Core-through capacitor printing clamp

Abstract

The utility model discloses a feed-through capacitor printing clamp, which is used for clamping a ceramic substrate of a feed-through capacitor and comprises a hard bottom plate and an elastic soft cushion covered on the upper surface of the hard bottom plate, and a plurality of positioning columns arranged in order are arranged on the upper surface of the hard bottom plate. A protective sleeve arranged on the corresponding positioning column in a sleeving mode is arranged at the corresponding position of the soft cushion, the protective sleeve protrudes upwards out of the upper surface of the soft cushion, and the protective sleeve can be sleeved with the hole position corresponding to the ceramic base body. The utility model has the advantages that the ceramic substrate is protected, the printing precision is improved, the service life of the fixture is prolonged, and the fixture adapts to height difference in batch production.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic printing, in particular to a through-core capacitor printing fixture. Background Art

[0002] Feedthrough capacitors are essential components widely used in the electronics industry. The printing process is a critical step in their production, metallizing the ceramic surface to form electrodes. This step directly impacts the performance and quality of feedthrough capacitors, making precise control of the printing process crucial.

[0003] Traditional printing processes typically use hard metal fixtures to fix and position the ceramic substrate. While this method meets production needs to a certain extent, it also has several significant drawbacks:

[0004] 1. Due to the hard surface of the metal fixture, the ceramic edge is easily broken during the clamping process, which not only affects the appearance of the product, but may also cause the capacitor performance to deteriorate or fail.

[0005] 2. In mass production, it's common to print multiple ceramic substrates simultaneously. However, due to sintering process errors, there can be height variations of ±0.1mm between the individual ceramic substrates. The rigid base of the hard metal fixture is unable to accommodate this height variation, resulting in the lower ceramic substrates being misprinted or not printed at all, severely impacting the print quality.

[0006] Of course, there are currently printing fixtures made of silicone injection molding, but these also have the following problems: 1. The poor precision of silicone injection molding makes it difficult to ensure the dimensional stability of the fixture. This causes the product position to shift during the printing process, often resulting in linear printing defects (i.e., a certain line cannot be printed properly), affecting product quality. 2. The silicone positioning column is not strong enough and is prone to breaking during repeated use. Once the positioning column breaks, the entire fixture cannot be used and needs to be scrapped and replaced, increasing production costs.

[0007] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and the present invention is made based on this situation. Utility Model Content

[0008] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a through-core capacitor printing fixture that improves production efficiency and product quality. The device can improve printing accuracy and fixture service life while protecting the ceramic substrate and adapt to height differences in mass production.

[0009] The utility model is realized through the following technical solutions:

[0010] In order to solve the above technical problems, the utility model provides a through-core capacitor printing fixture for clamping the ceramic substrate of the through-core capacitor, including a hard base plate and an elastic soft pad covering the upper surface of the hard base plate, the upper surface of the hard base plate is provided with a number of neatly arranged positioning columns, and the corresponding positions of the soft pad are provided with protective covers that are sleeved on the corresponding positioning columns, and the protective covers protrude upward from the upper surface of the soft pad, and can allow the corresponding holes of the ceramic base to be sleeved on the protective covers.

[0011] In order to further solve the technical problem to be solved by the present invention, in a through-core capacitor printing fixture provided by the present invention, a through hole penetrating to the inner cavity of the corresponding protective cover is provided at a corresponding position on the lower surface of the soft pad.

[0012] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-core capacitor printing fixture, wherein the top end of the protective cover is an arc-shaped surface.

[0013] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-core capacitor printing fixture, in which the upper surface of the hard base plate is also provided with a plurality of positioning holes, and the corresponding positions of the soft pad are provided with positioning cores, which protrude downward from the lower surface of the soft pad and are inserted into the corresponding positioning holes.

[0014] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-core capacitor printing fixture, in which the upper surface of the hard base plate is provided with an installation groove for accommodating a soft pad, and each positioning column and positioning hole is located within the range of the installation groove.

[0015] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-core capacitor printing fixture, wherein the edge of the hard bottom plate is provided with a notch for hand gripping.

[0016] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-core capacitor printing fixture, wherein the edges or corners of the hard bottom plate are provided with mounting holes for mounting the hard bottom plate on a printing press.

[0017] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-hole capacitor printing fixture, wherein the hard bottom plate is an aluminum alloy plate.

[0018] In order to further solve the technical problem to be solved by the present invention, the present invention provides a through-hole capacitor printing fixture, wherein the soft pad is a silicone pad.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The fixture of this utility model consists of two core components: a hard base and a soft pad. The hard base provides rigid support for the entire fixture, while the soft pad, covering the upper surface of the hard base, provides the necessary flexibility to accommodate slight height variations in the ceramic substrate. This fixture design combines the advantages of hard and soft materials, protecting the ceramic substrate while improving printing accuracy and fixture life. It can also accommodate height variations in mass production, significantly enhancing the production efficiency and product quality of through-core capacitors. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0023] Figure 2 It is an exploded view of the utility model;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the cushion (reverse side). DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Please refer to Figures 1 to 3 This utility model provides a through-hole capacitor printing fixture for holding the ceramic substrate of through-hole capacitors. The fixture design of this embodiment combines the advantages of both hard and soft materials, improving printing accuracy and fixture life while protecting the ceramic substrate. It also adapts to the height differences encountered in mass production, significantly enhancing the production efficiency and product quality of through-hole capacitors.

[0027] As shown in the figure, the fixture mainly consists of two core components: a hard base plate 1 and a soft pad 2. The hard base plate 1 provides rigid support for the entire fixture, while the soft pad 2 covering the upper surface of the hard base plate 1 provides the necessary elasticity to accommodate the slight height differences of the ceramic substrate.

[0028] The upper surface of the hard base plate 1 is designed with several neatly arranged positioning posts 11. The arrangement of these positioning posts corresponds to the size and layout of the holes in the ceramic matrix of the through-core capacitor, ensuring the precise positioning of the ceramic matrix during the printing process. The soft pad 2 is designed with protective covers 21 at positions corresponding to the positioning posts 11, and the protective covers 21 are sleeved on the corresponding positioning posts 11. The corresponding holes of the ceramic matrix are sleeved on the protective covers 21. That is, the protective cover 21 mainly plays the role of positioning and fixing the ceramic matrix. The protective cover 21 has a certain degree of elasticity and flexibility, and can be deformed to a certain extent. It can adapt to the height differences in mass production, and ceramic substrates with slight height differences can be printed. The positioning posts 11 inside the protective cover 21 mainly serve the purpose of enhancing structural strength and extending the service life of the fixture, and also have the effect of improving printing accuracy and avoiding excessive dimensional accuracy errors.

[0029] To further optimize the function of the fixture, this embodiment also includes the following features:

[0030] ① The protective cover 21 fits over the positioning post 11 and protrudes upward from the upper surface of the cushion 2. A through-hole 211 is provided on the lower surface of the cushion 2, corresponding to the position of the protective cover 21. This design allows the positioning post 11 to pass through the protective cover 21 from bottom to top while maintaining the integrity of the cushion 2.

[0031] ② The top of the protective cover 21 is designed as an arcuate surface 212 (such as a hemispherical surface). This arcuate design can reduce sharp contact with the ceramic substrate, further reducing the risk of damage to the edge of the ceramic substrate.

[0032] ③ The upper surface of the rigid base 1 is also provided with several positioning holes 12. Positioning cores 22 are located at corresponding positions on the cushion 2. These cores 22 protrude downward from the lower surface of the cushion 2 and are inserted into the corresponding positioning holes 12. The primary function of these positioning holes 12 and cores 22 is to accurately position and secure the cushion 2 to the rigid base 1, providing additional positioning stability. The cores 22 are preferably hollow to reduce material consumption and airflow.

[0033] ④ To facilitate installation and replacement of the cushion 2, a mounting groove 13 is designed on the top surface of the hard base 1 to accommodate the cushion 2. The dimensions of the hard base 1 are compatible with the mounting groove 13. All positioning holes 12 and positioning posts 11 are located within the range of this mounting groove 13, ensuring a perfect fit between the cushion 2 and the hard base 1.

[0034] ⑤ Considering the convenience of operation, the edge of the hard base plate 1 is designed with a notch 14 for hand gripping. This design allows the operator to easily pick up and place the fixture, improving work efficiency.

[0035] 6. In order to install the fixture on the printing press, mounting holes 15 are designed at the edges or corners of the hard base plate 1. These mounting holes ensure the stability of the fixture during the printing process.

[0036] ⑦ In terms of material selection, the hard base plate 1 is made of aluminum alloy. Aluminum alloy has the advantages of light weight, high strength, and corrosion resistance, making it very suitable as the base plate material of the fixture.

[0037] ⑧ Soft pad 2 is made of silicone material. Silicone has excellent elasticity, high temperature resistance, and chemical corrosion resistance. It can adapt well to the printing environment and provide the necessary cushioning effect.

[0038] Through the above design, this new through-hole capacitor printing fixture successfully solves the problems existing in existing technologies. It effectively protects the ceramic substrate while accommodating the height differences encountered in mass production, while also ensuring printing accuracy and extending the fixture's service life. This innovative design will significantly improve through-hole capacitor production efficiency and product quality, making a significant contribution to the development of the industry.

Claims

1. A through-hole capacitor printing fixture for clamping the ceramic substrate of a through-hole capacitor, characterized by: The invention comprises a hard base plate (1) and an elastic soft pad (2) covering the upper surface of the hard base plate (1); the upper surface of the hard base plate (1) is provided with a plurality of neatly arranged positioning columns (11); corresponding positions of the soft pad (2) are provided with protective sleeves (21) sleeved on the corresponding positioning columns (11); the protective sleeves (21) protrude upward from the upper surface of the soft pad (2) and can be sleeved on the protective sleeves (21) for corresponding holes of a ceramic substrate.

2. The through-hole capacitor printing fixture according to claim 1, characterized in that: A through hole (211) is provided at a corresponding position on the lower surface of the soft cushion (2) and extends through the inner cavity of the corresponding protective cover (21).

3. The through-hole capacitor printing fixture according to claim 1, characterized in that: The top end of the protective sleeve (21) is an arc-shaped surface (212).

4. The through-hole capacitor printing fixture according to claim 1, characterized in that: The upper surface of the hard bottom plate (1) is also provided with a plurality of positioning holes (12), and the corresponding positions of the soft pad (2) are provided with positioning cores (22), and the positioning cores (22) protrude downward from the lower surface of the soft pad (2) and are inserted into the corresponding positioning holes (12).

5. The through-hole capacitor printing fixture according to claim 4, characterized in that: The upper surface of the hard bottom plate (1) is provided with a mounting groove (13) for accommodating the soft pad (2), and each positioning column (11) and positioning hole (12) is located within the range of the mounting groove (13).

6. The through-hole capacitor printing fixture according to claim 1, characterized in that: The edge of the hard bottom plate (1) is provided with a notch (14) for hand gripping.

7. The through-hole capacitor printing fixture according to claim 1, characterized in that: The edges or corners of the hard base plate (1) are provided with mounting holes (15) for mounting the hard base plate on a printing press.

8. The through-hole capacitor printing fixture according to claim 1, characterized in that: The hard bottom plate (1) is an aluminum alloy plate.

9. The through-hole capacitor printing fixture according to claim 1, characterized in that: The soft pad (2) is a silica gel pad.

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