Testing needle of flying probe testing machine

Abstract

The utility model discloses a test needle of a flying probe tester, which belongs to the technical field of flying probe testers and comprises a needle seat and a needle head, the needle head is in a sheet shape, one end of the needle head is provided with an arc surface, the other end of the needle head is inserted into the needle seat, and the insertion depth of the needle head is adjustable; a marking line is arranged on the surface of the needle head, the marking line is arc-shaped, the radian of the marking line is the same as that of the arc surface, and the marking line is arranged at one end, close to the arc surface, of the needle head. According to the utility model, the problem of test failure or test data deviation caused by abrasion or damage of the tip part of the test needle of the flying probe tester is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flying probe testers, and more specifically, to a test needle of a flying probe tester. Background Art

[0002] Flying probe testers are used to test circuit boards. They are divided into two categories: one is to test PCBs, and the other is to test PCBAs. Flying probe testing uses 4, 6 or 8 probes to perform high-voltage insulation and low-resistance continuity tests (testing the open and short circuits of the circuits) on circuit boards without the need for test fixtures. It is very suitable for testing small batch samples. Flying probe testing uses the movement of probes to measure the network of PCBs or PCBAs, which greatly increases flexibility. There is no need to change fixtures when testing different circuit boards. You can directly install the circuit boards and run the test program. Testing is extremely convenient.

[0003] After long-term use, the tip of the test needle of the flying probe tester is easily worn or damaged, thereby causing test failure or test data deviation. In view of this, the utility model provides a novel test needle of the flying probe tester. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a test needle for a flying probe tester, which solves the problem that wear or damage on the tip of the test needle of the flying probe tester may lead to test failure or deviation in test data.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A test needle of a flying probe tester comprises a needle seat and a needle head, wherein the needle head is in the shape of a thin sheet and has a curved surface at one end, and the other end is inserted into the needle seat and the insertion depth is adjustable;

[0007] The surface of the needle head is provided with a marking line, the marking line is arc-shaped and has the same curvature as the arc surface, and the marking line is arranged on one end of the needle head close to the arc surface.

[0008] It is further preferred that: it also includes tightening the screw;

[0009] The needle seat is provided with a slot adapted to the needle, the needle is inserted in the slot, a first mounting hole connected to the slot is opened on the surface of the needle seat, and a plurality of second mounting holes corresponding to the first mounting hole are opened on the needle, and the tightening screw is installed in the first mounting hole and the second mounting hole so that the needle is installed on the needle seat.

[0010] Further preferably, a plurality of the second mounting holes are arranged at equal intervals at one end of the needle head.

[0011] Further preferably, a plurality of first mounting holes are provided, the plurality of first mounting holes are arranged at equal intervals on one side of the needle seat, and the interval between adjacent first mounting holes is the same as the interval between adjacent second mounting holes.

[0012] Further preferably, a plurality of the score lines are provided, the plurality of score lines are arranged at equal intervals at one end of the needle head, and the interval between adjacent first mounting holes is the same as the interval between adjacent score lines.

[0013] More preferably, at least two tightening screws are provided.

[0014] More preferably, the cross section of the score line is "V" shaped.

[0015] Further preferably, a through hole is formed on the needle head, and the through hole is located between the second mounting hole and the score line.

[0016] In summary, the utility model has the following beneficial effects: after the tip of the needle is worn or damaged, a line can be drawn along the outermost side of the needle to break it off, thereby exposing a new curved surface, and then the tightening screw is unscrewed and the needle is pushed outward to make the extended length of the needle the same as the original length of the needle, and then it can be fixed by tightening the screw. The utility model is simple and convenient to use, has strong operability, and improves the service life of the needle. It solves the problem that wear or damage to the tip of the test needle of the flying probe tester may lead to test failure or deviation in test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the structure of an embodiment, mainly used to illustrate the structure of a test needle;

[0018] Figure 2 is a front view schematic diagram of an embodiment, mainly used to illustrate the structure of a test needle;

[0019] Figure 3 It is a schematic structural diagram of an embodiment, and is mainly used to illustrate the structure of a needle.

[0020] In the figure, 1, needle seat; 2, needle head; 3, marking; 4, curved surface; 5, perforation; 6, first mounting hole; 7, tightening screws; 8, second mounting hole. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Embodiment: A test needle of a flying probe tester, such as Figure 1-3As shown, it includes a needle seat 1, a needle 2 and a tightening screw 7. The needle 2 is installed on the flying probe tester through the needle seat 1. The needle 2 is in the shape of a thin sheet and has a curved surface 4 at one end. The other end is inserted into the needle seat 1 and the insertion depth is adjustable. The surface of the needle 2 is engraved with a score line 3, which is arc-shaped and has the same curvature as the curved surface 4. The score line 3 is set at the end of the needle 2 close to the curved surface 4.

[0023] In order to facilitate breaking off the worn or damaged needle 2 along the score line 3, preferably, the cross section of the score line 3 is "V"-shaped.

[0024] The needle seat 1 is provided with a slot adapted to the needle 2, and the needle 2 is inserted in the slot. The surface of the needle seat 1 is provided with a first mounting hole 6 connected to the slot, and the needle 2 is provided with a plurality of second mounting holes 8 corresponding to the first mounting hole 6. The tightening screw 7 is installed in the first mounting hole 6 and the second mounting hole 8, so that the needle 2 can be detachably mounted on the needle seat 1.

[0025] In order to achieve the depth adjustment of the needle 2 inserted in the needle seat 1, preferably, a plurality of second mounting holes 8 are evenly spaced at one end of the needle 2, a plurality of first mounting holes 6 are provided, and a plurality of first mounting holes 6 are evenly spaced at one side of the needle seat 1. The spacing between adjacent first mounting holes 6 is the same as the spacing between adjacent second mounting holes 8. In order to stably insert the needle 2 in the needle seat 1, preferably, in this embodiment, four first mounting holes 6 and four second mounting holes 8 are provided, and two tightening screws 7 are provided, and the two tightening screws 7 are tightened in two corresponding first mounting holes 6 and second mounting holes 8, respectively.

[0026] In order to facilitate breaking off the worn or damaged needle 2 along the score line 3 for many times and improve the service life of the needle 2, preferably, a plurality of score lines 3 are provided, and the plurality of score lines 3 are arranged at equal intervals at one end of the needle 2, and the spacing between adjacent first mounting holes 6 is the same as the spacing between adjacent score lines 3. Specifically, in this embodiment, two score lines 3 are provided. A through hole 5 is provided on the needle 2, and the through hole 5 is located between the second mounting hole 8 and the score line 3, and the through hole 5 can be used for the wire to pass through.

[0027] When the tip of the needle 2 is worn or broken, it can be broken by scoring 3 along the outermost side of the needle 2 to expose a new curved surface 4, and then the tightening screw 7 is unscrewed to push the needle 2 outward so that the extended length of the needle 2 is the same as the original extended length of the needle 2, and then it can be fixed by tightening the screw 7. It is simple and convenient to use, has strong operability, and increases the service life of the needle 2.

[0028] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A test needle of a flying probe tester, comprising a needle holder (1) and a needle head (2), characterized in that: The needle head (2) is in the shape of a thin sheet and is provided with a curved surface (4) at one end, and the other end is inserted into the needle seat (1) and the insertion depth is adjustable; The surface of the needle head (2) is provided with a marking line (3), the marking line (3) is arc-shaped and has the same curvature as the arc surface (4), and the marking line (3) is arranged at one end of the needle head (2) close to the arc surface (4).

2. The test needle of a flying probe tester according to claim 1, characterized in that: Also includes a tightening screw (7); The needle seat (1) is provided with a slot adapted to the needle head (2), the needle head (2) is inserted into the slot, a first mounting hole (6) connected to the slot is provided on the surface of the needle seat (1), a plurality of second mounting holes (8) corresponding to the first mounting hole (6) are provided on the needle head (2), and the tightening screw (7) is installed in the first mounting hole (6) and the second mounting hole (8) so that the needle head (2) is installed on the needle seat (1).

3. The test needle of a flying probe tester according to claim 2, characterized in that: A plurality of the second mounting holes (8) are arranged at equal intervals at one end of the needle head (2).

4. The test needle of a flying probe tester according to claim 2, characterized in that: A plurality of the first mounting holes (6) are provided, and the plurality of the first mounting holes (6) are arranged at equal intervals on one side of the needle seat (1), and the spacing between adjacent first mounting holes (6) is the same as the spacing between adjacent second mounting holes (8).

5. The test needle of a flying probe tester according to claim 4, characterized in that: A plurality of the score lines (3) are provided, and the plurality of score lines (3) are arranged at equal intervals at one end of the needle head (2), and the interval between adjacent first mounting holes (6) is the same as the interval between adjacent score lines (3).

6. The test needle of a flying probe tester according to claim 4, characterized in that: At least two tightening screws (7) are provided.

7. The test needle of a flying probe tester according to claim 1, characterized in that: The cross section of the score line (3) is "V" shaped.

8. The test needle of a flying probe tester according to claim 2, characterized in that: The needle head (2) is provided with a through hole (5), and the through hole (5) is located between the second mounting hole (8) and the score line (3).

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