CN114252668A

CN114252668A - Intelligent automatic preheating test shielding machine

Info

Publication number: CN114252668A
Application number: CN202111640687.1A
Authority: CN
Inventors: 吴洪斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-03-29

Abstract

The invention relates to an intelligent automatic preheating test shielding machine in the technical field of electronic test, which comprises a shielding box, a rotating mechanism, an electric control mechanism and a test mechanism, wherein the rotating mechanism comprises a turntable, a conductive sliding ring and a rotary cylinder, the conductive sliding ring is positioned in the middle of the turntable, the electric control mechanism comprises an electric control box and an electric control assembly for preheating, the test mechanism comprises a first test unit and a second test unit, the surface of the shielding box is provided with a lifting cylinder for pneumatically lifting the shielding box, and when the first test unit is in test, the second test unit starts preheating and supplying power, so that the power supply preheating time of a test product is effectively saved, the working efficiency is improved, and the manufacturing cost is also reduced; the shielding case adopts pneumatic lift mode, and when the test was accomplished to the printed circuit board in the shielding case, the shielding case was pneumatic through the lift cylinder and is risen, and then first test unit and second test unit pass through the rotatory change position of carousel, and the uninterrupted power supply through the electric cabinet in the testing process.

Description

Intelligent automatic preheating test shielding machine

Technical Field

The invention relates to the technical field of electronic testing, in particular to an intelligent automatic preheating testing shielding machine.

Background

(PCBA) printed circuit board, also known as printed circuit board, the printed circuit board has compatibility to PCBAs of different sizes, can be suitable for medium-sized wireless products, such as: the most widely used at present are manufacturers of WIFI products, which perform power, sensitivity, throughput tests and the like in shielded boxes, and printed circuit boards are important electronic components, support bodies for electronic components, and providers for line connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing techniques.

However, under the condition of not shielding, the electronic equipment can be affected by strong electromagnetic interference sources such as direct lightning or indirect lightning, so that the equipment cannot work or works abnormally, and is damaged in the most serious condition, which is a common electromagnetic interference appearance.

At present, most of test shielding machines on the market adopt an electric lifting mode for shielding detection, and on the other hand, a jig does not have a preheating function during shielding test.

Disclosure of Invention

The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.

Automatic test shielding machine that preheats of intelligence, including the shielded cell, rotary mechanism, electrical control mechanism and accredited testing organization, rotary mechanism includes the carousel, conductive sliding ring and revolving cylinder, revolving cylinder's upper end is connected with conductive sliding ring, conductive sliding ring is located the middle part of carousel, conductive sliding ring's outside is equipped with the guard shield, the shielded cell is located the rear end of carousel, the lower extreme of carousel is equipped with wear strip, electrical control mechanism includes the electric cabinet and is used for carrying out the automatically controlled subassembly of preheating work, accredited testing organization comprises first test element and second test element, the lift cylinder that is used for pneumatic lift shielded cell is installed to the right flank of shielded cell, when revolving cylinder produces the driving force to conductive sliding ring, conductive sliding ring rotates the carousel, through the pneumatic lift shielded cell of lift cylinder, make the shielded cell shield the test to first test element and second test element respectively.

Furthermore, the electric cabinet is internally provided with a support frame, one end of the support frame is provided with a support roller, and the top of the support roller is attached to the bottom of the turntable.

Further, first test unit and second test unit all are equipped with the tool, and the surface of carousel is equipped with to pair the mounting groove of installation with the tool.

Furthermore, the interior of the shielding box is provided with a filter interface for frequency filtering, the filter interface consists of a first interface module and a second interface module, the shielding effect is very good in the frequency range of 400MHz to 8GHz, mutual interference can be prevented, and therefore, the shielding box is an ideal tool for testing wireless communication products, and equipment and modules equipped with various standard wireless interfaces can be measured, wherein the equipment and modules comprise ISM, GSM, and,

WCDMA, UMTS, WLAN, WiMAX, etc.; on the other hand, the PCBAs with different sizes have compatibility, and are suitable for medium-sized wireless products, such as: routers, wireless monitors, set-top boxes, small wireless servers, and the like are currently most widely used by manufacturers of WIFI products to perform power, sensitivity, and throughput tests in shielded boxes.

Furthermore, a plurality of electromagnetic valves used for being matched with different circuits for control are arranged inside the electric cabinet, expected control is achieved by matching the electromagnetic valves with different circuits, control precision and flexibility can be guaranteed, a bottom plate is arranged at the bottom of the electric cabinet, and a cushion block used for supporting the rotary cylinder is arranged between the bottom plate and the rotary cylinder.

Furthermore, the rear surface of electric cabinet installs the guard plate that is used for protecting the electric cabinet, and the upper surface of electric cabinet is equipped with the control cabinet, and the upper surface mounting of control cabinet has control button, and the both ends of control cabinet are equipped with the protection grating respectively.

The invention can be used for carrying out calibration test on the PCBA of the Wifi semi-finished product, throughput test on the WiFi finished product, transmission and receiving power test on the PCBA of the wireless product, wireless equipment test, dual-frequency route calibration test, WLANIEEE802.11A test, 16WIMAX test, Cellular test, PCS test, GSM test, 3G/4G/5G/6G test, Bluetooth test, RFID test, ZigBee test, GPS test, PDA test and interphone test.

Compared with the prior art, the invention has the beneficial effects that:

1. when the first test unit is in testing, the second test unit starts preheating and supplying power, and two or more products run simultaneously, so that the preheating time of the power supply of the test products is effectively saved, the working efficiency is improved, and the manufacturing cost is reduced;

2. the shielding case adopts pneumatic lift mode, and when the test was accomplished to the printed circuit board in the shielding case, the shielding case was pneumatic through the lift cylinder and is risen, and then first test unit and second test unit pass through the rotatory change position of carousel, and the uninterrupted power supply through the electric cabinet in the testing process.

Drawings

FIG. 1 is a schematic view of a front perspective structure of an intelligent automatic preheating test shielding machine according to the present invention;

FIG. 2 is an exploded view of the intelligent automatic preheat test shield machine of the present invention;

fig. 3 is an enlarged schematic view of a part of the structure in fig. 2.

The reference numbers indicate: the device comprises a shielding box 1, a rotary table 2, a conductive slip ring 3, a rotary cylinder 4, an electric control box 5, an electric control assembly 6, a first test unit 7, a second test unit 8, a lifting cylinder 9, a first interface module 10, a second interface module 11, a jig 12, a mounting groove 13, an electromagnetic valve 14, a bottom plate 15, a cushion block 16, a protection plate 17, a support frame 18, a support roller 19, a console 20, a control button 21, a protection grating 22, a wear-resistant strip 23 and a shield 24.

Detailed Description

The intelligent automatic preheating test shielding machine of the invention is further described in detail with reference to the accompanying drawings and the specific embodiments.

Please refer to fig. 1-3, the intelligent automatic preheating testing shielding machine includes a shielding box 1, a rotating mechanism, an electric control mechanism and a testing mechanism, the rotating mechanism includes a turntable 2, a conductive slip ring 3 and a revolving cylinder 4, the upper end of the revolving cylinder 4 is connected with the conductive slip ring 3, the conductive slip ring 3 is located in the middle of the turntable 2, a shield 24 is arranged outside the conductive slip ring 3, the shielding box 1 is located at the rear end of the turntable 2, a wear-resistant strip 23 is arranged at the lower end of the turntable 2, the electric control mechanism includes an electric control box 5 and an electric control component 6 for preheating, the testing mechanism is composed of a first testing unit 7 and a second testing unit 8, and a lifting cylinder 9 for pneumatically lifting the shielding box 1 is installed on the right side surface of the shielding box 1.

When the rotary cylinder 4 generates a driving force on the conductive slip ring 3, the conductive slip ring 3 rotates the turntable 2, and the shielding box 1 is pneumatically lifted through the lifting cylinder 9, so that the shielding box 1 respectively performs shielding tests on the first testing unit 7 and the second testing unit 8; a filter interface for frequency filtering is arranged in the shielding box 1, and the filter interface is composed of a first interface module 10 and a second interface module 11; first test unit 7 and second test unit 8 all are equipped with tool 12, and the surface of carousel 2 is equipped with the mounting groove 13 of pairing the installation with tool 12.

A plurality of electromagnetic valves 14 used for being matched with different circuits for control are arranged in the electric cabinet 5, the electromagnetic valves 14 can be matched with different circuits for realizing expected control, the control precision and flexibility can be ensured, a bottom plate 15 is arranged at the bottom of the electric cabinet 5, and a cushion block 16 used for supporting the rotary cylinder 4 is arranged between the bottom plate 15 and the rotary cylinder 4; the rear surface mounting of electric cabinet 5 has the guard plate 17 that is used for protecting electric cabinet 5, and the internally mounted of electric cabinet 5 has support frame 18, and the upper end of support frame 18 is equipped with supporting roller 19, and supporting roller 19's top and the bottom laminating of carousel 2, the electric cabinet 5 upper surface are equipped with control cabinet 20, and control cabinet 20's last surface mounting has control button 21, and control cabinet 20's both ends are equipped with protection grating 22 respectively.

When the device is used, the electric control box 5 is used for supplying power continuously, the electric control assembly 6 is used for preheating the undetected jig 12, when the printed circuit board in the shielding box 1 is tested, the shielding box 1 is lifted pneumatically through the lifting cylinder 9, then the first testing unit 7 and the second testing unit 8 rotate and change positions through the turntable 2, and the effect that two or more products run simultaneously is achieved.

Through rotary cylinder 4 to the sliding ring 3 that leads electricity generation motive force, make the sliding ring 3 that leads electricity rotate carousel 2, when carousel 2 rotated, through the top of supporting roller 19 and the bottom laminating of carousel 2, supplementary carousel 2 rotated.

The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments thereof, and is not intended to limit the invention to the particular forms disclosed. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as the protection scope of the invention.

Claims

1. Intelligent automatic preheating test shielding machine, including shielded cell, rotary mechanism, electric control mechanism and accredited testing organization, its characterized in that: the rotary mechanism comprises a rotary table, a conductive sliding ring and a rotary cylinder, the upper end of the rotary cylinder is connected with the conductive sliding ring, the conductive sliding ring is located in the middle of the rotary table, a protective cover is arranged outside the conductive sliding ring, a shielding box is located at the rear end of the rotary table, a wear-resistant strip is arranged at the lower end of the rotary table, the electric control mechanism comprises an electric cabinet and an electric control assembly used for preheating, the testing mechanism comprises a first testing unit and a second testing unit, a lifting cylinder used for pneumatically lifting the shielding box is installed on the right side face of the shielding box, when the rotary cylinder generates driving force for the conductive sliding ring, the conductive sliding ring rotates the rotary table, and the shielding box is pneumatically lifted through the lifting cylinder, so that the shielding box carries out shielding testing on the first testing unit and the second testing unit respectively.

2. The intelligent automatic preheating test shielding machine according to claim 1, characterized in that: the inside mounting of electric cabinet has the support frame, and the one end of support frame is equipped with supporting roller, and supporting roller's top and the bottom laminating of carousel.

3. The intelligent automatic preheating test shielding machine according to any one of claims 1-2, characterized in that: the first test unit and the second test unit are both provided with jigs, and the surface of the turntable is provided with mounting grooves matched with the jigs for mounting.

4. The intelligent automatic preheating test shielding machine according to any one of claims 1-2, characterized in that: the shielding box is internally provided with a filter interface for frequency filtering, and the filter interface consists of a first interface module and a second interface module.

5. The intelligent automatic preheating test shielding machine according to any one of claims 1-2, characterized in that: the electric cabinet is internally provided with a plurality of electromagnetic valves used for being matched with different circuits for control, the bottom of the electric cabinet is provided with a bottom plate, and a cushion block used for supporting the rotary cylinder is arranged between the bottom plate and the rotary cylinder.

6. The intelligent automatic preheating test shielding machine according to any one of claims 1-2, characterized in that: the rear surface mounting of electric cabinet has the guard plate that is used for protecting the electric cabinet, and the upper surface of electric cabinet is equipped with the control cabinet, and the last surface mounting of control cabinet has control button, and the both ends of control cabinet are equipped with the protection grating respectively.