CN112945151A - Detection apparatus for punching press shielding part - Google Patents
Detection apparatus for punching press shielding part Download PDFInfo
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- CN112945151A CN112945151A CN202110149707.9A CN202110149707A CN112945151A CN 112945151 A CN112945151 A CN 112945151A CN 202110149707 A CN202110149707 A CN 202110149707A CN 112945151 A CN112945151 A CN 112945151A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
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Abstract
The application relates to a detection device for a stamping shielding part, which comprises a workbench, wherein a feeding conveyer belt is arranged on the workbench, a detection assembly is arranged at an outlet of the feeding conveyer belt, a discharging conveyer belt is arranged on one side, away from the feeding conveyer belt, of the detection assembly, the feeding conveyer belt and the discharging conveyer belt are in the same straight line, and a taking assembly for taking a shielding cover is arranged above the detection assembly; the detection assembly comprises a detection table arranged on the upper surface of the workbench, infrared emitters arranged on the upper surface of the detection table and infrared receivers arranged on the upper surface of the detection table, the infrared emitters are at least provided with two infrared emitters, and the height difference between the emitting ports of the two infrared emitters is equal to the thickness of the shielding case. The application has the effect of improving the detection efficiency and the detection precision of the detection device.
Description
Technical Field
The application relates to the field of shielding piece detection, in particular to a detection device for a stamping shielding piece.
Background
Shields are tools used to shield electronic signals. The function is to shield the influence of external electromagnetic wave on the internal circuit and the outward radiation of the internally generated electromagnetic wave.
Referring to fig. 1, a conventional electromagnetic shielding component, which is a shielding case mainly used for a router, includes a flat-plate-shaped cover body 50 and support legs 51 disposed at four corners of the bottom of the cover body 50, and a plurality of notches 52 are formed in the cover body 50 after punching.
The shielding case is required to be tightly attached to communication equipment when in use so as to better shield electromagnetic interference, but the shielding case is thin and is made of copper albo-marginate, and bending deformation is easy to occur in the processing process and the transportation process, so a detection device for detecting the flatness of the shielding case is generally arranged at the end of the processing process of the shielding case.
The existing related shielding cover adopts the marble which is processed smoothly when in detection, the shielding cover is manually placed on the marble, and a gap is formed between the bottom surface of the cover body of the shielding cover and the surface of the marble when the observation is carried out, so that the detection precision of the detection means is low, and the efficiency is low.
With respect to the related art described above, the inventor considers that the detection efficiency of the shield case is low and the detection accuracy is not high in the related art.
Disclosure of Invention
In order to improve efficiency and the precision that shield cover plane degree detected, this application provides a detection device of punching press shielding part.
The application provides a detection device of punching press shielding part adopts following technical scheme:
a detection device for an electromagnetic shielding part of communication equipment comprises a workbench, wherein a feeding conveying belt is arranged on the workbench, a detection assembly is arranged at an outlet of the feeding conveying belt, a discharging conveying belt is arranged on one side, away from the feeding conveying belt, of the detection assembly, the feeding conveying belt and the discharging conveying belt are in the same straight line, and a taking assembly for taking a shielding case is arranged above the detection assembly;
the detection assembly comprises a detection table arranged on the upper surface of the workbench, an infrared transmitter arranged on the upper surface of the detection table and an infrared receiver arranged on the upper surface of the detection table, wherein the infrared transmitter is at least provided with two infrared transmitters, and the height difference between the transmitting ports of the two infrared transmitters is equal to the thickness of the shielding case.
By adopting the technical scheme, the shielding cover is automatically taken from the feeding conveyor belt to the detection assembly and from the detection assembly to the discharging conveyor belt by the taking assembly, so that manual operation is replaced, the production automation degree is improved, and the production efficiency is further improved; moreover, the subassembly of taking has reduced the deformation condition of the shield cover that the artifical in-process of taking probably produced, and then guarantees the precision of shield cover in the testing process, utilizes infrared laser to detect also more accurately to further improve the accuracy that the shield cover plane degree detected.
Preferably, the subassembly of taking includes vertical setting at the braced frame of workstation upper surface, two sliding blocks that vertical slip setting on braced frame respectively, level setting transfer roof beam, the driving motor of setting on braced frame and fixed cover establish the spliced pole on the driving motor output shaft between two sliding blocks, the length direction of the parallel feeding conveyer belt of length direction of transferring the roof beam, it slides along self length direction and sets up on two sliding blocks, along the even interval of length direction of transferring the roof beam is equipped with a plurality of suction nozzles, the length direction of the perpendicular feeding conveyer belt of driving motor's output shaft, it is equipped with the fixed axle to transfer the roof beam upper level, the fixed axle rotates the one end that sets up to keep away from motor output shaft at the spliced pole.
Through adopting the above-mentioned technical scheme, a concrete structure of subassembly of taking is provided, during the use, start driving motor, it rotates to drive the spliced pole, owing to shift the roof beam both can carry out the slip of vertical direction along the sliding block horizontal slip, sliding block itself can carry out the slip of vertical direction along braced frame again, thereby make to shift the motion trail that the roof beam has multi-direction multi-angle, so when the spliced pole is rotatory round driving motor's output shaft, the spliced pole drives to shift the roof beam and carries out pitch arc motion, and then make the suction nozzle carry out pitch arc motion, take the shield cover from the feeding conveyer belt and detect on detecting the bench, perhaps take the ejection of compact conveyer belt from detecting the shield cover that finishes detecting.
Preferably, a defective product removing assembly is arranged between the discharging conveying belt and the detecting assembly, the defective product removing assembly comprises a receiving table arranged on the workbench and a telescopic cylinder arranged on the upper surface of the workbench, the length direction of a piston rod of the telescopic cylinder is perpendicular to the length direction of the discharging conveying belt, a piston rod of the telescopic cylinder is fixedly connected with the receiving table, the receiving table is arranged in a sliding mode along the width direction of the workbench, and one end, far away from the telescopic cylinder, of the receiving table is arranged obliquely downwards.
Through adopting above-mentioned technical scheme, when the unqualified shield cover of detection subassembly detection, before the subassembly of taking takes the unqualified shield cover to the receiving station, telescopic cylinder starts, drive the receiving station motion, thereby place the shield cover below in advance with the one side of receiving station slope, the subassembly of taking places unqualified shield cover on the inclined plane of receiving station, then telescopic cylinder drives the receiving station and resets, unqualified shield cover then follows the inclined plane landing of receiving station down, adopt telescopic cylinder, realize that partial automation gets rid of unqualified product, effectively improve detection efficiency.
Preferably, the two infrared receivers are connected with a controller, and the controller and the telescopic cylinder are connected with an electromagnetic valve.
Through adopting above-mentioned technical scheme, when one of them infrared receiver did not receive the laser of infrared emitter transmission, then it is unqualified to represent the shield cover to with controller received signal, the solenoid valve is transmitted in the transmission after the controller has processed signal, then control telescopic cylinder drives the receiving station and remove, realize automated control, further effectively improved the efficiency that detects.
Preferably, the upper surface of the detection table is provided with a limiting hole for the support leg to be inserted, the limiting hole is matched with the support leg, and a gap is reserved between the bottom surface of the shielding case and the upper surface of the detection table.
Through adopting above-mentioned technical scheme, on the one hand detect this kind of settlement that adaptation shield cover that the platform can be better possesses the stabilizer blade, the stabilizer blade is inserted and is established and to be established the process that can make more steady acceptance detection of shield cover and take in spacing downthehole, make among the testing process more stable, moreover, the stabilizer blade makes the bottom surface of shield cover and is examined and leave certain clearance between the platform upper surface, thereby make infrared emitter can be better carry out the detection of plane degree to the bottom surface and the top surface of shield cover.
Preferably, a correcting assembly is further arranged between the feeding conveying belt and the detecting assembly, the correcting assembly comprises a correcting table and a plurality of limiting blocks arranged on the upper surface of the correcting table, and a placing groove for placing the shielding cover is formed between the limiting blocks.
Through adopting above-mentioned technical scheme, the stopper makes the position of shield cover put more stably to it is more accurate when the suction nozzle drives the shield cover and removes, thereby improves the stability and the accurate nature of testing process.
Preferably, a plurality of T-shaped grooves are formed in the upper surface of the correcting table, T-shaped blocks are arranged at the bottom ends of the limiting blocks and are arranged in the T-shaped grooves in a sliding mode, each limiting block is vertically provided with a locking bolt in a penetrating mode, and the bottom of each locking bolt is abutted to the T-shaped groove.
Through adopting above-mentioned technical scheme, the stopper can slide along the T-slot, and the locking bolt is used for fixing the stopper, and the aforesaid is set for the change size that the standing groove that forms between the messenger stopper can be convenient to the testing process of the shield cover of adaptation not unidimensional.
Preferably, the end of the feeding conveyor belt is provided with a flat block.
Through adopting above-mentioned technical scheme, when the shield cover transported the tip of feeding conveyer belt, the shield cover was on the flat piece is hugged closely to one side of flat piece to make the shield cover keep comparatively accurate direction and state before being about to be taken the subassembly and take on the correction subassembly, reduce follow-up absorption and put into the skew error in the determine module, further improve the accuracy nature of whole testing process.
Preferably, a plurality of infrared transmitters are arranged at the same transmitting height, and a plurality of infrared receivers are arranged corresponding to the infrared transmitters.
By adopting the technical scheme, the infrared emitters at the same height aim at detecting the planeness of one plane of the shielding case, and when the infrared emitters at the same height are provided with a plurality of infrared emitters, the infrared emitters detecting the same plane have a plurality of infrared rays, so that the bottom surface and the top surface of the shielding case are comprehensively detected, and the detection precision is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the efficiency of detection is improved by arranging the taking component for automatically taking the shielding case, and the top surface and the bottom surface of the shielding case are respectively detected by adopting infrared detection, so that the detection precision is improved;
2. the signal receiver is arranged to transmit signals to the controller, so that the electromagnetic valve is controlled, and the telescopic cylinder is further controlled, so that the receiving station is driven to recover unqualified shielding cases, the automation degree is effectively improved, and the detection efficiency is improved;
3. through setting up correction assembly and leveling piece, when the suction nozzle took the shield cover, guaranteed the stability of shield cover to guarantee the precision that detects.
Drawings
FIG. 1 is a background art diagram;
FIG. 2 is a schematic view of the overall structure of the detecting unit;
fig. 3 is a partially enlarged view of a portion a in fig. 2;
FIG. 4 is a diagram mainly used for showing the control logic between the infrared receiver and the telescopic cylinder;
fig. 5 is a partially enlarged view of a portion B in fig. 2.
Description of reference numerals: 1. a work table; 2. a feed conveyor belt; 3. a detection component; 31. a detection table; 32. an infrared emitter; 33. an infrared receiver; 4. a discharge conveyer belt; 5. taking the component; 51. a support frame; 52. a slider; 53. transferring the beam; 54. a drive motor; 55. connecting columns; 6. a suction nozzle; 531. a fixed shaft; 7. a defective removal assembly; 71. a receiving station; 72. a telescopic cylinder; 8. a controller; 9. an electromagnetic valve; 10. a limiting hole; 11. a correction component; 111. a correction table; 112. a limiting block; 12. a T-shaped slot; 13. locking the bolt; 14. flattening the whole block; 15. an extension block; 16. a straw.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
Referring to fig. 2, a detection apparatus for a stamped shield according to an embodiment of the present disclosure is disclosed. This detection device includes workstation 1 that the level set up, is equipped with feeding conveyer belt 2 and ejection of compact conveyer belt 4 along 1 length direction interval of workstation, and feeding conveyer belt 2 is in same straight line with ejection of compact conveyer belt 4.
Referring to fig. 2 and 3, a detecting assembly 3 is disposed between the discharging conveyor belt 4 and the feeding conveyor belt 2, the detecting assembly 3 includes a detecting table 31 fixedly disposed on the upper surface of the working table 1, an infrared emitter 32 disposed on the upper surface of the detecting table 31, and an infrared receiver 33 disposed on the upper surface of the detecting table 31, at least two infrared emitters 32 are disposed at the same height, in this embodiment, four infrared emitters 32 are disposed, four infrared receivers 33 are also disposed, wherein two infrared emitters 32 and corresponding infrared receivers 33 are higher in height for detecting the flatness of the upper surface of the shielding case, two higher infrared emitters 32 and corresponding infrared receivers 33 are disposed at the midpoint position of each side of the detecting table 31, and the remaining two lower infrared emitters 32 and corresponding infrared receivers 33 are disposed at four corners of the detecting table 31, the device is used for detecting the flatness of the bottom surface of the shielding case. The upper surface of the detection table 31 is vertically provided with the limiting hole 10 downwards, so that the shielding cover can be placed on the detection table 31 more stably and horizontally, and the detection accuracy is improved.
Referring to fig. 2 and 3, a defective product removing assembly 7 is disposed between the discharging conveyor belt 4 and the detecting assembly 3, the defective product removing assembly 7 includes a receiving table 71 disposed on the workbench 1 and a telescopic cylinder 72 disposed on the upper surface of the workbench 1, a length direction of a piston rod of the telescopic cylinder 72 is perpendicular to a length direction of the discharging conveyor belt 4, the piston rod of the telescopic cylinder 72 is fixedly connected with the receiving table 71, the receiving table 71 is slidably disposed along a width direction of the workbench 1, and an inclined surface inclined downward is disposed at one end of the receiving table 71 away from the telescopic cylinder 72.
Referring to fig. 4, the controller 8 is connected to the infrared receiver 33, and the solenoid valve 9 is connected between the controller 8 and the telescopic cylinder 72. When the infrared ray intensity received by the infrared receiver 33 is weaker or the infrared ray cannot be received, namely, the surface of the shielding case is bent to a certain degree, after the controller 8 receives the signal, the signal is transmitted to the electromagnetic valve 9 in time, and then the electromagnetic valve 9 is controlled to control the telescopic cylinder 72 to operate, so that the inclined plane of the receiving table 71 is located below the vertical position where the shielding case is put down, the shielding case can fall on the inclined plane, and then the shielding case slides down through the inclined plane, and a recovery box for containing unqualified shielding cases is arranged on the workbench 1. Then the telescopic cylinder 72 drives the receiving table 71 to automatically reset, thereby normally receiving qualified products.
Referring to fig. 2, be equipped with the subassembly 5 of taking that is used for shifting the shield cover between feeding conveyer belt 2 and ejection of compact conveyer belt 4, the subassembly 5 of taking includes vertical setting at the braced frame 51 of workstation 1 upper surface, two sliding blocks 52 of vertical slip setting on braced frame 51 respectively, the level sets up the transfer roof beam 53 between two sliding blocks 52, the spliced pole 55 of driving motor 54 output shaft is established to driving motor 54 and fixed cover that set up on braced frame 51, the length direction of the parallel feeding conveyer belt 2 of length direction of transfer roof beam 53, the slip setting of transfer roof beam 53 on two sliding blocks 52 along self length direction, the even interval of length direction along transfer roof beam 53 is equipped with a plurality of suction nozzles 6, specifically do: a plurality of extension blocks 15 are uniformly arranged along the length direction of the transfer beam 53 at intervals, the suction nozzles 6 are vertically and fixedly connected to the extension blocks 15, each suction nozzle 6 is communicated with a suction pipe 16, and one end of each suction pipe 16, which is far away from the suction nozzle 6, is communicated with a negative pressure pump to provide suction for the suction nozzle 6; the driving motor 54 is a servo motor, the output shaft of the driving motor 54 is perpendicular to the length direction of the feeding conveyer belt 2, the transfer beam 53 is horizontally provided with a fixed shaft 531, the axis of the fixed shaft 531 is perpendicular to the length direction of the workbench 1, and the fixed shaft 531 is rotatably arranged at one end of the connecting column 55 far away from the output shaft of the driving motor 54 through a bearing.
Referring to fig. 1, tip at feeding conveyer belt 2 is equipped with the leveling block 14, leveling block 14 fixed connection is between two longerons of 2 length direction of feeding conveyer belt, leveling block 14's bottom and feeding conveyer belt 2 upper surface leave certain clearance, when the tip of feeding conveyer belt 2 is transported to the shield cover, the shield cover closely pastes on leveling block 14 towards one side of leveling block 14, thereby make the shield cover keep comparatively accurate direction and state when being about to be taken by subassembly 5, reduce follow-up absorption and put into the skew error in the determine module 3, further improve whole testing process's accuracy nature.
Referring to fig. 2 and 5, a correcting assembly 11 is provided on the table 1 at the discharge opening of the feeding conveyor belt 2. The correction assembly 11 is including setting up the correction platform 111 on workstation 1 and setting up a plurality of stoppers 112 on correction platform 111, specifically do, four T-slot 12 have been seted up to correction platform 111 upper surface for the cross, it is equipped with stopper 112 all to slide on every T-slot 12, stopper 112 slides through the T-shaped piece of bottom body coupling and sets up in T-slot 12, equal vertical the lining up is equipped with the screw hole on every stopper 112, screw hole female connection has locking bolt 13, constitute the space of placing that is used for placing the screen cover between a plurality of stoppers 112, utilize T-slot 12 and locking bolt 13 can conveniently adjust the size of placing the space, the suitability has been improved.
The implementation principle of the detection device for the stamping shielding part in the embodiment of the application is as follows: the shielding cover is firstly transported by the feeding conveyer belt 2, the end part of the feeding conveyer belt 2 is slightly blocked by the leveling block 14, then the shielding cover is taken by the taking component 5 to the correcting component 11 and placed in a placing space formed by a plurality of limiting blocks 112, and the final step of standardizing the stable state is completed when the shielding cover enters the detecting component 3;
the component 5 of taking continues to utilize suction nozzle 6 to take the shield cover to detect the platform 31, make the stabilizer blade put in spacing hole 10, infrared emitter 32 all launches the infrared ray, infrared receiver 33 is responsible for receiving the infrared ray, then give controller 8 with light intensity signal transmission, if the infrared ray intensity that controller 8 received weakens or does not receive the signal, controller 8 sends the signal to solenoid valve 9, control telescopic cylinder 72 drags receiving station 71, make the inclined plane of receiving station 71 be located the position that the shield cover is about to fall in advance, then the component 5 of taking still takes the unqualified shield cover automatically, put it on the inclined plane, then unqualified shield cover then slides down along the inclined plane, then telescopic cylinder 72 drives receiving station 71 and resets. If the intensity of the infrared ray received by the infrared receiver 33 is not changed, the normal operation is performed.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A detection device of punching press shielding member, includes workstation (1), its characterized in that: a feeding conveying belt (2) is arranged on the workbench (1), a detection assembly (3) is arranged at an outlet of the feeding conveying belt (2), a discharging conveying belt (4) is arranged on one side, away from the feeding conveying belt (2), of the detection assembly (3), the feeding conveying belt (2) and the discharging conveying belt (4) are located on the same straight line, and a taking assembly (5) for taking the shielding case is arranged above the detection assembly (3);
the detection assembly (3) is including setting up at workstation (1) upper surface examine test table (31), setting up at the infrared emitter (32) of examining test table (31) upper surface and setting up at the infrared receiver (33) of examining test table (31) upper surface, infrared emitter (32) are equipped with two, two the difference in height between the transmission mouth of infrared emitter (32) equals the thickness of shield cover.
2. The apparatus for detecting a stamped shield of claim 1, wherein: the taking assembly (5) comprises a supporting frame (51) vertically arranged on the upper surface of the workbench (1), two sliding blocks (52) vertically arranged on the supporting frame (51) in a sliding mode respectively, a transfer beam (53) horizontally arranged between the two sliding blocks (52), a driving motor (54) arranged on the supporting frame (51) and a connecting column (55) fixedly arranged on an output shaft of the driving motor (54), the length direction of the transfer beam (53) is parallel to the length direction of the feeding and conveying belt (2), the transfer beam (53) is arranged on the two sliding blocks (52) in a sliding mode along the length direction of the transfer beam (53), a plurality of suction nozzles (6) are uniformly arranged in the length direction of the transfer beam (53) at intervals, the output shaft of the driving motor (54) is perpendicular to the length direction of the feeding and conveying belt (2), a fixed shaft (531) is horizontally arranged on the transfer beam (53), the fixed shaft (531) is rotatably arranged at one end of the connecting column (55) far away from the output shaft of the motor.
3. The apparatus for detecting a stamped shield of claim 1, wherein: the discharging conveying belt device is characterized in that a defective product removing assembly (7) is arranged between the discharging conveying belt (4) and the detecting assembly (3), the defective product removing assembly (7) comprises a receiving table (71) arranged on the workbench (1) and a telescopic cylinder (72) arranged on the upper surface of the workbench (1), the length direction of a piston rod of the telescopic cylinder (72) is perpendicular to the length direction of the discharging conveying belt (4), a piston rod of the telescopic cylinder (72) is fixedly connected with the receiving table (71), the receiving table (71) is arranged in a sliding mode along the width direction of the workbench (1), and one end, far away from the telescopic cylinder (72), of the receiving table (71) is arranged in an inclined mode downwards.
4. A stamped shield detection apparatus according to claim 3, wherein: the infrared receivers (33) are connected with a controller (8), and the controller (8) and the telescopic cylinder (72) are connected with an electromagnetic valve (9).
5. The apparatus for detecting a stamped shield of claim 1, wherein: the upper surface of the detection table (31) is provided with a limiting hole (10) for the support leg to be inserted, the limiting hole (10) is matched with the support leg, and a gap is reserved between the bottom surface of the shielding case and the upper surface of the detection table (31).
6. The apparatus of claim 5, wherein: still be equipped with between feeding conveyer belt (2) and detection component (3) and rectify subassembly (11), rectify subassembly (11) including rectify platform (111) and set up a plurality of stopper (112) at rectify platform (111) upper surface, a plurality of stopper (112) between constitute the standing groove that is used for placing the shield cover.
7. The apparatus of claim 6, wherein: a plurality of T-shaped grooves (12) are formed in the upper surface of the correcting table (111), T-shaped blocks are arranged at the bottom ends of the limiting blocks (112), the T-shaped blocks are arranged in the T-shaped grooves (12) in a sliding mode, each limiting block (112) is vertically provided with a locking bolt (13) in a penetrating mode, and the bottom of each locking bolt (13) is abutted to the T-shaped groove (12).
8. The apparatus for detecting a stamped shield of claim 7, wherein: the end part of the feeding conveyer belt (2) is provided with a flat block (14).
9. The apparatus for detecting a stamped shield of claim 1, wherein: the infrared transmitters (32) at the same transmitting height are provided with a plurality of infrared receivers (33), and the corresponding infrared transmitters (32) are also provided with a plurality of infrared receivers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149707.9A CN112945151B (en) | 2021-02-03 | 2021-02-03 | Detection apparatus for punching press shielding part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149707.9A CN112945151B (en) | 2021-02-03 | 2021-02-03 | Detection apparatus for punching press shielding part |
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| CN112945151A true CN112945151A (en) | 2021-06-11 |
| CN112945151B CN112945151B (en) | 2022-03-22 |
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| CN202110149707.9A Active CN112945151B (en) | 2021-02-03 | 2021-02-03 | Detection apparatus for punching press shielding part |
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| CN (1) | CN112945151B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114985308A (en) * | 2022-06-20 | 2022-09-02 | 东莞市长讯精密技术有限公司 | Efficient shielding case flatness detection device and detection method and shielding case packaging equipment |
| CN116008713A (en) * | 2023-02-22 | 2023-04-25 | 中国人民解放军陆军工程大学 | Electromagnetic interference detection system of unmanned aerial vehicle flight control system |
| CN116460051A (en) * | 2023-04-19 | 2023-07-21 | 东莞市鼎通精密科技股份有限公司 | Shielding frame detection device |
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| CN114985308B (en) * | 2022-06-20 | 2023-03-10 | 东莞市长讯精密技术有限公司 | Efficient shielding case flatness detection device and detection method and shielding case packaging equipment |
| CN116008713A (en) * | 2023-02-22 | 2023-04-25 | 中国人民解放军陆军工程大学 | Electromagnetic interference detection system of unmanned aerial vehicle flight control system |
| CN116460051A (en) * | 2023-04-19 | 2023-07-21 | 东莞市鼎通精密科技股份有限公司 | Shielding frame detection device |
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