Spring needle test fixture

Abstract

The embodiment of the utility model discloses a spring needle test fixture, which comprises a base and a top plate which are oppositely arranged in a first direction, a plurality of first needle holes are formed in the base, a plurality of second needle holes are formed in the top plate, and the first needle holes and the second needle holes are arranged in one-to-one correspondence in the first direction; the first needle hole is used for containing the bottom end of a spring needle, the second needle hole is a through hole, and the top end of the spring needle penetrates through the second needle hole and extends out of the second needle hole; the base and the top plate are detachably connected through at least three connecting structures. Through the base and the top plate which are arranged in the first direction, the bottom end and the top end of the spring needle can be fixed and limited through the first needle hole and the second needle hole, the stability of the two ends of the spring needle is guaranteed through the second needle hole of a through hole structure, the spring needle can be prevented from shifting at the top end of the spring needle during testing, and the reliability of the testing process is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spring needle testing, in particular to a spring needle testing fixture. BACKGROUND

[0002] Semiconductor spring needles are widely used in chip, mobile phone, computer, consumer electronics and other technical fields, and are a kind of high-end electronic components with very strict testing requirements.

[0003] The structure of a semiconductor spring needle is usually composed of a needle shaft, a needle body and a spring. The needle shaft and the spring are installed inside the needle body. The needle shaft and the spring are kept inside the needle body as a whole structure by means of compression riveting or using one end compression and the other end dotting at both ends of the needle body pipe mouth. In use, the needle shaft is compressed against the spring, and the spring force of the spring pushes against the needle shaft, so that the needle shaft and the measured part are in good contact for testing. Generally, the needle shaft can be arranged at the top end of the needle body or at both ends of the needle body.

[0004] The existing spring needle needs to be tested after production. Not only the needle shaft needs to be repeatedly pressed, but also the angle and force of pressing need to be ensured. At present, when testing the spring needle, a fixture is usually used to fix the needle body of the spring needle, and then the end of the needle shaft is made to protrude and cooperate with the pressure testing mechanism. However, the existing fixture generally has poor fixing effect on the spring needle, and the spring needle is easy to deviate, which affects the testing accuracy. CONTENT OF THE INVENTION

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a spring needle testing fixture to improve the testing effect of the spring needle testing fixture.

[0006] The present application provides a spring needle testing fixture, comprising a base and a top plate arranged opposite in a first direction,

[0007] A plurality of first needle holes are formed in the base, and a plurality of second needle holes are formed in the top plate. The plurality of first needle holes and the plurality of second needle holes are arranged one by one in the first direction.

[0008] The first needle hole is used to accommodate the bottom end of the spring needle, and the second needle hole is a through hole. The top end of the spring needle passes through the second needle hole and protrudes to the outside of the second needle hole.

[0009] The base and the top plate are detachably connected by at least three connecting structures.

[0010] Based on the spring needle test fixture, through the base and the top plate arranged along the first direction, the bottom end and the top end of the spring needle can be fixed and limited by the first needle hole and the second needle hole, the stability of the two ends of the spring needle is ensured by the second needle hole with the through hole structure, and the deviation of the spring needle at the top end during testing is avoided, and the reliability of the testing process is ensured.

[0011] Optionally, a first limiting part is arranged on the top surface of the base, and the first limiting part abuts against the bottom of the needle body of the spring needle;

[0012] and / or,

[0013] A second limiting part is arranged on the bottom surface of the top plate, and the second limiting part abuts against the top of the needle body of the spring needle.

[0014] Further, based on the spring needle test fixture, the two ends of the needle body can be limited by the first limiting part and the second limiting part, so that the needle body is fixed in the first direction.

[0015] Optionally, a groove for avoiding at least part of the needle body is arranged on the base and / or the top plate.

[0016] Further, based on the groove, a gap can be formed between the base and the top plate, so that the contact area between the base and the top plate is not too large, the precision of the cooperation between the base and the top plate is not affected, the error of the coaxiality of the first needle hole and the corresponding second needle hole is smaller, and the production cost of the base and the top plate is reduced.

[0017] Optionally, the circumferential sides of the base and the top plate both have mutually abutting flat parts.

[0018] Further, based on the arrangement of the flat parts, the base and the top plate can have sufficient contact area, and the stability of the relative fixation of the base and the top plate is improved. The flat part can be a ring structure, or can be composed of a plurality of point structures, or can be composed of a plurality of strip structures, which can be selected according to actual conditions.

[0019] Optionally, a positioning pin extending along the first direction is arranged on the base, and a positioning groove slidingly connected with the positioning pin is arranged on the top plate,

[0020] and / or,

[0021] A positioning pin extending along the first direction is arranged on the top plate, and a positioning groove slidingly connected with the positioning pin is arranged on the base.

[0022] Further, based on the arrangement of the positioning pin and the positioning groove, the positioning accuracy between the base and the top plate can be ensured when the base and the top plate are connected, and the base and the top plate can slide accurately along the first direction, so that the first needle hole and the second needle hole are prevented from being offset in the direction perpendicular to the first direction, and the needle body is prevented from being damaged.

[0023] Optionally, the positioning pins are arranged on the flat portion in a uniform manner along the circumference of the groove.

[0024] Optionally, the base is provided with a connecting bolt extending along the first direction, and the top plate is provided with a bolt groove threadedly matched with the connecting bolt.

[0025] and / or,

[0026] the top plate is provided with a connecting bolt extending along the first direction, and the base is provided with a bolt groove threadedly matched with the connecting bolt.

[0027] Optionally, the connecting bolts are arranged on the flat portion in a uniform manner along the circumference of the groove.

[0028] Optionally, the diameter of the first needle hole is matched with the diameter of the bottom end of the pogo pin,

[0029] and / or,

[0030] the diameter of the second needle hole is matched with the diameter of the top end of the pogo pin.

[0031] Further, based on the first needle hole and the second needle hole, the first needle hole can support the bottom end of the pogo pin in the direction perpendicular to the first direction, and the stability of the bottom end of the pogo pin in the first needle hole is improved.

[0032] Optionally, the first needle hole is a through hole, and the depth of the first needle hole is greater than the length of the bottom end of the pogo pin.

[0033] Further, based on the first needle hole, the bottom end of the pogo pin can be prevented from being affected by the gas resistance in the first needle hole, and the pogo pin is prevented from being placed in place.

[0034] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0035] The disclosure of the present application will become more apparent from the following description in conjunction with the accompanying drawings. It is readily understood by those skilled in the art that the drawings are only for the purpose of illustration and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the figures are used to represent similar components, wherein:

[0036] Figure 1Structure schematic diagram of spring needle test fixture described in the embodiment of the present application;

[0037] Figure 2 Structure schematic diagram below the spring needle test fixture described in the embodiment of the present application;

[0038] Figure 3 Structure schematic diagram of spring needle placed on the base described in the embodiment of the present application;

[0039] Figure 4 Structure schematic diagram of base described in the embodiment of the present application;

[0040] Figure 5 Structure schematic diagram of Figure 4 Partial enlarged view of A in FIG. 8;

[0041] Figure 6 Structure schematic diagram of top plate described in the embodiment of the present application;

[0042] Figure 7 Structure schematic diagram of Figure 6 Partial enlarged view of A in FIG. 9;

[0043] Figure 8 Structure schematic diagram of top plate from another angle described in the embodiment of the present application;

[0044] Figure 9 Structure schematic diagram of bottom of spring needle test fixture described in the embodiment of the present application;

[0045] Figure 10 Structure schematic diagram of Figure 9 Sectional view of C-C in FIG. 10.

[0046] Explanation of reference signs

[0047] 11, base; 111, first needle hole; 112, first limiting part; 12, top plate; 121, second needle hole; 122, second limiting part; 2, spring needle; 21, bottom end; 22, top end; 23, needle body; 31, positioning pin; 32, positioning groove; 41, connecting bolt; 42, bolt groove. DETAILED DESCRIPTION

[0048] Some embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0049] The existing spring needle often needs to be tested after production, not only the needle shaft needs to be pressed repeatedly, but also the angle and force of pressing need to be ensured to be the same. At present, when the spring needle is tested, the needle body of the spring needle is fixed by using a jig, and then the end of the needle shaft is exposed and cooperates with a pressure testing mechanism. However, the existing jig generally has a general fixing effect on the spring needle, and the spring needle is easily deviated, which affects the testing accuracy.

[0050] Therefore, the spring needle testing jig is provided. The bottom end and the top end of the spring needle can be fixed and limited by the first needle hole and the second needle hole arranged in the first direction. The stability of the two ends of the spring needle can be ensured by the through hole structure of the second needle hole, and the deviation of the spring needle at the top end during testing can be avoided, so that the reliability of the testing process is ensured.

[0051] The present application will be described in detail below through specific embodiments.

[0052] Referring to FIGS. 1 to 3, Figure 1 and Figure 10 The spring needle testing jig provided by the present embodiment includes a base 11 and a top plate 12 arranged oppositely in a first direction. The base 11 is provided with a plurality of first needle holes 111, and the top plate 12 is provided with a plurality of second needle holes 121. The plurality of first needle holes 111 and the plurality of second needle holes 121 are arranged one by one in the first direction. The first direction refers to the extension direction of the spring needle 2, which can be a vertical direction, that is, a height direction. The first needle hole 111 is used to accommodate the bottom end 21 of the spring needle 2. The second needle hole 121 is a through hole, the top end 22 of the spring needle 2 passes through the second needle hole 121 and extends to the outside of the second needle hole 121. The base 11 and the top plate 12 are detachably connected by at least three connecting structures. The top end 22 of the spring needle 2 can be a needle shaft, that is, a telescopic test point, or both the top end 22 and the bottom end 21 can be needle shafts, both of which are telescopic test points.

[0053] The spring needle testing jig provided by the present embodiment can fix and limit the bottom end 21 and the top end 22 of the spring needle 2 by the base 11 and the top plate 12 arranged in the first direction. The stability of the two ends of the spring needle 2 can be ensured by the through hole structure of the second needle hole 121, and the deviation of the spring needle 2 at the top end 22 during testing can be avoided, so that the reliability of the testing process is ensured.

[0054] In some embodiments, the top surface of the base 11 is provided with a first limiting portion 112, and the first limiting portion 112 abuts against the bottom of the needle body 23 of the spring needle 2. The bottom surface of the top plate 12 is provided with a second limiting portion 122, and the second limiting portion 122 abuts against the top of the needle body 23 of the spring needle 2.

[0055] Further, based on the above spring needle test fixture, through the setting of the first limiting part 112 and the second limiting part 122, the two ends of the needle body 23 can be limited, so that the needle body 23 is fixed in the first direction.

[0056] Continue to refer to Figures 6 to 8 And Figure 10 It is shown that the base 11 and / or the top plate 12 is provided with a groove for avoiding at least part of the needle body 23.

[0057] Further, based on the above groove, a gap can be formed between the base 11 and the top plate 12, avoiding the contact area between the two being too large, affecting the accuracy of the cooperation between the two, ensuring that the coaxiality error of the first needle hole 111 and the corresponding second needle hole 121 is smaller. This arrangement reduces the interference between the contact surfaces of the base 11 and the top plate 12, and also reduces the production cost of the base 11 and the top plate 12.

[0058] Continue to refer to Figures 6 to 8 And Figure 10 It is shown that the base 11 and the top plate 12 both have a plane part that abuts each other on the side; the plane part can be around the side of the groove, that is, around the outer side of the part that fixes the needle body 23.

[0059] Further, based on the setting of the above plane part, the base 11 and the top plate 12 can have sufficient contact area, improving the stability of the relative fixation of the two, the plane part can be a ring structure, or it can be composed of multiple point structures, or it can be composed of multiple strip structures, which can be selected according to actual conditions.

[0060] In some embodiments, the base 11 is provided with a positioning pin 31 extending in the first direction, and the top plate 12 is provided with a positioning groove 32 slidingly connected with the positioning pin 31, and / or the top plate 12 is provided with a positioning pin 31 extending in the first direction, and the base 11 is provided with a positioning groove 32 slidingly connected with the positioning pin 31.

[0061] Further, based on the setting of the above positioning pin 31 and the positioning groove 32, when connecting the base 11 and the top plate 12, the positioning accuracy between the base 11 and the top plate 12 can be ensured, and when the two are sliding, they can slide accurately in the first direction, avoiding the first needle hole 111 and the second needle hole 121 from being offset in a direction perpendicular to the first direction, thereby damaging the needle body 23.

[0062] Optionally, the positioning pins 31 are evenly distributed on the flat part along the circumference of the groove. That is, the number of positioning pins 31 can be two or more. Specifically, the number of positioning pins 31 on the base 11 can be two or more, and the positioning pins 31 on the base 11 are evenly distributed on the flat part of the base 11 along the circumference of the groove. The number of positioning pins 31 on the top plate 12 can be two or more, and the positioning pins 31 on the top plate 12 are evenly distributed on the flat part of the top plate 12 along the circumference of the groove.

[0063] Continue to refer to Figures 1 to 3 As shown, the base 11 is provided with a connecting bolt 41 extending in the first direction, and the top plate 12 is provided with a bolt groove 42 that is threadedly engaged with the connecting bolt 41. At this time, the head of the connecting bolt 41 is located on the side of the base 11 away from the top plate 12. After the connecting bolt 41 is connected to the bolt groove 42, the base 11 and the top plate 12 can be fastened by the head and the threaded part. And / or, the top plate 12 is provided with a connecting bolt 41 extending in the first direction, and the base 11 is provided with a bolt groove 42 that is threadedly engaged with the connecting bolt 41. At this time, the head of the connecting bolt 41 is located on the side of the top plate 12 away from the base 11. After the connecting bolt 41 is connected to the bolt groove 42, the base 11 and the top plate 12 can be fastened by the head and the threaded part.

[0064] In some further embodiments, the connecting bolts 41 are evenly distributed on the flat part along the circumference of the groove. That is, the number of connecting bolts 41 can be two or more. Specifically, the number of connecting bolts 41 on the base 11 can be two or more, and the connecting bolts 41 on the base 11 are evenly distributed along the circumference of the groove. The number of connecting bolts 41 on the top plate 12 can be two or more, and the connecting bolts 41 on the top plate 12 are evenly distributed along the circumference of the groove.

[0065] In some embodiments, the diameter of the first pinhole 111 matches the diameter of the bottom end 21 of the spring needle 2, and / or the diameter of the second pinhole 121 matches the diameter of the top end 22 of the spring needle 2.

[0066] Furthermore, based on the first pinhole 111 and the second pinhole 121, the first pinhole 111 can support the bottom end 21 of the spring needle 2 in a direction perpendicular to the first direction, thereby improving the stability of the bottom end 21 of the spring needle 2 within the first pinhole 111.

[0067] In some embodiments, the first pinhole 111 is a through hole, and the depth of the first pinhole 111 is greater than the length of the bottom end 21 of the spring pin 2.

[0068] Furthermore, based on the aforementioned first pinhole 111, the bottom end 21 of the spring needle 2 can be prevented from being subjected to gas resistance within the first pinhole 111, thus avoiding affecting the placement of the spring needle 2.

[0069] In some embodiments, the first pinhole 111 is a through hole, and the depth of the first pinhole 111 is less than the length of the bottom end 21 of the pogo pin 2.

[0070] Further, based on the first pinhole 111 described above, the bottom end 21 of the pogo pin 2 can extend outside the first pinhole 111, so as to realize the bottom end 21 and the top end 22 of the pogo pin 2 to be tested at the same time, and improve the test efficiency.

[0071] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0072] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above-described embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A spring pin test fixture, characterized by, The utility model relates to a spring needle fixing device, including: The base (11) and the top plate (12) are oppositely arranged in the first direction, A plurality of first pinholes (111) are formed on the base (11), and a plurality of second pinholes (121) are formed on the top plate (12), the plurality of first pinholes (111) and the plurality of second pinholes (121) are arranged one by one in the first direction, The first pinhole (111) is used for accommodating the bottom end (21) of the spring needle (2), the second pinhole (121) is a through hole, the top end (22) of the spring needle (2) passes through the second pinhole (121) and extends to the outside of the second pinhole (121), The base (11) and the top plate (12) are detachably connected by at least three connecting structures.

2. The spring pin test fixture of claim 1, wherein, A first limiting part (112) is arranged on the top surface of the base (11), and the first limiting part (112) abuts against the bottom of the needle body (23) of the spring needle (2), And / or, A second limiting part (122) is arranged on the bottom surface of the top plate (12), and the second limiting part (122) abuts against the top of the needle body (23) of the spring needle (2).

3. The spring pin test fixture of claim 2, wherein, A groove is formed on the base (11) and / or the top plate (12) for avoiding at least part of the needle body (23).

4. The spring pin test fixture of claim 3, wherein, The circumferential side of the base (11) and the circumferential side of the top plate (12) both have plane parts that abut against each other.

5. The spring pin test fixture of claim 4, wherein, A positioning pin (31) extending in the first direction is arranged on the base (11), and a positioning groove (32) slidingly connected with the positioning pin (31) is arranged on the top plate (12), And / or, A positioning pin (31) extending in the first direction is arranged on the top plate (12), and a positioning groove (32) slidingly connected with the positioning pin (31) is arranged on the base (11).

6. The spring pin test fixture of claim 5, wherein, The positioning pins (31) are uniformly arranged on the plane parts in the circumferential direction of the groove.

7. The spring pin test fixture of claim 4, wherein, A connecting bolt (41) extending in the first direction is arranged on the base (11), and a bolt groove (42) threadedly connected with the connecting bolt (41) is arranged on the top plate (12), And / or, A connecting bolt (41) extending in the first direction is arranged on the top plate (12), and a bolt groove (42) threadedly connected with the connecting bolt (41) is arranged on the base (11).

8. The spring pin test fixture of claim 7, wherein, The connecting bolts (41) are uniformly arranged on the plane parts in the circumferential direction of the groove.

9. The pogo pin test fixture of claim 1, wherein, The diameter of the first pinhole (111) matches the diameter of the bottom end (21) of the spring needle (2), And / or, The diameter of the second pinhole (121) matches the diameter of the top end (22) of the spring needle (2).

10. The pogo pin test fixture of claim 1, wherein, The first pinhole (111) is a through hole, and the depth of the first pinhole (111) is greater than the length of the bottom end (21) of the spring needle (2).

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