Low resistance measuring tool

Abstract

The utility model discloses a low resistance measuring tool, which comprises a fixed base used for fixing a sample to be tested, a top contact assembly and at least two side contact assemblies, and is characterized in that the top contact assembly comprises a top driving mechanism and a top detection contact element connected to the power output end of the top driving mechanism; the side contact assembly comprises a side driving mechanism and a side detection contact piece connected to the power output end of the side driving mechanism. When low resistance measurement is carried out on a to-be-tested sample, the top driving mechanism drives the top detection contact piece to be in contact with a part of a conductor of the to-be-tested sample, and the side driving mechanism drives the side detection contact piece to be in contact with the other part of the conductor of the to-be-tested sample. Therefore, the low-resistance measuring instrument can perform low-resistance measurement on a plurality of conductor parts in the to-be-tested sample at the same time, and compared with a traditional low-resistance measuring tool, the low-resistance measuring instrument has the advantages that the measuring efficiency is remarkably improved, and the modern production and processing requirements can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of resistance measurement and relates to a low resistance testing device, in particular to a low resistance measuring tool capable of measuring the resistance values ​​of multiple conductor parts at the same time. Background Art

[0002] Resistance measurement is a basic electrical measurement method. It can be divided into low resistance, medium resistance, and high resistance measurement according to the resistance value. Low resistance measurement is usually used to test the quality of products such as conductive circuits and printed circuit boards. The low resistance measurement value is a key factor in measuring the conductivity quality of these products.

[0003] In order to facilitate the low-resistance testing of conductive products, the industry has developed a variety of fixtures for clamping and fixing samples. For example, patent CN201716329U discloses a sample holder for measuring the resistivity of metal samples, which clamps the two ends of the sample to be tested on the sample clamping knife, and fixes the sample to be tested by pushing the insulating gasket through the compression bolt. When measuring the resistivity of the sample to be tested, the two sample clamping knives can be connected to the measuring device through two leads. However, the above-mentioned test fixture has the following technical problems: the above-mentioned test fixture can only test the resistivity through the two ends of the sample, so that the low-resistance test device can only measure one group of conductors at a time, the test efficiency is low, and it is difficult to meet the requirements of modern production and processing.

[0004] In view of this, it is necessary to further improve the low resistance measurement tooling in the prior art. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is that the traditional low resistance test tool has low processing efficiency and can only measure one group of conductors at a time, so a low resistance measurement tool with high measurement efficiency is proposed.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] The utility model provides a low resistance measurement tool, which includes:

[0008] A fixed base having a receiving position for receiving a sample to be tested;

[0009] A top contact assembly comprises a top drive mechanism and a top detection contact connected to a power output end of the top drive mechanism;

[0010] At least two side contact assemblies, each of which comprises a side driving mechanism and a side detection contact piece connected to a power output end of the side driving mechanism.

[0011] As preferred, at least two detection leads are further included, one end of each of the detection leads is connected to the sample to be tested, and the other end is in contact with the top detection contact.

[0012] As preferred, a lead fixing mechanism is further included, the lead fixing mechanism is arranged on one side of the fixing base, and the top detection contact is arranged above the lead fixing mechanism; the lead fixing mechanism has a lead accommodating portion for accommodating the detection leads.

[0013] As preferred, the side contact assembly includes a first side contact assembly, a second side contact assembly and a third side contact assembly arranged at intervals.

[0014] As preferred, the first side contact assembly includes a first side driving mechanism, a first side detection contact connected to the power output end of the first side driving mechanism through a first adapter; the second side contact assembly includes a second side driving mechanism, a second side detection contact connected to the power output end of the second side driving mechanism through a second adapter; the third side contact assembly includes a third side driving mechanism, a third side detection contact connected to the power output end of the third side driving mechanism through a third adapter; the first side detection contact, the second side detection contact and the third side detection contact are used for contacting the pins of the sample to be tested.

[0015] As preferred, the first side driving mechanism is connected to a first support, the second side driving mechanism is connected to a second support, and the third side driving mechanism is connected to a third support.

[0016] As preferred, the detection leads are three, and the three detection leads are arranged at intervals in sequence; the lead accommodating portion is provided with a fixing column, and the detection leads are provided with connecting holes matched with the fixing column.

[0017] As preferred, a mounting bottom plate is further included, and the fixing base, the lead fixing mechanism, the first support, the second support and the third support are fixedly connected to the mounting bottom plate.

[0018] As preferred, at least two mounting side plates are connected to the edges of the mounting bottom plate, and a mounting top plate is connected to the ends of the mounting side plates away from the mounting bottom plate; a fourth support is connected to the mounting top plate, and the top driving mechanism is connected to the mounting top plate through the fourth support.

[0019] As preferred, a control switch is further included, and the control switch is connected to the mounting bottom plate and is in circuit connection with the top driving mechanism and the side driving mechanism.

[0020] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0021] The low-resistance measuring tool provided by the utility model has the following advantages. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments of the utility model and in combination with the drawings, wherein

[0023] Fig. 1 is a structural schematic view of the low-resistance measuring tool provided by the utility model embodiment;

[0024] Fig. 2 is a structural schematic view of the low-resistance measuring tool provided by the utility model embodiment;

[0025] Fig. 3 is another angle view of the internal structure of the low-resistance measuring tool provided by the utility model embodiment;

[0026] Fig. 4 is a structural schematic view of the wire fixing mechanism in the low-resistance measuring tool provided by the utility model embodiment;

[0027] Fig. 5 is a structural schematic view of the fixing base in the low-resistance measuring tool provided by the utility model embodiment;

[0028] Fig. 6 is a structural schematic view of the sample to be tested and the detection wire.

[0029] The reference signs in the figure are as follows: 1-fixed base; 101-receiving position; 2-sample to be tested; 201-pin; 3-top contact assembly; 301-top driving mechanism; 302-top detection contact; 303-fourth adapter; 4-side contact assembly; 401-first side driving mechanism; 402-first adapter; 403-first side detection contact; 404-second side driving mechanism; 405-second adapter; 406-second side detection contact; 407-third side driving mechanism; 408-third adapter; 409-third side detection contact; 5-detection lead; 501-connection hole; 6-lead fixing mechanism; 601-lead receiving part; 602-fixing column; 7-first support; 8-second support; 9-third support; 10-mounting bottom plate; 11-mounting side plate; 12-mounting top plate; 13-fourth support; 14-control switch. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.

[0032] The "first", "second", etc. of the present application are only used to distinguish in the description and do not have special meanings.

[0033] EMBODIMENT

[0034] The present embodiment provides a low resistance measurement tool, please refer to Figs. 1-6The low-resistance measuring tool comprises a fixed base 1 used for fixing a sample 2 to be tested, which has a containing position 101 used for containing and fixing the sample 2 to be tested. In the embodiment, the sample 2 to be tested is an enameled wire. Of course, the low-resistance measuring tool provided in the embodiment can also be used for assisting in measuring the resistance value of other conductive products, such as copper bars and the like. One side of the fixed base 1 is provided with a top contact assembly 3, which specifically comprises a top driving mechanism 301 and a top detection contact 302 connected to the power output end of the top driving mechanism 301. The top driving mechanism 301 can drive the top detection contact 302 to reciprocate along the vertical direction to contact or move away from the conductive part of the sample 2 to be tested. At least two side contact assemblies 4 are arranged on the fixed base 1, each of which comprises a side driving mechanism and a side detection contact connected to the power output end of the side driving mechanism. The side driving mechanism can drive the side detection contact to reciprocate along the horizontal direction to contact or move away from the conductive part of the sample 2 to be tested.

[0035] The low-resistance measuring tool provided in the embodiment can drive the top detection contact 302 to contact a part of the conductor of the sample 2 to be tested through the top driving mechanism 301 and drive the side detection contact to contact another part of the conductor of the sample to be tested through the side driving mechanism when measuring the low resistance of the sample 2 to be tested, so that the low-resistance measuring instrument can simultaneously measure the low resistance of multiple conductor parts in the sample to be tested. Compared with the traditional low-resistance measuring tool which can only measure the low resistance of one group of conductors at a time, the measuring efficiency is significantly improved, and the modern production and processing demand can be met.

[0036] In the embodiment, the top driving mechanism 301 and the side driving mechanism are both air cylinders, and the top detection contact 302 and the side detection contact are both contact probes.

[0037] In the embodiment, the top contact assembly 3 is used for connecting the position close to the end of the sample 2 to be tested, so as to measure the resistance between the two ends of the sample 2 to be tested. In order to facilitate the connection between the top detection contact 302 and the two ends of the sample 2 to be tested, the low-resistance measuring tool further comprises at least two detection wires 5, one end of each detection wire 5 is connected to the sample 2 to be tested, and the other end extends to the top contact assembly 3. The top detection contact 302 can contact the detection wire 5 under the driving of the top driving mechanism 301, and then realize conduction with the sample 2 to be tested through the detection wire 5.

[0038] In order to fix the detection lead wire 5 and prevent the detection lead wire 5 from being deviated during measurement and the top detection contact 302 from being unable to touch the detection lead wire 5, the test tool provided in the embodiment further comprises a lead wire fixing mechanism 6 which is arranged on one side of the fixed base 1 and has a lead wire accommodating part 601 for accommodating and fixing the detection lead wire 5. The detection lead wire 5 can be accommodated in the lead wire accommodating part 601, and the detection lead wire 5 is fixed by the lead wire fixing mechanism 6. Figs. 1-2 As can be seen, the lead wire accommodating part 601 is higher than the fixed base 1. In order to prevent the detection lead wire 5 from sliding off, a fixing column 602 is further arranged in the lead wire accommodating part 601. The fixing column 602 is made of metal, and the detection lead wire 5 is provided with a connecting hole 501 which is adapted to the fixing column 602. The detection lead wire 5 is adapted to be sleeved outside the fixing column 602 through the connecting hole 501, so as to fix the detection lead wire 5. In the embodiment, there are three detection lead wires 5 which are sequentially and interval arranged. Two of the three detection lead wires 5 are connected to the position close to the end of the sample 2 to be tested, and one is connected to the middle of the sample 2 to be tested. The three detection lead wires 5 are connected to the sample 2 to be tested at one end and extend into the lead wire accommodating part 601 and are sleeved on the fixing column 602 at the other end. The top contact assembly 3 is arranged above the lead wire fixing mechanism 6, and the top driving mechanism 301 drives the top detection contact 302 to approach or move away from the detection lead wire 5. When detection is needed, the top detection contact 302 touches the detection lead wire 5. Corresponding to the three detection lead wires 5, the top detection contact 302 comprises three groups of contact probes, and each group of contact probes comprises two contact probes.

[0039] In order to realize the resistance detection of the conductors at different positions of the sample 2 to be tested, in the embodiment, the side contact assembly 4 comprises a first side detection assembly, a second side contact assembly and a third side contact assembly which are arranged at intervals. The first side contact assembly and the second side contact assembly are arranged on the left and right sides of the top contact assembly 3 respectively, and the third side contact assembly is arranged on the opposite side of the top contact assembly 3. The fixed base 1 is located between the third side contact assembly and the top contact assembly.

[0040] Specifically, as shown in Figs. 2-3As shown, the first side contact assembly includes a first side driving mechanism 401, a first side detection contact 403 connected to the power output end of the first side driving mechanism 401 through a first adapter 402, and the first side detection contact 403 is two contact probes connected to the first adapter 402 at intervals. The second side contact assembly includes a second side driving mechanism 404, a second side detection contact 406 connected to the power output end of the second side driving mechanism 404 through a second adapter 405, and the second side detection driving piece 406 is two contact probes connected to the second adapter 405 at intervals. The third side contact assembly includes a third side driving mechanism 407, a third side detection contact 409 connected to the power output end of the third side driving mechanism 407 through a third adapter 408, and the third side detection driving piece 409 is two contact probes connected to the third adapter 408 at intervals. In this embodiment, the first side contact assembly, the second side contact assembly, and the third side contact assembly are used to detect the resistance value of the pin 201 of the sample 2 to be tested, and the pin 201 is protruded outside the accommodation position 101 to facilitate contact with each side detection contact.

[0041] In order to realize the structural stability of the test tool and improve its service life, the first side driving mechanism 401 is connected to the first support 7, the top of the first support 7 has a containing groove, and the first side driving mechanism 401 is adapted to be erected in the containing groove. Similarly, the second side driving mechanism 404 is connected to the second support 8, and the third side driving mechanism 407 is connected to the third support 9. The above-mentioned supports can provide stable support for the side driving mechanism, so that the side detection contact is driven smoothly and reciprocally.

[0042] In order to realize the structural stability of the test tool and improve its service life, the first side driving mechanism 401 is connected to the first support 7, the top of the first support 7 has a containing groove, and the first side driving mechanism 401 is adapted to be erected in the containing groove. Similarly, the second side driving mechanism 404 is connected to the second support 8, and the third side driving mechanism 407 is connected to the third support 9. The above-mentioned supports can provide stable support for the side driving mechanism, so that the side detection contact is driven smoothly and reciprocally.

[0043] The installation base plate 10 is also connected with a control switch 14, the control switch is circuit connected with the top driving mechanism 301, the first side driving mechanism 401, the second side driving mechanism 404 third side driving mechanism 407, so as to realize the control to each driving mechanism, in addition, the top detection contact 302, the first side detection contact 403, the second side detection contact 406, the third side detection contact 408 are also circuit connected with the low resistance tester of outside, each detection contact is touched and is different from the position of the sample 2 to be tested, and the efficient measurement of the resistance value of the conductor at different positions of the sample 2 is realized through the low resistance tester.

[0044] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and can not be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A low resistance measurement fixture, characterized by, The utility model relates to a test fixture, comprising: a fixed base having a receiving site for receiving a sample to be tested; a top contact assembly including a top drive mechanism, a top detection contact connected to a power output end of the top drive mechanism; at least two side contact assemblies including a side drive mechanism, a side detection contact connected to a power output end of the side drive mechanism.

2. The low resistance measurement fixture of claim 1, wherein, Further comprising at least two detection leads, one end of each of the detection leads being connected to the sample to be tested, and the other end being capable of contacting the top detection contact.

3. The low resistance measurement fixture of claim 2, wherein, Further comprising a lead fixing mechanism arranged on one side of the fixed base, the top detection contact being arranged above the lead fixing mechanism; the lead fixing mechanism having a lead receiving part for receiving the detection leads.

4. The low resistance measurement fixture of claim 3, wherein, The side contact assemblies include a first side contact assembly, a second side contact assembly and a third side contact assembly arranged at intervals.

5. The low resistance measurement fixture of claim 4, wherein, The first side contact assembly includes a first side drive mechanism, a first side detection contact connected to a power output end of the first side drive mechanism through a first adapter; the second side contact assembly includes a second side drive mechanism, a second side detection contact connected to a power output end of the second side drive mechanism through a second adapter; the third side contact assembly includes a third side drive mechanism, a third side detection contact connected to a power output end of the third side drive mechanism through a third adapter; the first side detection contact, the second side detection contact and the third side detection contact are all used for contacting the pins of the sample to be tested.

6. The low resistance measurement fixture of claim 5, wherein, The first side drive mechanism is connected to a first support, the second side drive mechanism is connected to a second support, and the third side drive mechanism is connected to a third support.

7. The low resistance measurement fixture of claim 3, wherein, The detection leads are three, and the three detection leads are arranged at intervals in sequence; the lead receiving part is provided with a fixing column, and the detection leads are provided with connecting holes matched with the fixing column.

8. The low resistance measurement fixture of claim 6, wherein, Further comprising a mounting bottom plate, the fixed base, the lead fixing mechanism, the first support, the second support and the third support being fixedly connected to the mounting bottom plate.

9. The low resistance measurement fixture of claim 8, wherein, The mounting bottom plate is connected with at least two mounting side plates, one end of the mounting side plate away from the mounting bottom plate being connected with a mounting top plate; the mounting top plate is connected with a fourth support, and the top drive mechanism is connected to the mounting top plate through the fourth support.

10. The low resistance measurement fixture of claim 9, wherein, Further comprising a control switch connected to the mounting bottom plate, and the control switch is electrically connected with the top drive mechanism and the side drive mechanism.

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