A ceramic product preventing a deformation spacer during firing

By using the main gasket plate body, the precise positioning structure of the limiting hole groove and the protruding position upright, and the automatic positioning system, the deformation problem of ceramic products during high-temperature firing process is solved, achieving stable support and precise gripping, and improving the dimensional accuracy of ceramic products and the performance of sensors.

CN224446331UActive Publication Date: 2026-07-03SIHUI KANGRONG NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SIHUI KANGRONG NEW MATERIAL CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Ceramic products are prone to deformation during high-temperature firing due to uneven stress distribution and inconsistent thermal expansion coefficients, which affects dimensional accuracy and sensor performance.

Method used

The system employs a precise positioning structure that combines the main gasket plate body with the limiting hole slots and protruding uprights. It also incorporates an automatic positioning system with an electromagnetic inner block, limiting springs, and an outwardly pushable horizontal plate. Furthermore, it features a heat-insulated and high-temperature resistant inner frame and a flexible support composite layer to achieve stable support and precise gripping of ceramic products.

Benefits of technology

It effectively prevents ceramic products from deforming during the firing process, reduces dimensional deviations and geometric tolerances, improves the installation accuracy and reliability of sensors, and enhances production efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a prevent ceramic product firing deformation gasket relates to the field of auxiliary gasket, including main gasket total board body, the upper end of main gasket total board body is equipped with several limit hole grooves, and the upper end of main gasket total board body is placed and waits to process semi -finished product body single adaptation pad block, and the outside of waiting to process semi -finished product body single adaptation pad block is equipped with a plurality of processing semi -finished product body location jack, and the lower end of waiting to process semi -finished product body single adaptation pad block is fixedly connected with a plurality of convex position stand, and a plurality of convex position stand extends to corresponding limit hole groove, and the main gasket total board body of this design is through the cooperation of limit hole groove and pad block's convex position stand, realizes accurate positioning and stable support to ceramic semi -finished product, makes the product keep attitude stable when high -temperature sintering, reduces the risk of size deviation and shape tolerance out of limit, avoids the deformation problem of the unstable support in the sintering process.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary gaskets, and in particular to a gasket for preventing ceramic products from deforming during firing. Background Technology

[0002] Against the backdrop of rapid development and intelligent upgrading in the automotive industry, automotive sensors, as core components for vehicles to perceive their environment and regulate their operating status, directly impact vehicle safety, fuel economy, and reliability. Functional ceramics, with their excellent electromagnetic properties such as insulation, dielectric properties, semiconductor properties, piezoelectricity, and magnetic permeability, as well as high elastic modulus, low hysteresis, outstanding fatigue resistance, long-term stability, and corrosion resistance, occupy a crucial position in the manufacturing of sensitive elements for automotive sensors.

[0003] A Chinese patent (CN212903609U) discloses an outdoor ceramic sensor, comprising a temperature sensor body and a limiting band. The outer surface of the temperature sensor body has a slot, thereby changing the distance between the temperature sensor body and the locking mechanism, reducing the impact of the surrounding space of the electronic device on the installation of the outdoor ceramic sensor, facilitating the installation of the outdoor ceramic sensor, and locking the position of the limiting band to prevent it from loosening. This ensures that the temperature sensing device of the temperature sensor body is in close contact with the surface of the electronic device, resulting in higher measurement accuracy and better application prospects.

[0004] Ceramic products face severe deformation problems during high-temperature firing. Due to the unique physical properties of ceramic materials, uneven internal stress distribution and inconsistent coefficients of thermal expansion during sintering can easily lead to dimensional deviations, exceeding form and position tolerances, and tilt angle deformation. This is especially true for ceramic components used in automotive sensors, where dimensional accuracy requirements are extremely high; even minor deformations can cause sensor performance degradation or even failure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a gasket to prevent ceramic products from deforming during firing, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a main gasket assembly body, with several limiting holes and slots at the upper end of the main gasket assembly body. A separate adapter pad for the semi-finished product body to be processed is placed at the upper end of the main gasket assembly body. Multiple positioning holes for the semi-finished product body are provided on the outer side of the separate adapter pad for the semi-finished product body to be processed. Multiple protruding uprights are fixedly connected to the lower end of the separate adapter pad for the semi-finished product body to be processed, extending into corresponding limiting holes and slots. An external auxiliary frame is fixedly connected to the outer end of the main gasket assembly body. The auxiliary frame has symmetrical side storage compartments at both ends. The side storage compartments are located on the side of the individual adapter pad of the corresponding semi-finished product body. An electromagnetic inner block is fixedly connected to the inner wall of the side storage compartment. Limiting springs are symmetrically fixedly connected to the left and right ends of the electromagnetic inner block. An outwardly pushable horizontal plate is fixedly connected to the end of the two limiting springs away from the side storage compartment. A hole-shaped groove is opened at the upper end of the outwardly pushable horizontal plate. A laser sensor is fixedly connected to the upper end of the hole-shaped groove. The main pad plate body is equipped with a mechanical material picking arm. The mechanical material picking arm grabs the outer side of the corresponding semi-finished product body individual adapter pad.

[0007] As a further technical solution of this utility model, the mechanical material handling arm has a built-in laser receiver, and the laser receiver and the corresponding laser sensor cooperate with each other.

[0008] As a further technical solution of this utility model, both the front and rear ends of the push-out horizontal plate are fixedly connected with guide protruding sliders, and the front and rear inner walls of the side storage compartment are symmetrically provided with guide inner grooves.

[0009] As a further technical solution of this utility model, the outward pushable horizontal plate is slidably connected between the limiting spring and the corresponding guide inner slide groove, and the inner end of the side storage compartment is fixedly connected with a heat-insulated and high-temperature resistant inner compartment frame.

[0010] As a further technical solution of this utility model, the push-out horizontal plate is located inside the heat-insulating and high-temperature resistant inner frame, and the upper end of the main gasket plate body is fixedly connected with a reinforcing inner rib.

[0011] As a further technical solution of this utility model, the reinforcing inner rib is located in the middle of the main gasket plate body, and the outer ends of the main gasket plate body and the semi-finished product body to be processed are all fixedly connected with flexible support composite layers.

[0012] This utility model provides a gasket to prevent ceramic products from deforming during firing, which has the following advantages compared with the prior art:

[0013] 1. The main gasket plate of this design, through the cooperation of the limiting hole groove and the protruding upright of the gasket block, achieves precise positioning and stable support for the ceramic semi-finished product, so that the product maintains a stable posture during high-temperature sintering, reduces the risk of dimensional deviation and exceeding the form and position tolerance, and avoids deformation caused by unstable support during the firing process.

[0014] 2. In the side storage compartment of the external auxiliary frame of this design, the system consisting of electromagnetic inner block, limit spring and pushable horizontal plate realizes the automated and precise grasping of the mechanical material picking arm. Combined with the heat-insulated and high-temperature resistant inner compartment frame, reinforced inner rib and flexible support composite layer, the environmental adaptability and reliability of the device are improved. The flexible support composite layer absorbs the stress caused by thermal expansion and contraction of ceramic products through elastic buffering, reducing the risk of cracks and warping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main gasket plate body structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the side storage compartment structure of this utility model;

[0017] Figure 3 For the present utility model Figure 2 A schematic diagram of a partially truncated and enlarged section of the auxiliary frame structure;

[0018] Figure 4 This is a side view cross-sectional diagram of the flexible support composite layer of this utility model.

[0019] In the diagram: 1. Main gasket plate body; 2. Limiting hole groove; 3. Reinforcing inner rib; 4. Individually fitted pad for the semi-finished product body to be processed; 5. Protruding upright; 6. External auxiliary frame; 7. Side storage compartment; 8. Limiting spring; 9. Electromagnetic inner block; 10. Pushable horizontal plate; 11. Hole-shaped groove; 12. Laser sensor; 13. Guide inner slide groove; 14. Guide outer protruding slider; 15. Heat-insulated and high-temperature resistant inner compartment frame; 16. Flexible support composite layer; 17. Positioning insertion hole for the semi-finished product body. Detailed Implementation

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

[0021] Please see Figures 1-3This utility model provides a technical solution for preventing deformation of ceramic products during firing: it includes a main gasket plate body 1, with several limiting holes and grooves 2 at the upper end of the main gasket plate body 1, a separate adapter pad 4 for the semi-finished product body to be processed is placed at the upper end of the main gasket plate body 1, multiple positioning holes 17 for the semi-finished product body to be processed are opened on the outside of the separate adapter pad 4, multiple protruding uprights 5 are fixedly connected to the lower end of the separate adapter pad 4, and the multiple protruding uprights 5 extend into the corresponding limiting holes and grooves 2, and an outer auxiliary frame 6 is fixedly connected to the outer end of the main gasket plate body 1. The left and right ends of the 6 are symmetrically provided with side storage compartments 7. The side storage compartments 7 are located on the side of the corresponding semi-finished product body individual adapter pad 4. The inner wall of the side storage compartment 7 is fixedly connected with an electromagnetic inner block 9. The left and right ends of the electromagnetic inner block 9 are symmetrically fixedly connected with limit springs 8. The end of the two limit springs 8 away from the side storage compartment 7 is fixedly connected with an outward pushable horizontal plate 10. The upper end of the outward pushable horizontal plate 10 is provided with a hole-shaped groove 11. The upper end of the hole-shaped groove 11 is fixedly connected with a laser sensor 12. The main pad plate body 1 is equipped with a mechanical material picking arm. The mechanical material picking arm grabs the outer side of the corresponding semi-finished product body individual adapter pad 4.

[0022] Working principle: This solution uses the main gasket plate body 1 as the core load-bearing structure. Several limiting holes and slots 2 opened at the upper end of the main gasket plate body and several protruding uprights 5 at the lower end of the individual adapter pad 4 of the semi-finished product body form a precise positioning fit. In actual use, the ceramic semi-finished product to be processed is placed on the individual adapter pad 4 of the semi-finished product body to be processed. The protruding uprights 5 are inserted into the limiting holes and slots 2, so that the pad 4 is stably fixed on the main gasket plate body 1, restricting the horizontal displacement of the pad 4 and providing a stable support foundation for the firing of ceramic products. At the same time, the multiple semi-finished product body positioning holes 17 opened on the outside of the individual adapter pad 4 of the semi-finished product body to be processed can be used to insert positioning pins and other components to further fix the ceramic semi-finished product and prevent it from shifting during the firing process.

[0023] like Figures 2-4 As shown, the mechanical material handling arm has a built-in laser receiver, and the laser receiver and the corresponding laser sensor 12 cooperate with each other. The front and rear ends of the pushable horizontal plate 10 are fixedly connected with guide convex sliders 14. The front and rear inner walls of the side storage compartment 7 are symmetrically provided with guide inner slide grooves 13. The pushable horizontal plate 10 is slidably connected to the corresponding guide inner slide groove 13 through the limit spring 8. The inner end of the side storage compartment 7 is fixedly connected with a heat-insulated and high-temperature resistant inner compartment frame 15. The pushable horizontal plate 10 is located inside the heat-insulated and high-temperature resistant inner compartment frame 15. The upper end of the main gasket plate body 1 is fixedly connected with a reinforcing inner rib 3. The reinforcing inner rib 3 is located in the middle of the main gasket plate body 1. The outer ends of the main gasket plate body 1 and the separately adapted pad block 4 of the semi-finished product body are both fixedly connected with a flexible support composite layer 16.

[0024] Working principle: The outer auxiliary frame 6 is fixedly connected to the outer end of the main gasket plate body 1. Side storage compartments 7 are symmetrically arranged at the left and right ends. The electromagnetic inner block 9, the limiting spring 8, and the pushable horizontal plate 10 fixed on the inner wall of the main gasket plate body 1 constitute an automatic positioning auxiliary system. When the mechanical material handling arm needs to grab the semi-finished product body to be processed and individually fit the pad 4, the electromagnetic inner block 9 is energized to generate electromagnetic force, which pushes the pushable horizontal plate 10 to overcome the elastic force of the limiting spring 8 and slide outward along the guide inner slide groove 13 on the inner wall of the side storage compartment 7. The guide outer convex sliders at the front and rear ends of the pushable horizontal plate 10 14 slides in the guide groove 13 to ensure stable sliding process and accurate direction. After the outward push plate 10 slides into place, the laser sensor 12 fixed at the upper hole groove 11 cooperates with the laser receiver built into the mechanical picking arm. The laser sensor 12 emits a laser signal, and the laser receiver of the mechanical picking arm receives the signal. By calculating the time difference, angle and other parameters of the signal, the mechanical picking arm can accurately determine its relative position and posture with the semi-finished product body to be processed, and thus achieve accurate gripping of the outer side of the pad 4.

[0025] The working principle of this utility model is as follows: This solution uses the main gasket plate body 1 as the core load-bearing structure. Several limiting slots 2 on its upper end and multiple protruding uprights 5 on the lower end of the individually fitted pad 4 of the semi-finished product body form a precise positioning fit. In actual use, the ceramic semi-finished product is placed on the individually fitted pad 4, and the protruding uprights 5 are inserted into the limiting slots 2, so that the pad 4 is stably fixed on the main gasket plate body 1, restricting the horizontal displacement of the pad 4 and providing a stable support foundation for the firing of ceramic products. Simultaneously, multiple positioning holes 17 on the outside of the individually fitted pad 4 can be used to insert positioning pins and other components to further fix the ceramic semi-finished product and prevent it from shifting. During the firing process, a displacement occurs. The outer auxiliary frame 6, which is fixedly connected to the outer end of the main gasket plate body 1, has symmetrically arranged side storage compartments 7 at both ends. The electromagnetic inner block 9, the limiting spring 8, and the pushable horizontal plate 10 fixed on the inner wall of the electromagnetic inner block 9 constitute an automatic positioning auxiliary system. When the mechanical picking arm needs to grab the semi-finished product body to be processed and individually fit the pad 4, the electromagnetic inner block 9 is energized to generate electromagnetic force, which pushes the pushable horizontal plate 10 to overcome the elastic force of the limiting spring 8 and slide outward along the guide inner slide groove 13 on the inner wall of the side storage compartment 7. The guide outer protruding sliders 14 at the front and rear ends of the pushable horizontal plate 10 slide in the guide inner slide groove 13 to ensure that the sliding process is stable and the direction is accurate. After the pushable horizontal plate 10 slides into place, the laser sensor 12 fixed at the upper hole groove 11 and the mechanical picking arm... The laser receiver built into the material arm works in conjunction with the laser sensor 12, which emits a laser signal. The laser receiver of the mechanical material arm receives the signal. By calculating parameters such as the time difference and angle of the signal, the mechanical material arm can accurately determine its relative position and posture with the individually adapted pad 4 of the semi-finished product body to be processed, thereby achieving accurate gripping of the outer side of the pad 4. During the entire operation, the heat-insulating and high-temperature resistant inner frame 15 fixed at the inner end of the side storage compartment 7 can effectively isolate the high temperature during the firing process, protect the electromagnetic inner block 9, limit spring 8 and other components from the high temperature, ensure their stable performance and extend their service life. The reinforcing inner rib 3 fixed at the upper middle position of the main pad plate body 1 enhances the structural strength and rigidity of the main pad plate body 1, making it more stable when bearing ceramics. The semi-finished product and pad 4 are not easily deformed, ensuring the stability of the entire support structure. In addition, the flexible support composite layer 16, which is individually adapted to the outer end of the pad 4 and fixedly connected to the main pad plate body 1 and the semi-finished product body, can play a buffering role during the ceramic product firing process, reducing the impact of stress caused by thermal expansion and contraction on the ceramic product, and further preventing the ceramic product from deforming. When the mechanical picking arm completes the grabbing action, the electromagnetic inner block 9 is de-energized, the electromagnetic force disappears, and the outward push horizontal plate 10 slides inward along the guide inner slide groove 13 under the elastic force of the limit spring 8, returning to the side storage compartment 7, waiting for the next working cycle. Through the coordinated work of various components, the pad achieves stable support and precise positioning of the ceramic product during the firing process.This effectively prevents ceramic products from deforming during firing, and, in conjunction with a mechanical material handling arm, enables automated operation, improving production efficiency.

[0026] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this utility model. These improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in this art unless otherwise specified or limited.

Claims

1. A ceramic product sintering deformation prevention spacer comprising a main spacer slab body (1), characterized in that, The upper end of the main gasket plate body (1) is provided with several limiting holes and slots (2). A separate adapter pad (4) for the semi-finished product body to be processed is placed on the upper end of the main gasket plate body (1). A plurality of positioning holes (17) for the semi-finished product body to be processed are provided on the outside of the separate adapter pad (4). A plurality of protruding uprights (5) are fixedly connected to the lower end of the separate adapter pad (4). The plurality of protruding uprights (5) extend into the corresponding limiting holes and slots (2). An outer auxiliary frame (6) is fixedly connected to the outer end of the main gasket plate body (1). Side storage compartments (7) are symmetrically provided on the left and right ends of the outer auxiliary frame (6). The storage compartment (7) is located on the side of the corresponding semi-finished product body individual adapter pad (4). The inner wall of the side storage compartment (7) is fixedly connected to an electromagnetic inner block (9). The left and right ends of the electromagnetic inner block (9) are symmetrically fixedly connected to limit springs (8). The two limit springs (8) are fixedly connected to an outward pushable horizontal plate (10) at the end away from the side storage compartment (7). The upper end of the outward pushable horizontal plate (10) is provided with a hole-shaped groove (11). The upper end of the hole-shaped groove (11) is fixedly connected to a laser sensor (12). The main pad plate body (1) is equipped with a mechanical picking arm. The mechanical picking arm grabs the outer side of the corresponding semi-finished product body individual adapter pad (4).

2. A ceramic product sintering deformation prevention spacer according to claim 1, wherein The mechanical material handling arm has a built-in laser receiver, and the laser receiver and the corresponding laser sensor (12) cooperate with each other.

3. A ceramic product sintering distortion prevention spacer according to claim 1, wherein The front and rear ends of the pushable horizontal plate (10) are fixedly connected with guide outward sliding blocks (14), and the front and rear inner walls of the side storage compartment (7) are symmetrically provided with guide inner sliding grooves (13).

4. A gasket for preventing deformation during firing of ceramic products according to claim 3, characterized in that, The pushable horizontal plate (10) is slidably connected between the limiting spring (8) and the corresponding guide inner slide groove (13), and the inner end of the side storage compartment (7) is fixedly connected to a heat-insulated and high-temperature resistant inner compartment frame (15).

5. A ceramic product sintering distortion prevention spacer according to claim 4, wherein The pushable horizontal plate (10) is located inside the heat-insulating and high-temperature resistant inner frame (15), and the upper end of the main gasket plate body (1) is fixedly connected with a reinforcing inner rib (3).

6. A ceramic product sintering distortion prevention spacer according to claim 5, wherein The reinforcing inner rib (3) is located in the middle of the main gasket plate body (1), and the outer ends of the main gasket plate body (1) and the separately adapted pad block (4) of the semi-finished product body to be processed are both fixedly connected with a flexible support composite layer (16).