Pin testing device

Abstract

The utility model provides a pin testing device, which comprises a replaceable base arranged above a bottom plate, and is characterized in that a testing piece is fixedly connected above the replaceable base, one side of the bottom plate is connected with a translation guide rail I and a translation guide rail II in a sliding manner, one end of the translation guide rail I is connected with a testing seat I in a sliding manner, and the other end of the translation guide rail II is connected with a pin. One end of the second translation guide rail is fixedly connected with a second test seat, one end of the first test seat is fixedly connected with a plurality of probe joints, and one end of each probe joint is fixedly connected with a test probe. Two rows of probe connectors are installed on one side of the first test seat, different numbers of test probes can be installed according to the number of the detected PINs, every upper test probe and the lower test probe correspond to the PINs on one test piece, and when the two test probes make contact with one sides of the PINs, the circuit is smooth, and it is indicated that no pin missing phenomenon exists; and if the probe lacks, the circuits of the two test probes are not connected, and the device gives an alarm, so that the test speed is higher, and the problems that errors are easy to occur and the efficiency is low during human eye inspection are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED digital tube testing, in particular to a pin testing device. Background Art

[0002] LED digital tubes are a very common digital information display device today, and are widely used in various digital products, home appliances, industrial digital instruments and other fields. Through the clever layout and combination of multiple LED light-emitting diodes sealed in a fixed plastic component, a display panel with specific functions is formed. Some of these display panels can only display decimal numbers from 0 to 9, some can also display 26 uppercase and lowercase English letters from A to Z, and some can also display specific patterns. At present, some digital tubes are equipped with non-functional auxiliary PIN pins (pins). Customers only install and use them. Because there is no electrical signal input, the digital tube tester cannot detect whether the PIN pin is missing, which affects the customer's installation and causes complaints and batch returns. Some digital tubes also have short PIN phenomena. At present, the short PIN defect cannot be detected by the digital tube tester tooling and fixture. When welding at the client, it will cause poor welding and customer complaints and returns.

[0003] After searching, the Chinese patent announcement number CN210038104U discloses an LED lamp testing device, including a base, a switch, a power supply and a number of movable probes. A product carrier jig is set on the base, and the PCBA board with the LED lamp inserted is set directly above the product carrier jig. The movable probe passes through the product carrier jig to connect to the pins of the LED lamp.

[0004] Aiming at the problem that the above-mentioned technology lacks the function of quickly detecting the short pin and missing pin conditions of the PIN pins on both sides of the LED digital tube, a pin testing device is proposed. Utility Model Content

[0005] In view of this, the embodiments of the present invention hope to provide a pin testing device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0006] The technical solution of the embodiment of the utility model is implemented as follows: it includes a replaceable base installed above the base plate, and is characterized in that: a test piece is fixedly connected to the top of the replaceable base, a translation guide rail 1 and a translation guide rail 2 are slidably connected to one side of the base plate, a test seat 1 is slidably connected to one end of the translation guide rail 1, a test seat 2 is fixedly connected to one end of the translation guide rail 2, a plurality of probe connectors are fixedly connected to one end of the test seat 1, and a test probe is fixedly connected to one end of the probe connector.

[0007] In some embodiments, one side of the test seat 2 is slidably connected to a lifting seat, and a plurality of probe connectors are fixedly connected to one end of the lifting seat.

[0008] In some embodiments, a sliding rod is fixedly connected to one side of the test seat 2, and a screw rod is rotatably connected to the other side of the test seat 2, and one end of the screw rod is threadedly connected to the lifting seat.

[0009] In some embodiments, a lamp bead, an alarm and a switch are fixedly connected to one end of the base plate, one end of the test socket 1 and the test socket 2 are electrically connected to the lamp bead and the alarm, and one end of the switch is electrically connected to the electronic components in the device.

[0010] In some embodiments, a guide rod is fixedly connected inside the base plate, one end of the translation guide rail 1 and the translation guide rail 2 is slidably connected to the guide rod, and both ends of the spring 2 are respectively fixedly connected between the translation guide rail 1 and the translation guide rail 2.

[0011] In some embodiments, a lever is rotatably connected to the inner side of the base plate, one end of the translation guide rail 1 and the translation guide rail 2 are respectively rotatably connected to guide wheels, and one end of the lever is movably connected to the guide wheel.

[0012] In some embodiments, one end of the base plate is rotatably connected to a pressure rod, the pressure rod and one end of the base plate are fixedly connected to a spring 1, one end of the pressure rod is fixedly connected to a cam, and one end of the cam is slidably connected to one side of a translation guide rail 2.

[0013] In some embodiments, one end of the replaceable base is rotatably connected to a fixing bolt, one side of the replaceable base is slidably connected to a pressing plate, and a spring three is fixedly connected between the pressing plate and one end of the replaceable base.

[0014] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0015] 1. A pin testing device, with two rows of probe connectors installed on one side of a test socket, can install different numbers of test probes according to the number of PIN pins to be checked, and each upper and lower two test probes correspond to a PIN pin on a test piece. When the two test probes touch one side of the PIN pin, the circuit is unobstructed, indicating that there is no missing pin phenomenon. If there is a missing pin, the circuits of the two test probes will not be connected. At this time, the device will sound an alarm, and the test speed will be faster, avoiding the problem of easy errors and low efficiency in human eye inspection.

[0016] 2. A pin testing device, which moves a row of test probes on one side to the bottom of the corresponding test piece PIN pin through a lifting seat, and then moves the test seat two to let the test probe contact the PIN pin. If there is a short pin situation, the corresponding light bead on the test piece will not light up, and the device will sound an alarm to indicate the abnormality.

[0017] 3. A pin testing device, which drives the cam to rotate simultaneously when the pressure rod is rotated, and then squeezes the second translation guide rail to move inward, and the guide wheel at one end of the second translation guide rail squeezes the lever to rotate, thereby driving the other side of the translation guide rail to move inward synchronously, and the test seat 1 is installed on the translation guide rail 1, and the test seat 2 is installed on the translation guide rail 2. The test probes can be driven from both sides to contact the PIN needles under the test piece at the same time to quickly perform detection.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is the main structural diagram of the utility model;

[0021] Figure 2 This is the internal structure diagram of the bottom plate of the utility model;

[0022] Figure 3 This is a test piece installation structure diagram of the utility model;

[0023] Figure 4 This is a structural diagram of a test socket of the utility model;

[0024] Figure 5 This is a structural diagram of the test socket 2 of the utility model.

[0025] Reference numerals:

[0026] 1. Base plate; 2. Lamp beads; 3. Alarm; 4. Switch; 5. Interchangeable base; 6. Fixing bolts; 7. Press plate; 8. Test piece; 9. Pressure rod; 10. Spring 1; 11. Translation guide rail 1; 12. Translation guide rail 2; 13. Guide wheel; 14. Lever; 15. Guide rod; 16. Spring 2; 17. Cam; 18. Spring 3; 19. Test seat 1; 20. Test seat 2; 21. Test probe; 22. Screw; 23. Lifting seat; 24. Sliding rod; 25. Probe connector. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] like Figure 1-5 As shown, a pin testing device comprises a replaceable base 5 installed on a base plate 1, a test piece 8 is fixedly connected to the replaceable base 5, a translation guide rail 11 and a translation guide rail 2 12 are slidably connected to one side of the base plate 1, a test seat 19 is slidably connected to one end of the translation guide rail 11, a test seat 20 is fixedly connected to one end of the translation guide rail 2 12, a plurality of probe connectors 25 are fixedly connected to one end of the test seat 19, and a test probe 21 is fixedly connected to one end of the probe connector 25;

[0031] The PIN pins of the test piece 8 are installed downward on the replaceable base 5. The width of the middle part of the replaceable base 5 is the same as the bottom width of the PIN pins on both sides of the bottom of the test piece 8, and can be replaced according to different test pieces 8;

[0032] Two rows of probe connectors 25 are installed on one side of the test socket 19. Different numbers of test probes 21 can be installed according to the number of PIN pins to be checked. Each upper and lower two test probes 21 correspond to a PIN pin on a test piece 8. When the two test probes 21 touch one side of the PIN pin, the circuit is unobstructed, indicating that there is no missing pin phenomenon. If there is a missing pin, the circuit of the two test probes 21 will not be connected, and the device will sound an alarm.

[0033] The test seat 20 is slidably connected to a lifting seat 23 at one side, and a plurality of probe connectors 25 are fixedly connected to one end of the lifting seat 23;

[0034] When checking whether there is a short pin on the other side, the row of test probes 21 on one side can be moved to the bottom of the corresponding test piece 8 PIN pin through the lifting seat 23, and then the test seat 20 is moved to make the test probe 21 contact the PIN pin. If there is a short pin, the corresponding lamp bead 2 on the test piece 8 will not light up, and the device will sound an alarm to indicate the abnormality;

[0035] The second test seat 20 is fixedly connected to a slide bar 24 on one side, and rotatably connected to a screw rod 22 on the other side of the test seat 20, and one end of the screw rod 22 is threadedly connected to a lifting seat 23;

[0036] It is more convenient to adjust the lifting base 23 by rotating the screw rod 22 and it is easier to control the height of the lifting base 23 .

[0037] In this embodiment, the bottom plate 1 is fixedly connected to a lamp bead 2, an alarm 3 and a switch 4 at one end, the test socket 1 19 and the test socket 2 20 are electrically connected to the lamp bead 2 and the alarm 3, and the switch 4 is electrically connected to the electronic components in the device at one end;

[0038] The lamp bead 2 is connected to a test probe 21 on one side of the test socket 19. When the test probe 21 contacts the PIN needle to form a loop, the lamp bead 2 lights up, and the alarm 3 is used to sound an alarm.

[0039] In this embodiment, the bottom plate 1 is fixedly connected with a guide rod 15 inside, one end of the translation guide rail 11 and the translation guide rail 2 12 is slidably connected to the guide rod 15, and both ends of the spring 2 16 are respectively fixedly connected between the translation guide rail 11 and the translation guide rail 2 12. The bottom plate 1 is rotatably connected with a lever 14 inside, and one end of the translation guide rail 11 and the translation guide rail 2 12 are respectively rotatably connected with a guide wheel 13, one end of the lever 14 is movably connected to the guide wheel 13, one end of the bottom plate 1 is rotatably connected with a pressure rod 9, and the pressure rod 9 and one end of the bottom plate 1 are fixedly connected with a spring 10, one end of the pressure rod 9 is fixedly connected with a cam 17, and one end of the cam 17 is slidably connected to one side of the translation guide rail 2 12;

[0040] When the pressure rod 9 is rotated, the cam 17 will be driven to rotate at the same time, and the translation guide rail 12 will be squeezed to move inward. The guide wheel 13 at one end of the translation guide rail 12 squeezes the lever 14 to rotate, thereby driving the translation guide rail 11 on the other side to move inward synchronously. The test seat 19 is installed on the translation guide rail 11, and the test seat 20 is installed on the translation guide rail 12. The test probe 21 can be driven from both sides to contact the PIN needle under the test piece 8 at the same time to quickly perform detection.

[0041] In this embodiment: the PIN pins of the test piece 8 are installed downward on the replaceable base 5, and the width of the middle part of the replaceable base 5 is the same as the bottom width of the PIN pins on both sides of the bottom of the test piece 8, and can be replaced according to different test pieces 8;

[0042] Two rows of probe connectors 25 are installed on one side of the test socket 19. Different numbers of test probes 21 can be installed according to the number of PIN pins to be checked. Each upper and lower two test probes 21 correspond to a PIN pin on a test piece 8. When the two test probes 21 touch one side of the PIN pin, the circuit is unobstructed, indicating that there is no missing pin phenomenon. If there is a missing pin, the circuit of the two test probes 21 will not be connected, and the device will sound an alarm.

[0043] When checking whether there is a short pin on the other side, the row of test probes 21 on one side can be moved to the bottom of the corresponding test piece 8 PIN pin through the lifting seat 23, and then the test seat 20 is moved to make the test probe 21 contact the PIN pin. If there is a short pin, the corresponding lamp bead 2 on the test piece 8 will not light up, and the device will sound an alarm to indicate the abnormality;

[0044] The lamp bead 2 is connected to the test probe 21 on one side of the test socket 19. When the test probe 21 contacts the PIN needle to form a loop, the lamp bead 2 lights up, and the alarm 3 is used to sound an alarm;

[0045] When the pressure rod 9 is rotated, the cam 17 will be driven to rotate at the same time, and the translation guide rail 12 will be squeezed to move inward. The guide wheel 13 at one end of the translation guide rail 12 squeezes the lever 14 to rotate, thereby driving the translation guide rail 11 on the other side to move inward synchronously. The test seat 19 is installed on the translation guide rail 11, and the test seat 20 is installed on the translation guide rail 12. The test probe 21 can be driven from both sides to contact the PIN needle under the test piece 8 at the same time to quickly perform detection.

[0046] Embodiment 2:

[0047] A pin testing device, this embodiment makes the following improvements on the basis of embodiment 1, such as Figure 1-5 As shown,

[0048] In this embodiment, one end of the replaceable base 5 is rotatably connected to a fixing bolt 6, one side of the replaceable base 5 is slidably connected to a pressing plate 7, and a spring 3 18 is fixedly connected to the pressing plate 7 and one end of the replaceable base 5;

[0049] The pressing plate 7 can fix the test piece 8 on the lower side through the spring three 18, and the fixing bolt 6 is threadedly connected to the bottom plate 1 to fix the replaceable base 5.

[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A pin testing device, comprising a replaceable base (5) mounted above a base plate (1), characterized in that: A test piece (8) is fixedly connected to the upper side of the replaceable base (5); a translation guide rail 1 (11) and a translation guide rail 2 (12) are slidably connected to one side of the bottom plate (1); a test seat 1 (19) is slidably connected to one end of the translation guide rail 1 (11); a test seat 2 (20) is fixedly connected to one end of the translation guide rail 2 (12); a plurality of probe connectors (25) are fixedly connected to one end of the test seat 1 (19); and a test probe (21) is fixedly connected to one end of the probe connector (25).

2. A pin testing device according to claim 1, characterized in that: One side of the second test seat (20) is slidably connected to a lifting seat (23), and a plurality of probe connectors (25) are fixedly connected to one end of the lifting seat (23).

3. A pin testing device according to claim 2, characterized in that: One side of the second test seat (20) is fixedly connected to a slide bar (24), and the other side of the second test seat (20) is rotatably connected to a screw rod (22), and one end of the screw rod (22) is threadedly connected to a lifting seat (23).

4. A pin testing device according to claim 1, characterized in that: One end of the base plate (1) is fixedly connected to a lamp bead (2), an alarm (3) and a switch (4); one end of a test socket 1 (19) and a test socket 2 (20) are electrically connected to the lamp bead (2) and the alarm (3); and one end of the switch (4) is electrically connected to an electronic component in the device.

5. A pin testing device according to claim 4, characterized in that: A guide rod (15) is fixedly connected inside the base plate (1), one end of the first translation guide rail (11) and the second translation guide rail (12) are slidably connected to the guide rod (15), and two ends of the second spring (16) are respectively fixedly connected between the first translation guide rail (11) and the second translation guide rail (12).

6. A pin testing device according to claim 5, characterized in that: The inner side of the bottom plate (1) is rotatably connected to a lever (14); one end of the first translation guide rail (11) and the second translation guide rail (12) are rotatably connected to guide wheels (13); one end of the lever (14) is movably connected to the guide wheel (13).

7. A pin testing device according to claim 6, characterized in that: One end of the base plate (1) is rotatably connected to a pressure rod (9), one end of the pressure rod (9) and the base plate (1) are fixedly connected to a spring one (10), one end of the pressure rod (9) is fixedly connected to a cam (17), and one end of the cam (17) is slidably connected to one side of a second translation guide rail (12).

8. A pin testing device according to claim 4, characterized in that: The replaceable base (5) One end is rotatably connected with a fixing bolt (6), and one side of the replaceable base (5) is slidably connected with a pressing plate (7). The pressing plate (7) and one end of the replaceable base (5) are fixedly connected with a spring three (18).

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