Clamp structure for automatic grouting process of thin film capacitor

Abstract

The invention discloses a clamp structure for an automatic grouting process of a thin film capacitor. Comprising at least two clamp bodies symmetrically arranged on a base, a thin film capacitor core is clamped between the two clamp bodies, each clamp body comprises a horizontal moving structure fixedly arranged above the base, a vertical moving structure is arranged at the upper end of each horizontal moving structure in a sliding mode, and the vertical moving structures are arranged on the base in a sliding mode. A rotating structure is fixedly arranged at the upper end of the vertical moving structure, a fixed arm is rotatably arranged at the upper end of the rotating structure, transverse adjusting structures are fixedly arranged at the upper end of the fixed arm, and a pouring structure is arranged at the upper end of any transverse adjusting structure. The thin-film capacitor automatic grouting fixture can solve the problems of a fixture used in an automatic grouting process of a thin-film capacitor in the prior art in the aspects of structural precision, specification adaptability, clamping stability and uniformity, dynamic sealing reliability, corrosion resistance and easy maintenance.

Description

Technical Field

[0001] This application relates to the field of electronic component manufacturing equipment technology, specifically to a fixture structure for an automated grouting process for thin-film capacitors. Background Technology

[0002] To improve production efficiency and automation, automated grouting equipment has been introduced into production lines. However, the fixtures used with such equipment are often rudimentary, typically employing simple V-grooves, flat plate clamps, or rigid sleeve structures. These existing fixtures have the following prominent problems: Poor adaptability: The fixed structure cannot flexibly adapt to cylindrical cores of different diameters and lengths. Frequent adjustments or replacements of fixtures are required when changing product specifications, affecting production continuity; Inadequate fixing effect: The clamping force provided by simple slots or pressure plates is unevenly distributed, making it difficult to achieve uniform and stable clamping of cylindrical cores in the circumferential direction. Under injection pressure, the core may rotate slightly or move axially, damaging the seal and causing slurry leakage; Insufficient sealing: The structural design does not fully consider the dynamic sealing fit between the core end face and the injection nozzle, which easily leads to slurry leakage at the interface, causing waste and polluting the equipment and the surrounding environment; Poor durability and maintainability: The fixtures are often made of ordinary metal materials, which are prone to corrosion and wear after long-term contact with various chemical slurries, increasing surface roughness. At the same time, the simple structure has cleaning dead corners, making it difficult to thoroughly clean slurry residues. After the residues solidify, they will affect the subsequent clamping accuracy and even damage the core surface, significantly reducing the reusability and lifespan of the fixtures.

[0003] To address the shortcomings of general-purpose clamps, some experimental improvements exist in existing technologies, such as adding manual adjustment screws to adjust the clamping width. However, these improvements do not specifically address the cylindrical geometry of the film capacitor core and the dynamic sealing requirements of the grouting process. Their structures often lack precision, the adjustment process is cumbersome, and they still cannot ensure precise and stable positioning of the core axis, nor can they maintain a constant and uniform radial constraint force and end-face sealing force throughout the grouting process. Therefore, the flow and uniformity of the grout within the core remain unreliable.

[0004] In summary, the fixtures used in the existing automatic grouting process for thin-film capacitors have significant defects in terms of structural accuracy, specification adaptability, clamping stability and uniformity, dynamic sealing reliability, corrosion resistance and ease of maintenance.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present invention, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this application discloses a fixture structure for an automated grouting process for thin-film capacitors, which can solve the problems existing in existing fixtures used in automated grouting processes for thin-film capacitors in terms of structural accuracy, specification adaptability, clamping stability and uniformity, dynamic sealing reliability, corrosion resistance and ease of maintenance.

[0007] To achieve the above objectives, this application provides the following technical solution: A clamping structure for an automated grouting process for thin-film capacitors includes at least two clamping bodies symmetrically arranged on a base, with a thin-film capacitor core clamped between the two clamping bodies. Each clamping body includes a horizontally moving structure fixedly arranged above the base, a vertically moving structure slidably arranged at the upper end of the horizontally moving structure, a rotating structure fixedly arranged at the upper end of the vertically moving structure, a fixed arm rotatably arranged at the upper end of the rotating structure, a lateral adjustment structure fixedly arranged at the upper end of the fixed arm, and a grouting structure arranged at the upper end of any one of the lateral adjustment structures.

[0008] In a preferred embodiment, the horizontal moving structure includes a horizontal slide rail fixedly disposed at the upper end of the base and a horizontal cylinder fixedly disposed at the upper end of the base. The lower end of the vertical moving structure is slidably connected to the horizontal slide rail. The output end of the horizontal cylinder extends toward the film capacitor core and is fixedly connected to the vertical moving structure. The horizontal cylinder drives the vertical moving structure to move along the horizontal slide rail in the direction of clamping the film capacitor core.

[0009] In a preferred embodiment, the vertical moving structure includes a vertical cylinder, a horizontal moving structure that slides over the cylinder body of the vertical cylinder, and a rotating structure that extends upward and is fixed over the telescopic cylinder of the vertical cylinder.

[0010] In a preferred embodiment, the rotating structure includes a rotating seat fixed at the upper end of a vertically moving structure, a rotating shaft rotatably mounted on the rotating seat, a fixed arm fixedly mounted on the rotating shaft, and a torsion spring sleeved on the rotating shaft. The torsion spring controls the fixed arm to rotate in the direction of clamping the thin-film capacitor core.

[0011] In a preferred embodiment, the lateral adjustment structure includes a lateral slide rail fixedly disposed at the upper end of a fixed arm, a lateral cylinder fixedly disposed on the fixed arm, a clamping block slidably disposed on the lateral slide rail, the output end of the lateral cylinder extending toward and fixedly connecting to the clamping block towards the film capacitor core, and the lateral cylinder driving the clamping block to move along the lateral slide rail toward clamping the film capacitor core.

[0012] In a preferred embodiment, the clamping block is configured to have the same curved surface shape as the outer peripheral side of the clamping film capacitor core in the direction of clamping the film capacitor core.

[0013] In a preferred embodiment, the filling structure includes a feed inlet connected to the filling machine and a discharge outlet facing the direction of clamping the film capacitor core.

[0014] In a preferred embodiment, a drainage groove is provided on the base, and the drainage groove is located below the clamping film capacitor core.

[0015] This application discloses a fixture structure for an automated grouting process of thin-film capacitors, which has the following advantages: Achieving precise positioning and wide adaptability, the integrated horizontal, vertical, and lateral adjustment mechanism allows for precise control of clamping position and force, flexibly adapting to cylindrical cores of different specifications and ensuring their stable fixation at the filling center. Enhanced clamping stability and reliable sealing are achieved through a combination of flexible preload provided by torsion springs and rigid locking driven by cylinders, ensuring the clamping block's curved surface uniformly conforms to the core's outer circumference, effectively resisting filling impacts and preventing displacement and leakage.

[0016] This invention improves automation efficiency and maintenance convenience. Its overall structure facilitates integration into automated production lines, and its rapid programmable operation significantly enhances operational efficiency and consistency. Simultaneously, the drainage channel and modular design facilitate cleaning and maintenance, extending service life. This invention effectively solves the technical challenges of inaccurate positioning and unstable clamping in the grouting process, demonstrating significant advantages in improving product quality, production efficiency, and equipment durability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the upper end of the fixture body according to an embodiment of this application; Figure 3 This is a schematic diagram of the lower end of the fixture body according to an embodiment of this application; Figure 4 This is a schematic diagram of the base according to an embodiment of this application. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0021] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] This embodiment illustrates a clamping structure for an automated grouting process for film capacitors. The structure is mounted on the workbench or base 1 of the automated grouting production line, and its core comprises two symmetrically arranged clamping bodies. The two clamping bodies work together to clamp and position the film capacitor core from both sides.

[0023] Each fixture body is composed of multiple functional modules integrated from top to bottom, as follows: The horizontal moving structure 2 is fixed above the base 1. This structure mainly includes a pair of horizontal slide rails fixed parallel to the base 1 and a horizontal cylinder 21. The cylinder body of the horizontal cylinder 21 is fixedly installed on the base 1, and its piston rod output end extends towards the center position of the film capacitor core. The function of the horizontal moving structure 2 is to drive the upper component of the clamp to move a wide range in the horizontal direction, so as to achieve coarse positioning and stroke adjustment of the core to be clamped, thereby adapting to cores of different sizes.

[0024] The vertical moving structure 3 is slidably connected to the aforementioned horizontal moving structure 2. The main body of this structure is a vertical cylinder 31. The bottom of the vertical cylinder 31 is slidably engaged with the horizontal slide rail 22 via a slider, while the cylinder body is fixedly connected to the end of the piston rod of the horizontal cylinder 21. Therefore, the movement of the horizontal cylinder 21 can drive the entire vertical moving structure 3 to move synchronously along the horizontal slide rail 22. The piston rod of the vertical cylinder 31 extends vertically upwards. The vertical moving structure 3 provides vertical adjustment capability, which can be used to compensate for height differences at the core end face or for height adjustment in conjunction with the grouting process.

[0025] The rotating structure 4 is fixedly installed at the upper end of the vertical moving structure 3, that is, at the top of the piston rod of the vertical cylinder 31. This structure includes a rotating seat 41 fixed to the top of the piston rod. A rotating shaft 42 is rotatably supported within the rotating seat 41 via bearings, and a fixed arm is fixedly connected to the rotating shaft 42 and rotates accordingly. A pre-tensioned torsion spring is fitted onto the rotating shaft 42, which continuously applies an elastic torque, driving the fixed arm to rotate towards the film capacitor core. This design gives the clamp a certain degree of angular self-adaptation during clamping, ensuring that the clamping surface can more smoothly conform to the outer circumference of the cylindrical core.

[0026] The lateral adjustment structure 6 is fixedly mounted on the upper end of the fixed arm 5. It comprises a lateral slide rail 61 fixed to the upper end of the fixed arm 5 and a lateral cylinder 62. A clamping block is slidably connected to the lateral slide rail 61 via a slider. The cylinder body of the lateral cylinder 62 is fixed to the fixed arm 5, and its piston rod output end faces the core and is directly connected to the clamping block. The lateral cylinder 62 can drive the clamping block to perform precise micro-displacement movements along the lateral slide rail 61; this action is a key step in achieving final precision clamping and applying a stable clamping force.

[0027] The clamping block 8, as the terminal component that directly contacts and holds the film capacitor core, has its working surface facing the core specially machined into a curved surface that matches the shape of the outer peripheral side of the core. Preferably, this curved surface is an arc-shaped surface that matches the outer circle of the cylindrical core. This surface contact design can significantly increase the effective contact area, making the clamping force distribution more uniform. This not only avoids damage to the core film due to excessive local pressure, but also significantly enhances the overall stability of the clamping.

[0028] The injection structure 7 is integrated into one of the clamping bodies, typically located on or near the clamping block 8 on the corresponding side. This structure includes an inlet 71 for connecting to an external injection machine pipeline and an outlet 72 directly facing the center of the film capacitor core end face. The inlet 71 and outlet 72 are connected via an internal flow channel. When the clamp performs its clamping action, the outlet 72 must be precisely aligned with the predetermined injection point on the core end face.

[0029] A drainage channel 9 is formed on the surface of the base 1, located between the two clamp bodies and directly opposite the area below the clamped core. This drainage channel 9 is used to collect and divert residual grout that may accidentally drip or leak during the grouting process, helping to keep the work area clean and facilitating the centralized recycling and cleaning of grout, thereby avoiding contamination of the equipment.

[0030] The working principle and operation process of this embodiment are as follows: In the initial state, the two clamp bodies are in the open position driven by the horizontal cylinder 21. At this time, the cylindrical film capacitor core to be grouted is placed in the predetermined center area between the two clamp bodies.

[0031] First, coarse positioning and pre-clamping are performed. The horizontal cylinders 21 on both sides are driven synchronously, which moves the vertical moving structure 3 and all the components above it along the horizontal slide rail 22 toward the center until the clamping blocks 8 on both sides approach the two sides of the core.

[0032] The adaptive bonding stage then begins. During horizontal movement, thanks to the continuous torsional force applied by the torsion spring, the fixing arm 5 causes the clamping block 8 to tend to rotate towards the core. When the curved surface of the clamping block 8 contacts the outer circle of the core, under the flexible pressure provided by the torsion spring, the clamping block 8 can adaptively fine-tune its angle, allowing its curved surface to achieve initial bonding and wrapping with the outer circle of the core.

[0033] Next, precise positioning and final locking are performed. The two transverse cylinders 62 operate simultaneously, pushing the clamping block 8 along the transverse slide rail 61 to precisely feed it towards the core until a preset, stable rated clamping force is applied, thereby firmly and precisely fixing the core in the center position. At this time, the discharge port 72 of the clamping block 8 of the integrated filling structure 7 is accurately aligned with the center of the core end face.

[0034] Depending on the process requirements, the overall height of the fixture can be finely adjusted by activating the vertical cylinder 31 to ensure that the grouting process is in the optimal state.

[0035] Then, the grouting operation can be carried out. The external grouting machine injects insulating grout into the core, which has been firmly clamped, through the delivery pipeline, inlet 71, and outlet 72. Throughout the grouting process, the aforementioned multi-stage linkage and adaptive clamping mechanism can effectively counteract the fluid reaction force or equipment vibration generated during grout injection, completely preventing any displacement of the core and ensuring the sealing reliability of the grouting interface.

[0036] After the grouting process is completed, each cylinder moves in reverse sequence to release the clamp on the core. After the grouting core is removed, the exposed curved surfaces of the clamping block 8 and the drainage groove 9 can be easily cleaned and maintained. Finally, the entire clamping structure returns to its initial open state, ready for the next work cycle.

[0037] It should be noted that, in this document, relational terms are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Obviously, those skilled in the art will understand that the modules or steps of this application described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. Optionally, they can be implemented using computer-executable program code, thereby storing them in a storage device for execution by a computing device, or fabricating them separately as individual integrated circuit modules, or fabricating multiple modules or steps as a single integrated circuit module. This invention is not limited to any particular hardware and software combination.

[0039] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A fixture structure for an automated grouting process in thin-film capacitors, characterized in that, The device includes at least two clamping bodies symmetrically arranged on a base, clamping a thin-film capacitor core between the two clamping bodies. Each clamping body includes a horizontally moving structure fixedly arranged above the base, a vertically moving structure slidably arranged at the upper end of the horizontally moving structure, a rotating structure fixedly arranged at the upper end of the vertically moving structure, a fixed arm rotatably arranged at the upper end of the rotating structure, a lateral adjustment structure fixedly arranged at the upper end of the fixed arm, and an injection structure arranged at the upper end of any one of the lateral adjustment structures.

2. The fixture structure for an automated grouting process of a thin-film capacitor according to claim 1, characterized in that, The horizontal moving structure includes a horizontal slide rail fixedly mounted on the upper end of the base and a horizontal cylinder fixedly mounted on the upper end of the base. The lower end of the vertical moving structure is slidably connected to the horizontal slide rail. The output end of the horizontal cylinder extends toward the film capacitor core and is fixedly connected to the vertical moving structure. The horizontal cylinder drives the vertical moving structure to move along the horizontal slide rail in the direction of clamping the film capacitor core.

3. The fixture structure for an automated grouting process of a thin-film capacitor according to claim 1, characterized in that, The vertical moving structure includes a vertical cylinder, a horizontal moving structure that slides through the cylinder body of the vertical cylinder, and a rotating structure that extends upward and is fixedly connected to the telescopic cylinder of the vertical cylinder.

4. The fixture structure for an automated grouting process of a thin-film capacitor according to claim 1, characterized in that, The rotating structure includes a rotating seat fixed at the upper end of a vertically moving structure, a rotating shaft rotatably mounted on the rotating seat, a fixed arm fixedly mounted on the rotating shaft, and a torsion spring sleeved on the rotating shaft. The torsion spring controls the fixed arm to rotate in the direction of clamping the film capacitor core.

5. A fixture structure for an automated grouting process of a thin-film capacitor according to claim 1, characterized in that, The lateral adjustment structure includes a lateral slide rail fixed at the upper end of a fixed arm, a lateral cylinder fixed at the fixed arm, a clamping block slidably disposed on the lateral slide rail, and the output end of the lateral cylinder extending towards and fixedly connecting to the clamping block of the film capacitor core. The lateral cylinder drives the clamping block to move along the lateral slide rail in the direction of clamping the film capacitor core.

6. A fixture structure for an automated grouting process of a thin-film capacitor according to claim 5, characterized in that, The direction in which the clamping block faces the clamping film capacitor core is set to a curved surface with the same shape as the outer peripheral side of the clamping film capacitor core.

7. A fixture structure for an automated grouting process of a thin-film capacitor according to claim 1, characterized in that, The filling structure includes a feed inlet connected to the filling machine and a discharge outlet facing the direction of clamping the film capacitor core.

8. A fixture structure for an automated grouting process of a thin-film capacitor according to claim 1, characterized in that, A drainage groove is provided on the base, which is located below the clamping film capacitor core.

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