CN218099255U

CN218099255U - Universal test fixture for circuit board for mobile communication transmission system

Info

Publication number: CN218099255U
Application number: CN202221601405.7U
Authority: CN
Inventors: 苏佰亿; 亓玉霞
Original assignee: Shandong Huagen Information Technology Co ltd
Current assignee: Shandong Huagen Information Technology Co ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-12-20
Anticipated expiration: 2032-06-24

Abstract

The utility model provides a general test fixture of circuit board for mobile communication transmission system, including the mounting groove, the inboard upper portion of mounting groove slides and is equipped with the push pedal, it is equipped with the telescopic link to be connected between push pedal downside and the mounting groove downside inner wall, telescopic link outside cover has spring one, the connection of mounting groove downside inner wall front and back is equipped with the backup pad, it is equipped with pivot one to rotate to connect between the backup pad left and right sides two, the connection of pivot one front and back is equipped with the arc mounting panel, arc mounting panel opposite side is connected and is equipped with V type bracing piece, the other both ends of V type bracing piece are connected and are equipped with the gyro wheel, a pivot one front end is connected and is equipped with gear one, a set of backup pad front side of front side just is located to rotate between two sets of pivot one and is connected and is equipped with pivot two, the connection of the outside of pivot is equipped with gear two, the connection of pivot two front ends is equipped with the depression bar. Compared with the prior art, the utility model the advantage lies in: the circuit board can correspond to circuit boards or electronic components with various thicknesses; the first read-write needle mounting plate and the second read-write needle mounting plate are convenient to mount and replace, and the testing efficiency is higher.

Description

Universal test fixture for circuit board of mobile communication transmission system

Technical Field

The utility model relates to a circuit test fixture technical field, in particular to mobile communication is general test fixture of circuit board for transmission system.

Background

Mobile communication is communication between mobile bodies or between a mobile body and a fixed body, and both parties of communication need to have one or both parties in motion, including land, sea, and air mobile communication. The moving body can be a person, and can also be an object in a moving state such as an automobile, a train, a ship, a radio and the like. Mobile communication employs frequency bands extending over low, medium, high, very high and very high frequencies. The carrier responsible for the data transfer requires a circuit board, which is the provider of the electrical connections of the electronic components. A universal test device is a test device for measuring the range of a set of parameters common to a plurality of different systems or devices. When a circuit board is subjected to general test, the circuit board needs to be clamped and fixed by a clamp in order to ensure the temperature of the circuit board. The corresponding positions of the test reading and writing pins corresponding to the circuit boards of different models are different, the existing test fixture is inconvenient to replace the test reading and writing pins, in addition, the existing test reading and writing pins are fixedly installed and only can correspond to the circuit boards or electronic components with the same thickness, the adjustment is inconvenient, the test efficiency is poor during the use, and the use requirements cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a universal test fixture for circuit boards used in mobile communication transmission systems, which comprises a mounting groove, wherein a push plate is arranged on the upper part of the inner side of the mounting groove in a sliding manner, four corners of the lower side of the push plate are respectively connected with the inner wall of the lower side of the mounting groove by telescopic rods, the outer side of each telescopic rod is sleeved with a first spring, the front and back parts of the inner wall of the lower side of the mounting groove are respectively connected with a first support plate, two sets of support plates are respectively connected with a first rotating shaft between the left and right parts, the front and back parts of one side of the first rotating shaft are respectively connected with an arc-shaped mounting plate, the other side of the arc-shaped mounting plate is connected with a V-shaped support rod, the other two ends of the V-shaped support rod are connected with rollers, the front end of the first rotating shaft penetrates through the support plates and is connected with a first gear, one set of the front side of the support plates at the front sides is positioned between the two sets of the first rotating shafts, two axle center directions of pivot are parallel with an axle center direction of pivot, the connection of pivot both sides is equipped with two sets of gear one matched with gear two, two front ends of pivot are rotated and are worn out the mounting groove and connect and be equipped with the depression bar, push pedal side connection is equipped with four group's location inserted bars, the location inserted bar outside slides and cup joints and be equipped with the slider, just the cover is connected in the location inserted bar outside between slider downside and the push pedal and is equipped with spring two, four groups slide and cup joint between the location inserted bar outside and be equipped with reading and writing needle mounting panel one, mounting groove upside four corners department connects respectively and is equipped with electric telescopic handle, four groups connect between the electric telescopic handle upper end and be equipped with the connecting plate, the connecting plate downside is connected and is equipped with the installing frame, it is equipped with reading and writing needle mounting panel two to connect between the four corners department of installing frame downside.

As an improvement: the upper end of the spring is connected with the lower side of the push plate, and the lower end of the spring is connected with the inner wall of the lower side of the mounting groove.

As an improvement: the read-write needle mounting plate two-way is connected with four corners of the lower side of the mounting frame through bolts.

As an improvement: two four corners of the reading and writing pin mounting plate are respectively positioned at the inner sides of the four groups of positioning insertion rods.

As an improvement: the maximum rotation angle of the pressure lever is 90 degrees.

As an improvement: the axis direction of the roller is parallel to the axis direction of the rotating shaft.

Compared with the prior art, the utility model the advantage lies in: the height of the second read-write needle mounting plate is adjusted by retracting the electric telescopic rod downwards, the V-shaped supporting rod is rotated upwards by rotating the pressure rod to the left side by 90 degrees, the rollers at two ends of the upper side of the V-shaped supporting rod slide on the lower side of the push plate, two groups of rollers are simultaneously supported on the lower side of the push plate, the first read-write needle mounting plate moves upwards, the first read-write needle mounting plate is elastically supported by a spring, and communication pins on the two pairs of circuit boards of the first read-write needle mounting plate and the second read-write needle mounting plate are connected by the first read-write needle mounting plate and can correspond to circuit boards or electronic components with various thicknesses; the first read-write needle mounting plate and the second read-write needle mounting plate are convenient to mount and replace, and the testing efficiency is higher.

Drawings

Fig. 1 is a schematic structural view of a universal test fixture for a circuit board for a mobile communication transmission system according to the present invention;

fig. 2 is a front view of the universal test fixture for circuit boards of a mobile communication transmission system according to the present invention;

FIG. 3 is a schematic view of a V-shaped support bar connection structure of the universal test fixture for circuit boards of a mobile communication transmission system according to the present invention;

reference numerals comparison table:

1. mounting grooves; 2. pushing the plate; 3. a telescopic rod; 4. a first spring; 5. a support plate; 6. a first rotating shaft; 7. an arc-shaped mounting plate; 8. a V-shaped support rod; 9. a roller; 10. a first gear; 11. a second rotating shaft; 12. a second gear; 13. a pressure lever; 14. positioning the inserted rod; 15. a slider; 16. a second spring; 17. a first read-write pin mounting plate; 18. an electric telescopic rod; 19. a connecting plate; 20. installing a frame; 21. and a second read-write pin mounting plate.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

As shown in fig. 1-3, a general test fixture for circuit boards used in mobile communication transmission systems comprises a mounting groove 1, a push plate 2 is slidably arranged on the upper portion of the inner side of the mounting groove 1, four corners of the lower side of the push plate 2 are respectively connected with inner walls of the lower side of the mounting groove 1 to form telescopic rods 3, a first spring 4 is sleeved on the outer side of the telescopic rod 3, support plates 5 are respectively connected to the front and rear portions of the inner walls of the lower side of the mounting groove 1, two sets of support plates 5 are respectively rotatably connected between the left and right portions of the support plates 5 to form a first rotating shaft 6, a first rotating shaft 6 is respectively connected with an arc-shaped mounting plate 7 at the front and rear portions of the front side of the first rotating shaft 6 to form a second rotating shaft 11, the axis direction of the second rotating shaft 11 is parallel to the axis direction of the first rotating shaft 6, a second gear 12 matched with the first gear 10 is connected to the first rotating shaft 6, four sets of push plates 11 penetrate through the mounting groove 1 and are connected with an upper positioning rod 13, a positioning rod 14 is connected to a positioning slide block 14, a positioning pin 14 is connected to a positioning block 14, a positioning pin 14 is connected to the upper positioning block 14, a slide block 14 is connected to the lower positioning pin 14, and a second read-write needle mounting plate 21 is connected between the four corners of the lower side of the mounting frame 20.

The upper end of the first spring 4 is connected with the lower side of the push plate 2, and the lower end of the first spring 4 is connected with the inner wall of the lower side of the mounting groove 1.

The second read-write pin mounting plate 21 is connected with four corners of the lower side of the mounting frame 20 through bolts.

The four corners of the second read-write pin mounting plate 21 are respectively positioned at the inner sides of the four groups of positioning insertion rods 14.

The angle of rotation of the pressure lever 13 is at most 90 °.

The axle center direction of the roller 9 is parallel to the axle center direction of the first rotating shaft 6.

When the utility model is implemented, the test fixture is externally connected with electricity, the first mounting plate 17 of the reading and writing needle is sleeved outside the first four positioning insertion rods 14 in a sliding way, the first mounting plate 17 of the reading and writing needle is supported by the slide block 15, the second mounting plate 21 of the reading and writing needle is mounted at the lower side of the mounting frame 20 by the bolt, the circuit board is placed at the upper side of the first mounting plate 17 of the reading and writing needle, the four groups of electric telescopic rods 18 are started, the second mounting plate 21 of the reading and writing needle is driven to move downwards to the corresponding height by the whole retraction of the electric telescopic rods 18, one hand holds one end of the pressure rod 13, the pressure rod 13 rotates 90 degrees towards the left side, the second gear 12 is driven to rotate by the second gear 12 and the first two groups of gears 10, the first two groups of rotating shafts 6 are driven to rotate, thereby the V-shaped support rod 8 on the first rotating shaft 6 is driven to rotate, and the rollers 9 at the two ends of the upper side of the V-shaped support rod 8 slide at the lower side of the push plate 2, two groups of rollers 9 are simultaneously supported at the lower side of the push plate 2, a first reading and writing needle mounting plate 17 is moved upwards, the first reading and writing needle mounting plate 17 is elastically supported through a second spring 16 to prevent the first reading and writing needle mounting plate 17 from damaging a circuit board, a communication pin on the circuit board is clamped and connected through the first reading and writing needle mounting plate 17 and a second reading and writing needle mounting plate 21 to carry out software brushing and communication test, after the test is finished, the pressing rod 13 is rotated upwards by 90 degrees to enable the V-shaped supporting rod 8 to move towards one side, the push plate 2 is pulled back downwards through resilience of a first spring 4 to enable the first reading and writing needle mounting plate 17 and the second reading and writing needle mounting plate 21 to be loosened with the circuit board respectively, four groups of electric telescopic rods 18 are started, the electric telescopic rods 18 extend upwards to keep the second reading and writing needle mounting plate 21 away from the circuit board, and the circuit board is convenient to take out.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a general test fixture of circuit board for mobile communication transmission system, includes mounting groove (1), its characterized in that: the upper portion of the inner side of the mounting groove (1) is provided with a push plate (2) in a sliding manner, four corners of the lower side of the push plate (2) are respectively connected with the inner wall of the lower side of the mounting groove (1) to form telescopic rods (3), the outer side of each telescopic rod (3) is provided with a spring I (4), the front portion and the rear portion of the inner wall of the lower side of the mounting groove (1) are respectively provided with a support plate (5), two groups of support plates (5) are respectively connected with a rotating shaft I (6) in a rotating manner, the front portion and the rear portion of one side of the rotating shaft I (6) are respectively provided with an arc-shaped mounting plate (7), the other side of the arc-shaped mounting plate (7) is provided with a V-shaped support rod (8), and the other two ends of the V-shaped support rod (8) are respectively provided with idler wheels (9), the front end of the first rotating shaft (6) rotates to penetrate through the supporting plate (5) and is connected with the first gear (10), the front side of the first rotating shaft (5) is positioned between the first rotating shaft (6) and is connected with the second rotating shaft (11), the axis direction of the second rotating shaft (11) is parallel to the axis direction of the first rotating shaft (6), the outer side of the second rotating shaft (11) is connected with the second gear (12) matched with the first gear (10), the front end of the second rotating shaft (11) rotates to penetrate out of the mounting groove (1) and is connected with a pressure rod (13), the upper side of the push plate (2) is connected with four groups of positioning insertion rods (14), location inserted bar (14) outside slip cup joint is equipped with slider (15), between slider (15) downside and push pedal (2) and the cover be connected in location inserted bar (14) outside and be equipped with spring two (16), four groups slip cup joint is equipped with reading and writing needle mounting panel (17) between location inserted bar (14) outside, mounting groove (1) upside four corners department is connected respectively and is equipped with electric telescopic handle (18), four groups connect between electric telescopic handle (18) upper end and be equipped with connecting plate (19), connecting plate (19) downside is connected and is equipped with installing frame (20), it is equipped with reading and writing needle mounting panel two (21) to connect between installing frame (20) downside four corners department.

2. The universal test fixture for circuit boards of mobile communication transmission systems of claim 1, wherein: the upper end of the first spring (4) is connected with the lower side of the push plate (2), and the lower end of the first spring (4) is connected with the inner wall of the lower side of the mounting groove (1).

3. The universal test fixture for circuit boards of mobile communication transmission systems according to claim 1, wherein: the second read-write pin mounting plate (21) is connected with the four corners of the lower side of the mounting frame (20) through bolts.

4. The universal test fixture for circuit boards of mobile communication transmission systems according to claim 1, wherein: the four corners of the second read-write pin mounting plate (21) are respectively positioned at the inner sides of the four groups of positioning insertion rods (14).

5. The universal test fixture for circuit boards of mobile communication transmission systems according to claim 1, wherein: the angle of rotation of the pressure lever (13) is at most 90 °.

6. The universal test fixture for circuit boards of mobile communication transmission systems according to claim 1, wherein: the axle center direction of the roller (9) is parallel to the axle center direction of the first rotating shaft (6).