CN112658143A - Vehicle-mounted millimeter wave radar device pressing detection equipment - Google Patents
Vehicle-mounted millimeter wave radar device pressing detection equipment Download PDFInfo
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- CN112658143A CN112658143A CN202110011473.1A CN202110011473A CN112658143A CN 112658143 A CN112658143 A CN 112658143A CN 202110011473 A CN202110011473 A CN 202110011473A CN 112658143 A CN112658143 A CN 112658143A
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- 238000001514 detection method Methods 0.000 title claims abstract description 58
- 238000003825 pressing Methods 0.000 title claims abstract description 28
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- 230000010354 integration Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
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Abstract
The invention aims to provide a vehicle-mounted millimeter wave radar device pressing detection device, which comprises a device box body, wherein the bottom of the device box body is provided with four supporting legs, the device box body comprises an operation box body and an observation box body, the outer side wall of the observation box body is provided with a control device, four sides of the side wall of the observation box body are respectively provided with a transparent observation window, an operation underframe is arranged in the operation box body, the operation underframe is provided with a pressing detection device which can be adjusted in a bidirectional online manner, controls and adjusts the variation rate of pressure and speed to distance and is matched with a pressing device mechanism, the pressing and detection integrated production of a vehicle-mounted radar device can be effectively realized, the intelligent degree of the device is effectively improved, the stability degree of the device during operation is effectively improved, the device has smaller electrical contact impedance and good high-frequency characteristic, the requirements of the vehicle-mounted equipment on 5G application can be met.
Description
Technical Field
The invention relates to the technical field of vehicle-mounted radar device product detection equipment, in particular to vehicle-mounted millimeter wave radar device pressing detection equipment.
Background
Along with the rapid progress and development of our country's society, the use of vehicle-mounted electrical products is more common at present, especially vehicle-mounted radar products, and the popularization and the use of 5G communication have been in a large range at present, but some vehicle-mounted radar products at present still adopt traditional welding mode, it is difficult to satisfy the application of current 5G communication in the aspect of automotive electronics, the thermal stress influence that current welding operation caused to the PCB board is too big, based on current welding technology, welding bulge or flux residue that easily causes the damage or fracture of connector PIN, and cause phenomena such as short circuit, rosin joint, corrosion, make the product vibrate, high temperature, convenient reliability of high cold reduce, and welding technology at present needs strict washing, the cost has increased to a great extent, also cause very big influence to the environmental protection.
Therefore, the utility model provides a vehicle-mounted millimeter wave radar device pressfitting check out test set, through carrying out effectual improvement to traditional vehicle-mounted radar product welding mode, through adopting dedicated pressfitting check out test set of millimeter wave radar device and the online check out test set that two-way transmission combined together, can effectual realization action, pressure, the aircraft nose that visual inspection judged carries out X, Y, Z epaxial three side's regulation motion, and to the control regulation of the rate of change of pressure, speed to the distance, and with the mutually supporting of presser mechanism, can effectual realization vehicle-mounted radar device's pressfitting, detect integrated production, the intelligent degree of effectual improve equipment, the stability of effectual improve equipment during operation, have less electric contact impedance, have good high frequency characteristic, can satisfy vehicle-mounted equipment's requirement in 5G application, simultaneously this application adopts the vision system in the controlling means to realize Mark point detection, Two-dimensional code discernment, PIN needle concentricity detect, PIN needle 3D highly detect judges, and whole record, control pressure curve change possess pressure curve analysis function, and the effectual reliability and the stability that improves the device have reduced the cost at to a great extent, just become the problem that the technical staff in the field need solve urgently.
Disclosure of Invention
The invention aims to provide a vehicle-mounted millimeter wave radar device pressing detection device, which can effectively realize the adjustment movement of X, Y, Z axes in three directions of a nose for action, pressure and visual inspection and judgment by effectively improving the welding mode of the traditional vehicle-mounted radar product and adopting the pressing detection device special for the millimeter wave radar device and an online detection device combining bidirectional transmission, can effectively realize the control and adjustment of the pressure and speed to the variation rate of the distance and is matched with a pressing device mechanism, can effectively realize the pressing and detection integrated production of the vehicle-mounted radar device, effectively improve the intelligent degree of the device, effectively improve the stability degree of the device during working, has smaller electrical contact impedance, has good high-frequency characteristic and can meet the requirement of the vehicle-mounted device on 5G application, meanwhile, the visual system in the control device is adopted to realize Mark point detection, two-dimensional code recognition, PIN needle concentricity detection and PIN needle 3D height detection judgment, the pressure curve change is recorded and monitored in the whole process, the pressure curve analysis function is realized, the reliability and the stability of the device are effectively improved, and the cost is reduced to a great extent.
In order to solve the technical problems in the background technology, the invention adopts the following technical scheme:
the utility model provides an on-vehicle millimeter wave radar device pressfitting check out test set, includes the equipment box, equipment bottom half be equipped with four landing legs, the equipment box including operation box and observation box, observation box lateral wall on be equipped with controlling means, observation box lateral wall four sides all be equipped with transparent observation window, the operation box in be equipped with the operation chassis, the operation chassis on be equipped with pressfitting detection device with two-way online adjustable.
Preferably, the pressfitting detection device include pressfitting ware, clamping jaw, 2D 3D camera module, detect adjusting device and two-way transmission device and mutually support the setting, the pressfitting ware set up on the chassis flat board of operation chassis, 2D 3D camera module pass through the camera fixed plate and detect and be connected on the adjusting device lateral wall, the clamping jaw passes through electronic micromatic setting and detects the adjusting device lateral wall and go up and link, the detection adjusting device include X axle adjusting beam, Y axle adjusting beam and Z axle adjusting lever, the dull and stereotyped both ends symmetry of chassis be equipped with perpendicular side vertical grillage, the both ends of X axle adjusting beam are fixed respectively on side vertical grillage top, Y axle adjusting beam level fix on the side vertical grillage of X axle adjusting beam one end department, Z axle adjusting lever set up perpendicularly at the chassis flat board of X axle adjusting beam and Y axle adjusting beam junction, x axle adjust roof beam and Y axle and adjust the roof beam and all be equipped with the regulation track, X axle adjust roof beam, Y axle adjust roof beam and Z axle and adjust the pole on all be equipped with and adjust driving motor, adopt the dedicated pressfitting check out test set of millimeter wave radar device and the online check out test set that the transmission of bidirectional system combined together, the aircraft nose that can effectual realization action, pressure, visual inspection judge carries out the three ascending regulation motion of X, Y, Z axles, and to pressure, speed to the control regulation of the rate of change of distance, and with mutually supporting of pressfitting ware mechanism, the pressfitting that can effectual realization vehicle radar device, the production of detection integration, the intelligent degree of effectual improve equipment.
Preferably, electronic micromatic setting motor and clamping jaw rotating electrical machines about including the clamping jaw, the clamping jaw about the motor pass through the fixed block and be connected with the fixed plate one end on the X axle adjusting beam lateral wall, clamping jaw rotating electrical machines fix on the telescopic shaft of motor about the clamping jaw, the clamping jaw fix on clamping jaw rotating electrical machines's rotation axis, through the fine motion regulation of two angles of upper and lower and rotation, can effectual increase clamping jaw snatch the precision, effectual improve equipment snatchs and the efficiency of work.
Preferably, the other end of the fixing plate is fixedly connected with the camera fixing plate through a plurality of groups of adjusting rods, the adjusting rods are telescopic adjusting rods with adjustable lengths, the positions of the 3D camera modules can be adjusted according to the size adaptability of the workpiece, and the information of the workpiece can be monitored and collected more accurately.
Preferably, the fixed plate on be equipped with the protection casing of U type structure, can enough effectually carry out effectual protection to clamping jaw and 3D camera module, the safe strength when can increase the use again, the effectual staff mistake of avoiding bumps and receives the injury.
Preferably, two-way transmission device include assembly line track, track support and carrier mobile device, the track support establish to two-layer, all be equipped with the assembly line track on every layer of track support, the assembly line track include drive belt and drive wheel, the drive wheel establish to two sets ofly, every group drive wheel establish to a plurality ofly, the drive wheel fix respectively on track support inside wall, connect through the drive belt between a plurality of drive wheels, the drive wheel be connected through the transmission driving motor on drive pivot and the track support, the mobile carrier device set up on the assembly line track, through the assembly line track that can two-way transmission, can effectual improvement work piece assembly line operation's efficiency, more convenient production and operation.
Preferably, the carrier mobile device include carrier dish, push away material module and block the module, carrier dish lower surface directly be connected with the drive belt, push away material module and block the module and set up respectively at carrier dish both ends, carrier dish lateral wall department is equipped with the side and pushes away the module, carrier dish upper surface on be equipped with the work piece fixed disk, the work piece fixed disk fix on carrier dish through dismantling the screw rod.
Preferably, the track support inner wall both ends of assembly line track top be equipped with the guide block respectively, the guide way of guide block lateral wall in be equipped with multiunit direction and change the roller, and the angle of inclination of guide block establishes to 10 degrees, can effectually carry out effectual guiding removal to the carrier dish, make the carrier dish place more conveniently, improve the efficiency of work.
Preferably, the control device comprises a display and an operation keyboard, the display is connected with the operation keyboard through a connecting rod, and the display is connected with the side wall of the observation box body through a rotary shaft rod bolt.
Preferably, the operation box on be equipped with the heating panel, heating panel and operation box between be connected through buckle formula connected mode, the heating panel on be equipped with a plurality of louvres, all be equipped with radiator fan on every louvre, and louvre department all is equipped with the dust screen, four landing leg departments of equipment bottom half still be equipped with the removal gyro wheel, through detachable heating panel, can reach effectual realization to the radiating operation of equipment, can make things convenient for the dismantlement of heating panel again to wash and change more, simple structure's buckle formula connected mode is convenient for more the operation, improves the convenience of later maintenance, reduces the cost of maintenance, improves the efficiency of maintenance.
The mechanism is beneficial, and is special pressing/detecting equipment for a vehicle-mounted millimeter wave radar device; the equipment adopts online operation and has the functions of left-in right-out/right-in left-out bidirectional movement; the machine head can realize X, Y, Z three-direction movement equipment control system to realize the control of the variation rate of pressure, speed and pressure to distance by adopting the whole program control of working elements such as PC control action, pressure, visual inspection judgment and the like; the vision system realizes Mark point detection, two-dimensional code recognition, PIN needle concentricity detection and PIN needle 3D height detection judgment; the pressure curve change is recorded and monitored in the whole process, and the pressure curve analysis function is achieved; the system has the perfect production statistical functions of manual teaching function, database management, SPC management, log management, user management, program management function, MES system and the like.
The structure adopts an H-shaped frame, a servo motor and a high-precision ball screw structure, has high compressive strength, is not easy to deform, ensures the precision and the repeatability of equipment, implements dynamic control on software control, and realizes the Press-Fit flexible control of pressure, speed and stop position in the whole process of a product; the variation rate of the distance by the pressure is monitored in the whole process, so that the tight fit of the PCB and the surface of the shell is controlled, more precise/stable crimping is guaranteed, and PCB Mark point detection, jig two-dimensional code recognition, PIN concentricity detection and 3D PIN height detection are achieved in the aspect of vision; the pressure curve change is recorded and monitored in the whole process, and the pressure curve analysis function is achieved; manual teach function, database management, SPC management, log management, user management, program management function, MES system.
The invention has the beneficial effects that:
1) adopt dedicated pressfitting check out test set of millimeter wave radar device and online check out test set that the transmission of bidirectional system combined together, can effectual realization action, pressure, the aircraft nose that visual inspection judged carries out the ascending regulation motion of X, Y, Z axle three directions, and to pressure, speed is to the control regulation of the rate of change of distance, and with mutually supporting of pressfitting ware mechanism, can the effectual pressfitting of realizing on-vehicle radar device, detect integration production, effectual improve equipment's intelligent degree, the stability of effectual improve equipment during operation.
2) The high-frequency-resistance.
3) Simultaneously this application adopts the visual system in the controlling means to realize that Mark point detection, two-dimensional code discernment, PIN needle concentricity detect, PIN needle 3D height detection judge, whole record, control pressure curve change possess pressure curve analysis function, the reliability and the stability of effectual improvement device, at to a great extent reduce the cost.
4) And thermal stress on the PCB caused by welding operation is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural diagram of a vehicle-mounted millimeter wave radar device pressing detection device according to the present invention;
FIG. 2 is a schematic diagram of an internal structure of a pressing detection device for a vehicle-mounted millimeter wave radar device according to the present invention;
FIG. 3 is a partial schematic view of a structure of a pressing detection device for a vehicle-mounted millimeter wave radar device according to the present invention;
FIG. 4 is a partial schematic structural view of a pressing detection device for a vehicle-mounted millimeter wave radar device according to the present invention;
FIG. 5 is a partial schematic view of a structure of a pressing detection device for a vehicle-mounted millimeter wave radar device according to the present invention;
fig. 6 is a partial schematic structural view of a pressing detection device for a vehicle-mounted millimeter wave radar device according to the present invention.
Detailed Description
The present invention will be described in further detail below in order to enable those skilled in the art to better understand the technical solution of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, a pressing detection device for a vehicle-mounted millimeter wave radar device includes a device box, four legs 7 are disposed at the bottom of the device box, the device box includes an operation box 1 and an observation box 2, a control device is disposed on the outer side wall of the observation box 2, transparent observation windows 5 are disposed on four sides of the side wall of the observation box 2, an operation chassis 14 is disposed in the operation box 1, and a pressing detection device capable of being bidirectionally and online adjusted is disposed on the operation chassis 14.
Further, the pressfitting detection device include pressfitting ware 16, clamping jaw 25, 2D 3D camera module 32, detect adjusting device and two-way transmission device and mutually support the setting, pressfitting ware 16 set up on operation chassis 14's chassis flat board 33, 2D 3D camera module 32 through camera fixed plate 40 with detect adjusting device lateral wall on be connected, clamping jaw 25 through electronic micromatic setting with detect adjusting device lateral wall on link, detect adjusting device include X axle adjusting beam 17, Y axle adjusting beam 22 and Z axle adjusting lever 19, chassis flat board 33 both ends symmetry be equipped with perpendicular vertical side grillage 15 perpendicularly, the both ends of X axle adjusting beam 17 are fixed respectively on the top of vertical side grillage 15, Y axle adjusting beam 22 level fix on the vertical side grillage 15 of X axle adjusting beam 17 one end department, the Z-axis adjusting rod 19 is vertically arranged on an underframe flat plate 33 at the joint of the X-axis adjusting beam 17 and the Y-axis adjusting beam 22, the X-axis adjusting beam 17 and the Y-axis adjusting beam 22 are respectively provided with an adjusting crawler 23, the X-axis adjusting beam 17, the Y-axis adjusting beam 22 and the Z-axis adjusting rod 19 are respectively provided with an adjusting driving motor 24, and the on-line detection device combining the lamination detection device special for the millimeter-wave radar device and the bidirectional transmission is adopted, so that the machine head capable of effectively realizing the adjustment movement in three directions of X, Y, Z axes can be effectively carried out on the machine head judged by action, pressure and visual inspection, the control and adjustment of the variation rate of the distance of the pressure and speed can be effectively realized, and the mutual matching of the laminator mechanism can be realized, the lamination and detection integrated production of the vehicle-mounted radar device and the intelligent degree of the equipment.
Further, electronic micromatic setting motor 21 and clamping jaw rotating electrical machines 41 about including the clamping jaw, clamping jaw about motor 21 pass through the fixed block and be connected with fixed plate 20 one end on the X axle adjusting beam 17 lateral wall, clamping jaw rotating electrical machines 41 fix on the telescopic shaft of clamping jaw about motor 21, clamping jaw 25 fix on clamping jaw rotating electrical machines 41's rotation axis, through the fine motion regulation of upper and lower and rotatory two angles, can effectual increase clamping jaw 25 snatch the precision, effectual improve equipment snatchs and the efficiency of work.
Furthermore, the two sides of the fixing plate 20 are fixedly connected with the camera fixing plate 40 through a plurality of groups of adjusting rods, the adjusting rods are telescopic adjusting rods with adjustable lengths, the positions of the 3D camera modules can be adjusted according to the size adaptability of the workpiece, and the information of the workpiece can be monitored and collected more accurately.
Further, fixed plate 20 on be equipped with the protection casing of U type structure, can enough effectually carry out effectual protection to clamping jaw 25 and 3D camera module, the safe intensity when can increase the use again, the effectual staff mistake of avoiding bumps and receives the injury.
Further, two-way transmission device include assembly line track, track support 31 and carrier mobile device, track support 31 establish to two-layer, all be equipped with the assembly line track on every layer of track support 31, the assembly line track include drive belt 26 and drive wheel 27, drive wheel 27 establish to two sets of, every group drive wheel 27 establishes to a plurality ofly, drive wheel 27 fix respectively on track support 31 inside wall, connect through drive belt 26 between a plurality of drive wheels 27, drive wheel 27 be connected through drive pivot and the transmission driving motor 28 on the track support 31, the mobile carrier device set up on the assembly line track, but through two-way transmission's assembly line track, can effectual improvement work piece assembly line operation's efficiency, more convenient production and operation.
Further, the carrier moving device comprises a carrier disc 30, a pushing module 36 and a blocking module 34, the lower surface of the carrier disc 30 is directly connected with the transmission belt 26, the pushing module 36 and the blocking module 34 are respectively arranged at two ends of the carrier disc 30, side pushing modules 29 are arranged on the side walls of the carrier disc 30, a workpiece fixing disc 35 is arranged on the upper surface of the carrier disc 30, and the workpiece fixing disc 35 is fixed on the carrier disc 30 through a detachable screw rod.
Further, the track support 31 inner wall both ends of assembly line track top be equipped with guide block 39 respectively, the guide way 37 of guide block 39 lateral wall in be equipped with multiunit direction and change roller 38, and the angle of inclination of guide block 39 establishes to 10 degrees, can effectually carry out effectual guiding nature to carrier dish 30 and remove, make carrier dish 30 place more conveniently, improve the efficiency of work.
Further, the control device comprises a display 4 and an operation keyboard 6, the display 4 is connected with the operation keyboard 6 through a connecting rod 3, and the display 4 is connected with the side wall of the observation box body 2 through a rotary shaft rod bolt.
Further, operation box 1 on be equipped with heating panel 13, heating panel 13 and operation box 1 between be connected through the buckle formula connected mode of fixed buckle 9, heating panel 13 on be equipped with a plurality of louvres 10, all be equipped with radiator fan 12 on every louvre 10, and louvre 10 department all is equipped with dust screen 11, four landing legs 7 departments of equipment bottom half still be equipped with removal gyro wheel 8, through detachable heating panel 13, can reach effectual realization to the radiating operation of equipment, can make things convenient for the dismantlement of heating panel 13 again to wash and change, simple structure's buckle formula connected mode, the operation of being more convenient for improves the convenience of later maintenance, reduces the cost of maintenance, improves the efficiency of maintenance.
When specifically implementing, at first material loading on the station forward, then fix a position through the smelting tool transmission band, carry out the jacking location to the smelting tool, then through two-dimensional code scanning Mark point location, carry out crimping treatment and needle point detection to the product in proper order, after accomplishing descend the processing with the smelting tool, if qualified: directly discharging, if the product is unqualified: and after the detection is carried out by the manipulator, the detection is carried out next step after the detection is put into a box to be detected.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention as claimed.
Claims (10)
1. The utility model provides a vehicle-mounted millimeter wave radar device pressfitting check out test set, includes the equipment box, its characterized in that: the equipment bottom half be equipped with four landing legs, the equipment box include operation box and observation box, observation box lateral wall on be equipped with controlling means, observation box lateral wall four sides all be equipped with transparent observation window, the operation box in be equipped with the operation chassis, the operation chassis on be equipped with but two-way online adjustable pressfitting detection device.
2. The pressing detection device of the vehicle-mounted millimeter wave radar device according to claim 1, wherein the pressing detection device comprises a pressing device, a clamping jaw, a 2D/3D camera module, a detection adjustment device and a bidirectional transmission device, the detection adjustment device and the bidirectional transmission device are mutually matched, the pressing device is arranged on an underframe plate of an operation underframe, the 2D/3D camera module is connected with the side wall of the detection adjustment device through a camera fixing plate, the clamping jaw is connected with the side wall of the detection adjustment device through an electric fine adjustment device, the detection adjustment device comprises an X-axis adjustment beam, a Y-axis adjustment beam and a Z-axis adjustment rod, vertical side plate frames are symmetrically and vertically arranged at two ends of the underframe plate, two ends of the X-axis adjustment beam are respectively fixed at the top ends of the vertical side plate frames, the Y-axis adjustment beam is horizontally fixed on the vertical side plate frames at one end of the X-axis adjustment beam, the Z-axis adjusting rod is vertically arranged on an underframe flat plate at the joint of the X-axis adjusting beam and the Y-axis adjusting beam, the X-axis adjusting beam and the Y-axis adjusting beam are both provided with adjusting tracks, and the X-axis adjusting beam, the Y-axis adjusting beam and the Z-axis adjusting rod are all provided with adjusting driving motors.
3. The pressing detection equipment of the vehicle-mounted millimeter wave radar device according to claim 2, wherein the electric fine adjustment device comprises a clamping jaw up-down motor and a clamping jaw rotating motor, the clamping jaw up-down motor is connected with one end of a fixing plate on the side wall of the X-axis adjusting beam through a fixing block, the clamping jaw rotating motor is fixed on a telescopic shaft of the clamping jaw up-down motor, and the clamping jaw is fixed on a rotating shaft of the clamping jaw rotating motor.
4. The on-vehicle millimeter wave radar device press-fit detection device of claim 3, wherein the other end of the fixing plate is fixedly connected with the camera fixing plate through a plurality of groups of adjusting rods, and the adjusting rods are telescopic adjusting rods with adjustable lengths.
5. The on-vehicle millimeter wave radar device press-fit detection device of claim 3, wherein a protection cover with a U-shaped structure is arranged on the fixing plate.
6. The device for detecting press fit of millimeter wave radar components on a vehicle as claimed in claim 2, wherein the two-way transmission device comprises a track, a track support and a carrier moving device, the track support is formed in two layers, a track is formed on each track support, the track comprises a transmission belt and a plurality of transmission wheels, the transmission wheels are formed in two groups, each group of transmission wheels is formed in a plurality, the transmission wheels are respectively fixed on the inner side wall of the track support, the transmission wheels are connected with each other through the transmission belt, the transmission wheels are connected with a transmission driving motor on the track support through a driving rotating shaft, and the carrier moving device is arranged on the track.
7. The pressing detection equipment for the vehicle-mounted millimeter wave radar devices according to claim 6, wherein the carrier moving device comprises a carrier disc, a pushing module and a blocking module, the lower surface of the carrier disc is directly connected with the transmission belt, the pushing module and the blocking module are respectively arranged at two ends of the carrier disc, the side wall of the carrier disc is provided with a side pushing module, the upper surface of the carrier disc is provided with a workpiece fixing disc, and the workpiece fixing disc is fixed on the carrier disc through a detachable screw rod.
8. The on-vehicle millimeter wave radar device pressing detection equipment of claim 6, wherein guide blocks are respectively arranged at two ends of the inner wall of the rail support above the assembly line rail, a plurality of groups of guide rollers are arranged in the guide grooves of the side walls of the guide blocks, and the inclination angle of the guide blocks is set to 10 degrees.
9. The on-vehicle millimeter radar device press-fit detection device according to claim 1, wherein the control device comprises a display and an operation keyboard, the display is connected with the operation keyboard through a connecting rod, and the display is connected with the side wall of the observation box body through a rotary shaft rod bolt.
10. The pressing detection equipment for the vehicle-mounted millimeter wave radar device according to claim 1, wherein a heat dissipation plate is arranged on the operation box body, the heat dissipation plate is connected with the operation box body in a buckling connection mode, a plurality of heat dissipation holes are formed in the heat dissipation plate, a heat dissipation fan is arranged on each heat dissipation hole, a dust screen is arranged at each heat dissipation hole, and moving rollers are further arranged at four support legs at the bottom of the equipment box body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110011473.1A CN112658143A (en) | 2021-01-06 | 2021-01-06 | Vehicle-mounted millimeter wave radar device pressing detection equipment |
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| CN202110011473.1A CN112658143A (en) | 2021-01-06 | 2021-01-06 | Vehicle-mounted millimeter wave radar device pressing detection equipment |
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| CN112658143A true CN112658143A (en) | 2021-04-16 |
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