An automatic testing device for electrical parameters of automobile capacitors

Abstract

The present invention proposes an automatic testing device for electric parameters of automobile capacitors, and relates to the technical field of capacitor detection. The testing device includes a frame, at least two detection contact mechanisms are arranged on the frame, two detection devices are arranged on the frame respectively connected to the signals of the two detection contact mechanisms, a display screen is arranged on the frame connected to the signals of the two detection devices, a conveying mechanism for transmitting capacitors is arranged in the frame, a driving mechanism for driving the two detection contact mechanisms to reciprocate is arranged on the frame, and a guiding mechanism for guiding the capacitors to move along the transmission direction of the conveying mechanism is arranged on the frame; the conveying mechanism is convenient for conveying the capacitors to be detected to the detection area on the frame in batches, and a driving mechanism for driving the two detection contact mechanisms to reciprocate is arranged on the frame, so that the two detection contact mechanisms are respectively in contact with the electrodes of the same capacitor within a period of time, so as to measure different parameters and improve the detection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of capacitor detection, and in particular to an automatic testing device for electrical parameters of automobile capacitors. Background Art

[0002] Automotive capacitors are dry-type, non-inductive, wound-type DC support capacitors, which are basically customized products. In the process of electrical performance testing of the above-mentioned finished capacitors, the three parameters of the product need to be tested: C value (capacitance), DF value (loss value), and IR value (insulation resistance value). At present, when the manual clamping test method is used, two test equipment instruments are required for the three parameters, so that at least two people are required for the test, and the test method is the original single measurement, which makes testing a batch of products not only time-consuming but also laborious. When manually clamping a single test, human errors or unstable clamping may occur, causing the product to fall or fly away; and manual work also leads to inefficient testing procedures, and is prone to errors, not fool-proof, and cannot guarantee the stability of product quality. It is easy to cause defective products to flow to the next process, resulting in the occurrence of production accidents. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic testing device for electrical parameters of automobile capacitors, which can solve the problems raised by the above-mentioned background technology in view of the deficiencies of the prior art.

[0004] The technical solution of the present invention is achieved in this way:

[0005] The invention provides an automatic testing device for electric parameters of automobile capacitors, comprising a frame, at least two detection contact mechanisms are arranged on the frame, two detection devices are arranged on the frame and are respectively connected to the two detection contact mechanisms by signal, a display screen is arranged on the frame and is connected to the two detection devices by signal, a conveying mechanism for transmitting capacitors is arranged in the frame, a driving mechanism for driving the two detection contact mechanisms to reciprocate is arranged on the frame, and a guiding mechanism for guiding the capacitors to move along the transmission direction of the transmission mechanism is arranged on the frame.

[0006] In some technical schemes of the present invention, the driving mechanism includes a second bracket and a first bracket installed on the frame, a second rotating rod is rotatably provided on the second bracket, a rotating seat is provided at the end of the second rotating rod placed between the second bracket and the first bracket, two swing arms are symmetrically provided on the outer side wall of the rotating seat, mounting parts are installed on the swing arms, two detection contact mechanisms are respectively arranged on the outer side walls of the two mounting parts, and an adjustment mechanism for adjusting the rotation angle of the rotating seat is provided on the first bracket.

[0007] In some technical schemes of the present invention, the adjustment mechanism includes a first rotating rod rotatably set on a first bracket, a mounting seat is installed on the free end of the first rotating rod, a semicircular adjustment block is provided on the side wall of the mounting seat, an adjustment chamber adapted to it is opened on the side wall of the rotating seat opposite to the adjustment block, a part of the adjustment block is embedded in the adjustment chamber, a toggle arm abutting against any one of the mounting parts is provided on the mounting seat, and a first drive motor transmission-connected to the first rotating rod is provided on the first bracket.

[0008] In some technical solutions of the present invention, the detection contact mechanism includes a sliding arm arranged on a mounting member, the mounting member is rotatably arranged on a swing arm, a clamping member is provided on the sliding arm, a detection groove adapted to the electrode of the capacitor is provided on the outer wall of the clamping member, and a second drive motor transmission-connected to the mounting member is provided on the swing arm.

[0009] In some technical solutions of the present invention, a spring sheet connected to the sliding arm is provided on the clamping member.

[0010] In some technical solutions of the present invention, the sliding arm is a telescopic rod, wherein one clamping member is mounted on the body of the telescopic rod, and the other clamping member is mounted on the telescopic end of the telescopic rod.

[0011] In some technical schemes of the present invention, the guiding mechanism includes a supporting frame installed on both sides of the frame, the supporting frame is provided with a mounting frame, two limit plates are provided in the mounting frame, an adjusting rod connected to the limit plates is passed through the mounting frame, and an adjusting spring connected to the mounting frame is sleeved on the adjusting rod.

[0012] In some technical solutions of the present invention, a conveying platform is installed on the frame, and one end of the conveying platform abuts against the conveying surface of the conveyor belt.

[0013] In some technical solutions of the present invention, mounting grooves are provided on opposite side walls of the limiting plate, a chain belt connected end to end is rotatably provided in the mounting groove, and a plurality of adjustment blocks are provided around the outer side wall of the chain belt.

[0014] In some technical solutions of the present invention, the conveying mechanism includes two transmission rollers installed in a frame, a transmission belt connected end to end is wound around the two transmission rollers, and a third drive motor drivingly connected to one of the transmission rollers is provided on the frame.

[0015] Compared with the prior art, the present invention has at least the following advantages or beneficial effects:

[0016] The conveying mechanism is convenient for conveying the capacitors to be tested in batches to the area to be tested on the rack, thereby improving the inspection efficiency and avoiding the problem of detection errors or missed detections during manual inspection of capacitors. The rack is provided with a driving mechanism for driving the two detection contact mechanisms to reciprocate, so that the two detection contact mechanisms respectively contact with the electrodes of the same capacitor within a period of time, thereby measuring different parameters and improving the inspection efficiency. The rack is provided with a guiding mechanism for guiding the capacitor to move along the transmission direction of the transmission mechanism, thereby avoiding the deviation of the capacitor when it moves along its transmission direction under the transmission of the transmission mechanism, resulting in the detection end of the detection contact mechanism being unable to contact with the electrode of the capacitor or a virtual connection, and the detection result of the detected capacitor having an error. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a left-side structural schematic diagram of the present invention;

[0020] Figure 3 It is a three-dimensional combination schematic diagram of the driving mechanism in the present invention;

[0021] Figure 4 This is a schematic diagram of the installation structure of the regulating chamber and the regulating block of the present invention;

[0022] Figure 5 It is a schematic diagram of the installation structure of the clamping member in the present invention;

[0023] Figure 6 It is a schematic diagram of the internal structure of the limiting plate in the present invention.

[0024] Icons: 1. Frame; 2. Conveyor platform; 3. Mounting frame; 4. Support frame; 5. Adjustment spring; 6. Adjustment rod; 7. Limit plate; 8. First bracket; 9. First drive motor; 10. First rotating rod; 11. Rotating seat; 12. Capacitor; 13. Conveyor belt; 14. Conveyor roller; 15. Second bracket; 16. Second rotating rod; 17. Second drive motor; 18. Swing arm; 19. Mounting piece; 20. Toggle arm; 21. Sliding arm; 22. Spring sheet; 23. Clamping piece; 24. Limit block; 25. Chain belt; 26. Adjustment chamber; 27. Adjustment block; 28. Mounting seat. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] Please refer to Figure 1-Figure 6 shown.

[0029] The present invention provides an automatic testing device for electric parameters of automobile capacitors, such as Figure 1 , Figure 2As shown in the figure, it includes a frame 1 with a "C"-shaped cross-section. The frame 1 is welded by steel profiles. There are at least two detection contact mechanisms on the frame 1. The two detection contact mechanisms facilitate the signal connection between the capacitor and the detection equipment. Through the two detection contact mechanisms, different parameters of the detected capacitor can be transmitted to different detection equipment respectively, ensuring the accuracy of the parameter detection of the capacitor 12. There are two detection devices on the frame 1 that are respectively signal-connected to the two detection contact mechanisms and are used to detect different parameters of the capacitor 12. The detection devices are common devices commonly used to detect capacitors in the prior art. The detection devices are built into the frame 1 and will not be elaborated here. There is a display screen on the frame 1 that is signal-connected to the two detection devices. The display screen is arranged on the outer side wall of the frame 1, facilitating the detection personnel to directly observe the detection parameters of each capacitor during detection. There is a conveying mechanism in the frame 1 for conveying the capacitor 12, facilitating the batch-by-batch conveyance of the capacitor 12 to the detection area on the frame 1, improving the inspection efficiency, and avoiding problems such as detection errors or missed inspections caused by manual inspection of the capacitor 12. There is a driving mechanism on the frame 1 for driving the two detection contact mechanisms to reciprocate, enabling the two detection contact mechanisms to contact the electrodes of the same capacitor 12 respectively within a certain period of time, thereby measuring different parameters and improving the detection efficiency. There is a guiding mechanism on the frame 1 for guiding the capacitor 12 to move along the conveying direction of the conveying mechanism, avoiding deviations when the capacitor 12 moves along its conveying direction under the conveyance of the conveying mechanism, resulting in the detection end of the detection contact mechanism being unable to contact the electrode of the capacitor 12 or having a virtual connection, and causing errors in the detection results of the detected capacitor 12.

[0030] In some technical solutions of the present invention, the driving mechanism includes a second bracket 15 and a first bracket 8 that are fixed to the frame 1 by bolts. There is a relatively large installation space reserved between the second bracket 15 and the first bracket 8. A second rotating rod 16 is rotatably provided on the second bracket 15 through a bearing. A rotating seat 11 is fixedly provided at the end of the second rotating rod 16 between the second bracket 15 and the first bracket 8 by bolts. Two swing arms 18 are symmetrically provided on the outer side wall of the rotating seat 11. The swing arms 18 are integrally formed with the rotating seat 11. Mounting members 19 are installed on the swing arms 18. The axis of the mounting member 19 is parallel to the axis of the second rotating rod 16. The two detection contact mechanisms are respectively arranged on the outer side walls of the two mounting members 19. The first bracket 8 is provided with an adjusting mechanism for adjusting the rotation angle of the rotating seat 11. In this way, the two detection contact mechanisms arranged on the second bracket 15 can be cyclically brought into the detection area to contact the electrodes of the capacitor 12, thereby measuring different parameters for one capacitor 12, and improving the detection efficiency of the capacitor 12 by using the above structure.

[0031] In some technical schemes of the present invention, the adjustment mechanism includes a first rotating rod 10 rotatably arranged on the first bracket 8 through a bearing, a mounting seat 28 is installed on the free end of the first rotating rod 10 by bolts, a semicircular adjustment block 27 is provided on the side wall of the mounting seat 28, and an adjustment chamber 26 adapted to it is opened on the side wall of the rotating seat 11 opposite to the adjustment block 27, and the adjustment chamber 26 is composed of two grooves, the cross-sections of the grooves are both circular, and parts of the two grooves intersect, and the circle where one of the grooves is located intersects with the circle where the other groove is located, and the radius of the circle where the two grooves are located is equal to the radius of the circle where the adjustment block 27 is located; a part of the adjustment block 27 is embedded in one of the grooves in the adjustment chamber 26, and a toggle arm 20 abutting against any one of the mounting members 19 is provided on the mounting seat 28, and the toggle wall 20 and the mounting seat 28 are integrally formed, and a first drive motor 9 connected to the first rotating rod 10 through a coupling transmission is provided on the first bracket 8.

[0032] In some technical schemes of the present invention, the detection contact mechanism includes a sliding arm 21 arranged on a mounting member 19, and the mounting member 19 is rotatably arranged on a swing arm 18 through a bearing. The mounting member 19 is a hollow pipe structure inside. A clamping member 23 is provided on the sliding arm 21, and the clamping member 23 is installed on the outer wall of the sliding arm 21 through a bushing. A detection groove adapted to the electrode of the capacitor is provided on the outer wall of the clamping member 23, and a second drive motor 17 transmission-connected to the mounting member 19 is provided on the swing arm 18.

[0033] In some technical solutions of the present invention, a spring sheet 22 connected to the sliding arm 21 is provided on the clamping member 23. This allows the clamping member 23 to have a certain amount of space to move when in contact with the electrode of the capacitor 12, thereby preventing the clamping member 23 from making hard contact with the electrode of the capacitor 12, thereby preventing the capacitor 12 from being damaged during the detection process.

[0034] In some technical solutions of the present invention, the sliding arm 21 is a telescopic rod, wherein one clamping member 23 is mounted on the body of the telescopic rod, and the other clamping member 23 is mounted on the telescopic end of the telescopic rod. The relative spacing between the two clamping members 23 can be adjusted by the telescopic rod, so as to adapt to capacitors of different sizes and contact with the electrodes on the capacitor 12, thereby improving the adaptability and detection range of the present structure.

[0035] The working process of the driving mechanism in detecting the capacitor 12 is:

[0036] First, the transmission mechanism is set to transport the capacitors 12 arranged in a column to the area to be detected one by one. At this time, after the position sensor set between the second bracket 15 and the first bracket 8 detects that the capacitor 12 to be detected has arrived in the area to be detected, the barcode scanner set between the second bracket 15 and the first bracket 8 is aimed at the product tracking code on the product body and scans it. After the scanning is completed, the processing system in the detection equipment confirms the specific model of the capacitor 12 to be detected. After confirmation, the detection procedure starts; in the above process, the detection equipment and the display are in working state, such as Figure 3 As shown, in the first step, the first drive motor 9 needs to be started, and the first drive motor 9 drives the first rotating rod 10 to perform counterclockwise rotation on the first bracket 8; the toggle arm 20 installed on the mounting seat 28 is in contact with the mounting member 19, and then the detection contact mechanism installed on the mounting member 19 is pushed to gradually approach the capacitor 12 to be detected, until it rotates about 90 degrees, and the two clamping members 23 in the detection contact mechanism are in contact with the two electrodes of the capacitor 12, and the two electrodes are placed in the detection groove, so that the contact strength between the two can be improved, and the problem of virtual connection can be avoided, resulting in the problem of inaccurate detection results; when the above-mentioned detection contact mechanism is completed, the detection data of the capacitor is displayed on the display screen and judged by the detection personnel; at the same time, as Figure 3 As shown, the second drive motor 17 in the detection contact mechanism drives the mounting member 19 to perform a clockwise circular motion on the swing arm 18, so that the mounting member 19 can prevent the driving mechanism from continuing to perform a periodic circular motion; at this time, the two clamping members 23 in the detection contact mechanism are out of contact with the two electrodes of the capacitor 12; and, as shown in FIG. Figure 3 As shown, the toggle arm 20 will continue to push the mounting member 19 to rotate clockwise. Figure 4 As shown, until the adjustment block 27 moves from one of the grooves to the other groove, the toggle arm 20 will pass through the channel between the above-mentioned mounting member 19 and the first rotating rod 10, and will no longer abut against the above-mentioned mounting member 19; then it will abut against another mounting member 19, and push another set of detection contact mechanisms installed on the mounting member 19 to perform the next detection parameter detection on the capacitor 12, thereby performing different items of detection on the same capacitor 12 within a certain period of time, thereby improving the detection efficiency of the detection equipment.

[0037] In some technical schemes of the present invention, the guiding mechanism includes a support frame 4 installed on both sides of the frame 1, the support frame 4 is fixedly connected to the frame 1 by bolts, the support frame 4 is provided with a mounting frame 3 perpendicular to it, the mounting frame 3 and the support frame 4 are integrally formed, two limit plates 7 are provided in the mounting frame 3, an adjusting rod 6 connected to the limit plate 7 is passed through the mounting frame 3, and an adjusting spring 5 connected to the mounting frame 3 is sleeved on the adjusting rod 6. Through the above structure, the capacitor 12 placed between the two limit plates 7 can be flexibly clamped, and the capacitor 12 can be guided to move along the transmission direction of the transmission mechanism, thereby ensuring the detection effect of this structure on the capacitor 12.

[0038] In some technical solutions of the present invention, a conveyor platform 2 is installed on the frame 1, and one end of the conveyor platform 2 abuts against the transmission surface of the conveyor belt 13. This facilitates the operator to convey the capacitor 12 to the limiting area between the two limiting plates 7, thereby improving the convenience of the structure during operation.

[0039] In some technical solutions of the present invention, mounting grooves are provided on the opposite side walls of the limit plate 7, and a chain belt 25 connected end to end is provided in the mounting groove, and a plurality of adjustment blocks 27 are provided around the outer wall of the chain belt 25. Through the above structure, when the transmission mechanism drives the capacitor to move along its transmission direction, the operator first places the capacitor 12 between the two chain belts 25 by pushing the device or manually, and the capacitor 12 abuts against the two relative adjustment blocks 27 respectively located on the chain belts 25, and then the transmission mechanism pushes the capacitor 12 to move in its transmission direction. At this time, the chain belt 25 rotating in the mounting groove also moves in a circle in the mounting groove driven by the transmission mechanism, so as to continuously transport the capacitor to the area to be detected; the adjustment blocks 27 respectively provided on the two chain belts 25 can adjust the relative spacing of each capacitor 12, avoid the spacing between any two adjacent capacitors 12 from being large or small, and keep the spacing between any two adjacent capacitors 12 in a relatively constant state, so as not to cause the problem of virtual connection when the electrodes of the capacitor 12 contact the clamping member 23, and affect the detection effect of the present structure on the capacitor 12.

[0040] In some technical solutions of the present invention, the conveying mechanism includes two transmission rollers 14 installed in the frame 1, and a transmission belt 13 connected end to end is wound around the two transmission rollers 14, and a third drive motor is provided on the frame 1 and is transmission-connected to one of the transmission rollers 14. The transmission speed of the capacitor 12 can be controlled by the above structure, and the third drive motor is a servo motor, which can be started and stopped at any time, ensuring the efficient operation of the structure.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic testing device for electrical parameters of automobile capacitors, characterized in that: The invention comprises a frame (1), wherein at least two detection contact mechanisms are arranged on the frame (1), two detection devices are arranged on the frame (1) and are respectively connected to the signals of the two detection contact mechanisms, a display screen is arranged on the frame (1) and is connected to the signals of the two detection devices, a conveying mechanism for transmitting a capacitor (12) is arranged inside the frame (1), a driving mechanism for driving the two detection contact mechanisms to reciprocate is arranged on the frame (1), and a guiding mechanism for guiding the capacitor (12) to move along the transmission direction of the transmission mechanism is arranged on the frame (1).

2. The automatic testing device for electric parameters of automobile capacitors according to claim 1 is characterized in that: The driving mechanism comprises a second bracket (15) and a first bracket (8) mounted on the frame (1); a second rotating rod (16) is provided on the second bracket (15); a rotating seat (11) is provided at an end of the second rotating rod (16) located between the second bracket (15) and the first bracket (8); two swing arms (18) are symmetrically provided on the outer side wall of the rotating seat (11); a mounting member (19) is installed on each of the swing arms (18); the two detection contact mechanisms are respectively arranged on the outer side walls of the two mounting members (19); and an adjusting mechanism for adjusting the rotation angle of the rotating seat (11) is provided on the first bracket (8).

3. The automatic testing device for electric parameters of automobile capacitors according to claim 2 is characterized in that: The adjustment mechanism comprises a first rotating rod (10) rotatably arranged on the first bracket (8), a mounting seat (28) is installed on the free end of the first rotating rod (10), a semicircular adjustment block (27) is provided on the side wall of the mounting seat (28), an adjustment chamber (26) adapted to the adjustment block (27) is opened on the side wall of the rotating seat (11) opposite to the adjustment block (27), a part of the adjustment block (27) is embedded in the adjustment chamber (26), a toggle arm (20) abutting against any one of the mounting members (19) is provided on the mounting seat (28), and a first driving motor (9) drivingly connected to the first rotating rod (10) is provided on the first bracket (8).

4. The automatic testing device for electric parameters of automobile capacitors according to claim 2 is characterized in that: The detection contact mechanism comprises a sliding arm (21) arranged on the mounting member (19), the mounting member (19) is rotatably arranged on the swing arm (18), a clamping member (23) is provided on the sliding arm (21), a detection groove adapted to the electrode of the capacitor is provided on the outer wall of the clamping member (23), and a second drive motor (17) drivingly connected to the mounting member (19) is provided on the swing arm (18).

5. The automatic testing device for electric parameters of automobile capacitors according to claim 4 is characterized in that: The clamping member (23) is provided with a spring sheet (22) connected to the sliding arm (21).

6. The automatic testing device for electric parameters of automobile capacitors according to claim 4 is characterized in that: The sliding arm (21) is a telescopic rod, wherein one of the clamping members (23) is mounted on the body of the telescopic rod, and the other of the clamping members (23) is mounted on the telescopic end of the telescopic rod.

7. An automatic testing device for electrical parameters of automobile capacitors according to any one of claims 1 to 6, characterized in that: The guide mechanism comprises a support frame (4) mounted on both sides of the frame (1), the support frame (4) being provided with a mounting frame (3), two limit plates (7) being provided inside the mounting frame (3), an adjustment rod (6) connected to the limit plates (7) being passed through the mounting frame (3), and an adjustment spring (5) connected to the mounting frame (3) being sleeved on the adjustment rod (6).

8. The automatic testing device for electric parameters of automobile capacitors according to claim 7 is characterized in that: A conveying platform (2) is installed on the frame (1), and one end of the conveying platform (2) is in contact with the conveying surface of the conveying belt (13).

9. The automatic testing device for electric parameters of automobile capacitors according to claim 7, characterized in that: The side walls opposite to the limit plate (7) are provided with mounting grooves, in which a chain belt (25) connected end to end is rotatably arranged, and a plurality of adjustment blocks (27) are arranged around the outer side wall of the chain belt (25).

10. The automatic testing device for electric parameters of automobile capacitors according to claim 7, characterized in that: The conveying mechanism comprises two transmission rollers (14) installed in the frame (1), a transmission belt (13) connected end to end is wound around the two transmission rollers (14), and a third driving motor is provided on the frame (1) and is transmission-connected to one of the transmission rollers (14).

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