Open type cable electrical test fixture

Abstract

The utility model discloses an open type cable electrical test tool comprising the following structures: a tool seat provided with a plurality of jacks and hole sites corresponding to the jacks one by one; the plurality of conductive blocks are installed in the jig seat at intervals, the front ends of the conductive blocks are provided with carrying grooves in one-to-one correspondence with the jacks, the rear ends of the conductive blocks are connected with a first test line, the plurality of probes are all installed on the lifting module and in one-to-one correspondence with the hole sites, and the probes are connected with a second test line. When the lifting module drives all the probes to move downwards at the same time and penetrate through the corresponding hole sites, one probe abuts against one metal wire core, so that one metal wire core is electrically connected with the probes and the conductive block at the same time, double-contact testing is formed, the contact impedance of electrical testing is reduced, the testing precision is improved, and the testing efficiency is improved. Moreover, all metal wire cores of an open type cable can be inserted at a time, the working efficiency is improved, all metal wire cores can be tested at the same time, a conduction loop is conducted, and the misjudgment risk is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of cable electrical testing, in particular to an open cable electrical testing fixture. Background technology:

[0002] Combine Figure 9 As shown, it is a schematic diagram of an open cable electrical test, wherein the open cable 1 includes a cable body 11 and a metal wire core 12 extending from the end of the cable body 11. When performing electrical testing, the staff generally uses a handheld point test pen to test, that is, the pen tip 21 of the handheld point test pen 2 contacts the metal wire core 12 to achieve testing. This testing method has at least the following shortcomings: the handheld point test pen can only perform point test on the metal wire core 12 of the open cable 1 one by one, which is inefficient; it cannot test the conductive circuit of all metal wire cores at the same time, resulting in a high risk of misjudgment; in addition, the point test contact impedance error is large, which cannot meet the requirements of high-precision testing.

[0003] In view of this, the inventors propose the following technical solutions. Utility model content:

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an open cable electrical testing fixture.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: the open cable electrical test fixture includes: a fixture seat, a plurality of jacks for inserting the metal wire cores of the open cable are opened inward on the outer side of the fixture seat, and a hole position corresponding to and passing through the jacks is opened downward on the upper end of the fixture seat; a plurality of conductive blocks are installed in the fixture seat at intervals, and a loading groove for carrying the metal wire core and corresponding to the jacks is provided at the front end of the conductive block, a first test line connected to the rear end of the conductive block extends out of the fixture seat, and a plurality of probes are installed on the lifting module and correspond to the holes one by one. The probes are connected to the second test line. When the lifting module drives all the probes to move downward at the same time and pass through the corresponding holes, one probe presses against one metal wire core, so that the metal wire core is electrically connected to the probe and the conductive block at the same time, forming a double contact test.

[0006] Furthermore, in the above technical solution, a trumpet-shaped guide opening is provided at the front end of the jack.

[0007] Furthermore, in the above technical solution, the fixture seat includes a base and a cover plate installed on the base, the base is provided with a plurality of spaced installation grooves, and the front end of the base is provided with the jacks that are connected to the installation grooves one by one, the cover plate is provided with the holes, and the conductive blocks are installed in the installation grooves one by one, and the rear end of the conductive blocks is exposed outside the rear end surface of the base.

[0008] Furthermore, in the above technical solution, an L-shaped stepped groove is provided on the base, and the cross section of the cover is also L-shaped. The cover is embedded in the stepped groove and fixed by screws.

[0009] Furthermore, in the above technical solution, a limiting groove is formed on the upper side of the rear end of the conductive block, and a retaining bar is formed on the lower side of the rear end of the cover plate, and the retaining bar is pressed into the limiting groove.

[0010] Furthermore, in the above technical solution, a first wire hole is provided on the rear end face of the conductive block, a first through hole is provided on the upper end of the conductive block, the first test line is passed through the first wire hole, the first screw is spirally fixed in the first through hole, and presses the first test line to confine the first test line in the first wire hole.

[0011] Furthermore, in the above technical solution, an anti-slip groove is provided downwardly on the lower end surface of the carrying groove, and the rear end surface of the carrying groove serves as a contact retaining wall for contact of the end surface of the metal wire core.

[0012] Furthermore, in the above technical solution, the lifting module includes a vertical frame, an adjustment seat installed on the vertical frame in a height-adjustable manner, a cylinder fixed to the front end of the adjustment seat, and a lifting seat at the lower end of the cylinder driven by the cylinder to achieve lifting, and the probes are installed in parallel in the lifting seat and extend out of the lifting seat.

[0013] Furthermore, in the above technical solution, the probe is a spring probe, and the first test line and the second test line are both connected to an electrical test device.

[0014] Furthermore, in the above technical solution, the conductive block is a copper block; and the fixture base and the lifting module are both installed on the machine base.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: when in use, the metal wire cores of the open cable are inserted into the jacks of the fixture seat one by one, and extended to the conductive block; then, the lifting module drives all the probes to move downward at the same time and pass through the corresponding holes, and one probe is pressed against one metal wire core, so that one metal wire core is electrically connected to the probe and the conductive block at the same time, forming a double-contact test, which can reduce the contact impedance of the electrical test, improve the test accuracy, and will not cause poor contact and affect the test quality. In addition, the present invention replaces the conventional manual point-by-point testing method, and can test all the metal wire cores of the open cable at one time, thereby improving work efficiency, and can test the conductive circuit of all metal wire cores at the same time, reducing the risk of misjudgment, and ensuring test accuracy, making the present invention extremely competitive in the market. Description of the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the present invention from another perspective;

[0018] Figure 3 It is a cross-sectional view of the utility model;

[0019] Figure 4 This is an assembly diagram of the probe and lifting module in the utility model;

[0020] Figure 5 It is a three-dimensional diagram of the fixture seat in the utility model;

[0021] Figure 6 This is a three-dimensional diagram of the fixture base in the present invention from another perspective;

[0022] Figure 7 This is a three-dimensional exploded view of the fixture seat in the utility model;

[0023] Figure 8 This is a three-dimensional exploded view of the fixture base in the present invention from another perspective;

[0024] Figure 9 The diagram is a schematic diagram of an open cable electrical test in the prior art. Specific implementation method:

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0026] See Figure 1-8 As shown, an open cable electrical test fixture includes: a fixture base 3, a plurality of conductive blocks 4, a plurality of probes 5 and a lifting module 6, wherein the number of conductive blocks 4 and probes 5 corresponds one to one.

[0027] The jig seat 3 has a plurality of sockets 301 for inserting the metal wire cores 12 of the open cable 1, and a hole 302 is formed downwardly on the upper end of the jig seat 3, which corresponds to and passes through the sockets 301. A plurality of conductive blocks 4 are installed in the jig seat 3 at intervals, and a loading slot 41 is provided at the front end of the conductive block 4 to support the metal wire cores 12 and corresponds to the sockets 301. A first test line connected to the rear end of the conductive block 4 extends out of the jig seat 3. A plurality of probes 5 are installed on the lifting module 6 and correspond to the holes 302. The probes 5 are connected to a second test line. When the lifting module 6 drives all the probes 5 to move downward at the same time and pass through the corresponding holes 302, one probe 5 presses against one metal wire core 12, so that one metal wire core 12 is electrically connected to the probe 5 and the conductive block 4 at the same time, forming a double contact test. The first test line and the second test line are both connected to the electrical test equipment. When the present invention is in use, the metal wire cores 12 of the open cable 1 are inserted one by one into the jacks 301 of the fixture holder 3 and extended to the conductive block 4; then, the lifting module 6 drives all the probes 5 to move downward at the same time and pass through the corresponding holes 302, and one probe 5 is pressed against one metal wire core 12, so that one metal wire core 12 is electrically connected to the probe 5 and the conductive block 4 at the same time, forming a double-contact test, which can reduce the contact impedance of the electrical test, improve the test accuracy, and will not cause poor contact and affect the test quality. In addition, the present invention replaces the conventional manual point-by-point testing method, and can perform a one-time insertion test on all the metal wire cores 12 of the open cable 1, thereby improving work efficiency, and can simultaneously test the conductive circuit of all metal wire cores, thereby reducing the risk of misjudgment and ensuring test accuracy, making the present invention extremely competitive in the market.

[0028] The front end of the jack 301 is provided with a trumpet-shaped guide opening 303, which plays a good guiding role, allowing the metal wire core to be conveniently inserted in one go, and the operation is extremely smooth, which can also improve work efficiency and serve as an electrical barrier.

[0029] The fixture base 3 includes a base 31 and a cover 32 mounted on the base 31. The base 31 is provided with a plurality of spaced mounting slots 311, and the front end of the base 31 is provided with the aforementioned jacks 301 that are in one-to-one correspondence with the mounting slots 311. The cover 32 is provided with the aforementioned holes 302. The conductive blocks 4 are mounted one-to-one in the mounting slots 311. The assembly structure is simple and stable, and the rear ends of the conductive blocks 4 are exposed outside the rear end surface of the base 31. The base 31 is provided with an L-shaped stepped slot 312, and the cross-section of the cover 32 is also L-shaped. The cover 32 is embedded in the stepped slot 312, pre-positioned, and secured with screws, making assembly easier and more stable.

[0030] In order to enable the conductive block 4 to be installed more stably in the jig seat 3, the following design is also made: a limiting groove 42 is formed on the upper side of the rear end of the conductive block 4, and a blocking bar 321 is formed on the lower side of the rear end of the cover plate 32. The blocking bar 321 is pressed into the limiting groove 42, thereby preventing the conductive block 4 from retreating, and further ensuring that the conductive block 4 can be installed more stably in the jig seat 3.

[0031] A first wire hole 43 is provided on the rear end face of the conductive block 4, and a first through hole 44 is provided on the upper end of the conductive block 4. The first test line is passed through the first wire hole 43. The first screw is screwed into the first through hole 44 and presses the first test line to confine the first test line in the first wire hole 43, thereby ensuring that the first test line is stably installed at the rear end of the conductive block 4.

[0032] The lower end surface of the loading groove 41 is downwardly defined with an anti-slip groove 411. The rear end surface of the loading groove 41 serves as a contact retaining wall 412 for the end face of the metal wire core 12 to contact. The anti-slip groove 411 is used to contact the metal wire core, thereby preventing the metal wire core from spinning or slipping, ensuring that the metal wire core can be stably positioned between the conductive block 4 and the probe, thereby ensuring conductive performance. The contact retaining wall 412 is used for contact with the end face of the metal wire core 12, increasing the contact area and improving conductive performance.

[0033] The lifting module 6 includes a stand 61, an adjustable seat 62 mounted on the stand 61 in a height-adjustable manner, a cylinder 63 fixed to the front end of the adjustable seat 62, and a lifting seat 64 at the lower end of the cylinder 63 and driven by the cylinder 63 to achieve lifting. The probes 5 are installed in parallel in the lifting seats 64 and extend outside the lifting seats 64. The lifting module 6 has a simple structure and low manufacturing cost.

[0034] Among them, a dovetail groove 611 is provided at the front end of the stand 61, and a dovetail protrusion 621 is provided at the rear end of the adjustment seat 62. The dovetail protrusion 621 is embedded in the dovetail groove 611, and the stand 61 is provided with a vertical strip groove. Correspondingly, the adjustment seat 62 is provided with a screw hole. The third screw passes through the strip groove and is screwed to the screw hole to ensure the stability of the assembly structure. When it is necessary to adjust the up and down position, loosen the third screw, slide the third screw relative to the strip groove, and after adjusting to the predetermined position, tighten the third screw again, so that the adjustment seat 62 can be stably installed on the front end of the stand 61 again.

[0035] The probe 5 is a spring probe, which has an electrical buffering effect and forms elastic contact with the metal wire core 12, thereby improving the conducting effect.

[0036] The conductive block 4 is a copper block with excellent conductive performance; the fixture base 3 and the lifting module 6 are both installed on the machine base 7.

[0037] To sum up, when the present invention is in use, the metal wire cores 12 of the open cable 1 are inserted one by one into the jacks 301 of the fixture holder 3 and extended to the conductive block 4; then, the lifting module 6 drives all the probes 5 to move downward at the same time and pass through the corresponding holes 302, and one probe 5 is pressed against one metal wire core 12, so that one metal wire core 12 is electrically connected to the probe 5 and the conductive block 4 at the same time, forming a double-contact test, which can reduce the contact impedance of the electrical test, improve the test accuracy, and will not cause poor contact and affect the test quality. In addition, the present invention replaces the conventional manual point-by-point testing method, and can perform a one-time insertion test on all the metal wire cores 12 of the open cable 1, thereby improving work efficiency, and can simultaneously test the conductive circuit of all metal wire cores, reduce the risk of misjudgment, and ensure test accuracy, making the present invention extremely competitive in the market.

[0038] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made based on the structure, features and principles described in the scope of the patent application of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. An open cable electrical test fixture, characterized by: It includes: A fixture seat (3) is provided with a plurality of jacks (301) on the outer side thereof for inserting the metal wire cores (12) of the open cable (1), and a hole (302) is provided downwardly on the upper end of the fixture seat (3) that corresponds to and passes through the jacks (301); A plurality of conductive blocks (4) are installed at intervals in the fixture seat (3), and a front end of each conductive block (4) is provided with a loading slot (41) that carries a metal wire core (12) and corresponds one-to-one with the jack (301). A first test line connected to the rear end of each conductive block (4) extends out of the fixture seat (3). A plurality of probes (5) are mounted on a lifting module (6) and correspond one-to-one to the hole positions (302). The probes (5) are connected to a second test line. When the lifting module (6) drives all the probes (5) to move downward at the same time and pass through the corresponding hole positions (302), one probe (5) presses against a metal wire core (12), so that the metal wire core (12) is electrically connected to the probe (5) and the conductive block (4) at the same time, thereby forming a double-contact test.

2. The open cable electrical test fixture according to claim 1, characterized in that: A trumpet-shaped guide opening (303) is provided at the front end of the insertion hole (301).

3. The open cable electrical test fixture according to claim 1, characterized in that: The fixture seat (3) includes a base (31) and a cover plate (32) mounted on the base (31); the base (31) is provided with a plurality of spaced mounting grooves (311); the front end of the base (31) is provided with the jacks (301) that are in one-to-one correspondence with the mounting grooves (311); the cover plate (32) is provided with the holes (302); the conductive blocks (4) are mounted in one-to-one correspondence in the mounting grooves (311); and the rear ends of the conductive blocks (4) are exposed outside the rear end surface of the base (31).

4. The open cable electrical test fixture according to claim 3, characterized in that: An L-shaped stepped groove (312) is provided on the base (31), and the cross section of the cover plate (32) is also L-shaped. The cover plate (32) is embedded in the stepped groove (312) and is fixed by screws.

5. The open cable electrical test fixture according to claim 3, characterized in that: A limiting groove (42) is formed on the upper side of the rear end of the conductive block (4), and a retaining bar (321) is formed on the lower side of the rear end of the cover plate (32), and the retaining bar (321) is pressed into the limiting groove (42).

6. An open cable electrical test fixture according to any one of claims 1 to 5, characterized in that: The rear end surface of the conductive block (4) is provided with a first wire hole (43), the upper end of the conductive block (4) is provided with a first through hole (44), the first test line is passed through the first wire hole (43), the first screw is screwed into the first through hole (44), and presses the first test line to confine the first test line in the first wire hole (43).

7. The open cable electrical test fixture according to claim 6, characterized in that: The lower end surface of the carrying groove (41) is provided with an anti-slip groove (411) downward, and the rear end surface of the carrying groove (41) serves as a contact retaining wall (412) for contacting the end surface of the metal wire core (12).

8. An open cable electrical test fixture according to any one of claims 1 to 5, characterized in that: The lifting module (6) comprises a stand (61), an adjustment seat (62) mounted on the stand (61) in a height-adjustable manner, a cylinder (63) fixed to the front end of the adjustment seat (62), and a lifting seat (64) at the lower end of the cylinder (63) and driven by the cylinder (63) to achieve lifting. The probes (5) are mounted in parallel in the lifting seat (64) and extend out of the lifting seat (64).

9. An open cable electrical test fixture according to any one of claims 1 to 5, characterized in that: The probe (5) is a spring probe; the first test line and the second test line are both connected to electrical testing equipment.

10. An open cable electrical test fixture according to any one of claims 1 to 5, characterized in that: The conductive block (4) is a copper block; the fixture base (3) and the lifting module (6) are both installed on the machine base (7).

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