MLCC high-temperature sintering anti-deformation clamp

Abstract

The utility model relates to the technical field of electronic component manufacturing, in particular to an MLCC high-temperature sintering anti-deformation clamp which comprises a sintering base, a sintering bearing plate is arranged in the sintering base, the sintering bearing plate is installed in an assembling frame, and an auxiliary limiting assembly is arranged on the sintering bearing plate. The auxiliary limiting assembly comprises a positioning seat, a limiting plate is arranged on one side of the positioning seat, the two ends of the limiting plate are connected with the positioning seat through springs, the two ends of the limiting plate are connected with the positioning seat through the springs, the positioning seat is provided with an adjusting stud, in the high-temperature sintering process of the MLCC, the springs can absorb stress generated by thermal expansion and cold contraction, and therefore the stability of the MLCC is improved. According to the limiting device, the limiting plate is arranged on the limiting plate, deformation or damage of the MLCC caused by stress concentration is avoided, meanwhile, the limiting force of the limiting plate to the MLCC can be flexibly adjusted through the adjusting stud, it is guaranteed that the MLCC cannot move during sintering, damage caused by too tight limiting is prevented, the product quality and stability are effectively improved, and the problems existing in a traditional clamp limiting mode are solved.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, specifically to a high-temperature sintering anti-deformation fixture for MLCCs. Background Technology

[0002] The MLCC high-temperature sintering anti-deformation fixture is a tool designed specifically for solving the deformation problem of MLCC (multilayer ceramic capacitor) during high-temperature sintering, and is used in the field of electronic component manufacturing.

[0003] Currently, existing MLCC high-temperature sintering fixtures on the market have many defects in their limiting and fixing methods. Some fixtures use rigid fixing structures, which cannot release the stress generated by thermal expansion and contraction of MLCCs under high-temperature environments, easily leading to problems such as cracks and deformation. On the other hand, some fixtures with elastic limiting functions have difficulty in accurately controlling the limiting force. Either the limiting is too loose, causing the MLCC to shift during sintering and affecting product consistency, or the limiting is too tight, which will also damage the MLCC. Therefore, this utility model proposes a high-temperature sintering anti-deformation fixture for MLCCs to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-temperature sintering anti-deformation fixture for MLCCs to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature sintering anti-deformation fixture for MLCCs, including a sintering base, a sintering support plate inside the sintering base, the sintering support plate being installed in an assembly frame, and an auxiliary limiting component being provided on the sintering support plate;

[0006] The auxiliary limiting component includes a positioning seat, a limiting plate on one side of the positioning seat, and the two ends of the limiting plate are connected to the positioning seat by springs. An adjusting stud is provided through the middle of the positioning seat, and the abutment at one end of the adjusting stud abuts against the back end of the limiting plate.

[0007] Preferably, the sintering support plate is provided with several sets of through holes, and the several sets of through holes are arranged in an array.

[0008] Preferably, the sintering support plate is provided with several sets of support blocks, which are vertically installed on the upper surface of the sintering support plate. The support blocks are made of a material that is resistant to high temperature and has a certain degree of elasticity.

[0009] Preferably, the inner walls of the cavities of the plurality of through holes are all threaded, and the support base is screwed onto these through holes by means of threaded engagement.

[0010] Preferably, the assembly frame is divided into two sets of cavities by a middle partition, and sintered bearing plates are installed in the two sets of cavities respectively.

[0011] Preferably, the middle partition of the assembly frame has perforations.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The two ends of the limiting plate are connected to the positioning seat through springs, and the positioning seat is equipped with adjusting studs. During the high-temperature sintering process of MLCC, the springs can absorb the stress caused by thermal expansion and contraction, and avoid stress concentration that could lead to deformation or damage of MLCC. At the same time, the limiting force of the limiting plate on MLCC can be flexibly adjusted by adjusting the studs, which can ensure that MLCC will not shift during sintering and prevent damage caused by excessively tight limiting. This effectively improves product quality and stability and solves the problems of traditional clamping limiting methods.

[0014] (2) The array of through holes and threaded cavity design on the sintered support plate, combined with the support base made of high temperature resistant and elastic material, can be installed by screwing on the thread. On the one hand, the installation position and number of the support base can be flexibly adjusted according to the specifications of the MLCC to achieve uniform support for the MLCC, disperse pressure, and prevent deformation caused by uneven force. On the other hand, the high temperature resistant and elastic support base can provide stable support in high temperature environment while playing a buffering role for the MLCC, further reducing the risk of deformation. In addition, this structure also enhances the versatility of the fixture and can be adapted to MLCCs of different specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0017] Figure 3 This is a schematic diagram of the sintering support plate installation structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the installation structure of the auxiliary limiting component of this utility model.

[0019] In the figure: 1. Sintering base; 2. Sintering support plate; 21. Through hole; 211. Thread; 3. Support base block; 4. Assembly frame; 41. Through hole; 5. Positioning seat; 51. Limiting plate; 52. Spring; 53. Adjusting stud. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a high-temperature sintering anti-deformation fixture for MLCCs, including a sintering base 1, a sintering support plate 2 inside the sintering base 1, the sintering support plate 2 being installed in an assembly frame 4, and an auxiliary limiting component on the sintering support plate 2; the auxiliary limiting component includes a positioning seat 5, a limiting plate 51 on one side of the positioning seat 5, the two ends of the limiting plate 51 being connected to the positioning seat 5 by springs 52, an adjusting stud 53 penetrating through the middle of the positioning seat 5, and a stop block at one end of the adjusting stud 53 abutting against the back end of the limiting plate 51, thereby... The limiting plate 51 is connected to the positioning seat 5 at both ends by springs 52, and the positioning seat 5 is provided with adjusting studs 53. During the high-temperature sintering process of MLCC, the springs 52 can absorb the stress generated by thermal expansion and contraction, avoiding stress concentration that could cause deformation or damage to the MLCC. At the same time, the limiting force of the limiting plate 51 on the MLCC can be flexibly adjusted by adjusting the studs 53, ensuring that the MLCC will not shift during sintering and preventing damage caused by excessively tight limiting, effectively improving product quality and stability, and solving the problems existing in traditional clamping limiting methods.

[0022] Please see Figure 3 as well as Figure 4 It is understood that the sintering support plate 2 is provided with several sets of through holes 21, which are arranged in an array. During the sintering process, the hot airflow needs to flow evenly around the sintering support plate 2 to ensure that the MLCC is heated evenly. The array distribution of the through holes 21 helps the hot airflow to form a relatively uniform flow path between the upper and lower surfaces of the sintering support plate 2, so that the heat can be transferred to the MLCC more efficiently and evenly, reducing the temperature gradient and improving the consistency of sintering quality.

[0023] Please see Figure 4 Understandably, the sintering support plate 2 is provided with several sets of support blocks 3. The support blocks 3 are vertically installed on the upper surface of the sintering support plate 2. The support blocks 3 are made of a high-temperature resistant and elastic material. During the high-temperature sintering process of MLCC, they can withstand the high-temperature environment, ensure the stability of their own structure and performance, and prevent deformation, melting or damage due to high temperature. Thus, they continuously provide reliable support for MLCC and ensure the smooth progress of the sintering process.

[0024] Please see Figure 2It is understood that the inner walls of the cavity of multiple through holes 21 are all machined with threads 211. The support base block 3 is screwed onto these through holes 21 through the threads 211. When in use, the support base block 3 can be flexibly selected on which through holes 21 to install according to the placement position and quantity requirements of MLCC, so as to realize the personalized support layout of MLCC and improve the adaptability of the fixture to MLCCs of different specifications and arrangements.

[0025] Please see Figure 2 The assembly frame 4 is divided into two sets of cavities by a middle partition. Each set of cavities is equipped with a sintering support plate 2. Dividing the assembly frame 4 into two sets of cavities allows two sintering support plates 2 to be placed simultaneously in a limited space, thereby increasing the number of MLCCs that can be sintered in a single batch and improving production efficiency.

[0026] Please see Figure 2 It is understood that the partition plate in the middle of the assembly frame 4 has perforations 41. During the high-temperature sintering process, the perforations 41 help the hot air flow between the two sets of cavities, so that the heat can be transferred to each part more evenly, reducing the difference in MLCC sintering quality caused by uneven heat distribution and improving product consistency.

[0027] In use, the assembly rack 4 is placed in a suitable position in the high-temperature sintering furnace. Since the assembly rack 4 is divided into two sets of cavities by a middle partition, sintering support plates 2 can be installed in each of the two sets of cavities according to production needs. Then, the installation position of the support base block 3 is determined according to the size and shape of the MLCC to be sintered. Because the sintering support plate 2 has through holes 21 arranged in a regular array, and the inner wall of the through hole 21 is machined with threads 211, the support base block 3, made of high-temperature resistant and elastic material, is screwed onto the corresponding through hole 21 using the threads 211. By adjusting the number and position of the support base blocks 3, a uniform support layout for the MLCC is achieved. The MLCC is placed on the surface of the support block 3 on the sintering support plate 2. At this time, the auxiliary limiting component is adjusted. The adjusting stud 53 is rotated, and the abutment at one end of the adjusting stud 53 pushes the limiting plate 51 to move. The limiting force of the limiting plate 51 on the MLCC is adjusted by adjusting the adjusting stud 53. The springs 52 at both ends of the limiting plate 51 play a buffering and adaptive adjustment role. This ensures that the MLCC is stably limited and absorbs stress when the MLCC expands and contracts during high-temperature sintering, preventing the MLCC from deforming or being damaged due to stress concentration. After the MLCC is placed and fixed in a limiting position, the fixture with the MLCC installed is placed into the high-temperature sintering furnace and the sintering program is started.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature sintering anti-deformation fixture for MLCCs, comprising a sintering base (1), wherein a sintering support plate (2) is provided inside the sintering base (1), the sintering support plate (2) is installed in an assembly frame (4), and an auxiliary limiting component is provided on the sintering support plate (2), characterized in that: The auxiliary limiting component includes a positioning seat (5), a limiting plate (51) is provided on one side of the positioning seat (5), the two ends of the limiting plate (51) are connected to the positioning seat (5) by springs (52), an adjusting stud (53) is provided through the middle of the positioning seat (5), and the abutment at one end of the adjusting stud (53) abuts against the back end of the limiting plate (51).

2. The MLCC high-temperature sintering anti-deformation fixture according to claim 1, characterized in that: The sintering support plate (2) is provided with several sets of through holes (21), and the several sets of through holes (21) are arranged in an array.

3. The MLCC high-temperature sintering anti-deformation fixture according to claim 2, characterized in that: The sintering support plate (2) is provided with several sets of support blocks (3), which are vertically installed on the upper surface of the sintering support plate (2). The support blocks (3) are made of a material that is resistant to high temperature and has a certain degree of elasticity.

4. The MLCC high-temperature sintering anti-deformation fixture according to claim 3, characterized in that: The inner walls of the cavity of the multiple through holes (21) are all machined with threads (211), and the support base block (3) is screwed onto these through holes (21) by the threads (211).

5. The MLCC high-temperature sintering anti-deformation fixture according to claim 1, characterized in that: The assembly frame (4) is divided into two sets of cavities by a middle partition plate, and sintered bearing plates (2) are installed in the two sets of cavities respectively.

6. The MLCC high-temperature sintering anti-deformation fixture according to claim 5, characterized in that: The assembly frame (4) has perforations (41) on the middle partition plate.

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