Testing device for electric signals of computer

Abstract

The utility model relates to the technical field of computer mainboard testing equipment, and discloses a testing device for computer electrical signals, which comprises a mainframe box, a support fixedly mounted on the mainframe box, a detection mechanism movably mounted on the front side of the support, and a bearing table fixedly mounted on the mainframe box and positioned right below the detection mechanism. Multiple sliding grooves are formed in the bearing table, a carrying plate is fixedly installed in the middle of the lower end of the bearing table, and a stepping motor is fixedly installed at the lower end of the carrying plate. A stepping motor is arranged at the lower end of the bearing table, a gear is installed at the output end of the stepping motor, meanwhile, a positioning mechanism is arranged on the bearing table, the positioning mechanism is composed of a push plate, a clamping plate, a fixing stud, a sliding block, a connecting base, a toothed bar and other structures and can be matched with the gear to rapidly position and clamp a computer mainboard, an ejector rod is arranged in the push plate, and therefore the positioning mechanism can be used for positioning and clamping the computer mainboard. And an L-shaped pressing block is movably mounted in the clamping plate, so that the L-shaped pressing block can be automatically pressed on the computer mainboard when the clamping plate moves towards one side of the push plate to clamp the mainboard.

Description

Technical Field

[0001] The utility model relates to the technical field of computer mainboard testing equipment, in particular to a testing device for computer electrical signals. Background Art

[0002] Computer motherboard testing is the process of verifying the various hardware and software functions of a computer motherboard to ensure that it meets design requirements and user expectations;

[0003] Before testing the computer motherboard, it is necessary to conduct an appearance inspection to find out whether there are potential faults such as burn marks, swollen capacitors or broken solder joints. In the subsequent testing process, the test equipment will also be used to check whether the power indicator light of the motherboard, as well as other hardware such as memory and graphics card are well connected and whether there are any faults. Therefore, when testing the computer motherboard, it is necessary to fix the computer motherboard through a clamping and positioning mechanism to facilitate the precise operation of the test equipment. For example, the Chinese utility model patent disclosed by announcement number CN213750065U: A computer motherboard voltage detection device, the application By fixing the computer mainboard on the test bench and then completing the voltage test of the computer mainboard through the voltage detector and the voltage test probe above, manual test is replaced, which helps to improve the test efficiency. However, when fixing the computer mainboard, the application uses fasteners to fix the computer mainboard on the side of the test station, and the bottom surface of the test station is provided with a plurality of positioning protrusions to facilitate the positioning of the computer mainboard. Therefore, the fixing operation of the computer mainboard becomes complicated. Similarly, when releasing the fixation of the computer mainboard, the above operation also needs to be repeated, thereby reducing the test efficiency of the computer mainboard. Utility Model Content

[0004] The purpose of the utility model is to provide a testing device for computer electrical signals, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A testing device for computer electrical signals, comprising a mainframe case, a bracket fixedly mounted on the mainframe case, a detection mechanism movably mounted on the front side of the bracket, a support platform fixedly mounted on the mainframe case, the support platform being located directly below the detection mechanism, a plurality of slide slots being provided in the support platform, a carrier plate fixedly mounted on the middle portion of the lower end of the support platform, a stepper motor fixedly mounted on the lower end of the carrier plate, and the stepper motor being electrically connected to a main control board in the mainframe case via a connecting line, a gear fixedly mounted on the output end of the stepper motor, a positioning mechanism being arranged on the support platform, and the positioning mechanism comprising two push plates , a clamping plate is respectively provided on one side of the two push plates, and a plurality of L-shaped pressure blocks are movably installed in the clamping plate, and the clamping plate is fixedly installed with a plurality of fixing studs relative to one side of the push plate, and one side of the fixing studs is also inserted into the corresponding through holes in the push plate and limited by nuts, that is, the clamping plate is movably installed on one side of the push plate through a plurality of fixing studs, and a plurality of sliders are fixedly installed at the lower end of the push plate, and the lower end of the slider passes through the corresponding slide groove and extends to the bottom of the supporting platform, wherein a connecting seat is fixedly connected between the two sliders, and a gear rod is fixedly installed on one side of the connecting seat, and the end of the gear rod away from the connecting seat is meshed with a gear.

[0007] As a further preferred embodiment of the present invention, a plurality of the fixing studs are sequentially and staggeredly arranged on one side of the clamping plate, and two adjacent fixing studs are arranged at different heights, and a first compression spring is sleeved on the outer side of the fixing stud, one side of the first compression spring abuts against one side of the push plate, and the other side of the first compression spring abuts against one side of the clamping plate;

[0008] Based on this, the clamping plate is movably installed on one side of the push plate through multiple fixing studs and with the help of the compressibility of the first compression spring, when the two clamping plates clamp the computer motherboard, excessive force can be prevented from being applied to the motherboard to damage the motherboard.

[0009] As a further preferred solution of the utility model, the push plate is internally threadedly connected with a plurality of push rods, and a hemispherical rubber block is fixedly mounted on one end of the push rod.

[0010] As a further preferred embodiment of the present invention, a plurality of mounting slots are provided in the clamping plate, a connecting screw is threadedly connected in the mounting slot, a second compression spring is sleeved on the outer side of the connecting screw, a through hole is provided in the transverse portion of the L-shaped pressing block, the transverse portion of the L-shaped pressing block is inserted and installed in the mounting slot, and the through hole in the L-shaped pressing block is inserted on the connecting screw, the upper end of the second compression spring abuts against the lower end of the transverse portion of the L-shaped pressing block, and the lower end of the second compression spring abuts against the bottom of the mounting slot;

[0011] Based on this, with the help of an adjustable top rod and an L-shaped pressing block, after the clamping plate is clamped and fixed to the computer motherboard, the L-shaped pressing block can automatically press down to the upper edge of the motherboard.

[0012] As a further preferred embodiment of the present invention, the two gear rods are respectively located above and below the gear, and T-shaped slide grooves are respectively provided on opposite sides of the two gear rods. Connecting rods are also fixedly installed on one end of the two gear rods away from the connecting seat, and a T-shaped slider is fixedly installed on one end of the connecting rod, and the T-shaped slider is slidably connected to the T-shaped slide groove of the other gear rod;

[0013] Based on this, by using a stepper motor to drive the gear to rotate, and making the gear synchronously drive the two gear rods to move relative to each other, the two push plates can be quickly and synchronously moved horizontally, thereby cooperating with the clamping plate to quickly clamp the computer motherboard.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the utility model, a stepper motor is arranged at the lower end of the support platform, and a gear is installed at the output end of the stepper motor. At the same time, a positioning mechanism is arranged on the support platform, and the positioning mechanism is composed of a push plate, a clamping plate, a fixed stud, a slider, a connecting seat, a gear rod and other structures. It can cooperate with the gear to quickly position and clamp the computer motherboard, and a push rod is arranged in the push plate. An L-shaped pressure block is movably installed in the clamping plate. When the clamping plate moves to one side of the push plate to clamp the motherboard, the L-shaped pressure block can be automatically pressed down on the computer motherboard, thereby improving the stability of the clamping and fixing of the computer motherboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the positioning mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the positioning mechanism of the utility model;

[0019] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0020] Figure 5 This is a bottom view of the support platform of the utility model;

[0021] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0022] Figure 7 It is a schematic diagram of the local structural connection of the gear rod of the utility model.

[0023] In the figure: 1. main case; 2. bracket; 3. detection mechanism; 4. support platform; 5. positioning mechanism; 6. push plate; 7. clamping plate; 8. L-shaped pressure block; 9. fixing stud; 10. slider; 11. connecting seat; 12. gear rod; 13. slide groove; 14. carrier plate; 15. stepping motor; 16. gear; 17. push rod; 18. first compression spring; 19. installation groove; 20. connecting screw; 21. second compression spring; 22. T-shaped slide groove; 23. connecting rod; 24. T-shaped slider. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-Figure 7 As shown, the utility model provides a test device for computer electrical signals, including a mainframe case 1, a bracket 2 is fixedly installed on the mainframe case 1, a detection mechanism 3 is movably installed on the front side of the bracket 2, a support platform 4 is also fixedly installed on the mainframe case 1, the support platform 4 is located directly below the detection mechanism 3, a plurality of slide grooves 13 are provided in the support platform 4, a carrier plate 14 is fixedly installed at the middle of the lower end of the support platform 4, a stepper motor 15 is fixedly installed at the lower end of the carrier plate 14, and the stepper motor 15 is electrically connected to the main control board in the mainframe case 1 through a connecting line, a gear 16 is also fixedly installed at the output end of the stepper motor 15, a positioning mechanism 5 is provided on the support platform 4, and the positioning mechanism 5 includes two push Plate 6, one side of the two push plates 6 is respectively provided with a clamping plate 7, a plurality of L-shaped pressure blocks 8 are movably installed in the clamping plate 7, a plurality of fixing studs 9 are fixedly installed on the clamping plate 7 relative to one side of the push plate 6, one side of the fixing studs 9 is also inserted into the corresponding through holes in the push plate 6 and limited by nuts, that is, the clamping plate 7 is movably installed on one side of the push plate 6 through the plurality of fixing studs 9, a plurality of sliders 10 are fixedly installed on the lower end of the push plate 6, the lower end of the slider 10 passes through the corresponding slide groove 13 and extends to the bottom of the supporting platform 4, wherein a connecting seat 11 is fixedly connected between the two sliders 10, a gear rod 12 is fixedly installed on one side of the connecting seat 11, and the end of the gear rod 12 away from the connecting seat 11 is meshed with the gear 16.

[0026] like Figure 3-Figure 7As shown, a plurality of fixing studs 9 are alternately arranged on one side of the clamping plate 7 in sequence, and two adjacent fixing studs 9 are set at different heights. A first compression spring 18 is sleeved on the outer side of the fixing stud 9, and one side of the first compression spring 18 abuts against one side of the push plate 6, and the other side of the first compression spring 18 abuts against one side of the clamping plate 7. The clamping plate 7 is movably installed on one side of the push plate 6 through a plurality of fixing studs 9 and with the help of the compressibility of the first compression spring 18, when the two clamping plates 7 clamp the computer motherboard, it can prevent excessive force from being applied to the motherboard to damage the motherboard. The push plate 6 is internally threadedly connected with a plurality of ejector rods 17, and a hemispherical rubber block is fixedly installed at one end of the ejector rod 17. A plurality of mounting grooves 19 are provided in the clamping plate 7, and a connecting screw 20 is internally threadedly connected with the mounting groove 19. A second compression spring 21 is sleeved on the outer side of the connecting screw 20. A through hole is provided in the transverse portion of the L-shaped pressing block 8, and the transverse portion of the L-shaped pressing block 8 is inserted and installed in the mounting groove 19, and the through hole in the L-shaped pressing block 8 is inserted On the connecting screw 20, the upper end of the second compression spring 21 abuts against the lower end of the transverse part of the L-shaped pressure block 8, and the lower end of the second compression spring 21 abuts against the bottom of the installation groove 19. With the help of the adjustable top rod 17 and the L-shaped pressure block 8, after the clamping plate 7 is clamped and fixed to the computer motherboard, the L-shaped pressure block 8 can be automatically pressed down to the upper edge of the motherboard. The two gear rods 12 are respectively located above and below the gear 16, and the two gear rods 12 are respectively provided with T-shaped grooves 22 on the opposite sides. The two gear rods 12 are also fixedly installed with connecting rods 23 at one end away from the connecting seat 11, and a T-shaped slider 24 is fixedly installed at one end of the connecting rod 23. The T-shaped slider 24 is slidably connected in the T-shaped groove 22 of the other gear rod 12. The gear 16 is driven to rotate by the stepping motor 15, and the gear 16 synchronously drives the two gear rods 12 to move relative to each other, so that the two push plates 6 can be quickly and synchronously moved horizontally, thereby cooperating with the clamping plate 7 to quickly clamp the computer motherboard.

[0027] It should be noted that the utility model is a testing device for computer electrical signals. When testing the computer motherboard, the computer motherboard can be placed on the supporting platform 4, and the stepper motor 15 can be started by the operation button on the front side of the main chassis 1. Then, the output end of the stepper motor 15 rotates a set angle, so that the stepper motor 15 can drive the gear 16 to rotate a certain angle. Then, because the gear 16 is respectively meshed with the two gear rods 12, the two gear rods 12 can be relatively moved above and below the gear 16, and the T-shaped sliders 24 on the connecting rods 23 at one end of the two gears 16 slide in the T-shaped grooves 22 of the other gear rod 12, thereby ensuring the stable translation of the two gear rods 12. Then, the two gear rods 12 respectively drive the connecting seat 11 on one side to move, so that the connecting seat 11 can drive the corresponding push plate 6 to translate on the supporting platform 4 through the two sliders 10, and then the two push plates 6 can respectively drive the clamping plate 7 on one side to move toward the direction of the computer motherboard through a plurality of fixing studs 9. When the clamping plate 7 moves toward the side of the pushing plate 6, the clamping plate 7 drives the L-shaped pressing block 8 to move synchronously through the installing slot 19, and makes one side of the L-shaped pressing block 8 contact with one side of the ejector rod 17 and be restricted to move downward, so that the L-shaped pressing block 8 moves downward in the installing slot 19 and compresses the second compression spring 21 toward the bottom of the installing slot 19. Synchronously, the lower end surface of the vertical part of the L-shaped pressing block 8 is pressed tightly on the computer motherboard, thereby improving the clamping stability of the computer motherboard. According to the different sizes of the motherboard, the displacement process of the clamping plate 7 is different. The ejector rod 17 can be rotated and adjusted in the pushing plate 6, so that the L-shaped pressing block 8 can press down and fix computer motherboards of different sizes. Subsequently, the computer motherboard can be tested by the detection mechanism 3.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A test device for computer electrical signals, characterized in that: The invention comprises a main case (1), a bracket (2) is fixedly mounted on the main case (1), a detection mechanism (3) is movably mounted on the front side of the bracket (2), a support platform (4) is also fixedly mounted on the main case (1), the support platform (4) is located directly below the detection mechanism (3), a plurality of slide grooves (13) are provided in the support platform (4), a carrier plate (14) is fixedly mounted in the middle of the lower end of the support platform (4), a stepping motor (15) is fixedly mounted at the lower end of the carrier plate (14), and the stepping motor (15) is electrically connected to a main control board in the main case (1) via a connecting line, a gear (16) is also fixedly mounted on the output end of the stepping motor (15), a positioning mechanism (5) is arranged on the support platform (4), and the positioning mechanism (5) comprises two push plates (6), and the two push plates (6) are connected to each other. A clamping plate (7) is provided on each side, and a plurality of L-shaped pressure blocks (8) are movably installed in the clamping plate (7). A plurality of fixing studs (9) are fixedly installed on the clamping plate (7) relative to one side of the push plate (6). One side of the fixing studs (9) is also inserted into the corresponding through holes in the push plate (6) and is limited by nuts, that is, the clamping plate (7) is movably installed on one side of the push plate (6) through the plurality of fixing studs (9). A plurality of sliders (10) are fixedly installed at the lower end of the push plate (6). The lower ends of the sliders (10) extend through corresponding slide grooves (13) to the bottom of the support platform (4), wherein a connecting seat (11) is fixedly connected between two of the sliders (10), and a gear rod (12) is fixedly installed on one side of the connecting seat (11), and the end of the gear rod (12) away from the connecting seat (11) is meshingly connected with a gear (16).

2. A test device for computer electrical signals according to claim 1, characterized in that: The plurality of fixing studs (9) are arranged alternately on one side of the clamping plate (7), and two adjacent fixing studs (9) are arranged at different heights. A first compression spring (18) is sleeved on the outer side of the fixing stud (9), one side of the first compression spring (18) abuts against one side of the push plate (6), and the other side of the first compression spring (18) abuts against one side of the clamping plate (7).

3. A test device for computer electrical signals according to claim 1, characterized in that: The push plate (6) is internally threadedly connected to a plurality of push rods (17), and a hemispherical rubber block is fixedly mounted on one end of the push rod (17).

4. A test device for computer electrical signals according to claim 3, characterized in that: The clamping plate (7) is provided with a plurality of mounting grooves (19), the mounting grooves (19) are internally threadedly connected with connecting screws (20), the connecting screws (20) are externally sleeved with a second compression spring (21), the transverse portion of the L-shaped pressing block (8) is provided with a through hole, the transverse portion of the L-shaped pressing block (8) is inserted and installed in the mounting grooves (19), and the through hole in the L-shaped pressing block (8) is inserted on the connecting screws (20), the upper end of the second compression spring (21) abuts against the lower end of the transverse portion of the L-shaped pressing block (8), and the lower end of the second compression spring (21) abuts against the bottom of the mounting groove (19).

5. A test device for computer electrical signals according to claim 1, characterized in that: The two gear rods (12) are respectively located above and below the gear (16); T-shaped slide grooves (22) are respectively provided on opposite sides of the two gear rods (12); connecting rods (23) are respectively fixedly installed on one end of the two gear rods (12) away from the connecting seat (11); a T-shaped slider (24) is fixedly installed on one end of the connecting rod (23); and the T-shaped slider (24) is slidably connected in the T-shaped slide groove (22) of the other gear rod (12).

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