Large-size sample frame type vibration test tool

Abstract

The utility model discloses a large-size sample frame type vibration test tool, which comprises a base, a clamping mechanism is arranged on the base, the clamping mechanism comprises a mounting sleeve, a pressure applying mechanism, a support frame, a sliding block, a push rod, a mounting plate and a flexible support mechanism, the flexible support mechanism comprises a sliding rod, an abutting block, a tension spring and a limiting plate, and the pressing mechanism is arranged on the base. The multiple sets of sliding rods are installed on the multiple sets of installation plates in a sliding mode, the abutting blocks are installed at the top ends of the multiple sets of sliding rods, the tension springs are installed on the bottom faces of the abutting blocks and connected with the installation plates, the limiting plates are installed on the installation plates, and the flexible supporting mechanism is matched with the abutting blocks through the sliding rods. The clamping angle of the sliding block can be automatically adjusted according to the shape of the outer wall of the sample, especially under the condition that the outer wall of the sample is irregular, the protruding part can push the abutting block to abut against the limiting plate, and the sunken part pulls the abutting plate and the sliding rod to push the soft block to make contact with the sunken part of the sample through the elastic effect of the tension spring. Therefore, comprehensive clamping of the complex curved surface sample is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of vibration test, more particularly, it relates to a large size sample frame type vibration test frock. BACKGROUND

[0002] Vibration test is the test to the vibration object or model for evaluating the anti-vibration ability of the product in the expected use environment, and the vibration test is the simulation of various vibration environmental influences encountered by the product in the transportation, installation and use environment, the test is to simulate various vibration environmental influences encountered by the product in the transportation, installation and use environment, and is used to determine whether the product can withstand various environmental vibrations, and the vibration test is an important way to evaluate the resistance of components, parts and whole machines in the expected transportation and use environment;

[0003] In the vibration test process of large size samples, in order to accurately simulate the vibration environment under actual working conditions, the sample needs to be firmly fixed and effectively supported, however, the existing technology is often designed for specific size and shape of sample, lacks flexibility, and is difficult to adapt to the clamping needs of different size samples, especially when facing large size or irregular shape samples, the fixing mode of the traditional test device has limitations, and it is difficult to realize reliable clamping, which may cause displacement or loosening of the sample during the test process, affecting the accuracy of the vibration test and the reliability of the results. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the problems in the prior art, the utility model provides a large size sample frame type vibration test frock to solve the technical problems that the prior art in the background art is often designed for specific size and shape of sample, lacks flexibility, and is difficult to adapt to the clamping needs of different size samples.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: A large -size sample frame formula vibration test frock, including base, the clamping mechanism is arranged on the base, the clamping mechanism includes installation sleeve, pressure mechanism, support frame, sliding block, push rod, mounting plate and flexible support mechanism, the installation sleeve is installed on the base, the pressure mechanism is arranged in the outside of installation sleeve, and the support frame is installed in the installation sleeve, the sliding block is provided with a plurality of groups and slides on the support frame, the push rod is provided with a plurality of groups and slides on the outer wall of installation sleeve, the mounting plate is installed on the top end of a plurality of sliding blocks, the flexible support mechanism includes slide rod, abutment, tension spring and limit plate, the slide rod is provided with a plurality of groups and slides on a plurality of mounting plates, the abutment is installed on the top end of a plurality of slide rods, the tension spring is installed on the bottom surface of a plurality of abutments and is connected with the mounting plate, and the limit plate is installed on the mounting plate.

[0008] The utility model further sets up, the pressure mechanism includes push block, contact block, pressure plate and hydraulic cylinder, the push block is installed on the bottom end of a plurality of push rods, the contact block is installed on the top end of a plurality of push rods, the pressure plate is provided with a plurality of rotation installations and is installed on the outer wall of installation sleeve, and the hydraulic cylinder is provided with a plurality of groups, and a plurality of hydraulic cylinders telescopic end rotation connects a plurality of pressure plates and bottom end rotation connects the base.

[0009] The utility model further sets up, the support frame branch is all provided with a plurality of polygonal shapes and is slidably connected with a plurality of sliding blocks, by the polygonal structure of support frame design, the sliding block can slide along the multiple faces of polygonal support frame, to improve the flexibility and precision of sliding block movement.

[0010] The utility model further sets up, and the inside of a plurality of sliding blocks is connected with the support frame and is all equipped with reset spring, by setting reset spring between the inside of sliding block and support frame, when clamping work ends, reset spring can make sliding block bounce back to initial position quickly, to make clamping mechanism restore to standby state, and the elasticity design of reset spring can guarantee that sliding block runs smoothly and efficiently in the reset process, avoids that sliding block is jammed or is deviated.

[0011] The utility model further sets up, and the top surface of a plurality of contact blocks is all provided with arc shape, by the arc shape design of contact block top surface, can reduce the contact area between contact block and pressure plate inner wall, to reduce friction, makes the push rod in the process of pushing more smooth.

[0012] The utility model further sets up, and the bottom end of a plurality of slide rods is all equipped with soft block, by installing soft block at the bottom end of slide rod, can effectively buffer the hard contact between slide rod and sample outer wall, reduces the damage to sample surface, and the flexibility of soft block can adapt to the sample of different shapes and surface characteristics, ensures the uniform stress when clamping, improves the reliability and safety of clamping.

[0013] The utility model further sets up, support frame top surface installation is equipped with the supporting plate, through installing the supporting plate on support frame top surface, can provide a stable support platform for sample, prevent sample from inclining or sliding in the clamping process, the design of supporting plate can ensure that sample keeps horizontal state when clamping, thereby improve the accuracy and reliability of vibration test.

[0014] The utility model further sets up, a plurality of push block all with sliding block outer wall is engaged, through push block with sliding block outer wall is engaged, can ensure that push block when promoting sliding block's force transmission is more direct and even, avoid the loss of force and the deviation of sliding block.

[0015] (Three) beneficial effect

[0016] Compared with the prior art, the utility model provides a kind of large-size sample frame type vibration test tooling, with following beneficial effects:

[0017] 1, the clamping mechanism in the utility model is slidably connected with sliding block by support frame, so that sliding block can freely slide on support frame, and automatic reset of sliding block is realized by the action of return spring, so that the trouble of manual position adjustment is avoided, and the efficiency and convenience of operation are improved;The mounting plate installed at the top end of sliding block can stably support and clamp sample by the cooperation of slide rod and abutment block, so that clamping is more reliable;In addition, the supporting plate on the top surface of support frame provides a stable placement platform for sample, effectively prevents sample from sliding or inclining during vibration test, and further ensures the stability and accuracy of test.

[0018] 2, the cooperation of slide rod and abutment block enables sliding block to automatically adjust clamping angle according to the shape of sample outer wall, especially in the case of irregular sample outer wall, convex part will push abutment block and limit plate abutment, while concave part will pull abutment plate and slide rod to push soft block and contact sample recessed part by the elastic action of tension spring, so that comprehensive clamping of complex curved surface sample is realized;The soft block installed at the bottom end of slide rod can effectively avoid surface damage of sample due to hard contact, while ensuring uniform distribution of clamping force, improving the safety and stability of clamping;Tension spring further enhances the effect of flexible clamping by pulling abutment plate and cooperating with slide rod during clamping, and after test, it can restore slide rod and soft block to initial position by elastic reset, which is convenient for repeated use and operation.

[0019] 3、The pressure applying mechanism drives the pressure applying plate to rotate through the extension and retraction movement of the hydraulic cylinder, and the abutment of the pressure applying plate and the contact block can uniformly transmit the force to the push rod, and the push block and the sliding block outer wall are engaged to realize the pushing of the sliding block, and further make the sliding block slide along the support frame to extrude the return spring, which not only can make the sliding block slide flexibly on the support frame, but also can ensure the uniformity of the stress of the sliding block, and avoid the occurrence of the jamming phenomenon; the hydraulic driving mode of the pressure applying mechanism provides stable and controllable clamping force, which can meet the clamping needs of samples of different sizes, and when the hydraulic cylinder is retracted, the pushing force on the sliding block can be released, the return spring can restore the elasticity to release the sliding block to diffuse along the support frame to the initial position, and then the clamping state is released, and the design of the whole pressure applying mechanism is efficient and safe. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of a large-size sample frame type vibration test tool in the utility model;

[0021] Figure 2 It is a sectional structure schematic view of a mounting sleeve in the utility model;

[0022] Figure 3 It is a structure schematic view of a flexible support mechanism in the utility model;

[0023] Figure 4 It is a local structure schematic view of a pressure applying mechanism in the utility model;

[0024] Figure 5 It is a structure schematic view of a support frame in the utility model.

[0025] In the drawing: 1, base; 2, mounting sleeve; 3, support frame; 4, sliding block; 5, push rod; 6, mounting plate; 7, sliding rod; 8, abutment block; 9, tension spring; 10, limiting plate; 11, push block; 12, contact block; 13, pressure applying plate; 14, hydraulic cylinder; 15, return spring; 16, soft block; 17, supporting plate. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0028] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0029] Please refer to Figures 1-5 A large-size sample frame type vibration test tool, including base 1, base 1 is provided with clamping mechanism, clamping mechanism includes mounting sleeve 2, pressure mechanism, support frame 3, sliding block 4, push rod 5, mounting plate 6 and flexible support mechanism, mounting sleeve 2 is installed on base 1, pressure mechanism is arranged on the outside of mounting sleeve 2, and the support frame 3 is installed in mounting sleeve 2, sliding block 4 is provided with multiple groups of sliding on support frame 3, push rod 5 is provided with multiple groups of sliding installation on the outer wall of mounting sleeve 2, mounting plate 6 is installed at the top of multiple sliding blocks 4, flexible support mechanism includes slide 7, block 8, tension spring 9 and limit plate 10, slide 7 is provided with multiple groups of sliding installation on multiple mounting plates 6, block 8 is installed at the top of multiple slide 7, tension spring 9 is installed on the bottom surface of multiple block 8 and is connected with mounting plate 6, and limit plate 10 is installed on mounting plate 6.

[0030] Pressure mechanism includes push block 11, contact block 12, pressure plate 13 and hydraulic cylinder 14, push block 11 is installed at the bottom end of multiple push rod 5, contact block 12 is installed at the top end of multiple push rod 5, pressure plate 13 is provided with multiple groups of rotating installation on the outer wall of mounting sleeve 2, and multiple groups of hydraulic cylinder 14 are provided, and the telescopic end of multiple groups of hydraulic cylinder 14 is rotatably connected with multiple groups of pressure plate 13 and the bottom end is rotatably connected with base 1.

[0031] The branch of support frame 3 is provided with multiple groups of sliding connection with multiple sliding blocks 4.

[0032] Reset spring 15 is connected between the inner side of multiple sliding blocks 4 and support frame 3.

[0033] The top surface of multiple contact blocks 12 is provided with arc shape.

[0034] Soft block 16 is installed at the bottom end of multiple slide 7.

[0035] Support frame 3 is provided with supporting plate 17 on the top surface.

[0036] Multiple push blocks 11 are engaged with the outer wall of sliding block 4.

[0037] In this embodiment, the sample is placed on the supporting plate 17, the hydraulic cylinder 14 is extended and retracted, when the hydraulic cylinder 14 is extended and retracted, the extension end pushes the pressing plate 13 to rotate and contact the abutting block 8, pushes the push rod 5 to slide, the push rod 5 pushes the push block 11 to slide, the push block 11 is clamped on the outer side of the sliding block 4 and pushes the sliding block 4 to slide along the supporting frame 3 and extrude the reset spring 15, the sliding block 4 drives the mounting plate 6 to slide and is installed on the multiple groups of sliding rods 7, which gradually gather towards the outer wall of the sample, then the multiple groups of soft blocks 16 contact the outer wall of the sample and push the sliding block 4 to slide along the mounting plate 6, at the same time, the tension spring 9 between the abutting block 8 and the mounting plate 6 is stretched to the abutting block 8 abutting the limiting plate 10, when encountering a sample with irregular outer surface, the protruding part of the sample contacts the soft block 16 and pushes the abutting block 8 to abut on the limiting plate 10, and the recessed part is contacted with the soft block 16 by the abutting block 8 driven by the tension spring 9. The clamping of the sample is completed.

[0038] More specifically, conversely, the extension end of the multiple hydraulic cylinders 14 is retracted to pull the pressing plate 13 to rotate outward to release the abutting of the multiple contact blocks 12, and then the pushing force on the sliding block 4 is released, the multiple sliding blocks 4 are pushed to slide outward along the supporting frame 3 by the elastic reset of the multiple reset springs 15, at the same time, the abutting block 8 is reset and the sliding block 4 and the soft block 16 are reset to the initial position by the elastic reset of the multiple tension springs 9, and the clamping of the sample is released.

[0039] In summary, when the overall device is in use or operation: the sample is placed on the supporting plate 17, the hydraulic cylinder 14 is extended and retracted, when the hydraulic cylinder 14 is extended and retracted, the extension end pushes the pressing plate 13 to rotate and contact the abutting block 8, pushes the push rod 5 to slide, the push rod 5 pushes the push block 11 to slide, the push block 11 is clamped on the outer side of the sliding block 4 and pushes the sliding block 4 to slide along the supporting frame 3 and extrude the reset spring 15, the sliding block 4 drives the mounting plate 6 to slide and is installed on the multiple groups of sliding rods 7, which gradually gather towards the outer wall of the sample, then the multiple groups of soft blocks 16 contact the outer wall of the sample and push the sliding block 4 to slide along the mounting plate 6, at the same time, the tension spring 9 between the abutting block 8 and the mounting plate 6 is stretched to the abutting block 8 abutting the limiting plate 10, when encountering a sample with irregular outer surface, the protruding part of the sample contacts the soft block 16 and pushes the abutting block 8 to abut on the limiting plate 10, and the recessed part is contacted with the soft block 16 by the abutting block 8 driven by the tension spring 9. The clamping of the sample is completed.

[0040] Conversely, the extension end of the multiple hydraulic cylinders 14 is retracted to pull the pressing plate 13 to rotate outward to release the abutting of the multiple contact blocks 12, and then the pushing force on the sliding block 4 is released, the multiple sliding blocks 4 are pushed to slide outward along the supporting frame 3 by the elastic reset of the multiple reset springs 15, at the same time, the abutting block 8 is reset and the sliding block 4 and the soft block 16 are reset to the initial position by the elastic reset of the multiple tension springs 9, and the clamping of the sample is released.

[0041] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A large scale sample frame type vibration test tooling comprising a base (1) characterised by: The base (1) is provided with a clamping mechanism, the clamping mechanism includes a mounting sleeve (2), a pressing mechanism, a support frame (3), a sliding block (4), a push rod (5), a mounting plate (6) and a flexible support mechanism, the mounting sleeve (2) is mounted on the base (1), the pressing mechanism is arranged on the outside of the mounting sleeve (2), the support frame (3) is mounted in the mounting sleeve (2), the sliding block (4) is provided with a plurality of groups of sliding blocks on the support frame (3), the push rod (5) is provided with a plurality of groups of slidingly mounted on the outer wall of the mounting sleeve (2), the mounting plate (6) is mounted on the top end of the plurality of sliding blocks (4), the flexible support mechanism includes a sliding rod (7), a stop block (8), a tension spring (9) and a limiting plate (10), the sliding rod (7) is provided with a plurality of groups of slidingly mounted on the plurality of mounting plates (6), the stop block (8) is mounted on the top end of the plurality of sliding rods (7), the tension spring (9) is mounted on the bottom surface of the plurality of stop blocks (8) and connected with the mounting plate (6), and the limiting plate (10) is mounted on the mounting plate (6).

2. A large scale sample frame vibration test tooling according to claim 1, characterized in that: The pressing mechanism includes a push block (11), a contact block (12), a pressing plate (13) and a hydraulic cylinder (14), the push block (11) is mounted on the bottom end of the plurality of push rods (5), the contact block (12) is mounted on the top end of the plurality of push rods (5), the pressing plate (13) is provided with a plurality of groups of rotatingly mounted on the outer wall of the mounting sleeve (2), and the hydraulic cylinder (14) is provided with a plurality of groups, and the plurality of hydraulic cylinders (14) are connected with the plurality of pressing plates (13) at the telescopic end and connected with the base (1) at the bottom end.

3. A large scale sample frame vibration test tooling according to claim 2, wherein: The support frame (3) is provided with a plurality of groups of polygonal sliding blocks (4).

4. A large scale sample frame vibration test tooling according to claim 3, wherein the plurality of sets of The inner side of the sliding block (4) and the support frame (3) are connected and provided with a reset spring (15).

5. A large scale sample frame vibration test tooling according to claim 4, characterised in that: The top surface of the plurality of contact blocks (12) is arc-shaped.

6. A large scale sample frame vibration test tooling according to claim 5, characterized by: The bottom end of the plurality of sliding rods (7) is provided with a soft block (16).

7. A large scale sample frame vibration test tooling according to claim 6, characterised in that: The top surface of the support frame (3) is provided with a supporting plate (17).

8. A large scale sample frame vibration test tooling according to claim 7, characterized by: The plurality of push blocks (11) are engaged with the outer wall of the sliding block (4).

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