Automatic direct-current resistance testing device

Abstract

The utility model discloses an automatic direct current resistance testing device, which comprises a device machine table, an electric lifting and leveling mechanism and a testing assembly, and is characterized in that the electric lifting and leveling mechanism consists of an electric telescopic cylinder, a movable sliding table and a sliding column and can adjust the height and the inclination angle of the testing assembly so as to meet the on-line measurement requirement of a production line; the test assembly comprises electric wire clamping modules, electric tensioning modules, a test box and a tester, a test cavity is formed in the test box, the two ends of the test box are each provided with one electric wire clamping module, the electric wire clamping modules are matched with the electric tensioning modules, the electric wire clamping modules are used for clamping and stabilizing cables, and the electric tensioning modules are used for clamping and stabilizing the cables. The electric tensioning module controls tensioning of a cable through a motor, accurate measurement is ensured, and all the motors and heating components are automatically controlled through a PLC.

Description

Technical Field

[0001] This utility model relates to the technical field of resistance testing devices, specifically an automated DC resistance testing device. Background Technology

[0002] As a key component of power transmission, the resistance value of cables directly affects the efficiency and safety of power transmission. Excessive resistance can lead to energy loss, overheating, and even safety accidents. Therefore, during the production and inspection of cables, it is essential to accurately test the resistance value of the cables to ensure that they meet the standard requirements.

[0003] Application No. 202411014893.5 discloses an online DC resistance testing device for cables, used to perform resistance testing on cables; however, the above device has the following drawbacks:

[0004] When using the above-mentioned device for testing, it is necessary to manually rotate the lifting handwheel to adjust the upper test chamber, and also manually rotate the tension handwheel to clamp both ends of the cable. Furthermore, it is necessary to manually rotate the tightening handwheel to tighten the cable. Thus, a large amount of manual operation is required when performing resistance testing, which reduces the testing efficiency. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a resistance testing device that reduces manual operation and speeds up testing efficiency.

[0006] The technical solution adopted by this utility model to achieve the above-mentioned objective is: an automated DC resistance testing device, including a device base, an electric lifting and leveling mechanism, and a testing assembly. The device base is provided with the electric lifting and leveling mechanism, which includes an electric telescopic cylinder, a mounting base, a sliding column, and a moving slide. Two sets of electric telescopic cylinders are fixedly connected to the device base. The piston end of each set of electric telescopic cylinders is rotatably connected to the moving slide. The mounting base is fixedly connected to the sliding column corresponding to each set of moving slides, and the moving slide is slidably connected to the corresponding sliding column.

[0007] The test assembly is mounted on the mounting base.

[0008] In the above technical solution, the test assembly includes an electric wire clamping module, an electric tensioning module, a test box, and a tester. The test box is fixedly connected to the mounting base. The test box has a test cavity, an elastic sealing platform, multiple thermocouples, and multiple resistance test contacts. A heating component is fixedly connected inside the test box.

[0009] The mounting base is provided with a set of electric wire clamping modules at both ends of the test box. Each electric wire clamping module includes a contact clamp. The mounting base is provided with an electric tensioning module in conjunction with the set of electric wire clamping modules.

[0010] The tester is fixedly connected to the machine base of the device, and the tester is connected to the contact clamp and the resistance test contact.

[0011] In the above technical solution, the electric wire clamping module further includes a module box, a clamping motion table, a first lead screw, a second lead screw, and a first motor. A guide column is fixedly connected inside the module box, and two sets of clamping motion tables are slidably connected to the guide column. The first lead screw is threadedly connected to one set of clamping motion tables, and the second lead screw is threadedly connected to the other set of clamping motion tables. The first lead screw and the second lead screw are poweredly connected. The first motor is fixedly connected to the module box, and the first motor is poweredly connected to the first lead screw or the second lead screw.

[0012] The module box is provided with a motion slot to match the clamping motion table. A set of motion mounting seats is slidably connected to each set of clamping motion tables on the motion slot. The motion mounting seats are fixedly connected to the corresponding clamping motion table.

[0013] The contact clamp includes two sets of clamping platforms, which are respectively fixedly connected to two sets of motion mounting bases.

[0014] In the above technical solution, the electric tensioning module includes a module base, a guide rail, a third lead screw, and a second motor. The module base is fixedly connected to one end of the test box on the mounting base. The guide rail is fixedly connected to the module base. A motion seat is slidably connected to the guide rail. The third lead screw is threadedly connected to the motion seat. The second motor is fixedly connected to the mounting base and is powered by the third lead screw. A set of electric wire clamping modules is fixedly connected to the motion seat.

[0015] In the above technical solution, the test box includes a lower box and an upper box. The lower box is fixedly connected to the mounting base. The upper box is hinged to one side of the lower box. Both the lower box and the upper box are provided with arc-shaped cavities. The two sets of arc-shaped cavities constitute the test chamber. The lower box and the upper box are connected by a locking mechanism.

[0016] In the above technical solution, the elastic sealing platform group is provided in two groups, and the two groups of elastic sealing platform groups are respectively close to the two ends of the test chamber. Each group of elastic sealing platform groups includes an upper elastic compression platform fixedly connected to the upper box and a lower elastic compression platform fixedly connected to the lower box.

[0017] In the above technical solution, the heating component is a graphene heater.

[0018] In the above technical solution, a PLC controller and a motor controller are fixedly connected inside the device. The electric telescopic cylinder, the first motor, and the second motor are connected to the motor controller. The motor controller, the heating component, the thermocouple, and the tester are connected to the PLC controller.

[0019] The beneficial effects of this utility model are as follows: the extension and retraction of the electric telescopic cylinder provides power to adjust the tilt angle of the test assembly on the mounting base, thereby meeting the online measurement needs of the production line. Furthermore, combined with the electric wire clamping module and the electric tensioning module, the test cable can be automatically clamped and tensioned. Such a device can reduce manual operation and speed up the testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0022] Figure 3 This is a schematic diagram of the test box after it is opened in this utility model;

[0023] Figure 4 for Figure 2 Detailed structural diagram of part a;

[0024] Figure 5 This is a schematic diagram of the structure of the electric tensioning module in this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the electric wire clamping module in this utility model.

[0026] In the diagram: 100 Device platform, 200 Electric lifting and leveling mechanism, 201 Electric telescopic cylinder, 202 Mounting base, 203 Sliding column, 204 Motion slide, 300 Test assembly, 301 Electric wire clamping module, 302 Electric tensioning module, 303 Test box, 304 Tester, 305 Lower box, 306 Upper box, 307 Arc cavity, 308 Lock, 309 Elastic sealing platform assembly, 310 Upper elastic compression platform, 311 Lower elastic compression platform, 312 Resistance test contact, 313 Contact clamp, 314 Module box, 315 Clamping motion platform, 316 First lead screw, 317 Second lead screw, 318 First motor, 319 Guide column, 320 Motion mounting base, 321 Clamping clamping platform, 322 Module base, 323 Guide rail, 324 Third lead screw, 325 Second motor, 326 Motion seat. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 —6. An automated DC resistance testing device, comprising a device base 100, an electric lifting and leveling mechanism 200, and a testing assembly 300. Firstly, the device base 100 is equipped with the electric lifting and leveling mechanism 200, which includes an electric telescopic cylinder 201, a mounting base 202, a sliding column 203, and a moving slide 204. Specifically, two sets of electric telescopic cylinders 201 are fixedly connected to the device base 100, and the piston end of each set of electric telescopic cylinders 201 is rotatably connected to the moving slide 204. Each set of moving slides 204 on the mounting base 202 is fixedly connected to a sliding column 203. The moving slides 204 are slidably connected to the corresponding sliding column 203. The mounting base 202 is equipped with a test assembly 300. By controlling the extension and retraction of the electric telescopic cylinder 201, the test assembly 300 can be raised and lowered, thereby adjusting the test height. The tilt angle of the upper test assembly 300 can also be adjusted by controlling the extension and retraction of the two sets of electric telescopic cylinders 201 to meet the online measurement requirements of the production line.

[0029] Furthermore, in the embodiment, the test assembly 300 includes an electric wire clamping module 301, an electric tensioning module 302, a test box 303, and a tester 304. That is, the test box 303 is fixedly connected to the mounting base 202. The test box 303 includes a lower box 305 and an upper box 306. The lower box 305 is fixedly connected to the mounting base 202. The upper box 306 is hinged to one side of the lower box 305. Both the lower box 305 and the upper box 306 are provided with arc-shaped cavities 307. The two sets of arc-shaped cavities 307 constitute the test cavity. The lower box 305 and the upper box 306 are connected by a latch 308.

[0030] Furthermore, the test chamber 303 is equipped with two sets of elastic sealing platform assemblies 309. The two sets of elastic sealing platform assemblies 309 are located near the two ends of the test chamber. Each set of elastic sealing platform assemblies includes an upper elastic compression platform 310 fixedly connected to the upper chamber 306 and a lower elastic compression platform 311 fixedly connected to the lower chamber 305. In this way, when the cable passes through the test chamber, after the upper chamber 306 is fastened to the lower chamber 305, the cable can be clamped by the upper elastic compression platform 310 and the lower elastic compression platform 311. At this time, the cable part between the two sets of elastic sealing platform assemblies 309 is in a relatively sealed state.

[0031] Furthermore, the test chamber is equipped with multiple sets of thermocouples located between two sets of elastic sealing platforms 309 for measuring the temperature inside the test chamber. The test chamber also contains multiple sets of resistance test contacts 312. After the upper housing 306 is fastened to the lower housing 305, the resistance test contacts 312 contact the cable to measure the resistance of different parts of the cable, obtaining more comprehensive resistance data and ensuring that the measurement results represent the overall resistance characteristics of the cable. The measurement data from multiple contacts can be processed through averaging and filtering to reduce the impact of random errors and accidental factors on the measurement results, obtaining more accurate resistance values. Inside the test box 303, a heating element is fixedly connected. This heating element uses a graphene heater, making heating faster and more uniform. The heating element heats the test chamber, ensuring the cable reaches the required test temperature.

[0032] In addition, a set of electric wire clamping modules 301 are provided at both ends of the test box 303 on the mounting base 202. The electric wire clamping module 301 includes a contact clamp 313, which is used to clamp the two ends of the cable to ensure the stability of the cable and to ensure that the current can flow smoothly through the cable during the test, thereby ensuring the accuracy of the resistance measurement.

[0033] The mounting base 202 is equipped with an electric tensioning module 302 in conjunction with a set of electric wire clamping modules 301. That is, the electric tensioning module 302 can drive a set of electric wire clamping modules 301 to move, thereby tightening the cable and avoiding the measurement results from being affected by loosening or movement.

[0034] The device 100 is also fixedly connected to a tester 304, which is connected to a contact clamp 313 and a resistance test contact 312. In this way, the tester 304 can transmit current to the contact clamp 313, the contact clamp 313 supplies current to the cable, and the data collected by the resistance test contact 312 is sent to the tester 304 for analysis to realize resistance testing.

[0035] Furthermore, the electric wire clamping module 301 also includes a module box 314, a clamping motion table 315, a first lead screw 316, a second lead screw 317, and a first motor 318. A guide post 319 is fixedly connected inside the module box 314, and two sets of clamping motion tables 315 are slidably connected to the guide post 319. One set of clamping motion tables 315 is threadedly connected to the first lead screw 316, and the other set of clamping motion tables 315 is threadedly connected to the second lead screw 317. The first lead screw 316 and the second lead screw 317 are poweredly connected. The first motor 318 is fixedly connected to the module box 314, and the first motor 318 is poweredly connected to either the first lead screw 316 or the second lead screw 317.

[0036] The module box 314 is equipped with a motion slot for the clamping motion table 315. A set of motion mounting seats 320 is slidably connected to each set of clamping motion tables 315 on the motion slot. The motion mounting seats 320 are fixedly connected to the corresponding clamping motion table 315.

[0037] The aforementioned contact clamp 313 includes two sets of clamping platforms 321, which are fixedly connected to two sets of motion mounting seats 320. The first motor 318 can drive the first lead screw 316 and the second lead screw 317 to rotate, causing the two sets of clamping motion platforms 315 to move the corresponding motion mounting seats 320 closer together or further apart. When the two sets of motion mounting seats 320 move together, the two sets of clamping platforms 321 can clamp and fix the cable.

[0038] Furthermore, the electric tensioning module 302 includes a module base 322, a guide rail 323, a third lead screw 324, and a second motor 325. The module base 322 is fixedly connected to one end of the test box 303 on the mounting base 202. The guide rail 323 is fixedly connected to the module base 322. The motion seat 326 is slidably connected to the guide rail 323. The third lead screw 324 is threadedly connected to the motion seat 326. The second motor 325 is fixedly connected to the mounting base 202. The second motor 325 is powered by the third lead screw 324. A set of electric wire clamping modules 301 is fixedly connected to the motion seat 326. When it is necessary to tighten the cable, the second motor 325 can drive the third lead screw 324 to rotate. At this time, the module base 322 moves linearly on the guide rail 323, which can drive the upper electric wire clamping module 301 to move linearly, thereby realizing the cable tightening work.

[0039] Finally, the device 100 is also equipped with a PLC controller and a motor controller. The electric telescopic cylinder 201, the first motor 318, and the second motor 325 are connected to the motor controller. The motor controller, heating components, thermocouples, and testing instrument 304 are connected to the PLC controller. In this way, the PLC controller, in conjunction with the motor controller, can automatically control the electric telescopic cylinder 201, the first motor 318, and the second motor 325 to achieve automatic leveling, clamping, and tensioning. Moreover, the PLC controller can automatically control the operation of the heating components based on the thermocouple data to achieve automatic temperature control. Furthermore, the PLC controller can also control the operation of the testing instrument 304.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated DC resistance testing device, comprising a device base (100), an electric lifting and leveling mechanism (200), and a testing assembly (300), characterized in that: The device platform (100) is equipped with the electric lifting and leveling mechanism (200), which includes an electric telescopic cylinder (201), a mounting base (202), a sliding column (203), and a motion slide (204). Two sets of electric telescopic cylinders (201) are fixedly connected to the device platform (100). The piston end of each set of electric telescopic cylinders (201) is rotatably connected to the motion slide (204). The mounting base (202) is fixedly connected to the sliding column (203) corresponding to each set of motion slides (204). The motion slide (204) is slidably connected to the corresponding sliding column (203). The test assembly (300) is provided on the mounting base (202).

2. The automated DC resistance testing device according to claim 1, characterized in that: The test assembly (300) includes an electric wire clamping module (301), an electric tensioning module (302), a test box (303), and a tester (304). The test box (303) is fixedly connected to the mounting base (202). The test box (303) has a test chamber inside. The test box (303) has an elastic sealing platform group (309) inside. The test chamber has multiple sets of thermocouples and multiple sets of resistance test contacts (312). A heating component is fixedly connected inside the test box (303). The mounting base (202) is provided with a set of electric wire clamping modules (301) at both ends of the test box (303). The electric wire clamping module (301) includes a contact clamp (313). The mounting base (202) is provided with an electric tensioning module (302) in conjunction with the set of electric wire clamping modules (301). The tester (304) is fixedly connected to the device base (100), and the tester (304) is connected to the contact clamp (313) and the resistance test contact (312).

3. The automated DC resistance testing device according to claim 2, characterized in that: The electric wire clamping module (301) further includes a module box (314), a clamping motion table (315), a first lead screw (316), a second lead screw (317), and a first motor (318). A guide column (319) is fixedly connected inside the module box (314). Two sets of clamping motion tables (315) are slidably connected on the guide column (319). The first lead screw (316) is threadedly connected to one set of clamping motion tables (315), and the second lead screw (317) is threadedly connected to the other set of clamping motion tables (315). The first lead screw (316) and the second lead screw (317) are poweredly connected. The first motor (318) is fixedly connected to the module box (314). The first motor (318) is poweredly connected to the first lead screw (316) or the second lead screw (317). The module box (314) is provided with a motion slot matching the clamping motion table (315). A set of motion mounting seats (320) is slidably connected to each set of clamping motion tables (315) on the motion slot. The motion mounting seats (320) are fixedly connected to the corresponding clamping motion table (315). The contact clamp (313) includes two sets of clamping platforms (321), which are respectively fixedly connected to two sets of motion mounting bases (320).

4. The automated DC resistance testing device according to claim 3, characterized in that: The electric tensioning module (302) includes a module base (322), a guide rail (323), a third lead screw (324), and a second motor (325). The module base (322) is fixedly connected to one end of the test box (303) on the mounting base (202). The guide rail (323) is fixedly connected to the module base (322). A motion seat (326) is slidably connected to the guide rail (323). The third lead screw (324) is threadedly connected to the motion seat (326). The second motor (325) is fixedly connected to the mounting base (202). The second motor (325) is poweredly connected to the third lead screw (324). A set of electric wire clamping modules (301) is fixedly connected to the motion seat (326).

5. The automated DC resistance testing device according to claim 2, characterized in that: The test box (303) includes a lower box (305) and an upper box (306). The lower box (305) is fixedly connected to the mounting base (202). The upper box (306) is hinged to one side of the lower box (305). Both the lower box (305) and the upper box (306) are provided with arc-shaped cavities (307). The two sets of arc-shaped cavities (307) constitute the test cavity. The lower box (305) and the upper box (306) are connected by a latch (308).

6. The automated DC resistance testing device according to claim 5, characterized in that: The elastic sealing platform group (309) is provided in two groups. The two groups of elastic sealing platform groups (309) are respectively close to the two ends of the test chamber. Each group of elastic sealing platform groups (309) includes an upper elastic compression platform (310) fixedly connected to the upper box (306) and a lower elastic compression platform (311) fixedly connected to the lower box (305).

7. The automated DC resistance testing device according to claim 2, characterized in that: The heating element is a graphene heater.

8. An automated DC resistance testing device according to claim 4, characterized in that: The device base (100) is internally connected to a PLC controller and a motor controller. The electric telescopic cylinder (201), the first motor (318), and the second motor (325) are connected to the motor controller. The motor controller, heating components, thermocouples, and tester (304) are connected to the PLC controller.

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