is necessary to control the clamping device to shake in the left-right direction corresponding to the buckle 6. Thus, the left-right direction corresponding to the buckle 6 on the clamping device is taken as the shaking direction.

[0145] Step S2007: Control the clamping device to shake with the target shaking amplitude, shaking direction and shaking number.

[0146] By controlling the clamping device to shake the device with the target shaking amplitude, shaking direction and shaking number, it is convenient to check whether the buckle 6 makes any abnormal noise.

[0147] Reference Figure 1 and Figure 4 The preset inspection and processing methods also include:

[0148] Step S300: Determine the aging temperature and target aging location based on the scan information and aging location.

[0149] Aging temperature refers to the temperature at which the connector is aged. The aging temperature is matched to a preset aging database by scanning information. The aging database stores the aging temperatures corresponding to different scan information; this database is manually set and will not be described in detail here. In this embodiment, the aging temperature is 80 degrees Celsius. Before the connector is placed in the aging device, the temperature of the aging device needs to be controlled to reach the aging temperature.

[0150] The target aging location refers to the position where the connector is placed inside the aging device. When the connector is aging, the circuit board label on the housing 1 needs to be scanned, and the position of the aging device corresponding to the scanned circuit board label is taken as the target aging location.

[0151] Step S301: Control the connector to move to the target aging position and obtain the number of connectors placed in the aging device.

[0152] The placement quantity refers to the number of connectors placed in the aging device. The connectors are moved to the target aging position by clamping the connectors with a clamping device, and the connectors in each aging device are counted, and the count result is used as the placement quantity.

[0153] Step S302: When the number of placements is consistent with the preset baseline number, the joint is aged based on the aging temperature and the target aging position, and the aging time of the joint is obtained.

[0154] The baseline quantity is the maximum number of connectors that can be placed in each aging device, as set by the technicians. In this embodiment, the baseline quantity is 2. When the number of connectors placed matches the baseline quantity, it indicates that the aging device corresponding to the number of connectors placed with the baseline quantity can be activated, and a timer is started during the aging process. The time recorded during the aging process is taken as the aging time. In this embodiment, the timer is reset when the connectors are replaced within the aging device.

[0155] Step S303: When the aging time is consistent with the preset reference time, control the connector at the target aging position to move to the preset cooling position.

[0156] The cooling position is the location set by the technician for cooling the aged connector. The reference time is the maximum time set by the technician for aging the connector. In this embodiment, the reference time is 15 minutes. When the aging time matches the reference time, it indicates that the connector has completed the aging process, and the clamped connector is moved to the cooling position.

[0157] Step S304: Cool the aged joint at the cooling position for a preset reference cooling time, and after the joint has cooled, control the joint to move to the preset inspection position and inspect the joint.

[0158] The reference cooling time is the maximum time set by the technician for cooling the connector. In this embodiment, the reference cooling time is 10 minutes. The inspection position is the position set by the technician for parameter verification of the connector. When the connector is in the cooling position, the cooling device is started and runs for the reference cooling time. After the connector has cooled, the connector is clamped and moved to the preset inspection position for inspection. The cooling device is a device used to cool the connector by blowing air.

[0159] The method for inspecting joints includes the following steps:

[0160] Step S400: Determine the running program based on the scan information.

[0161] The operating program refers to the program used to control the operation of the testing device to test the joint performance. The operating program is matched with scanned information from a pre-set inspection database. The inspection database stores the operating programs corresponding to different scanned information; this database is manually set and will not be elaborated upon here. The testing device refers to the device used to test the joint performance.

[0162] Step S401: Control the preset connector sample to move to the preset inspection position and obtain test start information.

[0163] The connector sample is a sample set by technicians for calibrating the testing device. It is moved to the inspection position by clamping the connector sample. Test start information refers to the device used to control the start of the testing device. Test start information can be a pressure detection value, obtained by parameters detected by a pressure sensor preset at the testing position.

[0164] Step S402: When the test start information is consistent with the preset benchmark start information, test the connector sample based on the running program and obtain the test information and count.

[0165] The reference start-up information is a baseline value set by technicians to control the start of the testing device. The reference start-up information can be a reference pressure value. When the test start-up information matches the reference start-up information, it indicates that the testing device has been activated to inspect the joint.

[0166] Test information refers to the comparative results of the testing device's inspection of joints or joint samples. This information is retrieved from the system corresponding to the testing device and can be either pass / fail or fail information. The count quantity refers to the number of joints inspected by the testing device. This is achieved by counting each test result. Pass information is the output of the testing device for joints that have passed inspection, as set by the technician. Fail information is the output of the testing device for joints that have failed inspection, as set by the technician.

[0167] Step S403: When the test information is consistent with the preset benchmark test information, remove the connector sample and control the connector to move to the preset inspection position, reset the count, and reacquire the test information.

[0168] The benchmark test information is the test information corresponding to the connector sample set by the technician. When the test information is inconsistent with the benchmark test information, it indicates that there is a parameter error in the testing device. Therefore, the testing device is calibrated using the benchmark test information. When the test information is consistent with the benchmark test information, it indicates that there is no parameter error in the testing device. Therefore, the connector sample is removed, the connector is clamped and moved to the inspection position, the count is reset, and the test information is acquired again.

[0169] Step S404: When the updated test information matches the preset abnormal information, control the connector to move to the preset non-conforming area.

[0170] When the updated test information matches the abnormal information, it indicates that the connector's performance is abnormal, so the clamped connector is moved to the non-conforming area.

[0171] Step S405: When the updated test information matches the preset qualified information, input the test information and count into the preset label to form a test label, and paste the test label on the pasting position.

[0172] The test label refers to the label of the corresponding connector after testing. When the updated test information is consistent with the qualified information, it means that the performance of the connector is not abnormal. Therefore, the test information and the count are entered into the label set by the technician to form a test label, and the test label is pasted on the pasting position on the other side of the housing 1.

[0173] Before obtaining the component image information of circuit board 2, the following steps are also included:

[0174] Step S500: Obtain the preset image detection information on the conveyor belt.

[0175] Image detection information refers to images of the conveyor belt, acquired by cameras pre-installed on the conveyor belt. The conveyor belt is a device used to transport and sort circuit boards 2, housings 1, and bases 3. It is equipped with an airflow wall device, a turntable device, baffles, and branch conveyor belts. The airflow wall device is positioned between two conveyor belts, with an inclined plate between them. The inclined plate has holes for airflow through the airflow wall. The airflow direction of the airflow wall device is the same as the direction of the conveyor belt's movement. The turntable device is positioned within the airflow range of the airflow wall device, and the baffles are positioned between the branch conveyor belts and the airflow wall device.

[0176] Step S501: When the image detection information contains preset component features, determine the component position based on the image detection information and the component features.

[0177] The component features are the shape, color, and other characteristics corresponding to the circuit board 2, housing 1, and base 3 as defined by the technicians. The components are circuit board 2, housing 1, and base 3. The component position refers to the location of the component on the conveyor belt. When the image detection information contains component features, it indicates that a component has passed on the conveyor belt. Therefore, the position of the image corresponding to the component features is selected from the image detection information as the component position.

[0178] Step S502: Determine the part type and target part shape based on the part location using a preset air-blowing classification method.

[0179] The air-blowing classification method refers to a method used to classify parts by air blowing. Specific operation steps are described in steps S600 to S807. Part type refers to the type of part it corresponds to, and target part shape refers to the shape of the part corresponding to that part type on the conveyor belt. The part type and target part shape are obtained by combining the part position with the air-blowing classification method for analysis.

[0180] Step S503: Determine the reference shape of the part according to the part type.

[0181] The reference shape of a part refers to the reference shape of the component corresponding to the part type. The reference shape of the part is matched from a preset shape database based on the part type. The shape database stores the reference shapes of different part types. The shape database is a manually set database and will not be described in detail here.

[0182] Step S504: Determine the reference blowing force point based on the reference shape of the part.

[0183] The reference airflow stress point refers to the location where a component experiences the maximum force from the airflow. This reference airflow stress point is matched from the shape database using the component's reference shape. The shape database also stores reference airflow stress points corresponding to different component reference shapes, which will not be elaborated upon here.

[0184] Step S505: Determine the rotation vector angle based on the target part shape, the reference blowing force point, and the preset conveying direction, and control the component to rotate by the rotation vector angle when the part position coincides with the preset rotation position.

[0185] The conveying direction is the direction in which the conveyor belt transports parts, as set by the technicians. The rotation vector angle refers to the vector angle by which the turntable device needs to rotate. It is obtained by marking the position of the reference blowing force point on the target part shape and marking the nearest position of the conveying direction relative to the target part shape. The rotation vector angle is obtained by combining the two marked positions.

[0186] Step S506: Determine the classification location and blowing location based on the part type.

[0187] The classification position refers to the location where corresponding parts are conveyed on the branch conveyor belts. It is determined by matching the part type with a preset baseline classification type for each branch conveyor belt, and the location of the branch conveyor belt where the part type and baseline classification type coincide is used as the classification position. The baseline classification type is the type of part conveyed by each branch conveyor belt as set by the technicians.

[0188] The blowing position refers to the location where the airflow device blows components to their designated sorting positions. The blowing position is matched from a pre-set blowing database based on the component type. This database stores the blowing positions corresponding to different component types; it is a manually configured database and will not be elaborated upon here.

[0189] Step S507: Determine the blowing angle and blowing power based on the classification location, part location, and part type.

[0190] The blowing angle refers to the angle at which the airflow wall device blows air. It is determined by forming straight lines between the classification location and the component location, and then analyzing the angle between these two lines. The reference blowing location is the position where the airflow wall device is installed and blows air, as set by the technicians. The blowing power refers to the power of the airflow wall device. It is determined by matching the blowing power from a blowing power database based on the component type. The blowing power database also stores the blowing power corresponding to different component types, which will not be elaborated upon here.

[0191] Step S508: When the part position coincides with the blowing position, control the preset air wall device to operate at the blowing angle and blowing power.

[0192] When the part's position coincides with the airflow position, it indicates that the airflow barrier needs to assist in sorting the parts by blowing air. Therefore, the airflow barrier is controlled to operate at the blowing angle and power to blow the parts corresponding to the part type to the sorting position. When the part's position coincides with the sorting position, the airflow barrier is controlled to reset.

[0193] Reference Figure 5 The preset method for classifying blowers includes the following steps:

[0194] Step S600: When the image detection information contains preset component features, control the preset wind wall device on the conveyor belt to operate at a preset reference power, and obtain the blowing range of the wind wall device.

[0195] The reference power is the power set by the technicians for the baseline operation of the air wall device. The blowing range refers to the range in which the air wall device blows air. When the image detection information contains component features, it means that the air wall device needs to identify and classify the components. Therefore, the air wall device is controlled to operate at the reference power, and the blowing range of the air wall device is retrieved by querying the specifications of the air wall device installed on the conveyor belt.

[0196] Step S601: When the part falls into the blowing range, control the preset baffle to rise and fall to the preset shape detection position, and obtain the estimated blocking specification of the part on the baffle and the wind speed information corresponding to the estimated blocking specification.

[0197] The shape detection position is a location set by technicians to detect the shape of parts on the conveyor belt. This position is located between the turntable and the sorting position, with the length of the baffle perpendicular to the conveying direction. The obstruction prediction specification refers to the specification of the airflow blown by the obstruction windbreak device on the conveyor belt. Multiple hot-wire anemometers pre-installed on the baffle detect different wind velocities blowing onto the baffle as wind speed information, and the resulting contour specifications are used as the obstruction prediction specification.

[0198] Step S602: Determine the blocking distance based on the position of the part and the reference blowing position of the preset wind wall device.

[0199] The obstruction distance refers to the distance that a part's position can block the airflow from the wind wall. The obstruction distance is calculated by the straight-line distance between the part's position and the reference airflow position.

[0200] Step S603: Update the blocking estimate specifications based on the wind speed corresponding to the blocking distance and the reference power.

[0201] The correction coefficients are matched from a preset correction database by matching the wind speed corresponding to the blocking distance and the reference power, and then combined with the blocking prediction specifications to obtain new blocking prediction specifications.

[0202] Step S604: Retrieve the estimated barrier height and estimated barrier length based on the updated barrier estimation specifications.

[0203] The estimated blocking height refers to the estimated height of the wind barrier device of the component, and the estimated blocking length refers to the estimated length of the wind barrier device of the component. The estimated blocking height and estimated blocking length are retrieved from the updated estimated blocking specifications.

[0204] Step S605: Determine the estimated width of the barrier corresponding to the estimated length of the barrier based on the wind speed information.

[0205] The estimated blocking width refers to the estimated width of the windbreak device that the component will block. This is determined by inputting wind speed information along the estimated blocking length into a pre-set blocking database. The blocking database stores the estimated blocking width corresponding to different wind speeds. This database is manually configured and will not be elaborated upon here.

[0206] Step S606: Determine the estimated part shape based on the estimated barrier height, estimated barrier length, and estimated barrier width, and use the estimated part shape as the target part shape.

[0207] The estimated part shape refers to the estimated shape of the components within the blowing range. The estimated part shape is obtained by combining the estimated height, length, and width of the obstruction, and the estimated part shape is used as the target part shape.

[0208] Step S607: Determine the part type based on the target part shape, and control the baffle to move to the preset reset position.

[0209] The target part shape is matched with a preset shape database to determine the part type. This shape database stores the part types corresponding to different target part shapes and is manually configured; details are omitted here. The reset position is a position set by the technician to allow the components within the airflow range to move when the control baffle is reset. In this embodiment, the baffle moves from top to bottom onto the conveyor belt, and during reset, it is raised to the reset position.

[0210] The method after determining the estimated part shape includes the following steps:

[0211] Step S700: Determine the estimated part volume based on the estimated part shape.

[0212] The estimated part volume refers to the volume corresponding to the estimated part shape. It is calculated by breaking down the estimated part shape into various preset reference shapes, and then combining the dimensions corresponding to the estimated part shape with the volumes of the split reference shapes. The reference shapes are trapezoids, squares, triangles, etc., set by the technicians.

[0213] Step S701: Determine whether the estimated part volume is greater than the preset reference part volume.

[0214] The reference part volume is the minimum stacking volume of components as defined by the technicians. By determining whether the estimated part volume is greater than the reference part volume, it is possible to determine whether components on the conveyor belt are stacked.

[0215] Step S7011: If the estimated part volume is not greater than the reference part volume, continue to determine the part type.

[0216] If the estimated part volume is not greater than the reference part volume, it means that there is no stacking of parts on the conveyor belt, so continue to execute step S607.

[0217] Step S7012: If the estimated part volume is greater than the reference part volume, stack and combine them according to the preset reference part volume corresponding to each part type to form different reference stack volumes and reference stack shapes corresponding to the reference stack volumes.

[0218] The reference part volume is the reference volume corresponding to each part type set by the technician. The reference stack volume refers to the volume corresponding to the stacking of different part types. The reference stack shape refers to the shape of the component stack corresponding to the reference stack volume. When the estimated part volume is greater than the reference part volume, it indicates that there is stacking of components on the conveyor belt. Therefore, the volume formed by stacking different shapes of the preset reference part volumes corresponding to each part type is used as the reference stack volume, and the stack shape corresponding to the reference stack volume is used as the reference stack shape.

[0219] Step S702: Select the reference stack shape that corresponds to the estimated part volume based on different reference stack volumes as the mark stack shape.

[0220] The marked stack shape refers to the reference stack shape whose reference stack volume is consistent with the estimated part volume. The reference stack shape that is consistent with the estimated part volume is selected from different reference stack volumes as the marked stack shape.

[0221] Step S703: Select the mark stack shape that matches the estimated part shape based on different mark stack shapes.

[0222] Selecting a stacking shape refers to selecting a mark stacking shape that matches the estimated part shape from different mark stacking shapes.

[0223] Step S704: Control the preset wind wall device to blow air to blow off the stacked parts according to the selected stacking shape.

[0224] The stacking shape is selected for analysis to control the wind wall device to blow off the stacked parts. The specific blowing method is described in steps S800 to S807.

[0225] The method for blowing off stacked components includes the following steps:

[0226] Step S800: Obtain the airflow direction of the wind wall device.

[0227] The airflow direction of an air wall refers to the direction in which the airflow from the air wall device is directed. It is defined by the conveyor direction of the conveyor belt corresponding to the baffle. An air wall device is a device used to generate an air curtain.

[0228] Step S801: Determine the stacked parts based on the selected stacking shape.

[0229] Stacked parts refer to parts that are stacked on top of other parts on a conveyor belt. By selecting the stacked shape, the shape corresponding to the other parts is retrieved, and the retrieved shape is matched with the part type corresponding to the part in the shape database as the stacked part.

[0230] Step S802: Determine the weight value of the stacked parts and the stacking position based on the stacked parts and the selected stacking shape.

[0231] The weight value of stacked parts refers to the weight value of stacked parts. The weight value of stacked parts is obtained by matching the weight value of stacked parts from the shape database. The shape database also stores the weight values ​​corresponding to different parts, which will not be elaborated here.

[0232] Stacking position refers to the position where stacked parts are placed on top of other components. The stacking position is determined by selecting the position where the shape corresponding to the stacked part intersects with the shape of other components from the selected stacking shape.

[0233] Step S803: Determine the actual blow-off location based on the stacking position and the selected stacking shape.

[0234] The actual blow-off location refers to the location where the stacked parts are actually blown off by the wind wall device. The wind-blowing location is matched with the selected stacking shape from a preset stacking database. The stacking database stores the corresponding wind-blowing locations for different stacking positions and selected stacking shapes under various stacking methods. The stacking database is a manually set database and will not be elaborated upon here.

[0235] Step S804: Determine the blowing rotation angle based on the actual blowing position and the direction of the wind wall.

[0236] The blow-off rotation angle refers to the angle at which the turntable rotates to facilitate the wind wall device blowing off the stacked parts. It is obtained by marking the closest position of the wind wall blowing direction relative to the selected stacked shape, and combining the marked position with the actual blow-off position to obtain the vector angle as the blow-off rotation angle.

[0237] Step S805: Determine the stacked blowing power based on the weight of the stacked parts and the obstruction distance.

[0238] Stacked airflow power refers to the power of the airflow wall device to blow down stacked parts. The stacked airflow power is matched from a preset airflow database by the weight value of the stacked parts and the blocking distance. The airflow database stores the stacked airflow power corresponding to different weight values ​​of stacked parts and blocking distances. The airflow database is a manually set database and will not be described in detail here.

[0239] Step S806: Rotate the component position based on the blow-off rotation angle, and control the wind wall device to operate with stacked blowing power to blow off the stacked components.

[0240] The rotary device is controlled to blow off components that rotate at a certain angle to change their position, and the wind wall device is controlled to operate with stacked blowing power to blow off stacked components.

[0241] Based on the same inventive concept, embodiments of the present invention provide an automated assembly system based on an automotive USB connector, comprising:

[0242] The acquisition module is used to acquire component image information, scan information, labels, extrusion position, assembly image information, sound detection information, shaking position, placement quantity, test information, test labels, image detection information, airflow range, wind wall airflow direction, obstruction estimation specifications, and wind speed information;

[0243] A memory for storing a program for an automated assembly method based on an automotive USB connector;

[0244] A processor is used to load, execute, and implement programs stored in memory.

[0245] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0246] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for automatic assembly based on a car USB connector, characterized in that, The method comprises the following steps: acquiring component image information of the circuit board (2); determining a placement position according to the component image information and a preset circuit board feature; controlling the circuit board (2) to move to a preset electrostatic removal position based on the placement position, and acquiring scanning information of a preset scanning code position on the circuit board (2); inputting the scanning information to a preset label to form a circuit board label, and pasting the circuit board label on a pasting position of the preset shell (1); clamping the circuit board (2) and the shell (1) in a preset assembly posture at the electrostatic removal position to perform assembly, and after the circuit board (2) and the shell (1) are assembled, acquiring an extrusion position of a preset extrusion device; controlling the assembled shell (1) to move to the extrusion position and perform compression assembly with a preset base (3) to form a joint, processing and inspecting the joint based on a preset inspection processing method, and acquiring assembly image information of the joint; when the assembly image information does not appear a preset abnormal feature, controlling the joint to move to a preset qualified area; before acquiring the component image information of the circuit board (2), the method further comprises the following steps: acquiring image detection information on a preset conveying belt; when the image detection information contains a preset component feature, determining a component position according to the image detection information and the component feature; determining a component type and a target component shape according to the component position by a preset blowing classification method, the target component shape refers to a shape of the component corresponding to the component type on the conveying belt; determining a component reference shape according to the component type; determining a reference blowing stress point according to the component reference shape; determining a rotation vector angle according to the target component shape, the reference blowing stress point and a preset conveying direction, and when the component position coincides with a preset rotation position, controlling the component to rotate at the rotation vector angle; determining a classification position and a blowing position based on the component type; determining a blowing angle and a blowing power according to the classification position, the component position and the component type; when the component position coincides with the blowing position, controlling a preset wind wall device to operate at the blowing angle and the blowing power; the preset blowing classification method comprises the following steps: when the image detection information contains the preset component feature, controlling a wind wall device preset on the conveying belt to operate at a preset reference power, and acquiring a blowing range of the wind wall device; when the component position falls within the blowing range, controlling a preset baffle to rise to a preset shape detection position, and acquiring a blocking estimation specification of the component on the baffle and wind speed information corresponding to the blocking estimation specification; determining a blocking distance according to the component position and a reference blowing position of the preset wind wall device; updating the blocking estimation specification according to the blocking distance and a wind speed corresponding to the reference power; according to the updated blocking estimation specification, retrieving a blocking estimation height and a blocking estimation length, the blocking estimation height refers to an estimated height of the component shielding the wind of the wind wall device, and the blocking estimation length refers to an estimated length of the component shielding the wind of the wind wall device; determining a blocking estimation width corresponding to the blocking estimation length based on the wind speed information; determining an estimated component shape according to the blocking estimation height, the blocking estimation length and the blocking estimation width, and taking the estimated component shape as the target component shape; Determine the part type based on the target part shape, and control the baffle to move to a preset reset position; The method for determining the estimated part shape includes: Determine the estimated part volume based on the estimated part shape; Determine whether the estimated part volume is greater than a preset reference part volume; If the estimated part volume is not greater than the reference part volume, continue to determine the part type; If the estimated part volume is greater than the reference part volume, perform stacking combination according to the preset reference part volume corresponding to each part type to form different reference stacking volumes and reference stacking shapes corresponding to the reference stacking volumes; Select the reference stacking shape corresponding to the estimated part volume as the selected stacking shape based on the different reference stacking volumes; Select the selected stacking shape corresponding to the estimated part shape based on the different selected stacking shapes; Control the preset air wall device to blow according to the selected stacking shape to blow off the stacked parts; The method for blowing off the stacked parts includes: Obtain the air wall blowing direction of the air wall device; Determine the stacked parts according to the selected stacking shape; Determine the stacked part weight value and the stacking position according to the stacked parts and the selected stacking shape; Determine the actual blowing position according to the stacking position and the selected stacking shape; Determine the blowing rotation angle according to the actual blowing position and the air wall blowing direction; Determine the stacking blowing power based on the stacked part weight value and the blocking distance; Rotate the parts at the part position based on the blowing rotation angle, and control the air wall device to operate at the stacking blowing power to blow off the stacked parts.

2. The method of claim 1, wherein the method further comprises: The preset inspection processing method includes: Control the joint to shake at a preset shaking amplitude and shaking times, and obtain sound detection information and a shaking position of the joint; Determine the sound source position according to the sound detection information; Determine whether the sound source position coincides with the shaking position; If the sound source position does not coincide with the shaking position, control the joint to move to a preset aging position for aging treatment; If the sound source position coincides with the shaking position, retrieve the sound corresponding to the shaking position based on the sound detection information as abnormal sound information; Determine the abnormal type based on the abnormal sound information; Output preset alarm information according to the abnormal type, and control the joint corresponding to the abnormal type to move to a preset unqualified area.

3. The method of claim 1, wherein the method further comprises: The preset inspection processing method further includes: Determine the aging temperature and the target aging position according to the scanning information and the aging position; Control the joint to move to the target aging position, and obtain the placement quantity of the joint in the aging device; When the placement quantity is consistent with a preset reference quantity, perform aging treatment on the joint based on the aging temperature and the target aging position, and obtain the aging time of the joint; When the aging time is consistent with a preset reference time, control the joint at the target aging position to move to a preset cooling position; Cool the aged joint at the cooling position for a preset reference cooling time, and after the joint is cooled, control the joint to move to a preset inspection position and perform inspection on the joint.

4. The method of claim 3, wherein the method further comprises: The method for inspecting the joint includes: Determine the running program according to the scanning information; Control the preset joint sample to move to a preset inspection position and obtain test start information; When the test start information is consistent with the preset reference start information, the connector sample is tested based on the running program, and test information and a count number are obtained; When the test information is consistent with the preset reference test information, the connector sample is removed, the connector is controlled to move to a preset inspection position, the count number is reset, and the test information is reacquired; When the updated test information is consistent with the preset abnormal information, the connector is controlled to move to a preset unqualified area; When the updated test information is consistent with the preset qualified information, a test label is formed according to the test information and the count number, and the test label is pasted on a pasting position.

5. An automatic assembly system based on a car USB connector, characterized by, The method comprises the following steps: The acquisition module is used to acquire component image information, scanning information, labels, extrusion positions, assembly image information, sound detection information, shaking positions, placement numbers, test information, test labels, image detection information, blowing ranges, wind wall blowing directions, blocking estimation specifications, and wind speed information. The memory is used to store a program of the automatic assembly method based on the automobile USB connector according to any one of claims 1 to 4. The processor is used to load and execute the program stored in the memory.

6. An automotive USB connector assembled by the method of any one of claims 1 to 4, wherein The shell (1) is provided with a cavity (4) for placing the circuit board (2), the circuit board (2) is provided with a PIN pin (5), and the end of the circuit board (2) close to the PIN pin (5) is directed to the position of the cavity opening of the shell (1). The base (3) is provided with a buckle (6), and the shell (1) is provided with a clamping groove (7) for clamping and fixing the buckle (6).

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