Multi-station detection equipment for aluminum electrolytic capacitor production

Abstract

The invention relates to a multi-station detection device for aluminum electrolytic capacitor production, and belongs to the technical field of capacitor processing. Comprising an annular detection frame provided with an input port and an output port, and a roller conveying belt is arranged on the annular detection frame; the driving chain plate is arranged on the outer side of the annular detection frame; the fixed clamping claws are arranged on the driving chain plate at equal intervals, and limiting grooves matched with the capacitor in shape are formed in the inner sides of the fixed clamping claws and used for clamping the capacitor and driving the capacitor to move along the outer side of the annular detection frame; the supply unit is arranged at an input port of the annular detection frame; the multi-station detection units are arranged at intervals along the outer side of the annular detection frame; and the screening driving unit is correspondingly arranged on the multi-station detection unit, a screening opening is preset in the middle of the annular detection frame, and the screening driving unit pushes the screened workpieces into the screening opening. The technical problem that in the prior art, due to a long-distance supporting plate and a first transmission belt, a detection conveying device enables a detection device to be low in screening efficiency in the continuous production detection process is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitor processing, and in particular relates to a multi-station detection device for producing aluminum electrolytic capacitors. Background Art

[0002] Aluminum electrolytic capacitors, as common electronic components, are widely used in the power supply and signal processing circuits of various electronic products, fulfilling key functions such as power filtering, signal coupling, and bypassing. During the production process, they undergo quality inspections, including pin soldering, defect detection of external packaging, and electrical performance testing.

[0003] Patent announcement number: CN120009186A discloses a device for detecting appearance defects of aluminum electrolytic capacitors, including: a device base and two first support plates, two first transmission belts are arranged between the two first support plates, push rollers are arranged on the outer sides of the first transmission belts, support frames are installed on the corresponding sides of the two first support plates, a first detection box is fixedly installed on the top of the device base, and multiple first laser probes are arranged on the inner side of the first detection box; it also includes: a transfer mechanism for detecting the pins of the capacitor, and the transfer mechanism is installed on the top of the device base.

[0004] The existing technology has at least the following problems during use:

[0005] The long support plate and the first transmission belt result in a low screening efficiency of the detection conveyor during continuous production detection. Summary of the Invention

[0006] The present invention provides a multi-station aluminum electrolytic capacitor production testing device, which is used to solve the technical problem in the prior art that the long-distance support plate and the first transmission belt lead to low screening efficiency of the testing device during continuous production testing.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A multi-station detection equipment for aluminum electrolytic capacitor production, comprising: an annular detection frame having an input port and an output port, the annular detection frame being provided with a roller conveyor belt; a drive chain plate being provided on the outside of the annular detection frame; fixed claws, the fixed claws being provided at equal intervals on the drive chain plate, the inner side of which is provided with a limiting groove matching the capacitor shape, for clamping the capacitor and driving it to move along the outside of the annular detection frame; a supply unit being provided at the input port of the annular detection frame; multi-station detection units being provided at intervals along the outside of the annular detection frame; a screening drive unit being provided correspondingly on the multi-station detection unit, the screening port being preset in the middle of the annular detection frame, and the screening drive unit pushing the screened workpieces into the screening port.

[0009] Furthermore, the multi-station detection unit includes: a support frame installed on the annular detection frame; a detection circuit module installed on the support frame; a cylinder drive mechanism having a drive part and a lifting part; and a detection probe installed on the lifting part.

[0010] Furthermore, the multi-station detection unit also includes: an adjustable bracket having two adjustment rails and a fixed part that move along a first preset direction and a second preset direction; a visual sensor installed on the fixed part; and an annular light source fixedly installed on the fixed part, the annular light source being arranged around the visual sensor.

[0011] Furthermore, the screening drive unit includes: a pneumatic telescopic rod, installed on the support frame; a wedge-shaped push block, installed on the pneumatic telescopic rod; a photoelectric sensor, a mounting slot is provided on the support frame, and the photoelectric sensor is used to detect the position information of the workpiece; a sliding guide plate, distributed along the circumference of the annular detection frame, and the sliding guide plate is located on the inner side of the annular detection frame, and the sliding guide plate forms the screening port; a waste collection box, located directly below the screening port.

[0012] Furthermore, it also includes: a limit rod, a rotation groove is provided on the fixed claw, the limit rod is rotatably installed in the rotation groove, and the limit rod has a contact rod and a blocking rod; a locking assembly, a fixed groove is provided in the rotation groove, the locking assembly is rotatably installed in the fixed groove, and an elastic part is provided on the locking assembly, and the locking assembly and the contact rod limit the rotation of the limit rod.

[0013] Furthermore, it also includes: a servo motor fixedly mounted on the annular detection frame; a sprocket assembly having a driving wheel and a plurality of driven wheels, the driving wheel being transmission-connected to the servo motor, and the plurality of driven wheels being spaced apart and distributed around the circumference of the annular detection frame.

[0014] Furthermore, it also includes: a control center, installed on the annular detection frame, the control center is communicatively connected with the detection circuit module, the cylinder drive mechanism, the detection probe, the adjustable bracket, the visual sensor, the annular light source, the pneumatic telescopic rod, the photoelectric sensor, and the servo motor; a cleaning component, installed on the output port, for cleaning the limiting groove.

[0015] The present invention provides a multi-station detection device for aluminum electrolytic capacitor production, which has the following beneficial effects:

[0016] The ring-shaped inspection frame is used to reduce the layout area occupied, the multi-station inspection unit provides multi-standard inspection processes to improve inspection efficiency, and a screening unit and output port are provided to directly complete the screening of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic structural diagram of a multi-station aluminum electrolytic capacitor production testing device provided by an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram from another angle of a multi-station aluminum electrolytic capacitor production testing device provided by an embodiment of the present invention;

[0020] Figure 3 A schematic structural diagram of a multi-station aluminum electrolytic capacitor production detection device provided by an embodiment of the present invention from another angle;

[0021] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at A1 in the middle;

[0022] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at B1 in the middle;

[0023] Figure 6 for Figure 3 Schematic diagram of the enlarged structure at C1 in the middle;

[0024] Figure 7 A schematic diagram of the internal structure of the fixing claw provided in an embodiment of the present invention.

[0025] In the figure: 10-annular detection frame; 21-driving chain plate; 22-fixed claw; 23-limiting groove; 30-supply unit; 41-support frame; 42-detection circuit module; 43-driving part; 44-lifting part; 45-detection probe; 51-visual sensor; 52-annular light source; 61-wedge-shaped push block; 62-pneumatic telescopic rod; 11-sliding guide plate; 12-waste collection box; 24-limiting rod; 25-locking assembly. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installation," "connection," and "connection" should be understood in a broad sense. For example, they can refer to welding, bolting, or riveting; fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] Example:

[0031] like Figures 1 to 7 As shown, this embodiment provides a multi-station detection equipment for aluminum electrolytic capacitor production, including: an annular detection frame 10, having an input port and an output port, and a roller conveyor belt is provided on the annular detection frame 10; a driving chain plate 21, which is arranged on the outside of the annular detection frame 10; fixed claws 22, the fixed claws 22 are arranged on the driving chain plate 21 at equal intervals, and the inner side of the fixed claws 22 is provided with a limiting groove 23 matching the shape of the capacitor, which is used to clamp the capacitor and drive it to move along the outside of the annular detection frame 10; a supply unit 30, which is arranged at the input port of the annular detection frame 10; multi-station detection units, which are arranged at intervals along the outside of the annular detection frame 10; a screening drive unit, which is correspondingly arranged on the multi-station detection unit, and a screening port is preset in the middle of the annular detection frame 10, and the screening drive unit pushes the screened workpiece into the screening port.

[0032] In this embodiment, the annular detection frame 10 adopts a high-strength aluminum alloy frame structure in the shape of a horizontal ring and is fixed to the base of the equipment by a plurality of adjustable anchor bolts to ensure stability during the detection process. The input port is located on the upper side of the annular detection frame 10, and the output port is located on one side of the input port and is provided with a corresponding output transport structure to form a continuous quality inspection output path for the material. The roller conveyor belt is composed of a plurality of polytetrafluoroethylene rollers with a diameter of 30 mm, which are evenly distributed on the inner edge of the annular detection frame 10. The rollers are mounted on the bracket through bearings and can rotate freely, playing the role of auxiliary support for the capacitor and reducing the friction between the capacitor and the detection frame; the drive chain The plate 21 is a stainless steel chain structure, which is installed around the outside of the annular detection frame 10. The distance between its outer edge and the annular detection frame 10 is maintained at 50mm. The drive chain plate 21 is connected to the servo motor through sprockets at both ends to achieve closed-loop transmission. The fixed claws 22 are installed on the drive chain plate 21 at equal intervals. Each claw is made of elastic steel. The inner limiting groove 23 is designed based on the cylindrical shape of common aluminum electrolytic capacitors. The curvature of the groove is precisely matched to the outer diameter of the capacitor to prevent the capacitor from shaking or shifting during transmission. The supply unit 30 is installed above the input port of the annular detection frame 10 and consists of a vibrating loading tray and a linear pushing mechanism. The vibrating loading tray is mounted on the bracket via rubber shock-absorbing pads. It can arrange the randomly stacked capacitors into a uniform direction through vibration. The linear pushing mechanism uses a pneumatic push rod that presses downward into the claw along a plane perpendicular to the chain plate structure. The front end of the push rod is equipped with a rubber push head that matches the shape of the bottom surface of the capacitor to ensure that the capacitor is not damaged during the pushing process.

[0033] Further, if Figures 1 to 7 As shown, the multi-station detection unit includes: a support frame 41, installed on the annular detection frame 10; a detection circuit module 42, installed on the support frame 41; a cylinder drive mechanism, having a drive part 43 and a lifting part 44; and a detection probe 45, installed on the lifting part 44.

[0034] In this embodiment, the support frame 41 is vertically fixed to the support table outside the annular detection frame 10 by bolts, and the detection circuit module 42 is integrated on a panel, which is equipped with detection equipment such as LCR bridge and leakage current tester, which can perform comprehensive detection of the electrical properties of the capacitor; the driving part 43 of the cylinder driving mechanism is a cylinder body, which is horizontally installed on the support frame 41 through a U-shaped bracket, and the lifting part 44 is a cylinder piston rod. An insulating ceramic bracket is installed on the top of the piston rod, and the detection probe 45 is fixed on the ceramic bracket. When the capacitor moves to the detection station with the driving chain plate 21, the cylinder driving part 43 is ventilated, pushing the lifting part 44 to drive the detection probe 45 to descend, and the probe contacts the capacitor pin for electrical performance detection. After the detection is completed, the cylinder resets and the probe rises and separates from the pin.

[0035] Further, if Figures 1 to 7As shown, the multi-station detection unit also includes: an adjustable bracket, having two adjustment rails and a fixed part that move along a first preset direction and a second preset direction; a visual sensor 51, installed on the fixed part; an annular light source 52, fixedly installed on the fixed part, and the annular light source 52 is arranged around the visual sensor 51.

[0036] In this embodiment, the first preset direction is the normal direction of the annular detection frame 10, the second preset direction is the tangent direction of the annular detection frame 10, and the second preset direction is perpendicular to the first preset direction. The adjustable bracket is composed of two mutually perpendicular linear slide rails. The first preset direction slide rail is horizontally installed on the support frame 41, and the second preset direction slide rail is vertically installed on the slider of the first preset direction slide rail to form a two-dimensional adjustment structure. The fixed part is a mounting plate, which is fixed to the slider of the second preset direction slide rail by bolts and can be precisely adjusted in two directions; the visual sensor 51 uses an industrial camera, which is fixed at the center position of the fixed part through a flange, and the lens is aligned with the pins of the capacitor from the outside to the inside. The annular light source 52 uses an LED diffuse reflection light source, which is fixed on the fixed part in a circular shape and surrounds the lens of the visual sensor 51 to ensure that the visual sensor 51 obtains a clear image. The operator can fine-tune the positions of the visual sensor 51 and the annular light source 52 by adjusting the track according to the detection requirements of capacitors of different specifications to ensure detection accuracy.

[0037] Further, if Figures 1 to 7 As shown, the screening drive unit includes: a pneumatic telescopic rod 62, installed on the support frame 41; a wedge-shaped push block 61, installed on the pneumatic telescopic rod 62; a photoelectric sensor, a mounting slot is provided on the support frame 41, and the photoelectric sensor is used to detect the position information of the workpiece; a sliding guide plate 11, distributed along the circumference of the annular detection frame 10, and the sliding guide plate 11 is located on the inner side of the annular detection frame 10, and the sliding guide plate 11 forms a screening port; a waste collection box 12, located directly below the screening port.

[0038] In this embodiment, a pneumatic telescopic rod 62 is mounted horizontally on the support frame 41 of the multi-station inspection unit or the support panel of the annular inspection frame 10, and is fixedly connected to the support frame 41 via a bracket. A wedge-shaped push block 61 is made of wear-resistant stainless steel and bolted to the front end of the pneumatic telescopic rod 62. The wedge angle of the push block is designed to be 45°, ensuring that defective products can be smoothly ejected. A photoelectric sensor is installed in a U-shaped mounting slot on the side of the support frame 41. The mounting slot is fixed in the slot by screws, with its detection head aligned with the fixed claw 22 on the drive chain plate 21. When the capacitor moves with the fixed claw 22 to the screening station, the photoelectric sensor detects the capacitor's position and transmits the signal to the control center. The sliding guide plate 11 is formed by bending stainless steel sheet and installed along the inner circumference of the annular inspection frame 10, forming a funnel-shaped screening opening. The inner surface of the guide plate is polished to reduce friction when defective products slide down. The waste collection box 12 is located directly below the screening opening and adopts a drawer-like structure to facilitate the collection and removal of defective products.

[0039] Furthermore, if Figures 1 to 7 As shown, it also includes: a limit rod 24, a rotation groove is provided on the fixed claw 22, the limit rod 24 is rotatably installed in the rotation groove, and the limit rod 24 has a contact rod and a blocking rod; a locking assembly 25, a fixed groove is provided in the rotation groove, the locking assembly 25 is rotatably installed in the fixed groove, and an elastic part is provided on the locking assembly 25, and the locking assembly 25 and the contact rod limit the rotation of the limit rod 24.

[0040] In this embodiment, the limit rod 24 is mounted within the rotating groove via a pin. The contact rod and the stop rod on the limit rod 24 form an L-shaped structure. The contact rod is used to contact the surface of the capacitor to assist in positioning, and the stop rod is used to cooperate with the locking assembly 25 to lock the limit rod 24. The locking assembly 25 is mounted in a fixed groove within the rotating groove and connected to the fixed groove via a rotating shaft. The elastic member is a small torsion spring that is sleeved on the rotating shaft and provides a reset torque for the locking assembly 25. When the limit rod 24 is rotated to the working position, the locking assembly 25 engages with the stop rod under the action of the elastic member, limiting the rotation of the limit rod 24 and ensuring that the capacitor remains stable during transmission and testing. When unlocking, the wedge-shaped push block 61 contacts the reset top block of the locking assembly 25, restoring the locking assembly 25 to the contact and stop rod. As the wedge-shaped push block 61 pushes the capacitor, the workpiece is released from the fixed claw 22.

[0041] Furthermore, if Figures 1 to 7 As shown, it also includes: a servo motor fixedly mounted on the annular detection frame 10; a sprocket assembly having a driving wheel and a plurality of driven wheels, the driving wheel is transmission-connected to the servo motor, and the plurality of driven wheels are spaced apart and distributed around the annular detection frame 10.

[0042] In this embodiment, a servo motor is fixedly mounted on the bottom of the annular detection frame 10, near the input port, via a shock-absorbing base. The servo motor's output shaft is connected to the drive wheel of the sprocket assembly via an elastic coupling. Multiple driven wheels are evenly distributed around the circumference of the annular detection frame 10 and mounted on a bracket via bearing blocks. The number of driven wheels is determined by the circumference of the annular detection frame 10 and the length of the drive chain plate 21. The drive and driven wheels are driven by a chain transmission using a precision roller chain, which offers high transmission efficiency and reliability. The servo motor precisely adjusts its speed based on commands from the control center, thereby controlling the operating speed of the drive chain plate 21 and ensuring that the capacitor's residence time at each detection station meets the detection requirements.

[0043] Further, if Figures 1 to 7 As shown, it also includes: a control center, installed on the annular detection frame 10, the control center is connected to the detection circuit module 42, the cylinder drive mechanism, the detection probe 45, the adjustable bracket, the visual sensor 51, the annular light source 52, the pneumatic telescopic rod 62, the photoelectric sensor, and the servo motor; a cleaning component, installed on the output port, for cleaning the limit groove 23.

[0044] In this embodiment, the control center adopts an industrial-grade PLC control cabinet, which is installed on the side of the annular detection frame 10 through a bracket. The control cabinet integrates control components such as a PLC controller, a touch screen, a relay, and a frequency converter. The control center is connected to the detection circuit module 42, the cylinder drive mechanism, the detection probe 45, the adjustable bracket, the visual sensor 51, the annular light source 52, the pneumatic telescopic rod 62, the photoelectric sensor, the servo motor, and other equipment through Ethernet and RS485 communication interfaces to realize automatic control and data acquisition of the entire detection equipment. The control center coordinates and controls the actions of each actuator based on the signals fed back by each sensor to ensure the efficiency and accuracy of the detection process. The cleaning component is installed at the output position of the annular detection frame 10 and consists of a rotating brush and a dust collection device. The rotating brush is driven by a motor and is installed on a bracket that can be adjusted up and down. The bristles of the brush can penetrate into the limiting groove 23 of the fixed claw 22 to remove debris and dust remaining in the groove. The dust collecting device is located below the rotating brush and is connected to the vacuum cleaner through a pipe. It can promptly suck away the debris cleaned by the brush, keep the fixed claws 22 clean, and ensure the positioning accuracy of the capacitor.

[0045] In summary, in the process of quality inspection and production using a multi-station aluminum electrolytic capacitor production inspection equipment, the closed-loop transmission structure of the annular inspection frame 10 and the drive chain plate 21 is used to realize continuous and automated inspection of the capacitor, thereby reducing the space occupied by the long-distance linear inspection production line; the multi-station inspection unit integrates electrical performance and visual inspection functions, thereby improving the applicability of the multi-dimensional indicator combination inspection process; and the independent signal linkage trigger mechanism of the screening drive unit is used to achieve accurate elimination of defective products and a reduction in the error rate.

[0046] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A multi-station aluminum electrolytic capacitor production testing equipment, characterized in that: include: An annular detection frame (10) has an input port and an output port, and a roller conveyor belt is provided on the annular detection frame (10); A driving chain plate (21) is arranged outside the annular detection frame (10); Fixed claws (22), the fixed claws (22) are arranged on the driving chain plate (21) at equal intervals, and the inner side of the fixed claws (22) is provided with a limiting groove (23) matching the shape of the capacitor, for clamping the capacitor and driving it to move along the outer side of the annular detection frame (10); A supply unit (30) is provided at an input port of the annular detection frame (10); Multi-station detection units are arranged at intervals along the outer side of the annular detection frame (10); The screening drive unit is correspondingly arranged on the multi-station detection unit. A screening port is preset in the middle of the annular detection frame (10). The screening drive unit pushes the screened workpieces into the screening port.

2. The multi-station detection equipment for aluminum electrolytic capacitor production according to claim 1, wherein the multi-station detection unit comprises: A support frame (41) is mounted on the annular detection frame (10); A detection circuit module (42) is mounted on the support frame (41); A cylinder drive mechanism having a drive portion (43) and a lifting portion (44); A detection probe (45) is mounted on the lifting portion (44).

3. The multi-station aluminum electrolytic capacitor production testing equipment according to claim 2, wherein the multi-station testing unit further comprises: An adjustable bracket having two adjustment rails and a fixing portion that move along a first preset direction and a second preset direction; A visual sensor (51) is mounted on the fixing portion; An annular light source (52) is fixedly mounted on the fixing portion, and the annular light source (52) is arranged around the periphery of the visual sensor (51).

4. The multi-station aluminum electrolytic capacitor production testing equipment according to claim 3, wherein the screening drive unit comprises: A pneumatic telescopic rod (62) mounted on the support frame (41); A wedge-shaped push block (61) is mounted on the pneumatic telescopic rod (62); A photoelectric sensor, wherein a mounting slot is provided on the support frame (41), and the photoelectric sensor is used to detect position information of a workpiece; A sliding guide plate (11) is distributed along the circumference of the annular detection frame (10), and the sliding guide plate (11) is located on the inner side of the annular detection frame (10), and the sliding guide plate (11) is formed with the screening port; The waste collection box (12) is located directly below the screening port.

5. The multi-station aluminum electrolytic capacitor production testing equipment according to claim 4, further comprising: A limiting rod (24), wherein a rotation groove is provided on the fixed claw (22), the limiting rod (24) is rotatably installed in the rotation groove, and the limiting rod (24) has a contact rod and a blocking rod; A locking assembly (25) is provided in the rotating groove with a fixed groove, the locking assembly (25) is rotatably mounted in the fixed groove, an elastic member is provided on the locking assembly (25), and the locking assembly (25) and the contact rod limit the rotation of the limiting rod (24).

6. The multi-station aluminum electrolytic capacitor production testing equipment according to claim 5, further comprising: A servo motor fixedly mounted on the annular detection frame (10); The sprocket assembly comprises a driving wheel and a plurality of driven wheels, wherein the driving wheel is in transmission connection with the servo motor, and the plurality of driven wheels are distributed at intervals around the circumference of the annular detection frame (10).

7. The multi-station aluminum electrolytic capacitor production testing equipment according to claim 6, further comprising: a control center mounted on the annular detection frame (10), the control center being communicatively connected to the detection circuit module (42), the cylinder drive mechanism, the detection probe (45), the adjustable bracket, the visual sensor (51), the annular light source (52), the pneumatic telescopic rod (62), the photoelectric sensor, and the servo motor; A cleaning assembly is mounted on the output port and is used to clean the limiting groove (23).

Images