Dynamic batch test system for multi-parameter test of lead-type capacitor

Abstract

The utility model discloses a dynamic batch test system for multi-parameter test of lead type capacitors, which comprises a test rack, a plurality of test transmission belts, a test assembly, a temporary storage transmission belt, a transfer transmission belt, a transfer seat, a transfer rack and a transfer track, a test product plate is installed below each test conveying belt, a plurality of test assemblies are installed beside each test product plate, the plurality of temporary storage conveying belts are in one-to-one correspondence with the plurality of test product plates and are close to the plurality of test product plates, the transfer conveying belt is installed on the transfer seat through the transfer supporting seat, the transfer seat is installed on the transfer rail, and the transfer rail is installed on the transfer conveying belt. The transfer conveying belt can be close to each temporary storage conveying belt. According to the utility model, a plurality of capacitors can be transferred at the same time, the same parameter test can be carried out, then various parameter tests can be carried out in sequence, and all required parameter test functions can be completed in one process, so that the capacitor test efficiency and the automation degree can be obviously improved.

Description

Technical Field

[0001] The utility model relates to a capacitor testing system, in particular to a dynamic batch testing system for multi-parameter testing of lead-type capacitors. Background Art

[0002] Leaded capacitors are a common type of capacitor, mainly consisting of a shell (usually a cylindrical shell), leads and a core group. The two leads are respectively located at both ends of the shell and connected to the core group placed in the shell. The core group is sealed in the shell with epoxy resin.

[0003] Capacitors need to undergo a variety of performance tests before leaving the factory. For example, metallized polypropylene film dielectric capacitors need to undergo parameter tests such as capacitance, dielectric withstand voltage, insulation resistance, loss tangent, and equivalent series resistance (ESR) before leaving the factory. Only qualified products can be sold.

[0004] Among the traditional capacitor testing methods, some use single manual testing, while others use multiple batch testing. Their testing methods and defects are as follows:

[0005] In a single manual test, the tester first clamps the capacitor with a voltage test fixture to perform a voltage test, then removes the capacitor, discharges the capacitor, and clamps it with an insulation tester to test the insulation resistance. After testing the insulation resistance, the capacitor is discharged, removed, and clamped with a digital bridge to test the capacitance, loss tangent, and equivalent series resistance (ESR) of the capacitor. This test method has obvious disadvantages. Clamping and removing the capacitor between multiple test instruments seriously reduces the test efficiency. Multiple clamping will increase the mechanical wear of the capacitor leads. In addition, judging whether the capacitor is qualified by observing the test data with the naked eye is prone to missed judgments due to visual fatigue factors and human misjudgment, which will seriously affect the outflow of unqualified products.

[0006] In multiple batch tests, a batch test fixture is generally used. Multiple capacitors are installed on the batch test fixture, and the test instrument is connected to the terminal of the batch test fixture to complete the test of multiple capacitors at one time. However, this method makes it difficult to determine whether each capacitor is qualified for certain test items. Individual tests may be required, and batches of capacitors need to be loaded and unloaded. The test efficiency is still low, and the degree of automation is not high. Utility Model Content

[0007] The purpose of the present utility model is to provide a dynamic batch testing system for multi-parameter testing of lead-type capacitors with high efficiency and high degree of automation in order to solve the above problems.

[0008] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0009] A dynamic batch testing system for multi-parameter testing of lead-type capacitors, comprising a test rack, a test conveyor belt, a test assembly, a temporary conveyor belt, a transfer conveyor belt, a transfer seat, a transfer rack and a transfer track, wherein a plurality of test conveyor belts arranged parallel to each other are mounted on the test rack, a test product board for placing capacitors is mounted on the test rack below each of the test conveyor belts, a plurality of test push plates for driving the capacitors to move on the test product board are provided on the outer surface of the test conveyor belt, and a plurality of test push plates for testing partial parameters of the capacitors are mounted next to each of the test product boards. The test components are arranged in sequence in the length direction of the corresponding test conveyor belt, and the multiple temporary storage conveyor belts that are parallel to each other and arranged side by side correspond to and are close to the multiple test product plates. The transfer track is provided on the transfer rack, and the transfer conveyor belt is installed on the transfer seat through the transfer support seat. The transfer seat is installed on the transfer track and can move on the transfer track. The length direction of the transfer conveyor belt is the same as the length direction of the temporary storage conveyor belt and is perpendicular to the length direction of the transfer track. The transfer conveyor belt can be close to each of the temporary storage conveyor belts in the length direction.

[0010] Preferably, in order to realize the functions of rapid clamping test and rapid release of clamping and improve the degree of automation, each of the test components includes a tester, a conductive column, a proximity sensor, a clamping cylinder, a blanking cylinder and a blanking baffle. The two conductive columns are respectively connected to the two test ends of the tester. The vertical push rod of the clamping cylinder is located above the conductive column and is used to press the lead of the capacitor against the upper end of the conductive column. The proximity sensor is located near the conductive column. The push rod of the blanking cylinder is connected to the blanking baffle. A blanking hole is provided at the position corresponding to the conductive column on the test product board. The blanking baffle is located below the blanking hole. The signal output end of the tester and the signal output end of the proximity sensor are respectively connected to the signal input end of the controller. The control input end of the clamping cylinder, the control input end of the blanking cylinder, the control input end of the motor for controlling the rotation of the test conveyor belt, the control input end of the motor for controlling the rotation of the temporary conveyor belt, and the control input end of the motor for controlling the rotation of the transfer conveyor belt are respectively connected to the control output end of the controller.

[0011] Preferably, in order to automatically measure the total number of qualified products, each of the test components also includes a counting sensor, which is installed near a position next to the end of the test product board away from the temporary storage conveyor belt, and the signal output end of the counting sensor is connected to the signal input end of the controller.

[0012] Preferably, in order to facilitate the installation of various components and the collection of qualified products and unqualified products, a mounting base is provided under the test product board, and leakage holes are respectively provided on the mounting base corresponding to the multiple drop holes and the position of the test product board away from the end of the temporary storage conveyor belt.

[0013] Preferably, in order to realize the function of non-stop product transfer between the temporary storage conveyor belt and the transit conveyor belt, the outer surface of the temporary storage conveyor belt is provided with a plurality of temporary storage transfer plates for transferring capacitors, and the outer surface of the transit conveyor belt is provided with a plurality of transit transfer plates for transferring capacitors, and the middle part of the temporary storage transfer plate is provided with a "U"-shaped groove and the corresponding transit transfer plate can pass through the "U"-shaped groove.

[0014] Preferably, in order to achieve the purpose of transferring more capacitors at one time, the two parallel transfer conveyor belts are respectively installed on the transfer seat through the two transfer support seats.

[0015] Preferably, in order to achieve a more efficient capacitor transfer function, the dynamic batch testing system for multi-parameter testing of lead-type capacitors also includes a vibrating material tray for arranging the capacitors in an orderly manner, and the vibrating material tray is provided with a discharge guide rail for delivering the arranged capacitors, and the outlet of the discharge guide rail is close to the transfer conveyor belt.

[0016] The beneficial effects of the present invention are:

[0017] The utility model can realize the function of transferring multiple capacitors at the same time and performing the same parameter test by designing a test conveyor belt, test assembly, temporary storage conveyor belt, transfer conveyor belt, transfer seat and transfer track that cooperate with each other, and then perform multiple parameter tests in sequence, completing all required parameter test functions in one process, thus significantly improving the efficiency and automation level of capacitor testing; by designing a test assembly including a tester, a conductive column, a proximity sensor, a clamping cylinder, a blanking cylinder and a blanking baffle, a higher degree of automation of testing and material separation functions can be achieved, which is conducive to improving test accuracy and further improving test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional structural diagrams of the dynamic batch testing system for multi-parameter testing of lead-type capacitors described in the present invention, without the vibration material tray;

[0019] Figure 2 yes Figure 1 Enlarged view of "A" in the figure;

[0020] Figure 3 This is the second three-dimensional structural diagram of the dynamic batch testing system for multi-parameter testing of lead-type capacitors described in the present invention, with a vibrating material tray;

[0021] Figure 4 This is a schematic diagram of the main structure of the test components and temporary storage conveyor belt of the dynamic batch test system for multi-parameter testing of lead-type capacitors described in the utility model. The scale of the figure is larger than Figure 1 and Figure 3 . DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] like Figures 1-4 As shown, the dynamic batch testing system for multi-parameter testing of lead-type capacitors described in the present invention includes a test rack 1, a test conveyor belt 2, a test assembly, a temporary conveyor belt 4, a transfer conveyor belt 5, a transfer seat 7, a transfer rack 8 and a transfer track 9. A plurality of test conveyor belts 2 that are parallel to each other and arranged in parallel are installed on the test rack 1. A test product board 24 for placing capacitors 10 is installed at a position below each test conveyor belt 2 on the test rack 1. The outer surface of the test conveyor belt 2 is provided with a plurality of test push plates 22 for driving the capacitors 10 to move on the test product board 24. Next to each test product board 24 are installed a plurality of test push plates 22 for testing partial parameters of the capacitor 10 and on the corresponding test conveyor belt 2. The test components are arranged in sequence in the length direction of the belt 2, and multiple parallel and side-by-side temporary storage conveyor belts 4 correspond to and are close to multiple test product boards 24 respectively. The transfer track 9 is arranged on the transfer rack 8, and the transfer conveyor belt 5 is installed on the transfer seat 7 through the transfer support seat 6. The transfer seat 7 is installed on the transfer track 9 and can move on the transfer track 9. The transfer seat 7 can be moved by manual push or by a built-in motor. Both adopt a conventional connection structure. The length direction of the transfer conveyor belt 5 is the same as the length direction of the temporary storage conveyor belt 4 and is perpendicular to the length direction of the transfer track 9. The transfer conveyor belt 5 can be close to each temporary storage conveyor belt 4 in the length direction to realize the transfer of the capacitor 10.

[0024] like Figures 1-4 As shown, the present invention also discloses the following multiple more optimized specific structures:

[0025] In order to realize the functions of fast clamping test and fast releasing of clamping and improve the degree of automation, each of the test components includes a tester 23, a conductive column 21, a proximity sensor 19, a clamping cylinder 18, a blanking cylinder 17 and a blanking baffle 20. The two conductive columns 21 are respectively connected to the two test ends of the tester 23. The vertical push rod of the clamping cylinder 18 is located above the conductive column 21 and is used to press the lead of the capacitor 10 to the upper end of the conductive column 21. The proximity sensor 19 is located near the conductive column 21 and is used to sense the capacitor 10. The push rod of the blanking cylinder 17 is connected to the blanking baffle 20. A blanking hole (not visible in the figure) is provided at the position corresponding to the conductive column 21 on the test product board 24. The material baffle 20 is located below the blanking hole and contacts the bottom of the test product plate 24. The signal output end of the tester 23 and the signal output end of the proximity sensor 19 are respectively connected to the signal input end of the controller (not shown in the figure, multiple test components can share one controller), the control input end of the clamping cylinder 18, the control input end of the blanking cylinder 17, the control input end of the motor for controlling the rotation of the test conveyor belt 2, the control input end of the motor for controlling the rotation of the temporary conveyor belt 4, and the control input end of the motor for controlling the rotation of the transfer conveyor belt 5 are respectively connected to the control output end of the controller. The structure in which the conveyor belt is controlled to rotate by the motor is a conventional related structure of the conveyor belt in the prior art.

[0026] In order to automatically measure the total number of qualified products, each of the test components also includes a counting sensor 16, which is installed near a position on the test product board 24 next to the end away from the temporary storage conveyor belt 4, and the signal output end of the counting sensor 16 is connected to the signal input end of the controller.

[0027] In order to facilitate the installation of various components and the collection of qualified products and unqualified products, a mounting base 15 is provided under the test product board 24. Leakage holes (not visible in the figure) are respectively provided on the mounting base 15 at positions corresponding to the multiple drop holes and the test product board 24 away from the end of the temporary storage conveyor belt 4. The temporary storage conveyor belt 4 is installed on the mounting base 15 through the temporary storage support seat 3.

[0028] In order to realize the function of non-stop product transfer between the temporary storage conveyor belt 4 and the transfer conveyor belt 5, the outer surface of the temporary storage conveyor belt 4 is provided with a plurality of temporary storage transfer plates 11 for transferring capacitors 10, and the outer surface of the transfer conveyor belt 5 is provided with a plurality of transfer transfer plates 12 for transferring capacitors 10. The middle part of the temporary storage transfer plate 11 is provided with a "U"-shaped groove (not marked in the figure) and the corresponding transfer transfer plate 12 can pass through the "U"-shaped groove.

[0029] In order to achieve the purpose of transferring more capacitors 10 at one time, two parallel transfer conveyor belts 5 are respectively installed on the transfer base 7 through two transfer support bases 6.

[0030] In order to achieve a more efficient transfer function of the capacitor 10, the dynamic batch testing system for multi-parameter testing of lead-type capacitors also includes a vibrating material tray 13 for arranging the capacitors 10 in an orderly manner. The vibrating material tray 13 is provided with a discharge guide rail 14 for delivering the arranged capacitors 10. The outlet of the discharge guide rail 14 is close to the transfer conveyor belt 5. The vibrating material tray 13 is a mature product of existing technology.

[0031] like Figures 1-4As shown, when used, the multiple capacitors 10 to be tested can be transferred to the transfer conveyor belt 5 through the vibration material tray 13, and the process is as follows: the vibration material tray 13 arranges the multiple capacitors 10 in a certain order by vibration, and then sends the multiple capacitors 10 to the outlet of the discharge guide rail 14 in turn, the transfer conveyor belt 5 rotates, and when each transfer transfer plate 12 rotates to the outlet position of the discharge guide rail 14, the corresponding capacitor 10 is brought on, and after the transfer transfer plate 12 moves to the vertical direction, the capacitor 10 is completely placed on the transfer conveyor belt 5, and the transfer transfer plate 12 is used to achieve one-side blocking and limiting; if there is no vibration material tray 13, the staff will place the multiple capacitors 10 to be tested on the transfer conveyor belt 5, and each capacitor 10 is close to the corresponding transfer transfer plate 12 to achieve one-side blocking and limiting. At the same time, the temporary storage conveyor belt 4 rotates. At the end where the temporary storage conveyor belt 4 is close to the transfer conveyor belt 5, the rotation directions of the temporary storage conveyor belt 4 and the transfer conveyor belt 5 are opposite. The capacitor 10 will automatically fall off at the end of the transfer conveyor belt 5 and fall between the temporary storage conveyor belt 4 and the transfer conveyor belt 5. At the same time, the corresponding temporary storage transfer plate 11 will rotate upward to catch the corresponding capacitor 10 and drive it to follow the movement until the capacitor 10 is completely placed on the temporary storage conveyor belt 4, and the temporary storage transfer plate 11 is used to achieve one side blocking and limiting, completing the transfer function of a capacitor 10 between the transfer conveyor belt 5 and the temporary storage conveyor belt 4.After the capacitor 10 on the temporary storage conveyor belt 4 moves to the end position close to the test product board 24, it will automatically fall onto the test product board 24. The test conveyor belt 2 rotates, and the test push plate 22 drives the capacitor 10 to move on the test product board 24. When the capacitor 10 moves to a position close to the proximity sensor 19 of the first test component, the proximity sensor 19 sends an induction signal to the controller, and the controller controls the test conveyor belt 2 to stop rotating. At this time, the two leads of the capacitor 10 are respectively located above the two conductive pillars 21, and then the clamping cylinder 18 is actuated, and its push rod moves downward and presses the two leads of the capacitor 10 respectively on the upper ends of the two conductive pillars 21, thereby realizing the electrical connection between the capacitor 10 and the corresponding tester 23, and then the corresponding parameter test is started. After the test is completed, the clamping cylinder 18 is actuated, and its push rod moves upward to reset, as shown in FIG. If the parameter is qualified, the controller controls the test conveyor belt 2 to rotate and moves the capacitor 10 to the corresponding position of the next test component for corresponding parameter testing. The process is similar to the above until all parameter tests are completed. If they are qualified, they fall from the end of the test product plate 24 and fall into the qualified product collection box (not shown in the figure) placed below after passing through the corresponding leakage hole on the installation base plate 15, thus completing all parameter test processes of the capacitor 10; if the parameter is judged to be unqualified at any test position, the controller controls the corresponding blanking cylinder 17 to operate, and its push rod drives the blanking baffle 20 to operate, and the corresponding capacitor 10 falls from the corresponding blanking hole on the test product plate 24, and falls into the unqualified product collection box (not shown in the figure) placed below after passing through the corresponding leakage hole on the installation base plate 15, thus completing the parameter test process of the capacitor 10.

[0032] When two adjacent temporary storage conveyor belts 4 are filled with multiple capacitors 10 corresponding to the temporary storage transfer plates 11, since parameter testing requires a certain amount of time, the controller controls the temporary storage conveyor belt 4 and the transfer conveyor belt 5 to stop rotating, and then moves the transfer seat 7 and the transfer conveyor belt 5 to the positions corresponding to the other two temporary storage conveyor belts 4 on the transfer track 9 by electrical control or manual means. If there is a vibration material disk 13, it will follow the movement, and then control the temporary storage conveyor belt 4 and the transfer conveyor belt 5 to rotate, and transfer multiple capacitors 10 to the temporary storage conveyor belt 4 and the corresponding test product board 24 in the same way; repeat this operation, so that the transfer seat 7 and the transfer conveyor belt 5 move back and forth between multiple temporary storage conveyor belts 4, forming a dynamic batch testing process in which some capacitors 10 are tested for parameters and other capacitors 10 are transferred into place, thereby improving the utilization rate of each component and significantly improving the testing efficiency and classification accuracy of the capacitors 10.

[0033] The above embodiments are preferred embodiments of the present invention and are not limitations on the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A dynamic batch testing system for multi-parameter testing of leaded capacitors, comprising a test rack, characterized in that: The machine also includes a test conveyor belt, a test assembly, a temporary conveyor belt, a transfer conveyor belt, a transfer seat, a transfer rack and a transfer track. A plurality of test conveyor belts that are parallel to each other and arranged in parallel are installed on the test rack. A test product board for placing capacitors is installed on the test rack at a position below each of the test conveyor belts. A plurality of test push plates for driving the capacitors to move on the test product board are provided on the outer surface of the test conveyor belt. A plurality of test push plates for testing some parameters of the capacitors and corresponding to the length of the test conveyor belt are installed next to each of the test product boards. The test components are arranged in sequence in the direction, and the multiple temporary storage conveyor belts that are parallel to each other and arranged in parallel correspond to and are close to the multiple test product boards respectively. The transfer track is provided on the transfer rack, and the transfer conveyor belt is installed on the transfer seat through the transfer support seat. The transfer seat is installed on the transfer track and can move on the transfer track. The length direction of the transfer conveyor belt is the same as the length direction of the temporary storage conveyor belt and is perpendicular to the length direction of the transfer track. The transfer conveyor belt can be close to each of the temporary storage conveyor belts in the length direction.

2. The dynamic batch testing system for multi-parameter testing of leaded capacitors according to claim 1, characterized in that: Each of the test components includes a tester, a conductive column, a proximity sensor, a clamping cylinder, a blanking cylinder and a blanking baffle. The two conductive columns are respectively connected to the two test ends of the tester. The vertical push rod of the clamping cylinder is located above the conductive column and is used to press the lead of the capacitor against the upper end of the conductive column. The proximity sensor is located near the conductive column. The push rod of the blanking cylinder is connected to the blanking baffle. A blanking hole is provided at the position corresponding to the conductive column on the test product board. The blanking baffle is located below the blanking hole. The signal output end of the tester and the signal output end of the proximity sensor are respectively connected to the signal input end of the controller. The control input end of the clamping cylinder, the control input end of the blanking cylinder, the control input end of the motor for controlling the rotation of the test conveyor belt, the control input end of the motor for controlling the rotation of the temporary conveyor belt, and the control input end of the motor for controlling the rotation of the transfer conveyor belt are respectively connected to the control output end of the controller.

3. The dynamic batch testing system for multi-parameter testing of leaded capacitors according to claim 2, characterized in that: Each of the test components further includes a counting sensor, which is installed near a position on the test product board next to an end away from the temporary storage conveyor belt, and a signal output end of the counting sensor is connected to a signal input end of the controller.

4. The dynamic batch testing system for multi-parameter testing of leaded capacitors according to claim 3, characterized in that: A mounting base is provided below the test product board, and leakage holes are respectively provided on the mounting base corresponding to the plurality of drop holes and a position on the test product board corresponding to an end away from the temporary storage conveyor belt.

5. The dynamic batch testing system for multi-parameter testing of leaded capacitors according to any one of claims 1 to 4, characterized in that: The outer surface of the temporary storage conveyor belt is provided with a plurality of temporary storage transfer plates for transferring capacitors, and the outer surface of the transfer conveyor belt is provided with a plurality of transfer transfer plates for transferring capacitors. A "U"-shaped groove is provided in the middle of the temporary storage transfer plate and the corresponding transfer transfer plate can pass through the "U"-shaped groove.

6. The dynamic batch testing system for multi-parameter testing of leaded capacitors according to any one of claims 1 to 4, characterized in that: The two parallel transfer conveyor belts are respectively installed on the transfer seat through the two transfer support seats.

7. The dynamic batch testing system for multi-parameter testing of leaded capacitors according to any one of claims 1 to 4, characterized in that: The dynamic batch testing system for multi-parameter testing of lead-type capacitors also includes a vibrating material tray for arranging the capacitors in an orderly manner. The vibrating material tray is provided with a discharge guide rail for delivering the arranged capacitors, and the outlet of the discharge guide rail is close to the transfer conveyor belt.

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