Clamping mechanism and resistance testing device

Abstract

The invention discloses a clamping mechanism and a resistance testing device, the resistance testing device comprises the clamping mechanism and a resistance tester, and a resistance testing pin is connected with the resistance tester. The clamping mechanism comprises a clamping support, a resistance measuring needle and a clamping assembly, the resistance measuring needle is arranged on the clamping support, the resistance measuring needle can move in the preset first direction to adjust the position, and the resistance measuring needle can rotate along the central axis in the length direction of the resistance measuring needle to adjust the position; the clamping assembly is arranged on the clamping support and used for clamping a resistance value test object. The position of the resistance measuring needle can be adjusted so as to contact different positions of a resistance value test object and further test the resistance value from different parts. And the distance between the resistance testing needle and the clamping mechanism can be adjusted through movement of the resistance testing needle, so that the resistance testing device is adaptive to resistance testing objects with different sizes. The method can be widely applied to the technical field of resistance detection.

Description

Technical Field

[0001] The present application relates to the field of resistance detection technology, and in particular to a clamping mechanism and a resistance value testing device. Background Art

[0002] Chip resistors are small in size, light in weight, strong in shock resistance, strong in anti-interference ability, and good in high-frequency characteristics. They are widely used in consumer electronic products such as computers and mobile phones. To adapt to different usage scenarios, chip resistors have a variety of sizes, such as 1206, 0805, 0603, etc.

[0003] In the related art, a chip resistor tester is usually used to test the resistance of a chip resistor. However, the chip resistor tester can only measure the resistance from the back electrode of the chip resistor, and cannot test the resistance from other positions of the chip resistor. It cannot fully reflect the resistance difference of each part of the chip resistor. For a failed sample, it is impossible to determine which part has too high resistance and causes the failure. In addition, it is difficult to adapt to chip resistors of different specifications. Therefore, it is necessary to design a resistance test device with wider adaptability. Summary of the invention

[0004] In order to solve at least one of the above technical problems, the present application provides a clamping mechanism and a resistance testing device, and the technical solutions adopted are as follows.

[0005] The resistance testing device provided in the present application comprises a clamping mechanism and a resistance tester, and the resistance measuring needle is connected to the resistance tester.

[0006] The clamping mechanism provided in the present application includes a clamping bracket, a resistance measuring needle and a clamping assembly, wherein the resistance measuring needle is arranged on the clamping bracket, the resistance measuring needle can move along a preset first direction to adjust its position, and the resistance measuring needle can rotate along the central axis of its own length direction to adjust its position; the clamping assembly is arranged on the clamping bracket, and the clamping assembly is used to clamp a resistance test object.

[0007] In certain embodiments of the present application, the clamping bracket includes a first bracket, one end of the resistance measuring needle is arranged on the first bracket through a first mounting seat, the first mounting seat can be moved along a first direction on the first bracket to adjust the position, the resistance measuring needle is arranged on the first mounting seat and the resistance measuring needle can be rotated along the central axis of its own length direction to adjust the position.

[0008] In certain embodiments of the present application, the first bracket includes a crossbeam extending along a first direction, and the first mounting seat is sleeved on an outer side wall of the crossbeam.

[0009] In certain embodiments of the present application, the first mounting seat is provided with a mounting hole, the mounting hole is formed along a second direction perpendicular to the first direction, and one end of the resistance measuring needle is arranged in the mounting hole.

[0010] In certain embodiments of the present application, the number of the resistance measuring needles is two, the two resistance measuring needles are spaced apart along a first direction, the spacing between the two resistance measuring needles along the first direction is adjustable, and the clamping assembly is located between the two resistance measuring needles.

[0011] In certain embodiments of the present application, the clamping bracket includes a second bracket, and the clamping assembly is disposed on the second bracket via a second mounting seat. On the second bracket, the second mounting seat can adjust the height along a third direction perpendicular to the first direction.

[0012] In certain embodiments of the present application, the second bracket includes a second column, and the second mounting seat is sleeved on an outer side wall of the second column.

[0013] In certain embodiments of the present application, the clamping assembly includes a clamping base and two clamping components, the clamping components are movably disposed on the clamping base, and the clamping assembly enables the two clamping components to clamp the resistance test object through a clamping elastic member.

[0014] In certain embodiments of the present application, the clamping base is provided with an opening and closing guide groove, the two clamping parts each have a protruding end, the protruding end is movably inserted in the opening and closing guide groove, the clamping elastic part is located in the opening and closing guide groove, the clamping elastic part is located between the two clamping parts, the end of the clamping elastic part is connected to the protruding end of the clamping part, and the clamping elastic part applies an elastic pulling force to the clamping part.

[0015] The present application has at least the following beneficial effects: in the resistance test device, the clamping assembly of the clamping mechanism is used to clamp the resistance test object, and the resistance measuring needle is used to contact the resistance test object and can be energized, thereby completing the resistance test. The resistance measuring needle can move to adjust the position and the resistance measuring needle can rotate to adjust the position, so that the resistance measuring needle can contact different positions of the resistance test object, thereby testing the resistance from different parts. And the resistance measuring needle can adjust the distance between the resistance measuring needle and the clamping mechanism by moving, thereby adapting to resistance test objects of different sizes. The present application can be widely used in the field of resistance detection technology.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further illustrated below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments embodied in the following drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0018] Figure 1 : is a structural diagram of the clamping mechanism, in which the X direction is the first direction, the Y direction is the second direction, and the Z direction is the third direction.

[0019] Figure 2 This is the structural diagram of the clamping mechanism.

[0020] Figure 3 This is a structural diagram of the clamping bracket.

[0021] Figure 4 This is a structural diagram of the clamping assembly.

[0022] Figure 5 Structural diagram of a clamping assembly for clamping a resistance test object.

[0023] Figure markings: resistance measuring needle 1000; contact needle head 1100; clamping assembly 2000; clamping base 2100; opening and closing guide groove 2101; clamping component 2200; protruding end 2201; clamping elastic member 2300; first mounting seat 3101; crossbeam 3102; first column 3103; first locking structure 3104; second locking structure 3105; first base 3200; second mounting seat 3301; second column 3302; third locking structure 3303. DETAILED DESCRIPTION

[0024] Combine the following Figures 1 to 5 The embodiments of the present application are described in detail, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do 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 should not be understood as a limitation on the present application.

[0026] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In the description of the present application, if there is a description with reference to the terms "one embodiment", "some embodiments", "an embodiment", "some examples", "some embodiments", "illustrative embodiment", "example", "specific example", "some examples", etc., it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] The present application relates to a resistance testing device, which includes a clamping mechanism and a resistance tester, wherein a resistance measuring needle 1000 of the clamping mechanism is connected to the resistance tester. Specifically, the resistance tester is connected to the resistance measuring needle 1000 via a wire, a resistance test object is placed in the clamping mechanism, and the resistance tester is used to test the resistance.

[0030] The other components and operations of the resistance tester are well known in the relevant technologies to ordinary technicians in this field and will not be described in detail here. The structure of the clamping mechanism will be introduced below.

[0031] The present application relates to a clamping mechanism, which includes a clamping bracket, a resistance measuring needle 1000 and a clamping assembly 2000. The resistance measuring needle 1000 has a contact needle head 1100. The resistance measuring needle 1000 is arranged on the clamping bracket, and the clamping assembly 2000 is arranged on the clamping bracket. It can be understood that the clamping assembly 2000 is used to clamp a resistance test object, the resistance measuring needle 1000 is used to contact the electrode of the resistance test object and conduct electricity with the resistance test object, and the resistance tester reads the resistance reading.

[0032] Furthermore, on the clamping bracket, the resistance measuring needle 1000 can rotate along the central axis of its own length direction, and the resistance measuring needle 1000 rotates to adjust the direction of the contact needle 1100 so that the contact needle 1100 contacts the surface of the resistance test object.

[0033] It should be noted that, on the clamping bracket, the resistance measuring needle 1000 can be moved and adjusted along a preset first direction to adjust the distance between the resistance measuring needle 1000 and the resistance test object, so that the contact needle 1100 can contact the surface of the resistance test object. On the clamping bracket, the resistance measuring needle 1000 extends along a second direction perpendicular to the first direction. It can be understood that the clamping mechanism is designed so that the resistance measuring needle 1000 can be both movable and rotatable, so that the contact needle 1100 of the resistance measuring needle 1000 can adjust its position to contact different positions of the resistance test object, and can test the resistance not only from the back electrode, but also from the front electrode and the side electrode. The clamping mechanism has a wider applicability and improves the accuracy of the resistance test.

[0034] In some embodiments, the clamping bracket includes a first bracket, and one end of the resistance measuring needle 1000 is disposed on the first bracket through a first mounting seat 3101. Specifically, the resistance measuring needle 1000 is disposed on the first mounting seat 3101, and the first mounting seat 3101 is movably disposed on the first bracket. Further, on the first mounting seat 3101, the resistance measuring needle 1000 can rotate along the central axis of its length direction.

[0035] It is understandable that the first mounting seat 3101 is provided with a mounting hole, the mounting hole is formed along a second direction perpendicular to the first direction, and one end of the resistance measuring needle 1000 is arranged in the mounting hole. Specifically, the end of the resistance measuring needle 1000 away from the contact needle head is arranged in the mounting hole.

[0036] Furthermore, the resistance measuring needle 1000 can be fixed to the first mounting seat 3101 by the first locking structure 3104 to fix the position of the resistance measuring needle 1000 after rotation. Specifically, the first locking structure 3104 is disposed on the first mounting seat 3101, and the first locking structure 3104 presses against the outer wall of the resistance measuring needle 1000.

[0037] In some examples, the first locking structure 3104 is arranged on the first mounting seat 3101 in a threaded locking manner. Specifically, the first locking structure 3104 is provided with an external thread, and the first mounting seat 3101 is provided with a threaded hole for installing the first locking structure 3104. It can be understood that the first locking structure 3104 is threadedly connected to the first mounting seat 3101, and when the front end of the first locking structure 3104 is against the outer wall of the resistance measuring needle 1000, the resistance measuring needle 1000 is fixed on the first mounting seat 3101 to ensure the stability of the measurement; when the first locking structure 3104 is not locked, the resistance measuring needle 1000 can rotate along the central axis of its own length direction.

[0038] In some examples, the first locking structure 3104 includes a stud, a bolt, or a screw.

[0039] It should be noted that the first mounting seat 3101 can be moved along the first direction on the first bracket to adjust the position so that the resistance measuring needle 1000 can be adjusted along the first direction.

[0040] Specifically, the first bracket includes a beam 3102 extending along a first direction. The first mounting seat 3101 is sleeved on an outer wall of the beam 3102. The first mounting seat 3101 can reciprocate along the first direction on the beam 3102 to adjust the position.

[0041] In some examples, the first mounting seat 3101 can be fixed to the first bracket by the second locking structure 3105 to fix the position of the first mounting seat 3101 after moving. Specifically, the second locking structure 3105 is provided on the first mounting seat 3101, and the second locking structure 3105 can press against the outer side wall of the beam 3102.

[0042] Further, the second locking structure 3105 is arranged on the first mounting seat 3101 in a threaded locking manner. Specifically, the second locking structure 3105 is provided with an external thread, and the first mounting seat 3101 is provided with a threaded hole for installing the second locking structure 3105. It can be understood that the second locking structure 3105 is threadedly connected to the first mounting seat 3101, and when the front end of the second locking structure 3105 is against the outer wall of the beam 3102, the first mounting seat 3101 can be fixed on the beam 3102 to ensure the stability of the measurement; when the second locking structure 3105 is not locked, the first mounting seat 3101 can be moved and adjusted in the first direction, so that the resistance measuring needle 1000 can be adjusted in the first direction.

[0043] In some embodiments, the clamping bracket includes a first base 3200 , and the first bracket is disposed on an upper side of the first base 3200 .

[0044] Furthermore, the first bracket includes a first column 3103, which is vertically arranged on the upper side of the first base 3200, and there are two first columns 3103. The beam 3102 is located between the two first columns 3103, and both ends of the beam 3102 are respectively located on the two first columns 3103.

[0045] It should be noted that the first direction and the second direction are both parallel to the upper side of the first base 3200 .

[0046] In some implementations, two resistance measuring needles 1000 are provided, the two resistance measuring needles 1000 are spaced apart along the first direction, and the clamping assembly 2000 is located between the two resistance measuring needles 1000 .

[0047] It can be understood that the distance between the two resistance measuring needles 1000 along the first direction is adjustable so that the contact needles 1100 of the two resistance measuring needles 1000 can both contact the resistance test object.

[0048] In some embodiments, the height of the clamping assembly 2000 is adjustable to adjust the height of the resistance test object, thereby facilitating the contact needle 1100 of the resistance measuring needle 1000 to contact different positions of the resistance test object. Not only can the resistance be tested from the back electrode, but also from the front electrode and the side electrode, thereby improving the applicability of the clamping mechanism and improving the accuracy of the resistance test.

[0049] Specifically, the clamping bracket includes a second bracket, and the clamping assembly 2000 is arranged on the second bracket through a second mounting seat 3301. The clamping assembly 2000 is arranged on the second mounting seat 3301, and the second mounting seat 3301 is movably arranged on the second bracket. On the second bracket, the second mounting seat 3301 can adjust the height along a third direction perpendicular to the first direction. It should be noted that the third direction is perpendicular to the upper side of the first base 3200.

[0050] In some examples, the second bracket includes a second column 3302, and the second column 3302 is vertically arranged on the upper side of the first base 3200. The second mounting seat 3301 is sleeved on the outer side wall of the second column 3302, and the second mounting seat 3301 can be raised and lowered along the third direction on the second column 3302 to adjust the height.

[0051] In some examples, the second mounting seat 3301 is fixed to the second bracket by the third locking structure 3303 to fix the moved position of the second mounting seat 3301. Specifically, the third locking structure 3303 is disposed on the second mounting seat 3301, and the third locking structure 3303 presses against the outer side wall of the second column 3302.

[0052] Further, the third locking structure 3303 is arranged on the second mounting seat 3301 in a threaded locking manner. Specifically, the third locking structure 3303 is provided with an external thread, and the second mounting seat 3301 is provided with a threaded hole for installing the third locking structure 3303. It can be understood that the third locking structure 3303 is threadedly connected to the second mounting seat 3301, and when the front end of the third locking structure 3303 is against the outer wall of the second column 3302, the second mounting seat 3301 can be fixed on the second column 3302 to ensure the stability of the test; when the third locking mechanism is not locked, the second mounting seat 3301 can adjust the height along the third direction.

[0053] In some embodiments, the clamping assembly 2000 includes a clamping base 2100 and two clamping components 2200, the clamping base 2100 is disposed on the second mounting seat 3301, and the clamping components 2200 are movably disposed on the clamping base 2100. It can be understood that the two clamping components 2200 are in relative positions, the two clamping components 2200 can be close to each other or away from each other, and the area between the two clamping components 2200 is used to clamp the resistance test object.

[0054] It should be noted that the clamping component 2200 is configured to be movable along the second direction, so that the clamping component 2200 clamps the middle part of the resistance test object in the first direction in the second direction, and the two end sides of the resistance test object in the first direction are exposed, so that these two ends of the resistance test object contact the contact needle 1100 of the resistance measuring needle 1000.

[0055] Furthermore, the clamping assembly 2000 includes a clamping elastic member 2300, and the clamping assembly 2000 enables the two clamping members 2200 to clamp the resistance test object through the clamping elastic member 2300. It can be understood that under the action of the clamping elastic member 2300, the two clamping members 2200 can be close to each other. On the other hand, under the elastic force of the clamping elastic member 2300, the two clamping members 2200 can clamp resistance test objects of different sizes, and the applicability of the clamping mechanism is wider.

[0056] Specifically, the clamping elastic member 2300 is located between the two clamping members 2200, the end of the clamping elastic member 2300 is connected to the clamping member 2200, and the clamping elastic member 2300 applies elastic tension to the clamping member 2200. Further, the clamping elastic member 2300 is configured as a tension spring. It is understandable that under the pulling of the clamping elastic member 2300, the two clamping members 2200 are moved closer to each other.

[0057] Regarding the arrangement of the clamping elastic member 2300 and the clamping component 2200 , there are at least the following embodiments.

[0058] In some embodiments, two clamping components 2200 are jointly configured with a clamping elastic member 2300 , and two ends of the clamping elastic member 2300 are respectively connected to the two clamping components 2200 , and the two ends of the clamping elastic member 2300 respectively generate elastic pulling force on the clamping components 2200 .

[0059] In other embodiments, the clamping assembly 2000 is configured with a clamping elastic member 2300 for each of the two clamping members 2200, and the clamping elastic member 2300 is disposed between the two clamping members 2200. One end of the clamping elastic member 2300 is connected to the clamping member 2200, and the other end of the clamping elastic member 2300 is connected to the clamping base 2100, and the clamping elastic member 2300 applies elastic tension to the clamping member 2200.

[0060] It should be noted that in some other embodiments, the clamping assembly 2000 is replaced by a clamping elastic member 2300 that applies an elastic thrust to the clamping member 2200. In this case, the clamping elastic member 2300 is configured as a compression spring. Under the push of the clamping elastic member 2300, the two clamping members 2200 approach each other. Specifically, the clamping assembly 2000 is configured with a clamping elastic member 2300 for each of the two clamping members 2200, and the clamping elastic member 2300 is arranged on the opposite side of the two clamping members 2200, one end of the clamping elastic member 2300 is connected to the clamping member 2200, and the other end of the clamping elastic member 2300 is connected to the clamping base 2100.

[0061] In some implementations, the clamping base 2100 is provided with an opening and closing guide groove 2101 .

[0062] In some examples, the opening and closing guide groove 2101 is configured as a through hole extending from one end side surface of the clamping base 2100 to the other end side surface, and the two clamping parts 2200 are provided with protruding ends 2201 on the sides facing each other, and the protruding ends 2201 extend into the opening and closing guide groove 2101 along the extension direction of the opening and closing guide groove 2101, and the end of the clamping elastic member 2300 is connected to the protruding ends 2201. The opening and closing guide groove 2101 provides a guide for the opening and closing of the clamping parts 2200. Further, the opening and closing guide groove 2101 is arranged along the second direction.

[0063] In some examples, the clamping elastic member 2300 is located in the opening and closing guide groove 2101 .

[0064] It can be understood that the two clamping components 2200 clamp the resistance test object on their facing sides, and the upper surface of the clamping base 2100 can also support the resistance test object.

[0065] Regarding the opening and closing guide groove 2101, there may be at least the following alternative embodiments.

[0066] In some alternative embodiments, the opening and closing guide groove 2101 is disposed on the clamping base 2100 for supporting the upper surface of the resistance test object, and the clamping component 2200 is movably engaged with the opening and closing guide groove 2101 .

[0067] The above is a detailed description of the implementation methods of the present application in conjunction with the accompanying drawings, but the present application is not limited to the above implementation methods. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A clamping mechanism, characterized in that: include Clamping bracket; A resistance measuring needle, the resistance measuring needle is arranged on the clamping bracket, the resistance measuring needle can be moved along a preset first direction to adjust the position, and the resistance measuring needle can be rotated along the central axis of its own length direction to adjust the position; A clamping assembly is arranged on the clamping bracket, and the clamping assembly is used to clamp the resistance test object.

2. The clamping mechanism according to claim 1, characterized in that: The clamping bracket includes a first bracket, one end of the resistance measuring needle is set on the first bracket through a first mounting seat, the first mounting seat can be moved along a first direction on the first bracket to adjust the position, the resistance measuring needle is set on the first mounting seat and the resistance measuring needle can be rotated along the central axis of its own length direction to adjust the position.

3. The clamping mechanism according to claim 2, characterized in that: The first bracket includes a crossbeam extending along a first direction, and the first mounting seat is sleeved on an outer side wall of the crossbeam.

4. The clamping mechanism according to claim 2, characterized in that: The first mounting seat is provided with a mounting hole, the mounting hole is formed along a second direction perpendicular to the first direction, and one end of the resistance measuring needle is arranged in the mounting hole.

5. The clamping mechanism according to any one of claims 1 to 4, characterized in that: The resistance measuring needles are provided in two numbers, the two resistance measuring needles are spaced apart along the first direction, the spacing between the two resistance measuring needles along the first direction is adjustable, and the clamping assembly is located between the two resistance measuring needles.

6. The clamping mechanism according to claim 1, characterized in that: The clamping bracket includes a second bracket, and the clamping assembly is arranged on the second bracket through a second mounting seat. On the second bracket, the second mounting seat can adjust the height along a third direction perpendicular to the first direction.

7. The clamping mechanism according to claim 6, characterized in that: The second bracket includes a second column, and the second mounting seat is sleeved on the outer side wall of the second column.

8. The clamping mechanism according to claim 1, 6 or 7, characterized in that: The clamping assembly comprises a clamping base and two clamping parts. The clamping parts are movably arranged on the clamping base. The clamping assembly enables the two clamping parts to clamp the resistance test object through a clamping elastic member.

9. The clamping mechanism according to claim 8, characterized in that: The clamping base is provided with an opening and closing guide groove, and the two clamping parts both have a protruding end, and the protruding end is movably inserted in the opening and closing guide groove. The clamping elastic part is located in the opening and closing guide groove, and the clamping elastic part is located between the two clamping parts. The end of the clamping elastic part is connected to the protruding end of the clamping part, and the clamping elastic part applies elastic tension to the clamping part.

10. A resistance testing device, characterized in that: include The clamping mechanism according to any one of claims 1 to 9; A resistance tester, wherein the resistance measuring needle is connected to the resistance tester.

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