Vehicle-mounted capacitor test fixture
By using a rotating downward cylinder mechanism and a check valve in conjunction with a robotic arm, automated testing of vehicle-mounted capacitors is achieved, solving the problems of low production capacity and unstable yield, improving testing accuracy and reducing production costs.
Patent Information
- Application Number
- CN202422028797.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-08-21
AI Technical Summary
Current automotive capacitor production suffers from low capacity, unstable yield, and complex testing fixtures requiring manual intervention, making fully automated production difficult.
By employing a rotary pressing cylinder mechanism and a check valve in conjunction with a robotic arm, the system enables automated loading, unloading, and testing of products, replacing traditional manual testing and improving the level of automation.
It improves testing efficiency, reduces human error rate, decreases production costs and product return rate, and enhances the accuracy of automated testing.
Smart Images

Figure CN223538886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle-mounted capacitor testing fixture technology, and in particular to a vehicle-mounted capacitor testing fixture. Background Technology
[0002] The first in the country to utilize a rotary downward cylinder combined with an air-locking valve for automatic clamping testing on automotive capacitor testing equipment, along with a robotic arm and an on-board inflation mechanism, achieves automatic cylinder clamping testing, replacing manual loading and clamping or unloading and opening. This eliminates the need for human intervention, truly realizing a fully automated loading and unloading method, increasing production capacity and freeing up manual labor. Automotive capacitor testing fixture automation is a new testing technology that has emerged in recent years with the trend of automotive electronics and intelligence. It uses automated equipment to replace traditional manual testing, aiming to improve testing efficiency, reduce human error, and decrease production costs.
[0003] In the current manufacturing industry of products such as automotive capacitors, production is done manually. The problems with manual production are: low production capacity and unreliable yield. The test fixtures are complex and require human intervention to assemble the products into the test fixtures. However, the equipment can automatically clamp the test fixtures with cylinders and integrate automatic feeding, unloading and testing functions with robotic arms, thus perfectly achieving the goal of automated production. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides an on-board capacitor testing fixture.
[0005] This utility model is achieved by the following technical solution: a vehicle-mounted capacitor testing fixture, including a support frame, a fixed base plate is threadedly connected to the top of the support frame, and a connection hole is opened at the top of the fixed base plate;
[0006] A high-voltage test contact assembly is fixedly connected to the top of the fixed base plate. A loss-tolerant test contact assembly is welded to the top of the fixed base plate. A first probe test assembly is fixedly connected to the top of the fixed base plate. A protective shell is inserted into the top of the first probe test assembly. A second probe test assembly is fixedly connected to the top of the fixed base plate. A probe test assembly is welded to the top of the fixed base plate. A mounting base is threaded to the top of the fixed base plate. A rotary pressing cylinder mechanism is fixedly connected to the top of the mounting base. A check valve is fixedly connected to the surface of the rotary pressing cylinder mechanism. A cylinder pressurization mechanism is welded to the top of the fixed base plate.
[0007] Through the above technical solution, the rotary pressing cylinder is clamped and opened under the control of the cylinder pressurization mechanism. The function of the check valve is to maintain the air pressure of the rotary pressing cylinder after the pressurization mechanism is cut off, so that the rotary pressing mechanism is in the clamped or open state, and works with the robot arm to fix the product on the fixture.
[0008] As a further improvement to the above solution, the high-voltage test contact assembly is symmetrically distributed around the fixed base plate, the capacitance test contact assembly is symmetrically distributed around the fixed base plate, and the first probe test assembly is located at the left end of the mounting base.
[0009] As a further improvement to the above scheme, the first probe test assembly is located at the left end of the rotary pressing cylinder mechanism, the cylinder pressurization mechanism is located on the front of the tolerance test contact assembly, and the second probe test assembly is located on the front of the first probe test assembly.
[0010] As a further improvement to the above solution, the probe testing component is located at the bottom of the protective shell, the second probe testing component is located at the bottom of the protective shell, and the probe testing component is located at the rear end of the mounting base.
[0011] As a further improvement to the above solution, the probe testing assembly is located at the rear end of the rotary pressing cylinder mechanism, which is located on the front of the protective housing.
[0012] Through the above technical solution, the probe testing component connects the terminals of the product that need to be tested to the contacts through probes and wires, and then tests the capacitance on the product by contacting the contacts through the test probes.
[0013] As a further improvement to the above solution, the connecting holes are symmetrically distributed around the fixed base plate, and the connecting holes are located at the top of the support frame.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention, through the combination of a rotary pressing cylinder mechanism and a check valve, provides a fast and convenient clamping or clamping mechanism. While most common clamping methods on the market employ quick-release clamps or spring mechanisms, these require manual intervention to open or clamp, thus failing to perfectly achieve automated production. By replacing traditional manual testing with a fully automated device, this invention aims to improve testing efficiency, reduce human error, and decrease production costs. It avoids errors caused by improper human operation, reduces manpower consumption, lowers training costs, and decreases product rework rates due to human error.
[0016] This invention achieves significantly higher accuracy in automated testing than manual testing by setting up the equipment. Automated testing equipment can precisely execute preset programs, avoiding errors caused by improper human operation. Automated testing can reduce the consumption of human resources, lower training costs, and reduce product return rates caused by human error. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the left-side structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the disassembled support frame structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the rotary downward pressing cylinder mechanism of this utility model.
[0021] Explanation of key symbols:
[0022] 1. Support frame; 2. Fixed base plate; 3. Connection hole; 4. High voltage test contact assembly; 5. Protective housing; 6. Capacitive test contact assembly; 7. Cylinder pressurization mechanism; 8. Rotary pressing cylinder mechanism; 9. First probe test assembly; 10. Second probe test assembly; 11. Probe test assembly; 12. Mounting base; 13. Check valve. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] Example:
[0025] Please combine Figure 1-4 The vehicle-mounted capacitor testing fixture of this embodiment includes a support frame 1, a fixed base plate 2 is threadedly connected to the top of the support frame 1, and a connection hole 3 is opened at the top of the fixed base plate 2.
[0026] A high-voltage test contact assembly 4 is fixedly connected to the top of the fixed base plate 2. A loss-tolerant test contact assembly 6 is welded to the top of the fixed base plate 2. A first probe test assembly 9 is fixedly connected to the top of the fixed base plate 2. A protective shell 5 is inserted into the top of the first probe test assembly 9. A second probe test assembly 10 is fixedly connected to the top of the fixed base plate 2. A probe test assembly 11 is welded to the top of the fixed base plate 2. A mounting base 12 is threadedly connected to the top of the fixed base plate 2. A rotary pressing cylinder mechanism 8 is fixedly connected to the top of the mounting base 12. A check valve 13 is fixedly connected to the surface of the rotary pressing cylinder mechanism 8. A cylinder pressurization device is welded to the top of the fixed base plate 2. Mechanism 7, through the cooperation of the rotary pressing cylinder mechanism 8 and the check valve 13, has a fast and convenient clamping or clamping function. The most common clamping methods on the market are quick clamps or spring mechanisms, but these require manual intervention to open or clamp, thus failing to perfectly achieve the goal of automated production. By setting up the entire equipment to replace traditional manual testing, it aims to improve testing efficiency, reduce human error, and reduce production costs. It avoids errors caused by improper human operation. Automated testing can reduce the consumption of human resources, reduce training costs, and reduce the product rework rate caused by human error.
[0027] The rotary pressing cylinder is clamped and opened under the control of the cylinder pressurization mechanism 7. The function of the check valve 13 is to maintain the air pressure of the rotary pressing cylinder after the pressurization mechanism is cut off, so that the rotary pressing mechanism is in the clamped or open state, and works with the robot arm to fix the product on the fixture.
[0028] The high-voltage test contact assembly 4 is symmetrically distributed around the fixed base plate 2, the capacitance test contact assembly 6 is symmetrically distributed around the fixed base plate 2, and the first probe test assembly 9 is located at the left end of the mounting base 12.
[0029] The first probe test assembly 9 is located at the left end of the rotary pressing cylinder mechanism 8, the cylinder pressurization mechanism 7 is located on the front of the capacitance test contact assembly 6, and the second probe test assembly 10 is located on the front of the first probe test assembly 9.
[0030] The probe test assembly 11 is located at the bottom of the protective housing 5, the second probe test assembly 10 is located at the bottom of the protective housing 5, and the probe test assembly 11 is located at the rear end of the mounting base 12.
[0031] The probe test assembly 11 is located at the rear end of the rotary pressing cylinder mechanism 8, which is located on the front of the protective housing 5. The overall automated testing accuracy of the equipment is much higher than that of manual testing because the automated testing equipment can execute precisely according to the preset program, avoiding errors caused by improper human operation. Automated testing can reduce the consumption of human resources, reduce training costs, and reduce the product return rate caused by human error.
[0032] The probe test assembly 11 connects the terminals of the product that need to be tested to the contacts via probes and wires, and then tests the capacitance on the product by contacting the contacts with the test probes.
[0033] The connecting holes 3 are symmetrically distributed around the fixed base plate 2, and the connecting holes 3 are located at the top of the support frame 1.
[0034] The implementation principle of an on-board capacitor testing fixture in this application embodiment is as follows: The product is fed by a robotic arm. The product has positioning holes that cooperate with the positioning pins of the testing fixture below for positioning. The air source is supplied through the cylinder pressurization mechanism 7, which enters the check valve and then the cylinder. The cylinder will be opened or clamped under pressure. After the cylinder is fully activated, the air source will stop supplying air. The gas in the cylinder will not leak due to the effect of the check valve. The cylinder will maintain pressure for a long time to ensure subsequent movement and testing. When the test is completed, pressure is applied to another cylinder pressurization mechanism 7, and the cylinder will open. The product is then unloaded by the robotic arm. With the cooperation of the rotating and pressing cylinder mechanism 8 and the check valve 13, it has a fast and convenient clamping or clamping function. Since the most commonly used clamping method on the market is the quick clamping method. Alternatively, a spring mechanism can be used for clamping, but this requires manual intervention to open or clamp, thus failing to perfectly achieve the goal of automated production. By setting up the entire equipment to replace traditional manual testing, the aim is to improve testing efficiency, reduce human error, and reduce production costs. It avoids errors caused by improper human operation. Automated testing can reduce the consumption of human resources, reduce training costs, and reduce product rework rates caused by human error. The accuracy of automated testing through setting up the entire equipment is far higher than that of manual testing because automated testing equipment can accurately execute preset programs, avoiding errors caused by improper human operation. Automated testing can reduce the consumption of human resources, reduce training costs, and reduce product rework rates caused by human error.
[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A vehicle-mounted capacitor testing fixture, comprising a support frame (1), wherein a fixed base plate (2) is threadedly connected to the top end of the support frame (1), and a connection hole (3) is provided at the top end of the fixed base plate (2); Its features are, A high-voltage test contact assembly (4) is fixedly connected to the top of the fixed base plate (2). A loss-tolerant test contact assembly (6) is welded to the top of the fixed base plate (2). A first probe test assembly (9) is fixedly connected to the top of the fixed base plate (2). A protective shell (5) is inserted into the top of the first probe test assembly (9). A second probe test assembly (10) is fixedly connected to the top of the fixed base plate (2). A probe test assembly (11) is welded to the top of the fixed base plate (2). A mounting base (12) is threadedly connected to the top of the fixed base plate (2). A rotary pressing cylinder mechanism (8) is fixedly connected to the top of the mounting base (12). A check valve (13) is fixedly connected to the surface of the rotary pressing cylinder mechanism (8). A cylinder pressurization mechanism (7) is welded to the top of the fixed base plate (2).
2. The vehicle-mounted capacitance testing fixture as described in claim 1, characterized in that: The high-voltage test contact assembly (4) is symmetrically distributed around the fixed base plate (2), the capacitance test contact assembly (6) is symmetrically distributed around the fixed base plate (2), and the first probe test assembly (9) is located at the left end of the mounting base (12).
3. The vehicle-mounted capacitance testing fixture as described in claim 1, characterized in that: The first probe test assembly (9) is located at the left end of the rotary pressing cylinder mechanism (8), the cylinder pressurization mechanism (7) is located on the front of the capacitance test contact assembly (6), and the second probe test assembly (10) is located on the front of the first probe test assembly (9).
4. The vehicle-mounted capacitance testing fixture as described in claim 3, characterized in that: The probe test assembly (11) is located at the bottom of the protective shell (5), the second probe test assembly (10) is located at the bottom of the protective shell (5), and the probe test assembly (11) is located at the rear end of the mounting base (12).
5. The vehicle-mounted capacitance testing fixture as described in claim 1, characterized in that: The probe test assembly (11) is located at the rear end of the rotary pressing cylinder mechanism (8), which is located on the front of the protective housing (5).
6. The vehicle-mounted capacitance testing fixture as described in claim 5, characterized in that: The connecting holes (3) are symmetrically distributed around the fixed base plate (2), and the connecting holes (3) are located at the top of the support frame (1).