Resistance detection tool

Abstract

The utility model provides a kind of resistance detection tool, including base, the base is equipped with several copper columns, the one end of base is equipped with rotating column, rotating column is rotatably connected with rotating member, the pull rod is movably connected with rotating member, the pull rod is parallel with the base, the one end of pull rod is equipped with several probe holes away from rotating column, the pull rod includes head and tail, the head is connected with the one end of tail, the head is rectangle, the tail is strip, several probe holes are arranged on the head.The pull rod and the rotating member are arranged to adjust the position of the probe.The probe hole on the pull rod can directly fix the probe, the second screw hole on the rotating member is used to quickly lock the extension length of the pull rod, and the rotation of the shaft sleeve can efficiently position the resistance point to be measured on the PCB, significantly shorten the manual adjustment time and improve the efficiency of the test process.

Description

Technical Field

[0001] This utility model relates to the field of resistance measurement technology, and in particular to a resistance detection tool. Background Technology

[0002] In fields such as electronics manufacturing, semiconductor testing, and power systems, resistance testing fixtures are core equipment used to measure resistance values ​​or detect circuit connection status. In recent years, they have significantly evolved towards higher precision and automation to meet the growing technological demands. However, this trend towards precision has brought about prominent problems: reliance on imported high-end equipment leads to high costs; high-precision probe stations are expensive, have high maintenance costs, and involve cumbersome and time-consuming calibration processes, resulting in extremely high overall operational complexity. This is severely out of touch with the needs of actual daily work, as routine testing tasks typically do not require extremely high precision, while existing equipment is overly complex and impractical, leading to resource waste and inefficiency. Utility Model Content

[0003] Therefore, one objective of this utility model is to provide a resistance detection tool to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0004] To achieve the above objectives, this utility model provides a resistance detection fixture, including a base, on which a plurality of copper pillars are provided. One end of the base is provided with a rotating pillar, which is rotatably connected to a rotating component. The rotating component is movably connected to a pull rod, which is parallel to the base. The end of the pull rod away from the rotating pillar is provided with a plurality of probe holes.

[0005] Furthermore, the pull rod includes a head and a tail, with one end of the head connected to one end of the tail. The head is rectangular, and the tail is elongated. Several probe holes are provided on the head.

[0006] Furthermore, the rotating component includes a bushing and a sliding groove. One end of the sliding groove is fixedly connected to the bushing. The bushing is sleeved on the rotating column and can rotate relative to the rotating column. The tail of the pull rod extends into the sliding groove and can slide along the length direction of the sliding groove.

[0007] Furthermore, the tooling also includes a first stop pin and a second stop pin. The rotating column is provided with a first limiting hole and a second limiting hole. The first stop pin is inserted into the first limiting hole, and the second stop pin is inserted into the second limiting hole. When the bushing is sleeved on the rotating column, the bushing is located between the first stop pin and the second stop pin.

[0008] Furthermore, the copper pillar includes a first copper pillar and a second copper pillar, the length of the first copper pillar is greater than the length of the second copper pillar, the base is provided with a first screw hole, one end of the first copper pillar and the second copper pillar are both provided with external threads, the other end of the first copper pillar is provided with internal threads, and one end of the first copper pillar is threadedly connected to the first screw hole.

[0009] Furthermore, there are four of each of the first and second copper pillars. One first copper pillar and one second copper pillar form a group, for a total of four groups. In one group of copper pillars, the other end of the first copper pillar is threadedly connected to one end of the second copper pillar. The four groups of copper pillars are arranged in a rectangular shape on the base.

[0010] Furthermore, a limiting block is provided at the other end of the tail of the pull rod.

[0011] Furthermore, the tooling also includes fixing screws, and the rotating part has several second screw holes on both sides that penetrate the side wall of the rotating part. The fixing screws are threadedly connected to the second screw holes to fix the pull rod.

[0012] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0013] 1. This invention achieves probe position adjustment through the arrangement of a pull rod and a rotating component. The probe hole on the pull rod can directly fix the probe, and the second screw hole on the rotating component is used to quickly lock the extension and retraction length of the pull rod. In conjunction with the rotation of the bushing, it can efficiently locate the resistance point to be tested on the PCB board, significantly shortening the manual adjustment time and improving the efficiency of the testing process.

[0014] 2. The tooling of this invention uses basic mechanical components such as a base, copper pillars, and stop pins to form a stable testing platform. The base integrates a fixing function, the copper pillars support the PCB board, and the stop pins prevent rotating parts from falling off. The overall structure does not rely on expensive precision probe stations or imported equipment, which greatly reduces manufacturing costs and maintenance difficulty, and is especially suitable for everyday resistance testing scenarios with medium accuracy requirements.

[0015] 3. The pull rod of the tooling of this invention can flexibly drive multiple sets of probes to move synchronously, adapting to different PCB layouts; the mechanical fixation ensures test stability and avoids cumbersome calibration problems, making the tooling widely applicable in electronic manufacturing, semiconductor debugging and other scenarios.

[0016] 4. The modular components (detachable tie rods and rotating parts) of this invention simplify component replacement and troubleshooting; the purely mechanical structure reduces the risk of electronic component wear and tear, and eliminates the need for complex calibration procedures. The stop design clearly limits the displacement range of the bushing, preventing equipment damage caused by operational errors and improving the long-term reliability and ease of maintenance of the tooling.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an isometric view of the resistance detection fixture according to an embodiment of the present invention;

[0020] Figure 2 This is a front view of the resistance detection fixture according to an embodiment of the present invention;

[0021] Figure 3 This is an isometric view of the rotating component and tie rod in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the pull rod according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the rotating component in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the base in an embodiment of the present utility model;

[0025] Figure 7 This is a schematic diagram of the rotating structure of an embodiment of the present invention.

[0026] The components are as follows: 1. Base; 2. Rotating column; 3. Rotating component; 4. Pull rod; 5. Probe hole; 6. Head; 7. Tail; 8. Bushing; 9. Sliding groove; 10. First limiting hole; 11. Second limiting hole; 12. First stop pin; 13. Second stop pin; 14. First copper column; 15. Second copper column; 16. First screw hole; 17. Limiting block; 18. Fixing screw; 19. Second screw hole; Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figures 1-7 As shown, this utility model provides a resistance detection fixture, including a base 1, on which a plurality of copper pillars are provided. A rotating pillar 2 is provided at one end of the base 1. A rotating component 3 is rotatably connected to the rotating pillar 2. A pull rod 4 is movably connected to the rotating component 3. The pull rod 4 is parallel to the base 1. A plurality of probe holes 5 are provided at the end of the pull rod 4 away from the rotating pillar 2.

[0030] As one implementation method, such as Figure 4 The number of probe holes 5 shown is 4, of which 2 probe holes 5 are arranged horizontally and 2 probe holes 5 are arranged vertically.

[0031] In one implementation, there are 8 probe holes 5, of which 4 probe holes 5 are arranged horizontally and 4 probe holes 5 are arranged vertically.

[0032] In other words, this utility model does not specifically limit the number of probe holes 5. Any number of probe holes 5 that can be flexibly driven by the pull rod 4 to move multiple sets of probes synchronously to adapt to different PCB layouts and thus achieve efficient positioning of the resistance point to be tested on the PCB board are within the protection scope of this utility model.

[0033] The pull rod 4 of this utility model tool can flexibly drive multiple sets of probes to move synchronously, adapting to different PCB layouts; the mechanical fixing ensures test stability and avoids cumbersome calibration problems, making the tool widely applicable in electronic manufacturing, semiconductor debugging and other scenarios.

[0034] Furthermore, such as Figure 4 As shown, the pull rod 4 includes a head 6 and a tail 7. The head 6 is connected to one end of the tail 7. The head 6 is rectangular and the tail 7 is elongated. A plurality of probe holes 5 are provided on the head 6.

[0035] Furthermore, such as Figure 5 As shown, the rotating component 3 includes a bushing 8 and a sliding groove 9. One end of the sliding groove 9 is fixedly connected to the bushing 8. The bushing 8 is sleeved on the rotating column 2 and can rotate relative to the rotating column 2. Figure 3As shown, the tail 7 of the pull rod 4 extends into the sliding groove 9 and can slide along the length direction of the sliding groove 9.

[0036] The pull rod 4 is combined with the rotating part 3. Pulling the pull rod 4 adjusts its position. The multiple probe holes 5 on the pull rod 4 are mainly used for inserting probes. The pull rod 4 moves the probes so that they find the corresponding position of the resistance for detection.

[0037] It is understandable that pulling the lever 4 causes it to move along the length of the rotating part 3, thereby adjusting the probe position in the X direction. Rotating the rotating part 3 causes the rotating part 3 and the lever 4 to rotate around the rotating column 2 as an axis, thereby adjusting the probe position in the Y direction. The probe movement allows the probe to find the corresponding position of the resistance for detection.

[0038] Furthermore, such as Figure 2 and Figure 7 As shown, the tooling also includes a first stop pin 12 and a second stop pin 13. The rotating column 2 is provided with a first limiting hole 10 and a second limiting hole 11. The first stop pin 12 is inserted into the first limiting hole 10, and the second stop pin 13 is inserted into the second limiting hole 11. When the bushing 8 is sleeved on the rotating column 2, the bushing 8 is located between the first stop pin 12 and the second stop pin 13.

[0039] The stop is used for fixing and preventing the rotating part 3 from falling or being moved too high, so that the rotating part 3 has a certain range of movement in the upper and lower positions of the rotating part.

[0040] Furthermore, the copper pillar includes a first copper pillar 14 and a second copper pillar 15. The length of the first copper pillar 14 is greater than the length of the second copper pillar 15. The base 1 is provided with a first screw hole 16. One end of the first copper pillar 14 and the second copper pillar 15 are provided with external threads, and the other end of the first copper pillar 14 is provided with internal threads. One end of the first copper pillar 14 is threadedly connected to the first screw hole 16.

[0041] Furthermore, there are four of each of the first copper pillar 14 and the second copper pillar 15. One first copper pillar 14 and one second copper pillar 15 form a group, for a total of four groups. In one group of copper pillars, the other end of the first copper pillar 14 is threadedly connected to one end of the second copper pillar 15. The four groups of copper pillars are arranged in a rectangular shape on the base 1.

[0042] Understandably, the copper pillars are used to mount and fix the circuit board (PCB), providing support and fixation. Through holes are provided at the four corners of the rectangular circuit board. The diameter of the through holes is larger than the diameter of the external thread of the second copper pillar 15 but smaller than the diameter of the first copper pillar 14. The rectangular circuit board is placed above the first copper pillar 14, with the through holes of the circuit board aligned with the first copper pillar 14. The externally threaded end of the second copper pillar 15 is inserted through the through hole of the circuit board and then rotated to connect the internally threaded end of the first copper pillar 14, thus achieving the support, mounting, and fixation of the circuit board.

[0043] Furthermore, such as Figure 4 As shown, a limiting block 17 is provided at the other end of the tail 7 of the pull rod 4.

[0044] Furthermore, the tooling also includes fixing screws 18, and the rotating part 3 has several second screw holes 19 that penetrate the side wall of the rotating part 3 on both sides. The fixing screws 18 are threadedly connected to the second screw holes 19 to fix the pull rod 4.

[0045] like Figure 4 As shown, the limiting block 17 is in the shape of a cube or cuboid. The cross-section of the limiting block 17 is slightly larger than the cross-section of the tail 7 of the pull rod 4, which allows the limiting block 17 to enter the sliding groove 9 of the rotating part 3 and slide within the sliding groove 9.

[0046] like Figure 5 As shown, there are multiple second screw holes 19, which are respectively located on both sides of the rotating part 3.

[0047] In one embodiment, there are 6 second screw holes 19, of which 3 second screw holes 19 are provided on one side of the rotating member 3 and the other 3 second screw holes 19 are provided on the other side of the rotating member 3, and the second screw holes 19 on both sides of the rotating member 3 are arranged opposite to each other.

[0048] In one embodiment, such as Figure 5 As shown, at least two second screw holes 19 are provided at the end of the rotating part 3 away from the bushing 8. The second screw holes 19 and the fixing screws 18 at the end of the rotating part 3 away from the bushing 8 serve to fix the pull rod 4 on the one hand, and on the other hand, since the cross section of the limiting block 17 is slightly larger than the cross section of the tail 7 of the pull rod 4, when the pull rod 4 is stretched and slid, the limiting block 17 will be stuck by the fixing screws 18 at the end of the rotating part 3 away from the bushing 8 before the tail 7 is completely separated from the sliding groove 9, thus preventing the pull rod 4 from completely running out of the sliding groove 9 and falling down.

[0049] The tooling of this utility model uses basic mechanical components such as a base 1, copper pillars, and stop pins to form a stable testing platform. The base 1 integrates a fixing function, the copper pillars support the PCB board, and the stop pins prevent the rotating parts 3 from falling off. The overall structure does not rely on expensive precision probe stations or imported equipment, which greatly reduces manufacturing costs and maintenance difficulty, and is especially suitable for everyday resistance testing scenarios with medium accuracy requirements.

[0050] The pull rod 4 of this utility model tool can flexibly drive multiple sets of probes to move synchronously, adapting to different PCB layouts; the mechanical fixing ensures test stability and avoids cumbersome calibration problems, making the tool widely applicable in electronic manufacturing, semiconductor debugging and other scenarios.

[0051] The modular components of this invention (detachable tie rod 4, rotating part 3) simplify component replacement and troubleshooting; the purely mechanical structure reduces the risk of electronic component wear and tear, and eliminates the need for complex calibration procedures. The stop design clearly limits the displacement range of the bushing 8, preventing equipment damage caused by operational errors and improving the long-term reliability and ease of maintenance of the tooling.

[0052] When using the tooling of this invention, the resistance parameter of the digital potentiometer is adjusted during use, and the corresponding position of the probe is adjusted and fixed to achieve the detection purpose.

[0053] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] It will be readily understood by those skilled in the art that this utility model includes any combination of the utility model content and specific embodiments described in the foregoing specification, as well as the various parts shown in the accompanying drawings. Due to space limitations and for the sake of brevity, not all of these combinations have been described in detail. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A resistance detection fixture, characterized in that, The device includes a base on which several copper pillars are mounted. One end of the base has a rotating pillar, which is rotatably connected to a rotating component. The rotating component is movably connected to a pull rod, which is parallel to the base. The end of the pull rod away from the rotating pillar has several probe holes.

2. The resistance detection fixture as described in claim 1, characterized in that, The pull rod includes a head and a tail, with one end of the head connected to one end of the tail. The head is rectangular and the tail is elongated. Several probe holes are provided on the head.

3. The resistance detection fixture as described in claim 2, characterized in that, The rotating component includes a bushing and a sliding groove. One end of the sliding groove is fixedly connected to the bushing. The bushing is sleeved on the rotating column and can rotate relative to the rotating column. The tail of the pull rod extends into the sliding groove and can slide along the length direction of the sliding groove.

4. The resistance detection fixture as described in claim 1, characterized in that, It also includes a first stop pin and a second stop pin. The rotating column is provided with a first limiting hole and a second limiting hole. The first stop pin is inserted into the first limiting hole, and the second stop pin is inserted into the second limiting hole. When the bushing is sleeved on the rotating column, the bushing is located between the first stop pin and the second stop pin.

5. The resistance detection fixture as described in claim 1, characterized in that, The copper pillar includes a first copper pillar and a second copper pillar. The length of the first copper pillar is greater than the length of the second copper pillar. The base is provided with a first screw hole. One end of both the first copper pillar and the second copper pillar is provided with external threads, and the other end of the first copper pillar is provided with internal threads. One end of the first copper pillar is threadedly connected to the first screw hole.

6. The resistance detection fixture as described in claim 5, characterized in that, There are four of each of the first and second copper pillars. One first copper pillar and one second copper pillar form a group, for a total of four groups. In a group of copper pillars, the other end of the first copper pillar is threaded to one end of the second copper pillar. The four groups of copper pillars are arranged in a rectangular shape on the base.

7. The resistance detection fixture as described in claim 2, characterized in that, A limiting block is provided at the other end of the tail of the pull rod.

8. The resistance detection fixture as described in claim 1, characterized in that, It also includes fixing screws. The rotating part has several second screw holes on both sides that penetrate the side wall of the rotating part. The fixing screws are threadedly connected to the second screw holes to fix the pull rod.

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