Pad tension test auxiliary device and tension test equipment

Abstract

The utility model relates to the technical field of tension test equipment, and discloses a bonding pad tension test auxiliary device and tension test equipment. The bonding pad tension test auxiliary device comprises a supporting piece, a guiding piece and a detection needle, a welding area is formed on the supporting piece, and the welding area extends to the outer side of the supporting piece; the guiding piece is connected to the supporting piece, the guiding piece is provided with a guiding hole, the guiding hole is communicated with the welding area, and the extending direction of the guiding hole is used for being perpendicular to the to-be-tested bonding pad; the detection needle passes through the guide hole and is slidably sleeved with the guide member. When the test fixture clamps the upper end of the detection needle and pulls the detection needle upwards, the detection needle is perpendicular to the to-be-tested pad, so that the to-be-tested pad is subjected to a pulling force perpendicular to the pad, and the accuracy of the pad pulling force test is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tension testing equipment, and in particular relates to a pad tension testing auxiliary device and tension testing equipment. Background Art

[0002] There are pads on the circuit board, and the electronic components are soldered on the pads. Pad tensile test is a common test method used to evaluate the strength of the pads. The strength of the pads directly affects the stability of the electronic components, so pad tensile test is crucial in the circuit board manufacturing process.

[0003] In the related technology, the circuit board is first fixed, and then the detection needle is manually straightened, and the lower end of the detection needle is made to abut against the pad to be detected, and then the lower end of the detection needle is welded to the pad to be detected by soldering, and then the test fixture clamps the upper end of the detection needle, and then the test fixture pulls the detection needle upward to measure the maximum tensile force that the pad can withstand, that is, to measure the tensile strength of the pad.

[0004] However, since it is easier for the test needle to tilt toward the pad of the circuit board when it is manually straightened, when the test fixture clamps the upper end of the test needle and pulls it upward, the pad is more susceptible to a tearing force that is tilted toward the pad, while the tensile test requires a pulling force that is perpendicular to the pad, which reduces the accuracy of the pad tensile test. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the utility model provides a pad tensile test auxiliary device and a tensile test device, which ensure that the detection needle is perpendicular to the pad to be tested, thereby improving the accuracy of tensile detection.

[0006] The technical effects to be achieved by the utility model are achieved through the following aspects:

[0007] In a first aspect, the utility model provides a pad tension test auxiliary device, comprising:

[0008] A support member, the support member being formed with a welding area, the welding area extending to an outer side of the support member;

[0009] A guide member, the guide member is connected to the support member, the guide member is provided with a guide hole, the guide hole is communicated with the welding area, and the extension direction of the guide hole is perpendicular to the welding pad to be tested; and

[0010] A detection needle is inserted into the guide hole and slidably connected with the guide member.

[0011] In some implementations, the support member includes at least three support rods, one end of at least three of the support rods is connected to the periphery of the guide member, at least three of the support rods are arranged around the circumference of the guide member and at intervals, and at least three of the support rods together form the welding area.

[0012] In some implementations, the guide member is provided with at least three connection holes, and the at least three connection holes are arranged in one-to-one correspondence with at least three support rods, and the upper end of each support rod is threadedly connected to the corresponding connection hole.

[0013] In some implementations, each of the connection holes extends to the upper and lower sides of the guide member, respectively, and a screwing groove is formed on the upper end surface of each of the support rods.

[0014] In some implementations, the guide member is provided with a placement surface, the placement surface is perpendicular to the guide hole, and the pad tensile test auxiliary device also includes a level, the level is connected to the placement surface, and the level is offset from the guide hole.

[0015] In this implementation, the work surface is extended horizontally, and the circuit board is placed on the work surface so that the pad to be tested is parallel to the work surface, thereby making the pad to be welded extend horizontally; and because the placement surface is perpendicular to the extension direction of the guide hole, a level can be used to determine whether the guide hole and the pad to be tested are perpendicular, thereby improving the convenience of adjusting the angle between the guide hole and the pad to be tested.

[0016] In some implementations, the support member further includes at least three elastic pads, and the at least three elastic pads are connected to the lower end surfaces of at least three support rods in a one-to-one correspondence.

[0017] In some implementations, each of the support rods is arranged vertically.

[0018] In some implementations, the guide hole is opened at the center of the guide member.

[0019] In some implementations, the guide member is provided with a flared hole at the opening of the guide hole, and the diameter of the flared hole gradually increases in a direction away from the guide hole.

[0020] In a second aspect, the utility model provides a tensile testing device, including a test fixture and a pad tensile testing auxiliary device of any of the above-mentioned implementation modes, wherein the test fixture is used to clamp the upper end of the detection needle and pull the detection needle upward.

[0021] In summary, the utility model has at least the following benefits:

[0022] In the pad tension test auxiliary device of the utility model, after the support member is placed, the extension direction of the guide hole is perpendicular to the pad to be tested, so that the detection needle sleeved in the guide hole is also perpendicular to the pad to be tested, that is, the detection needle is guided by the guide hole of the guide member, ensuring that the detection needle is perpendicular to the pad to be tested, that is, avoiding the detection needle from tilting to the pad to be tested. When the test fixture clamps the upper end of the detection needle and pulls upward, since the detection needle is perpendicular to the pad to be tested, the pad to be tested is subjected to a pulling force perpendicular to the pad, thereby improving the accuracy of the pad tension test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a pad tension test auxiliary device according to some embodiments;

[0024] Figure 2 for Figure 1 A partial structural schematic diagram of a pad tensile test auxiliary device shown;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of the pad tensile test auxiliary device at position A is shown;

[0026] Figure 4 for Figure 1 Another structural schematic diagram of the pad tensile test auxiliary device shown;

[0027] Figure 5 Schematic diagram of the structure of the tensile testing equipment of some embodiments.

[0028] Mark in the figure: 10, tensile testing equipment;

[0029] 100. Pad tensile test auxiliary device;

[0030] 110, support member; 110a, support rod; 111, welding area; 112, twisting groove; 113, placement surface;

[0031] 120, guide member; 121, guide hole; 122, connecting hole;

[0032] 130, detection needle; 140, level; 150, elastic pad;

[0033] 200. Test fixture. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] Please see attached Figures 1 to 3 The pad tension test auxiliary device 100 of the utility model includes a support member 110, a guide member 120 and a detection needle 130.

[0038] Among them, the support member 110 is formed with a welding area 111, and the welding area 111 extends to the outside of the support member 110, and the external welding rod can enter the welding area 111 from the outside. The support member 110 is used to support the guide member 120, that is, the guide member 120 is connected to the support member 110. The guide member 120 is provided with a guide hole 121, and the guide hole 121 is connected to the welding area 111. The extension direction of the guide hole 121 is used to be perpendicular to the pad to be tested. The detection needle 130 is inserted into the guide hole 121 and slidably connected with the guide member 120, so that the detection needle 130 is also perpendicular to the pad to be tested.

[0039] In some of the embodiments, before performing a tensile test on the pads of the circuit board, the circuit board is placed on a work surface so that the pads to be tested are parallel to the work surface, and then the support member 110 is placed on the circuit board and / or the work surface, that is, the support member 110 is placed on at least one of the circuit board and the work surface, so that the guide hole 121 is perpendicular to the pads to be tested, and the guide hole 121 and the pads to be tested are arranged correspondingly up and down, and then the detection needle 130 is inserted downward into the guide hole 121, so that the detection needle 130 is slidably sleeved in the guide hole 121, and the lower end of the detection needle 130 is abutted against the pad to be tested, and then the lower end of the detection needle 130 is welded to the pad to be tested, and then the detection needle 130 is separated from the guide member 120, and finally the circuit board is fixed at the test station and a tensile test is performed.

[0040] It is understood that after the detection needle 130 is inserted, if the lower end of the detection needle 130 deviates from the pad to be tested, the position of the support member 110 can be fine-tuned so that the lower end of the detection needle 130 is aligned and abutted with the pad to be tested. It is also understood that after the position of the support member 110 is fine-tuned, the extension direction of the guide hole 121 is still perpendicular to the pad to be tested.

[0041] In other embodiments, before the pad of the circuit board is subjected to a tensile test, the circuit board is placed on a work surface, and then the detection needle 130 is inserted into the guide hole 121, and then the support member 110 is placed on the circuit board and / or the work surface, so that the extension direction of the guide hole 121 is perpendicular to the pad to be tested, and the lower end of the detection needle 130 is arranged correspondingly to the pad to be tested, and then the height of the detection needle 130 is fine-tuned so that the lower end of the detection needle 130 abuts against the pad to be tested, and then the lower end of the detection needle 130 is welded to the pad to be welded, and then the detection needle 130 is separated from the guide member 120, and finally the circuit board is fixed on the test station and the tensile test is performed. It can be understood that after the support member 110 is placed on the circuit board and / or the work surface, if the lower end of the detection needle 130 just abuts against the pad to be tested at this time, there is no need to fine-tune the height of the detection needle 130.

[0042] In the pad tension test auxiliary device 100 of the utility model, after the support member 110 is placed, the extension direction of the guide hole 121 is perpendicular to the pad to be tested, so that the detection needle 130 sleeved in the guide hole 121 is also perpendicular to the pad to be tested, that is, the detection needle 130 is guided by the guide hole 121 of the guide member 120, ensuring that the detection needle 130 is perpendicular to the pad to be tested, that is, avoiding the detection needle 130 from tilting to the pad to be tested. When the test fixture 200 clamps the upper end of the detection needle 130 and pulls it upward, since the detection needle 130 is perpendicular to the pad to be tested, the pad to be tested is subjected to a pulling force perpendicular to the pad, thereby improving the accuracy of the pad tension test.

[0043] In some preferred embodiments, the support member 110 includes at least three support rods 110a, one end of the at least three support rods 110a is connected to the periphery of the guide member 120, the at least three support rods 110a surround and are arranged at intervals along the circumference of the guide member 120, and the at least three support rods 110a together form a welding area 111. In this embodiment, the guide member 120 is supported by at least three support rods 110a, and each support rod 110a is connected to the periphery of the guide member 120, so that the space of the welding area 111 is increased, and the convenience of welding is improved.

[0044] In some preferred embodiments, the guide member 120 is provided with at least three connecting holes 122, and the at least three connecting holes 122 are arranged in a one-to-one correspondence with at least three support rods 110a. The upper end of each support rod 110a is threadedly connected to the corresponding connecting hole 122, so that the length of the support rod 110a extending out of the connecting hole 122 can be adjusted. Specifically, the extending length of the support rod 110a is adjusted by rotating the support rod 110a so that the extension direction of the guide hole 121 is perpendicular to the pad to be tested, so that the pad tensile test auxiliary device 100 can be adapted to different work surfaces, thereby improving the adaptability of the pad tensile test auxiliary device 100.

[0045] In some preferred embodiments, each connection hole 122 extends to the upper and lower sides of the guide member 120, and the upper end surface of each support rod 110a is provided with a screwing groove 112, which is adapted to a screwdriver. In this embodiment, when adjusting the extension length of each support rod 110a, one end of the screwdriver is inserted into the corresponding screwing groove 112, and then the screwdriver is screwed to adjust the extension length of the corresponding support rod 110a.

[0046] In some preferred embodiments, the support member 110 further includes at least three elastic pads 150, which are connected to the lower end surfaces of at least three support rods 110a one by one, that is, the lower end surface of each support member 110 is connected with an elastic pad 150. Each elastic pad 150 is elastic, which avoids the problem of the lower end of the support member 110 accidentally scratching the circuit board.

[0047] In some preferred embodiments, each support rod 110a is vertically arranged and is used to be perpendicular to the work surface.

[0048] In some preferred embodiments, the guide hole 121 is opened at the center of the guide member 120. In this embodiment, when the detection needle 130 is inserted into the guide hole 121, since the guide hole 121 is located at the center of the guide member 120, the force applied by the detection needle 130 to the guide member 120 is located at the center of the guide member 120, thereby improving the position stability of the guide member 120, thereby improving the position stability of the guide hole 121, and suppressing the problem of the angle between the guide hole 121 and the pad to be tested changing.

[0049] In some preferred embodiments, the guide member 120 is provided with a flaring hole at the opening of the guide hole 121, and the diameter of the flaring hole gradually increases in the direction away from the guide hole 121. In this embodiment, the detection needle 130 is inserted into the guide hole 121 through the flaring hole. Since the opening of the flaring hole is larger, it is easier for the detection needle 130 to be aligned with the flaring hole, and then it is easier for the detection needle 130 to be inserted into the guide hole 121, thereby improving the convenience and efficiency of sleeve-fitting the detection needle 130 in the guide hole 121.

[0050] It is understood that there can be one or two flaring holes. When there is one flaring hole, the flaring hole can be provided at either end of the guide hole 121. When there are two flaring holes, the two flaring holes are provided at both ends of the guide hole 121. It is also understood that in some other embodiments, the wire guide 120 can also omit the flaring hole.

[0051] Embodiment 2:

[0052] Based on the above embodiment, this embodiment further optimizes the structure of the pad tension test auxiliary device 100. Figure 4 .

[0053] The pad tensile test auxiliary device 100 of this embodiment further includes a level 140, the guide member 120 is provided with a placement surface 113, the placement surface 113 is perpendicular to the extension direction of the guide hole 121, the level 140 is connected to the placement surface 113, and the level 140 and the guide hole 121 are staggered to avoid the level 140 hindering the detection needle 130 from slidingly sleeved in the guide hole 121. In this embodiment, the work surface is horizontally extended, and the circuit board is placed on the work surface so that the pad to be tested is parallel to the work surface, so that the pad to be welded is horizontally extended; and because the placement surface 113 is perpendicular to the extension direction of the guide hole 121, the level 140 can be used to determine whether the guide hole 121 is perpendicular to the pad to be tested, thereby improving the convenience of adjusting the angle between the guide hole 121 and the pad to be tested.

[0054] Embodiment 3:

[0055] This embodiment provides a tensile testing device 10 based on the above embodiment. Figure 5 .

[0056] A tension test device 10 includes a test fixture 200 and a pad tension test auxiliary device 100. The test fixture 200 is used to clamp the upper end of a detection needle 130 and pull the detection needle 130 upward.

[0057] In the tension test device 10 of the present invention, after the support member 110 is placed, the extension direction of the guide hole 121 is perpendicular to the pad to be tested, so that the detection needle 130 sleeved in the guide hole 121 is also perpendicular to the pad to be tested, that is, the detection needle 130 is guided by the guide hole 121 of the guide member 120, ensuring that the detection needle 130 is perpendicular to the pad to be tested, that is, avoiding the detection needle 130 from tilting to the pad to be tested. When the test fixture 200 clamps the upper end of the detection needle 130 and pulls it upward, since the detection needle 130 is perpendicular to the pad to be tested, the pad to be tested is subjected to a pulling force perpendicular to the pad, thereby improving the accuracy of the pad tension test.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0060] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0061] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A pad tensile test auxiliary device, characterized in that: include: A support member (110), wherein the support member (110) is formed with a welding area (111), and the welding area (111) extends to the outside of the support member (110); A guide member (120), the guide member (120) being connected to the support member (110), the guide member (120) being provided with a guide hole (121), the guide hole (121) being connected to the welding area (111), and the extension direction of the guide hole (121) being perpendicular to the welding pad to be tested; and A detection needle (130), wherein the detection needle (130) is inserted into the guide hole (121) and is slidably sleeved with the guide member (120).

2. The pad tensile test auxiliary device according to claim 1, characterized in that: The support member (110) comprises at least three support rods (110a), one end of the at least three support rods (110a) is connected to the periphery of the guide member (120), the at least three support rods (110a) are arranged around and at intervals along the circumference of the guide member (120), and the at least three support rods (110a) together form the welding area (111).

3. The pad tensile test auxiliary device according to claim 2, characterized in that: The guide member (120) is provided with at least three connection holes (122), and the at least three connection holes (122) are arranged in one-to-one correspondence with at least three support rods (110a), and the upper end of each support rod (110a) is threadedly connected to the corresponding connection hole (122).

4. The pad tensile test auxiliary device according to claim 3, characterized in that: Each of the connecting holes (122) extends to the upper and lower sides of the guide member (120) respectively, and a screwing groove (112) is formed on the upper end surface of each of the supporting rods (110a).

5. The pad tensile test auxiliary device according to claim 3, characterized in that: The guide member (120) is provided with a placement surface (113), the placement surface (113) is perpendicular to the guide hole (121), and the pad tension test auxiliary device (100) further comprises a level (140), the level (140) is connected to the placement surface (113), and the level (140) and the guide hole (121) are arranged in a staggered manner.

6. The pad tensile test auxiliary device according to claim 2, characterized in that: The support member (110) further comprises at least three elastic pads (150), and the at least three elastic pads (150) are connected to the lower end surfaces of at least three support rods (110a) in a one-to-one correspondence.

7. The pad tension test auxiliary device according to claim 2, characterized in that: Each of the support rods (110a) is arranged vertically.

8. The pad tension test auxiliary device according to claim 1, characterized in that: The guide hole (121) is opened at the center of the guide member (120).

9. The pad tensile test auxiliary device according to any one of claims 1 to 8, characterized in that: The guide member (120) is provided with a flared hole at the opening of the guide hole (121), and the diameter of the flared hole gradually increases in a direction away from the guide hole (121).

10. A tensile testing device, characterized in that: The invention comprises a test fixture (200) and a pad tension test auxiliary device (100) according to any one of claims 1 to 9, wherein the test fixture (200) is used for clamping the upper end of the detection needle (130) and pulling the detection needle (130) upward.

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