Contact resistance test tool with function of detecting neglected loading of spring piece
By designing a contact resistance testing fixture that includes a fiber optic sensor and a buzzer alarm, the problem of inaccurate manual testing of spring sheets was solved, realizing automated and accurate spring sheet testing and alarm functions, thus ensuring product quality.
Patent Information
- Application Number
- CN202520119427.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In the existing technology, the detection of spring sheets in plastic shell flexible circuit boards relies on manual visual inspection, which can easily lead to false detections and missed detections, affecting product quality.
Design a contact resistance testing fixture that uses a fiber optic sensor and a buzzer alarm. The fiber optic sensor detects whether the spring sheet is installed in place and alarms when a defective product is detected. Combined with a PLC controller, it realizes automated testing.
It improves the accuracy of detection, reduces false detections and missed detections, ensures product quality, and prevents defective products from leaving the market through automatic alarm functions.
Smart Images
Figure CN223955688U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to power supply accessories production technical field, especially relate to a contact resistance test frock with spring piece missing detection function. BACKGROUND
[0002] The spring piece is installed when the plastic shell flexible row product is produced, and the enterprise will specially detect whether the spring piece on the plastic shell flexible row is installed and whether it is installed in place in order to improve the overall quality of the product. At present, workers mainly place the plastic shell flexible row on a jig similar to a go-no-go gauge, and observe the installation of the spring piece by the naked eye. Under the condition of long-term high-intensity repetitive work, the eyes are prone to fatigue, which may lead to false detection and missed detection, thereby affecting the quality of the product to some extent.
[0003] Therefore, the above technical problems need to be solved. UTILITY MODEL CONTENT
[0004] The utility model aims at overcoming the above-mentioned defects, and provides a contact resistance test frock with spring piece missing detection function, which is simple in structure, reasonable in design, more accurate than artificial detection, and beneficial to controlling product quality.
[0005] Technical scheme: In order to achieve the above-mentioned purpose, the utility model provides a contact resistance test frock with spring piece missing detection function, which comprises a workbench, a test plate and a detection assembly. The test plate and the detection assembly are arranged on the workbench, and the test plate and the detection assembly are arranged oppositely. The detection assembly comprises a group of optical fiber sensors and a buzzer. The optical fiber sensors are arranged opposite to the test plate.
[0006] When the utility model is used to detect whether the spring piece of the plastic shell flexible row is installed or installed in place, the plastic shell flexible row is only needed to be placed on the test plate. If the spring piece is missing or not installed in place, the plastic shell flexible row will move down by a distance on the test plate, so as to be detected by the optical fiber sensor.
[0007] Further, the detection assembly further comprises an L-shaped mounting fixed plate. A group of waist-shaped holes are arranged on one side of the mounting fixed plate. The optical fiber sensors are arranged through the waist-shaped holes. The optical fiber sensors are mounted in the waist-shaped holes through nuts.
[0008] Further, a plurality of bolt holes are arranged on the workbench. A group of connecting waist holes are arranged on the other side of the mounting fixed plate. The mounting fixed plate and the workbench are connected through the connecting waist holes and the bolt holes. The mounting position of the mounting fixed plate on the workbench can be adjusted, so as to change the distance between the optical fiber sensors and the test plate.
[0009] Further, the test plate is fixed on the workbench by bolts, and the top of the test plate is chamfered.
[0010] Further, the workbench is arranged in a case, and a PLC controller is arranged in the case.
[0011] Further, the PLC controller is electrically connected with the optical fiber sensor and the buzzer alarm respectively.
[0012] Further, the front of the case is provided with a key reset switch. When a spring sheet is missed or a plastic shell soft row is not installed in place, the buzzer alarm alarms, and the alarm can be only removed by the key reset switch.
[0013] Further, the back of the case is provided with a power supply interface, and a power switch is integrated on the power supply interface. The power supply interface is used for connecting the tooling with an external power supply, and the power switch controls the power-on state of the tooling.
[0014] Further, a silver coating is applied to the outer surface of the test plate. The silver-plated test plate plays a good conduction role when testing the contact resistance.
[0015] The above technical scheme can be seen that the utility model has the following beneficial effects compared with the prior art:
[0016] 1. The contact resistance test tool with the spring sheet missing detection function has simple structure and reasonable design, utilizes the characteristic that the plastic shell soft row moves a distance when the spring sheet is not installed, uses the optical fiber sensor to detect, and replaces the naked eye observation detection to be more accurate; meanwhile, the buzzer alarm is further added, the buzzer alarms when the defective product is detected, and the worker can only contact the key reset switch, and the defective product is further prevented from flowing out.
[0017] 2. The utility model can be "one machine with multiple uses", that is, the spring sheet installation can be detected, and the contact resistance can be tested. DETAILED DESCRIPTION
[0018] Figure 1 Fig. 1 is a structural schematic view of the contact resistance test tool with the spring sheet missing detection function according to the utility model;
[0019] Figure 2 Fig. 2 is a front view of the contact resistance test tool with the spring sheet missing detection function according to the utility model;
[0020] Figure 3 Fig. 3 is a rear view of the contact resistance test tool with the spring sheet missing detection function according to the utility model.
[0021] Figure 4 The use schematic view of the contact resistance test tool with spring sheet missing detection function.
[0022] In the figure: 1-workbench, 2-test plate, 3-detection assembly, 31-optical fiber sensor, 32-buzzing alarm, 33-mounting fixed plate, 4-cabinet, 41-key reset switch, 42-power interface, 43-power switch, 5-plastic shell soft row. DETAILED DESCRIPTION
[0023] It should be understood that the specific embodiments described herein are merely to explain the present application, and are not intended to limit the present application.
[0024] As Figures 1-3 shown: a contact resistance test tool with spring sheet missing detection function, including workbench 1, test plate 2 and detection assembly 3, the test plate 2 and detection assembly 3 are arranged on the workbench 1, the test plate 2 and detection assembly 3 are oppositely arranged, the detection assembly 3 includes a group of optical fiber sensors 31 and buzzing alarms 32, the optical fiber sensors 31 are arranged opposite to the test plate 2.
[0025] Among them, the detection assembly 3 further includes an L-shaped mounting fixed plate 33, one side of the mounting fixed plate 33 is provided with a group of waist-type holes, the optical fiber sensors 31 are arranged through the waist-type holes, and the optical fiber sensors 31 are installed in the waist-type holes through nuts.
[0026] Preferably, the workbench 1 is provided with a plurality of bolt holes, the other side of the mounting fixed plate 33 is provided with a group of connecting waist holes, and the mounting fixed plate 33 is connected with the workbench 1 through the connecting waist holes and the bolt holes. The mounting position of the mounting fixed plate 33 on the workbench 1 can be selected to adjust the distance between the mounting fixed plate 33 and the test plate 2, so as to meet the test of plastic shell soft row 1 of different sizes.
[0027] In addition, the test plate 2 is fixed on the workbench 1 through bolts, the top of the test plate 2 is chamfered, a group of through holes are arranged on the test plate 2, and the optical fiber sensors 31 are arranged opposite to the through holes.
[0028] Specifically, it further includes a cabinet 4, the workbench 1 is arranged on the cabinet 4, and the cabinet 4 is provided with a PLC controller.
[0029] Among them, the PLC controller is electrically connected with the optical fiber sensor 31 and the buzzing alarm 32 respectively. The optical fiber sensor 31 feeds back detection information to the PLC controller, and the PLC controller sends an instruction to control the switch of the buzzing alarm 32 according to the information.
[0030] In addition, the front of the case 4 is provided with a key reset switch 41. The back of the case 4 is provided with a power interface 42, and the power interface 42 is integrated with a power switch 43.
[0031] Further optimization scheme, the test board 2 outer surface is laid silver coating.
[0032] The utility model provides a kind of contact resistance test tooling with spring piece detection function of missing loading, when using: as shown in Figure 4 If spring piece is missing or not installed in place, the downward displacement of plastic shell soft row 5 increases, thereby shielding the through hole on test board 2, and after fiber sensor 31 detects, the information is fed back to PLC controller, and PLC controller controls buzzer 32 to alarm, and worker needs to operate key reset switch 41 to remove alarm;When contact resistance test is carried out, test pen is placed on test point on plastic shell soft row 5, and test board 2 can provide good conductivity.
[0033] The above is only preferred embodiment of the utility model, it should be pointed out, for ordinary skilled person in the prior art, on the premise of not departing from the principle of the utility model, can make a number of improvements, these improvements also should be regarded as the protection range of the utility model.
Claims
1. A contact resistance test tool having a missing spring leaf detection function, characterized by, Including workbench (1), test board (2) and detection assembly (3), test board (2) and detection assembly (3) are located on workbench (1), test board (2) and detection assembly (3) are oppositely arranged, detection assembly (3) includes a group of optical fiber sensors (31) and buzzer (32), optical fiber sensor (31) is arranged opposite test board (2).
2. The contact resistance test tool with a spring piece missing detection function according to claim 1, characterized in that, Detection assembly (3) further includes L-shaped mounting fixed plate (33), one side of mounting fixed plate (33) is provided with a group of waist type holes, optical fiber sensor (31) is arranged through the waist type hole, optical fiber sensor (31) is installed in waist type hole through nut.
3. The contact resistance test tool with a spring piece missing detection function according to claim 2, characterized in that, A plurality of bolt holes are provided on workbench (1), a group of connecting waist holes are provided on the other side of mounting fixed plate (33), mounting fixed plate (33) and workbench (1) are connected through connecting waist hole and bolt hole cooperation.
4. The contact resistance test tool with a spring piece missing detection function according to claim 1, characterized in that, Test board (2) is fixed on workbench (1) through bolt, the top of test board (2) is chamfered, a group of through holes are provided on test board (2), optical fiber sensor (31) is arranged opposite the through hole.
5. The contact resistance test tool with a spring piece missing detection function according to claim 1, characterized in that, It also includes a case (4), the workbench (1) is located on the case (4), the PLC controller is arranged in the case (4).
6. The contact resistance test tool with a spring piece missing detection function according to claim 5, characterized in that, The PLC controller is electrically connected with the optical fiber sensor (31) and the buzzer (32) respectively.
7. The contact resistance test tool with a spring piece missing detection function according to claim 6, characterized in that, The front of the case (4) is provided with a key reset switch (41).
8. The contact resistance test tool with a spring piece missing detection function according to claim 7, characterized in that, The back of the case (4) is provided with a power supply interface (42), the power supply interface (42) is integrated with a power switch (43).
9. The contact resistance test tool with a spring piece missing detection function according to claim 1, characterized in that, The outer surface of the test board (2) is coated with a silver coating.