Thin-walled shell test clamp

Abstract

This utility model relates to the field of clamping technology and discloses a thin-walled shell testing clamp, including an upper clamping plate and a lower clamping plate symmetrically arranged above and below the upper clamping plate. A left sealing plate and a right sealing plate are symmetrically installed on the left and right sides of the top of the lower clamping plate. When testing the thin-walled shell to be tested, this utility model uses the upper and lower clamps and a clamping assembly to squeeze and limit the thin-walled shell. The clamping assembly has a buffering performance, which can disperse the stress on the shell and avoid damage to the shell. An inflation head is installed inside the lower sealing plate. After the thin-walled shell is clamped and sealed, air is inflated inside for a pressure holding test, which can quickly confirm whether the product has leakage defects and ensure product reliability. The upper and lower clamping plates, clamping assembly and other structures are all made of 45# steel with heat treatment and chrome plating, which has the characteristics of high strength, corrosion resistance and good stability.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically a thin-walled shell testing clamp. Background Technology

[0002] Thin-walled shells are key structural components in modern industry, widely used in aerospace, automobile manufacturing, medical devices and precision instruments, and often need to withstand high pressure, high temperature or corrosive media environments.

[0003] In existing technologies, the sealing performance of thin-walled shells is mainly achieved by bolting the pressure plate to achieve sealing. However, the contact stress is relatively concentrated, which can easily lead to local deformation of the shell. Furthermore, the clamping efficiency is low, and the repeated positioning accuracy is poor, making it difficult to meet the cycle time requirements of automated production lines. Utility Model Content

[0004] The purpose of this invention is to provide a thin-walled shell testing fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thin-walled shell test clamp, including an upper clamp plate, and further comprising:

[0006] A lower clamping plate is symmetrically arranged above and below the upper clamping plate. A left sealing plate and a right sealing plate are symmetrically installed on the left and right sides of the top of the lower clamping plate. A lower sealing plate is fixedly installed between the left sealing plate and the right sealing plate at the top of the lower clamping plate.

[0007] A clamping assembly for clamping the test housing is mounted on the bottom of the upper clamping plate.

[0008] Preferably, the clamping assembly is provided in several groups, including a fixed seat fixedly installed at the bottom of the upper clamping plate, a sleeve fixedly connected to the bottom of the fixed seat, a pressure rod slidably installed inside the sleeve, and a spring provided between the pressure rod and the sleeve.

[0009] Preferably, two sets of upper limit rods are symmetrically installed at the bottom of the upper clamping plate, and two sets of lower limit rods are fixedly connected to the top of the lower clamping plate.

[0010] Preferably, two symmetrical support seats are fixedly installed on the top of the lower clamping plate, and the left sealing plate and the right sealing plate are respectively installed on the corresponding support seats.

[0011] Preferably, both the upper clamping plate and the lower clamping plate are made of 45# steel and heat-treated, and the surface is chrome-plated.

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

[0013] When testing a thin-walled shell, this invention uses upper and lower clamps and a pressing assembly to squeeze and limit the thin-walled shell. The pressing assembly has a buffering function, which can disperse the stress on the shell and prevent damage. An inflation head is installed inside the lower sealing plate. After the thin-walled shell is clamped and sealed, air is injected into it to conduct a pressure test, which can quickly confirm whether there is a leakage defect in the product and ensure product reliability. The upper and lower clamp plates, pressing assembly and other structures are all made of 45# steel with heat treatment and chrome plating, which has the characteristics of high strength, corrosion resistance and good stability. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the thin-walled shell test clamp provided by this utility model;

[0015] Figure 2 A schematic diagram of the upper clamping plate structure provided by this utility model;

[0016] Figure 3 A schematic diagram of the clamping assembly structure provided by this utility model.

[0017] In the diagram: 1. Upper clamping plate; 2. Lower clamping plate; 3. Right sealing plate; 4. Left sealing plate; 5. Lower sealing plate; 6. Clamping assembly; 601. Fixed seat; 602. Sleeve; 603. Pressure rod; 604. Spring; 7. Upper limit rod; 8. Support seat; 9. Lower limit rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0019] Please see Figure 1-3 As shown, the thin-walled shell test clamp includes an upper clamp plate 1 and a lower clamp plate 2 symmetrically arranged above and below the upper clamp plate 1. The upper clamp plate 1 is connected to a transmission device and can drive the upper clamp plate 1 to move, and is used in conjunction with the lower clamp plate 2. The transmission device is selected according to the actual scenario and field, and is common knowledge to those skilled in the art, and will not be described in detail in this application. A left sealing plate 4 and a right sealing plate 3 are symmetrically installed on the left and right sides of the top of the lower clamp plate 2. A lower sealing plate 5 is fixedly installed on the top of the lower clamp plate 2 between the left sealing plate 4 and the right sealing plate 3. After the upper and lower clamps, left and right sealing plates and lower sealing plate 5 are spliced ​​together, the thin-walled shell to be tested is clamped and limited, and sealed. A clamping assembly 6 for clamping the test shell is installed at the bottom of the upper clamp plate 1.

[0020] It should be noted that when testing the thin-walled shell, the test piece is placed on the lower sealing plate 5 on the top of the lower clamping plate 2. Then, the left and right sealing plates are moved to seal the thin-walled shell. Then, the upper clamping plate 1 is moved down, which drives the clamping assembly 6 to move down and squeeze and limit the thin-walled shell. An inflation head is installed inside the lower sealing plate 5. After the thin-walled shell is clamped and sealed, air is injected into it to conduct a pressure holding test. This can quickly confirm whether the product has leakage defects and ensure product reliability.

[0021] The clamping assembly 6 is provided with several sets, including a fixed seat 601 fixedly installed at the bottom of the upper clamping plate 1. A sleeve 602 is fixedly connected to the bottom of the fixed seat 601. A pressure rod 603 is slidably installed inside the sleeve 602. A spring 604 is provided between the pressure rod 603 and the sleeve 602. When the upper clamping plate 1 moves, it drives the clamping assembly 6 to move down synchronously until the pressure rod 603 contacts the thin-walled shell to be tested. As the pressure rod 603 continues to move down, it compresses the spring 604. The spring 604 slows down the contraction speed of the pressure rod 603, which plays a buffering role and avoids the thin-walled shell from being damaged by excessive pressure.

[0022] Two sets of upper limit rods 7 are symmetrically installed at the bottom of the upper clamping plate 1, and two sets of lower limit rods 9 are fixedly connected to the top of the lower clamping plate 2. The upper limit rods 7 move down synchronously with the upper clamping plate 1. When the upper limit rods 7 contact the lower limit rods 9, the upper clamping plate 1 moves to the designated position.

[0023] Two symmetrical support seats 8 are fixedly installed on the top of the lower clamping plate 2. The left sealing plate 4 and the right sealing plate 3 are respectively installed on the corresponding support seats 8. The upper clamping plate 1 and the lower clamping plate 2 are both made of 45# steel and heat-treated, and the surface is chrome-plated. The upper and lower clamping plates, the clamping assembly 6 and other structures are all made of 45# steel and heat-treated, and the surface is chrome-plated, which has the characteristics of high strength, corrosion resistance and good stability.

[0024] Working principle: When testing a thin-walled shell, the test piece is placed on the lower sealing plate 5 on top of the lower clamping plate 2. Then, the left and right sealing plates are moved to seal the thin-walled shell. Then, the upper clamping plate 1 moves down, causing the clamping assembly 6 to move down and squeeze and limit the thin-walled shell. An inflation head is installed inside the lower sealing plate 5. After the thin-walled shell is clamped and sealed, air is injected into it to conduct a pressure holding test, which can quickly confirm whether the product has leakage defects and ensure product reliability.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] 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. Thin-walled shell test fixture comprising an upper fixture plate (1), characterized in that, Also includes: A lower clamping plate (2) is symmetrically arranged above and below the upper clamping plate (1). A left sealing plate (4) and a right sealing plate (3) are symmetrically installed on the left and right sides of the top of the lower clamping plate (2). A lower sealing plate (5) is fixedly installed between the left sealing plate (4) and the right sealing plate (3) at the top of the lower clamping plate (2). A clamping assembly (6) for clamping the test housing is mounted on the bottom of the upper clamping plate (1).

2. The thin-walled enclosure proof press fixture of claim 1, wherein: The clamping assembly (6) is provided with several sets, including a fixed seat (601) fixedly installed at the bottom of the upper clamp plate (1), a sleeve (602) fixedly connected to the bottom of the fixed seat (601), and a pressure rod (603) slidably installed inside the sleeve (602); a spring (604) is provided between the pressure rod (603) and the sleeve (602).

3. The thin-walled shell test clamp according to claim 1, characterized in that: Two sets of upper limit rods (7) are symmetrically installed at the bottom of the upper clamping plate (1), and two sets of lower limit rods (9) are fixedly connected to the top of the lower clamping plate (2).

4. The thin-walled shell test clamp according to claim 1, characterized in that: The top of the lower clamp plate (2) is fixedly installed with two symmetrical support seats (8), and the left sealing plate (4) and the right sealing plate (3) are respectively installed on the corresponding support seats (8).

5. The thin-walled shell test clamp according to claim 1, characterized in that: The upper clamp plate (1) and the lower clamp plate (2) are both made of 45# steel and heat-treated, and the surface is chrome-plated.

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