Clamp for pressure resistance detection of metal product
By introducing a buffer mechanism and a closing mechanism into the fixture for pressure resistance testing of metal products, the problems of easy damage and insufficient versatility of the fixture are solved, and a stable clamping and multi-shape adaptability testing effect is achieved.
Patent Information
- Application Number
- CN202520200373.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-09
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-09
AI Technical Summary
Traditional metal product pressure resistance testing fixtures lack buffer devices, making the fixtures or other components prone to damage. They also lack versatility and cannot adapt to testing needs of different shapes and sizes.
Employing a buffer mechanism, including a hydraulic damping buffer, springs, and rubber pads, combined with a motor, rotating rod, sun gear, and planetary gear system in the closing mechanism, it achieves stable clamping and pressure buffering of metal products, adapting to metal products of various shapes.
It effectively reduces damage to the fixtures during the testing process, extends the service life, and improves the versatility and accuracy of the device, adapting to metal products of various shapes.
Smart Images
Figure CN223897188U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to pressure detection technical field, especially a kind of metal product pressure detection clamp. BACKGROUND
[0002] Metal product pressure detection clamp is a device specially designed for detecting the strength and sealing performance of metal materials in high-pressure environment, and the role of pressure detection is mainly to ensure the safety and reliability of metal products during use, especially in aerospace, automobile, petrochemical industry and other industries, to prevent accidents caused by material failure, improve the overall performance and service life of equipment.
[0003] And the traditional metal product pressure detection clamp does not have a device specially for buffering pressure, and the large impact force generated during the detection of metal products cannot be effectively dispersed, which can easily damage the clamp or other components, and the traditional clamp is usually designed for metal products of specific shape and size, so when different shapes or sizes of products need to be detected, the entire clamp often needs to be replaced or the clamp needs to be adjusted and modified complexly, resulting in poor universality, which reduces production efficiency and cannot meet the detection needs of diversified products in modern industrial production. SUMMARY
[0004] The utility model aims at at least in a certain extent to solve the shortcoming of prior art, and proposes a kind of metal product pressure detection clamp.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] A kind of metal product pressure detection clamp, including fixed plate, the fixed plate top is fixedly connected with buffer mechanism, fixed plate top is connected with closure mechanism by screw thread, and closure mechanism and buffer mechanism bottom are fixedly connected, closure mechanism top is connected with L-shaped plate by screw thread, L-shaped plate one side is fixedly connected with rubber block.
[0007] As a further scheme of the utility model: the buffer mechanism includes hydraulic damping buffer, spring, rubber pad, and hydraulic damping buffer is fixedly connected to the top of fixed plate.
[0008] As a further scheme of the utility model: the spring is sleeved on the telescopic end of hydraulic damping buffer, rubber pad is fixedly connected to the telescopic end of hydraulic damping buffer, and rubber pad is fixedly connected with closure mechanism.
[0009] As a further scheme of the utility model: the closure mechanism includes motor, rotating rod, sun gear, gear ring, planet carrier, planetary gear, clamping plate, rack and slider, and motor is connected with motor by screw thread.
[0010] As a further embodiment of this utility model: the rotating rod is fixedly connected to the output end of the motor, the sun gear is fixedly connected to one end of the rotating rod, the planetary carrier is fixedly connected to the top of the rubber block, and the gear ring is rotatably connected to the outer wall of the planetary carrier, with teeth on both the inner and outer edges of the gear ring.
[0011] As a further embodiment of this utility model: the planetary gear is rotatably connected to the top of the planetary carrier, and a groove is provided on the top of the planetary carrier. The slider is slidably connected to the inner wall of the groove. The clamping plate is inserted into the inside of the clamping plate. A rack is provided on one side of the clamping plate, and the sun gear meshes with the teeth on the outer edge of the gear ring.
[0012] As a further embodiment of this utility model: the planetary gear meshes with the teeth on the inner edge of the gear ring, and the rack meshes with the planetary gear, and the top of the slider is connected to an L-shaped plate by a thread.
[0013] Compared with the prior art, this utility model provides a fixture for testing the pressure resistance of metal products, which has the following advantages:
[0014] 1. A clamp for pressure resistance testing of metal products, wherein when performing pressure resistance testing on metal products, the metal product to be tested is placed in the central area enclosed by an L-shaped plate. At this time, the closing mechanism is activated to drive the L-shaped plate to move towards the center, thereby causing the rubber block to gradually approach the metal product until it is clamped. Subsequently, the metal product is subjected to pressure during the testing process, which causes the closing mechanism to squeeze the buffer mechanism. Thus, the metal product is stably clamped, and the buffer mechanism prevents the strong pressure generated during the pressure resistance test from damaging the closing mechanism.
[0015] 2. A clamp for pressure resistance testing of metal products, wherein during pressure testing, the closing mechanism is subjected to downward pressure, which is first transmitted to a rubber pad. The rubber pad initially buffers part of the pressure through its own elastic deformation, while transmitting the remaining pressure to a spring and a hydraulic damping buffer. The spring begins to compress under pressure, resisting the pressure with gradually increasing elastic force. At the same time, the telescopic end of the hydraulic damping buffer begins to contract. Due to the viscosity and throttling effect of the hydraulic oil, a damping force opposite to the direction of movement is generated, further resisting the pressure from the closing mechanism. When the pressure resistance test of the metal product ends, the pressure decreases, and the spring releases its stored elastic potential energy, pushing the telescopic end of the hydraulic damping buffer and the rubber pad back to their initial positions. Thus, by resisting the pressure during the testing process, the pressure borne by the closing mechanism is reduced, extending the service life of the closing mechanism.
[0016] 3. A clamp for testing the pressure resistance of metal products, wherein when clamping the metal product, after placing the metal product in the central area enclosed by the L-shaped plate, the motor is started, and the rotating rod drives the sun gear to rotate, causing the gear ring to rotate around the outer wall of the planetary carrier. Subsequently, the teeth on the inner edge of the gear ring drive the planetary gear to rotate. Since the planetary gear meshes with the rack on the clamping plate, and under the action of the slider and the groove, the clamping plate slides along the groove, and drives the L-shaped plate and the rubber block to approach the metal product to clamp the metal product. Conversely, after the test is completed, the motor is reversed, the sun gear rotates in the opposite direction, and drives the gear ring and the planetary gear to rotate in the opposite direction, so that the clamping plate gradually releases the metal product. Thus, the clamping plate can apply clamping force to the metal product synchronously and evenly, ensuring the accuracy and reliability of the pressure resistance test, and can adapt to metal products of various shapes, even irregular metal products, reducing the time wasted due to changing clamps, and improving the versatility and practicality of the device.
[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0018] Figure 1 This is a front view of a clamp for testing the pressure resistance of metal products according to this utility model;
[0019] Figure 2 This is a schematic diagram of the buffer mechanism in a clamp for pressure resistance testing of metal products proposed in this utility model;
[0020] Figure 3 This is an enlarged detail view of the buffer structure in a clamp for testing the pressure resistance of metal products according to this utility model;
[0021] Figure 4 This is a schematic diagram of the closing mechanism in a clamp for testing the pressure resistance of metal products according to this utility model;
[0022] Figure 5 This is a top view of the closed structure in a clamp for testing the pressure resistance of metal products proposed in this utility model.
[0023] In the diagram: 1. Fixed plate; 2. Buffer mechanism; 3. Closing mechanism; 4. L-shaped plate; 5. Rubber block; 201. Hydraulic damping buffer; 202. Spring; 203. Rubber pad; 301. Motor; 302. Rotating rod; 303. Sun gear; 304. Gear ring; 305. Planetary carrier; 306. Planetary gear; 307. Clamping plate; 308. Rack; 309. Slider. Detailed Implementation
[0024] 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.
[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] A clamp for testing the pressure resistance of metal products, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a fixed plate 1, a buffer mechanism 2 is fixedly connected to the top of the fixed plate 1, a closing mechanism 3 is threadedly connected to the top of the fixed plate 1, and the bottom of the closing mechanism 3 and the buffer mechanism 2 are fixedly connected. An L-shaped plate 4 is threadedly connected to the top of the closing mechanism 3, a rubber block 5 is fixedly connected to one side of the L-shaped plate 4, and an anti-slip groove is opened on one side of the rubber block 5.
[0028] When performing a pressure resistance test on a metal product, the metal product to be tested is placed in the central area enclosed by the L-shaped plate 4. At this time, the closing mechanism 3 is activated to move the L-shaped plate 4 towards the center, so that the rubber block 5 gradually approaches the metal product until it is clamped. Then, the metal product is subjected to pressure. During the test, the metal product is subjected to pressure, which causes the closing mechanism 3 to squeeze the buffer mechanism 2. Thus, the metal product is stably clamped, and the buffer mechanism 2 prevents the strong pressure generated during the pressure resistance test from damaging the closing mechanism 3.
[0029] To mitigate damage to the closing mechanism 3 during testing, such as Figure 2 and Figure 3As shown, the buffer mechanism 2 includes a hydraulic damping buffer 201, a spring 202, and a rubber pad 203. The hydraulic damping buffer 201 is fixedly connected to the top of the fixed plate 1, the spring 202 is sleeved on the telescopic end of the hydraulic damping buffer 201, and the rubber pad 203 is fixedly connected to the telescopic end of the hydraulic damping buffer 201. The rubber pad 203 is also fixedly connected to the closing mechanism 3. The model of the hydraulic damping buffer 201 is AC1416-2.
[0030] During pressure testing, the closing mechanism 3 experiences downward pressure. This pressure is first transmitted to the rubber pad 203, which initially buffers some of the pressure through its elastic deformation, while simultaneously transmitting the remaining pressure to the spring 202 and the hydraulic damping buffer 201. Under pressure, the spring 202 begins to compress, resisting the pressure with gradually increasing elastic force. Simultaneously, the telescopic end of the hydraulic damping buffer 201 begins to contract, generating a damping force opposite to the direction of motion due to the viscosity and throttling effect of the hydraulic oil, further counteracting the pressure from the closing mechanism 3. When the pressure test on the metal product ends and the pressure decreases, the spring 202 releases its stored elastic potential energy, pushing the telescopic end of the hydraulic damping buffer 201 and the rubber pad 203 back to their initial positions. Thus, by counteracting the pressure during the testing process, the pressure borne by the closing mechanism 3 is reduced, extending its service life.
[0031] In order to clamp metal products, such as Figure 4 and Figure 5 As shown, the closing mechanism 3 includes a motor 301, a rotating rod 302, a sun gear 303, a gear ring 304, a planetary carrier 305, planetary gears 306, a clamping plate 307, a rack 308, and a slider 309. The motor 301 is threadedly connected to the motor 301. The rotating rod 302 is fixedly connected to the output end of the motor 301. The sun gear 303 is fixedly connected to one end of the rotating rod 302. The planetary carrier 305 is fixedly connected to the top of the rubber block 5. The gear ring 304 is rotatably connected to the outer wall of the planetary carrier 305, and both the inner and outer edges of the gear ring 304 have... The planetary gear 306 is rotatably connected to the top of the planetary carrier 305, and the top of the planetary carrier 305 has a groove. The slider 309 is slidably connected to the inner wall of the groove. The clamping plate 307 is inserted into the clamping plate 307. A rack 308 is provided on one side of the clamping plate 307. The sun gear 303 meshes with the teeth on the outer edge of the gear ring 304. The planetary gear 306 meshes with the teeth on the inner edge of the gear ring 304. The rack 308 meshes with the planetary gear 306. The top of the slider 309 is connected to an L-shaped plate 4 by a thread. The model of the motor 301 is 68KTYZ.
[0032] When clamping a metal product, after placing the metal product in the central area enclosed by the L-shaped plate 4, start the motor 301, and drive the sun gear 303 to rotate through the rotating rod 302, so that the gear ring 304 rotates around the outer wall of the planetary carrier 305.
[0033] Subsequently, the teeth on the inner edge of the gear ring 304 drive the planetary gear 306 to rotate. Since the planetary gear 306 meshes with the rack 308 on the clamping plate 307, and under the action of the slider 309 and the groove, the clamping plate 307 slides along the groove, and drives the L-shaped plate 4 and the rubber block 5 to approach the metal product to achieve clamping of the metal product.
[0034] Conversely, after the test is completed, the motor 301 is reversed, the sun gear 303 rotates in the opposite direction, driving the gear ring 304 and planetary gear 306 to rotate in the opposite direction, causing the clamping plate 307 to gradually loosen the metal product. This allows the clamping plate 307 to apply clamping force to the metal product synchronously and evenly, ensuring the accuracy and reliability of the pressure resistance test. It can also adapt to metal products of various shapes, even irregular metal products, reducing the time wasted due to changing clamps and improving the versatility and practicality of the device.
[0035] Working principle: When performing pressure resistance testing on metal products, the metal product to be tested is placed in the central area enclosed by the L-shaped plate 4. At this time, the closing mechanism 3 is activated to drive the L-shaped plate 4 to move towards the center, so that the rubber block 5 gradually approaches the metal product until it is clamped. Then, the metal product is subjected to pressure. During the test, the metal product is subjected to pressure, which drives the closing mechanism 3 to squeeze the buffer mechanism 2. When the pressure test is performed, the closing mechanism 3 is subjected to downward pressure. This pressure is first transmitted to the rubber pad 203. The rubber pad 203 initially buffers part of the pressure through its own elastic deformation, and at the same time transmits the remaining pressure to the spring 202 and the hydraulic damping buffer 201.
[0036] Spring 202 begins to be compressed under pressure. Spring 202 resists the pressure by gradually increasing elastic force. At the same time, the telescopic end of hydraulic damper 201 begins to contract. Due to the viscosity and throttling effect of hydraulic oil, a damping force opposite to the direction of movement is generated, further resisting the pressure from closing mechanism 3.
[0037] When the pressure test of the metal product is completed, the pressure decreases, the spring 202 releases the stored elastic potential energy, and pushes the telescopic end of the hydraulic damping buffer 201 and the rubber pad 203 back to the initial position.
[0038] When clamping a metal product, after placing the metal product in the central area enclosed by the L-shaped plate 4, start the motor 301, and drive the sun gear 303 to rotate through the rotating rod 302, so that the gear ring 304 rotates around the outer wall of the planetary carrier 305.
[0039] Subsequently, the teeth on the inner edge of the gear ring 304 drive the planetary gear 306 to rotate. Since the planetary gear 306 meshes with the rack 308 on the clamping plate 307, and under the action of the slider 309 and the groove, the clamping plate 307 slides along the groove, and drives the L-shaped plate 4 and the rubber block 5 to approach the metal product to achieve clamping of the metal product.
[0040] Conversely, after the test is completed, the motor 301 is reversed, the sun gear 303 rotates in the opposite direction, driving the gear ring 304 and planetary gear 306 to rotate in the opposite direction, so that the clamping plate 307 gradually loosens the metal product.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A clamp for testing the pressure resistance of metal products, comprising a fixing plate (1), characterized in that, The top of the fixed plate (1) is fixedly connected to a buffer mechanism (2), and the top of the fixed plate (1) is connected to a closing mechanism (3) by a thread. The bottom of the closing mechanism (3) and the buffer mechanism (2) are fixedly connected. The top of the closing mechanism (3) is connected to an L-shaped plate (4) by a thread. A rubber block (5) is fixedly connected to one side of the L-shaped plate (4).
2. The clamp for pressure resistance testing of metal products according to claim 1, characterized in that, The buffer mechanism (2) includes a hydraulic damping buffer (201), a spring (202), and a rubber pad (203), and the hydraulic damping buffer (201) is fixedly connected to the top of the fixed plate (1).
3. A clamp for testing the pressure resistance of metal products according to claim 2, characterized in that, The spring (202) is sleeved on the telescopic end of the hydraulic damping buffer (201), the rubber pad (203) is fixedly connected to the telescopic end of the hydraulic damping buffer (201), and the rubber pad (203) is fixedly connected to the closing mechanism (3).
4. A clamp for testing the pressure resistance of metal products according to any one of claims 1-3, characterized in that, The closing mechanism (3) includes a motor (301), a rotating rod (302), a sun gear (303), a gear ring (304), a planetary carrier (305), a planetary gear (306), a clamping plate (307), a rack (308), and a slider (309), and the motor (301) is connected to the motor (301) by a thread.
5. A clamp for testing the pressure resistance of metal products according to claim 4, characterized in that, The rotating rod (302) is fixedly connected to the output end of the motor (301), the sun gear (303) is fixedly connected to one end of the rotating rod (302), the planetary carrier (305) is fixedly connected to the top of the rubber block (5), and the gear ring (304) is rotatably connected to the outer wall of the planetary carrier (305), and the inner and outer edges of the gear ring (304) are both toothed.
6. A clamp for testing the pressure resistance of metal products according to claim 4, characterized in that, The planetary gear (306) is rotatably connected to the top of the planetary carrier (305), and the top of the planetary carrier (305) has a groove. The slider (309) is slidably connected to the inner wall of the groove. The clamping plate (307) is inserted into the clamping plate (307). A rack (308) is provided on one side of the clamping plate (307), and the sun gear (303) meshes with the teeth on the outer edge of the gear ring (304).
7. A clamp for testing the pressure resistance of metal products according to claim 4, characterized in that, The planetary gear (306) meshes with the teeth on the inner edge of the gear ring (304), and the rack (308) meshes with the planetary gear (306), and the top of the slider (309) is connected to an L-shaped plate (4) by a thread.