A pressure clamp that can withstand high temperatures
Through the innovative design of the base, pressure plate, and push plate structure, the problem of uneven pressure transmission in high-temperature environments is solved, achieving pressure uniformity and stability, improving the accuracy of workpiece test data and production consistency, and meeting the usage requirements of high-temperature working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGWEITE MEASUREMENT & CONTROL TECHNOLOGY (HUAIAN) CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-07-31
AI Technical Summary
Existing pressure fixtures, under high-temperature conditions, suffer from uneven pressure transmission due to misalignment of the pressure axis and assembly errors, resulting in workpiece deformation, delamination, poor bonding, and other quality defects. This affects the accuracy of scientific research and testing data and the consistency of mass production.
The system employs a base, pressure plate, and push plate structure, combined with components such as limit support rods, linear bearings, springs, and adjustment knobs. Through sliding fit and threaded lifting adjustment, it ensures that the pressure plate is fully in contact with the material surface, achieving stable and uniform pressure transmission and reducing assembly errors and the risk of axis misalignment.
It effectively solves the problem of uneven pressure transmission, avoids workpiece deformation and poor bonding, improves the accuracy of scientific research and testing data and the consistency of mass production, reduces the scrap rate, and meets the structural reliability requirements under high temperature conditions.
Smart Images
Figure CN224575496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure clamp technology, and in particular to a pressure clamp that can withstand high temperatures. Background Technology
[0002] In applications requiring stringent environmental temperature and pressure conditions, such as hot-press curing of composite materials, high-temperature welding of metals, or high-temperature mechanical testing of materials, a tooling device capable of functioning stably under extreme conditions is often needed. This is a high-temperature pressure fixture, typically made of high-temperature alloys, ceramic matrix composites, or special high-temperature resistant resins. It can maintain structural stability in high-temperature environments ranging from several hundred to over a thousand degrees Celsius, while precisely applying pressure to the workpiece or sample. This not only prevents the workpiece from deforming due to softening at high temperatures, ensuring the accuracy of its preset dimensions, but also promotes tight bonding at workpiece interfaces (such as between composite material layers and welded joints) to improve mechanical properties. Furthermore, it provides stable stress conditions for materials in scientific research and testing, ensuring the accuracy of experimental data.
[0003] However, in the existing technology, due to the misalignment of the pressure axis and assembly errors in the structure, the pressure clamps are unevenly transmitted downward, which can easily cause local stress imbalance. This can directly lead to quality defects such as workpiece deformation, delamination, and poor bonding. In scientific research and testing, the data is distorted, and during mass production, the product consistency is poor, the scrap rate is increased, and the workpiece is prone to fracture failure due to stress concentration during subsequent use. Utility Model Content
[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a pressure clamp that can withstand high temperatures.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base, a pressure plate, and a push plate. A limit support rod is fixedly connected to the upper part of the base. A linear bearing is installed on the surface of the pressure plate and is slidably connected to the pressure plate. The push plate is slidably connected to the limit support rod, and a second spring is fixedly connected to the bottom of the push plate. The second spring is fixedly connected to the upper part of the pressure plate. An adjustment knob is rotatably connected to the upper part of the push plate. A pressure rod is threadedly connected to the center of the adjustment knob. One end of the pressure rod passes through the surface of the push plate, and a mounting plate is fixedly connected to the top of the pressure rod.
[0006] Preferably, four limiting support rods are fixedly connected to the surface of the base, and the four limiting support rods are evenly distributed at the four corners of the base.
[0007] Preferably, the upper part of the push plate has two adjustment knobs rotatably connected, and the two adjustment knobs are symmetrically distributed on the surface of the push plate.
[0008] Preferably, a No. 1 spring is provided on the surface of the pressure rod, one end of the No. 1 spring is fixedly connected to the fixing plate, and the other end of the No. 1 spring is fixedly connected to the mounting plate.
[0009] Preferably, the second spring has a guide rod inside, one end of which is fixedly connected to the pressure plate, and the other end of which is inserted into the push plate.
[0010] Preferably, a limiting plate is provided at the top of the guide rod, and the limiting plate is slidably connected to the inside of the push plate.
[0011] Preferably, the two ends of the linear bearing are fixedly connected to the pressure plate by snap rings.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, a stable installation foundation is provided by the base. The sliding cooperation between the limiting support rod and the linear bearing fixed by the snap ring on the pressure plate effectively improves the coaxiality and stability of the pressure plate during movement, and solves the problem of misalignment of the pressure axis. By rotating the adjustment knob, it can be driven to rise and fall along the thread of the pressure rod that passes through the push plate, thereby adjusting the height and level of the push plate that is slidably connected to the limiting support rod, ensuring that the pressure plate is fully in contact with the material surface and ensuring stable pressure transmission. The first spring on the pressure rod that connects the fixing plate and the mounting plate can realize the reset of the mounting plate after it moves up and down. The second spring at the bottom of the push plate that connects to the pressure plate generates linear deformation when pressed down, so that the downward pressure increases linearly. Combined with the limiting effect of the guide rod on the push plate, it further ensures the uniformity and stability of the downward pressure. The overall structural design effectively avoids assembly errors and uneven pressure transmission problems, avoids defects such as workpiece deformation, delamination, and poor bonding, improves the accuracy of scientific research test data, improves product consistency in mass production and reduces scrap rate, and meets the requirements of high-temperature working conditions.
[0013] 2. In this utility model, the four limiting support rods evenly distributed at the four corners of the base provide a symmetrical and stable support foundation, offering a more reliable positioning reference for the sliding guidance of the pressure plate and push plate, effectively reducing the risk of pressure axis misalignment caused by support imbalance; the two symmetrically distributed adjustment knobs on the surface of the push plate facilitate precise calibration of the push plate's level through symmetrical adjustment, ensuring a tighter and more uniform fit between the pressure plate and the workpiece surface, further optimizing the consistency of pressure transmission; the guide rod inside the second spring has one end fixed to the pressure plate and the other end inserted into the push plate, effectively preventing lateral bending deformation when the second spring is pressed down, ensuring linear transmission of downward pressure along the vertical direction; the limiting plate at the top of the guide rod is slidably connected to the push plate, limiting the maximum downward stroke of the push plate, avoiding excessive pressure that could damage the workpiece or cause fixture component failure. Through the above design, the overall structure further enhances the uniformity of pressure transmission and the stability of fixture operation, more effectively solves the problems of assembly errors and axis misalignment, effectively reduces workpiece defects, improves the accuracy of test data and consistency of mass production, and enhances structural reliability under high-temperature conditions. Attached Figure Description
[0014] Figure 1 A first three-dimensional structural diagram of a pressure clamp that can withstand high temperatures is provided for this utility model; Figure 2 A second three-dimensional structural diagram of a pressure clamp that can withstand high temperatures is provided for this utility model; Figure 3 A side view of the cross-sectional structure of the pressure plate in a high-temperature resistant pressure fixture is provided for this utility model. Figure 4 This invention presents a side view of the cross-sectional structure of the push plate in a high-temperature resistant pressure fixture.
[0015] Legend: 1. Base; 2. Limiting support rod; 3. Pressure plate; 4. Linear bearing; 5. Push plate; 6. Fixing plate; 7. Pressure rod; 8. Mounting plate; 9. Spring No. 1; 10. Adjustment knob; 11. Guide rod; 12. Spring No. 2. Detailed Implementation
[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0018] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a high-temperature resistant pressure clamp, including a base 1, a pressure plate 3, and a push plate 5. A limit support rod 2 is fixedly connected to the upper part of the base 1. A linear bearing 4 is installed on the surface of the pressure plate 3 and is slidably connected to the pressure plate 3. The push plate 5 is slidably connected to the limit support rod 2, and a second spring 12 is fixedly connected to the bottom of the push plate 5. The second spring 12 is fixedly connected to the upper part of the pressure plate 3. An adjustment knob 10 is rotatably connected to the upper part of the push plate 5. A pressure rod 7 is threadedly connected to the center of the adjustment knob 10. One end of the pressure rod 7 passes through the surface of the push plate 5, and a mounting plate 8 is fixedly connected to the top of the pressure rod 7. A first spring 9 is provided on the surface of the pressure rod 7. One end of the first spring 9 is fixedly connected to the fixed plate 6, and the other end of the first spring 9 is fixedly connected to the mounting plate 8. The two ends of the linear bearing 4 are fixedly connected to the pressure plate 3 by snap rings.
[0019] The specific settings and functions of this embodiment are described below: The base 1 is installed in the set position, and the mounting plate 8 is installed and connected to the pressurizing device. The linear bearing 4 is slidably connected to the limit support rod 2, which improves the stability of the pressure plate 3 when it moves downward. By rotating the adjustment knob 10, the bottom of the adjustment knob 10 rotates on the surface of the push plate 5, and the middle part of the adjustment knob 10 moves up or down along the surface of the pressure rod 7 to adjust the height of the push plate 5, thereby driving the pressure plate 3 to move up and down. The height of the pressure plate 3 can be adjusted, and the levelness of the push plate 5 and the pressure plate 3 can also be adjusted so that the bottom of the pressure plate 3 can fully fit with the material surface when it presses down, ensuring that the pressure is transmitted downward stably. When the mounting plate 8 pushes the pressure rod 7, the adjustment knob 10, and the push plate 5 down, the pressure rod 7 is compressed. When the mounting plate 8 moves upward, the pressure rod 7 recovers its deformation, allowing the mounting plate 8 to reset. When the push plate 5 pushes the linear bearing 4 down, the second spring 12 is compressed, causing the downward pressure to increase linearly. At the same time, the push plate 5 slides along the guide rod 11, limiting the transmission of force when the push plate 5 is pressed down, thus improving the uniformity and stability of the downward force. The base 1 provides a stable installation foundation. The linear bearing 4, which is fixed to the pressure plate 3 by a snap ring, is slidably engaged with the limiting support rod 2. This effectively improves the coaxiality and stability of the pressure plate 3 during movement and solves the problem of misalignment of the pressure axis. By rotating the adjustment knob 10, it can be driven to rise and fall along the thread of the pressure rod 7 that passes through the push plate 5, thereby adjusting the height and level of the push plate 5, which is slidably connected to the limiting support rod 2. This ensures that the pressure plate 3 is fully in contact with the material surface and guarantees stable pressure transmission. The first spring 9 on the pressure rod 7, which connects the fixing plate 6 and the mounting plate 8, can realize the reset of the mounting plate 8 after it moves up and down. The second spring 12 at the bottom of the push plate 5, which connects to the pressure plate 3, produces linear deformation when pressed down, so that the downward pressure increases linearly. Combined with the limiting effect of the guide rod 11 on the push plate 5, this further ensures the uniformity and stability of the downward pressure. The overall structural design effectively avoids assembly errors and uneven pressure transmission. It can avoid defects such as workpiece deformation, delamination, and poor bonding, improve the accuracy of scientific research and testing data, improve product consistency in mass production and reduce scrap rate, and meet the requirements of high-temperature working conditions.
[0020] Example 2: Figure 1 - Figure 4 As shown, four limiting support rods 2 are fixedly connected to the surface of the base 1. The four limiting support rods 2 are evenly distributed at the four corners of the base 1. Two adjusting knobs 10 are rotatably connected to the upper part of the push plate 5. The two adjusting knobs 10 are symmetrically distributed on the surface of the push plate 5. A guide rod 11 is provided inside the second spring 12. One end of the guide rod 11 is fixedly connected to the pressure plate 3, and the other end of the guide rod 11 is inserted into the push plate 5. A limiting plate is provided at the top of the guide rod 11. The limiting plate is slidably connected to the inside of the push plate 5.
[0021] The overall effect of this embodiment is as follows: the four limiting support rods 2 evenly distributed at the four corners of the base 1 provide a symmetrical and stable support foundation, providing a more reliable positioning reference for the sliding guide of the pressure plate 3 and the push plate 5, effectively reducing the risk of pressure axis deviation caused by support imbalance; the two adjustment knobs 10 symmetrically distributed on the surface of the push plate 5 facilitate precise calibration of the level of the push plate 5 through symmetrical adjustment, ensuring that the pressure plate 3 and the workpiece surface are more closely and evenly attached, further optimizing the consistency of pressure transmission; the guide rod 11 inside the second spring 12 has one end fixed to the pressure plate 3 and the other end inserted into the push plate 5, which can effectively prevent the second spring 12 from bending and deforming when it is pressed down, ensuring that the downward pressure is transmitted linearly in the vertical direction; the limiting plate at the top of the guide rod 11 is slidably connected to the push plate 5, which can limit the maximum downward stroke of the push plate 5, avoiding excessive pressure that could damage the workpiece or cause the fixture components to fail. Through the above design, the overall structure further enhances the uniformity of pressure transmission and the stability of fixture operation, more effectively solves the problems of assembly errors and axis misalignment, effectively reduces workpiece defects, improves the accuracy of test data and consistency of mass production, and enhances the structural reliability under high temperature conditions.
[0022] The usage and working principle of this device are as follows: Install the base 1 in the set position, and then install and connect the mounting plate 8 to the pressurizing equipment. The linear bearing 4 is slidably connected to the limit support rod 2, which improves the stability of the pressure plate 3 when it moves downward. By rotating the adjustment knob 10, the bottom of the adjustment knob 10 rotates on the surface of the push plate 5, and the middle of the adjustment knob 10 moves up or down along the surface of the pressure rod 7 to adjust the height of the push plate 5, thereby driving the pressure plate 3 to move up and down. The height of the pressure plate 3 can be adjusted, and the levelness of the push plate 5 and the pressure plate 3 can also be adjusted so that the bottom of the pressure plate 3 can fully fit with the material surface when it presses down, ensuring stable downward pressure transmission. When the mounting plate 8 pushes the pressure rod 7, the adjusting knob 10, and the push plate 5 downwards, the pressure rod 7 is compressed. When the mounting plate 8 moves upwards, the pressure rod 7 recovers its deformation, allowing the mounting plate 8 to reset. When the push plate 5 pushes the linear bearing 4 downwards, the second spring 12 is compressed, causing the downward pressure to increase linearly. At the same time, the push plate 5 slides along the guide rod 11, limiting the transmission of force when the push plate 5 is pressed down, thus improving the uniformity and stability of the force during downward pressure.
[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A pressurized clamp that can withstand high temperatures, characterized by: The device includes a base (1), a pressure plate (3), and a push plate (5). A limit support rod (2) is fixedly connected to the upper part of the base (1). A linear bearing (4) is installed on the surface of the pressure plate (3). The linear bearing (4) is slidably connected to the pressure plate (3). The push plate (5) is slidably connected to the limit support rod (2). A second spring (12) is fixedly connected to the bottom of the push plate (5). The second spring (12) is fixedly connected to the upper part of the pressure plate (3). An adjustment knob (10) is rotatably connected to the upper part of the push plate (5). A pressure rod (7) is threadedly connected to the center of the adjustment knob (10). One end of the pressure rod (7) penetrates the surface of the push plate (5), and an mounting plate (8) is fixedly connected to the top of the pressure rod (7).
2. The pressurized clamp of claim 1, wherein: Four limiting support rods (2) are fixedly connected to the surface of the base (1), and the four limiting support rods (2) are evenly distributed at the four corners of the base (1).
3. The pressurized clamp of claim 1, wherein: The upper part of the push plate (5) is rotatably connected to two adjustment knobs (10), which are symmetrically distributed on the surface of the push plate (5).
4. The pressurized clamp of claim 1, wherein: The pressure rod (7) is provided with a No. 1 spring (9), one end of the No. 1 spring (9) is fixedly connected to the fixing plate (6), and the other end of the No. 1 spring (9) is fixedly connected to the mounting plate (8).
5. A high-temperature resistant pressure clamp according to claim 1, characterized in that: The second spring (12) has a guide rod (11) inside. One end of the guide rod (11) is fixedly connected to the pressure plate (3), and the other end of the guide rod (11) is inserted into the push plate (5).
6. A high-temperature resistant pressure clamp according to claim 5, characterized in that: A limiting plate is provided at the top of the guide rod (11), and the limiting plate is slidably connected to the push plate (5).
7. A high-temperature resistant pressure clamp according to claim 1, characterized in that: The two ends of the linear bearing (4) are fixedly connected to the pressure plate (3) by snap rings.