CN216978304U

CN216978304U - Clamp for fixing box-type test piece for vibration test

Info

Publication number: CN216978304U
Application number: CN202123122639.1U
Authority: CN
Inventors: 邹立军; 史峥宇; 向林; 何学谦; 熊伟
Original assignee: Hunan Aerospace Tianlu New Material Testing Co ltd
Current assignee: Hunan Aerospace Tianlu New Material Testing Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-07-15
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a fixture for fixing a box-type test piece for vibration test, which comprises a bottom plate arranged on a test bed, wherein stand columns are symmetrically arranged on the left side and the right side of the bottom plate, the bottom end of each stand column is connected with the bottom plate in a sliding manner, and the upper end of each stand column is fixedly connected with a cross beam; the screw rod is screwed into a threaded hole formed in the cross beam and then is fixedly connected with the pressing strip. The box-type test piece replacing device is simple in structure, operation steps for replacing the box-type test piece are simplified, bolts do not need to be screwed and unscrewed for multiple times, working efficiency is improved, and meanwhile scratching of the box-type test piece can be effectively avoided.

Description

Clamp for fixing box-type test piece for vibration test

Technical Field

The utility model belongs to the technical field of vibration tests, and particularly relates to a fixture for fixing a box-type test piece for a vibration test.

Background

In the vibration random test experiment, the box test piece needs to be fixed and compressed tightly on the vibration test bed, and the anchor clamps of fixing the box object among the prior art adopt the multiunit to include the layering group of an upper fixed plate and a bottom plate and connect an upper fixed plate and a bottom plate through the screw rod more, and this kind of anchor clamps can be with the effective fixed clamp of box object tightly. However, in the mode, the screw rod needs to be screwed up and loosened for many times when the box type test piece is replaced every time, the operation is complex, and uncertain factors such as scratching of the box body and the like are easily caused in the box type test piece replacing process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamp for fixing a box-type test piece for vibration test, which aims to solve the technical problems of complex operation for replacing the box-type test piece and easy damage to the surface of the box-type test piece.

In order to realize the purpose, the utility model adopts the following specific technical scheme:

a fixture for fixing a box-type test piece for vibration test comprises a bottom plate arranged on a test bed, wherein stand columns are symmetrically arranged on the left side and the right side of the bottom plate, the bottom end of each stand column is connected with the bottom plate in a sliding manner, and the upper end of each stand column is fixedly connected with a cross beam; the screw rod is screwed into a threaded hole formed in the cross beam and then is fixedly connected with the pressing strip.

From this, the utility model discloses a stand can drive the crossbeam and slide and target in place to adopt the lead screw and will place the box test piece on the bottom plate through the layering and compress tightly, this box test piece vibration test has simplified the structure with anchor clamps, easy operation has removed the loaded down with trivial details step of screwing up the bolt of unscrewing many times from, has more prevented that box test piece surface from receiving the damage because of loaded down with trivial details operation.

Furthermore, the cross beam is also provided with positioning rods arranged on two sides of the screw rod, and the positioning rods penetrate through holes in the cross beam and are movably connected with the pressing strips. The positioning rods arranged on the cross beam play a role in fixing the pressing strip, so that the pressing strip is prevented from steering and deviating in the vibration process to influence the vibration test.

Furthermore, the lower surface of the pressing strip is provided with a gasket strip which is used for preventing the box type test piece from being scratched.

Furthermore, fixed blocks are arranged on two sides of the connecting portion of each upright post and the bottom plate along the sliding direction, and the fixed blocks are connected with the bottom plate in a sliding mode. Set up the fixed block, when the stand slided and targets in place, carry on spacingly through the fixed block that sets up in stand bottom both sides to the stand, prevented that vibration test in-process stand from taking place the skew, guaranteed experimental effective going on.

Furthermore, the bottom plate is made of light metal, and the light metal is light in weight and convenient to carry.

The utility model has the following advantages:

1. the utility model discloses an anchor clamps structure simplify, convenient operation can improve efficiency of software testing greatly, adopts to be slide rail moving mode, realizes that the quick travel box test piece compresses tightly the top, realizes compressing tightly fixedly fast through the lead screw, has removed the loaded down with trivial details step of screwing up the unscrewing bolt many times from, avoids box test piece surface to receive the damage because of loaded down with trivial details operation, and the layering lower surface installs the filler strip additional and reduces the fish tail risk.

2. The utility model discloses a locating lever that sets up is with the rigidity of layering, and the layering can not take place to turn to the skew among the vibration process, and vibration test can go on smoothly.

3. The utility model discloses a set up the fixed block in stand bottom both sides, it is spacing to the stand that slides and target in place, the stand can not take place to squint because of the vibration.

Drawings

FIG. 1 is a schematic view of an assembly structure of a fixture for fixing a box-type test piece for vibration testing according to the present embodiment;

the notation in the figure is: 1. a base plate; 2. a column; 3. a cross beam; 4. a screw rod; 5. layering; 6. positioning a rod; 7. a fixed block; 8. a cushion strip; 9. a box-shaped test piece.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, a fixture for fixing a box-shaped test piece for vibration testing according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the fixture for fixing the box-type test piece for the vibration test of the embodiment includes a bottom plate 1 installed on a test bed, wherein two columns 2 are symmetrically installed on the left side and the right side of the bottom plate 1 respectively, the bottom ends of the columns 2 are slidably connected with the bottom plate 1, the top ends of the columns 2 are fixedly connected with a cross beam 3, and the two columns 2 support the cross beam 3. The middle part of the cross beam 3 is provided with a threaded hole, and after the screw rod 4 is screwed into the threaded hole arranged on the cross beam 3, the lower end of the screw rod 4 is fixedly connected with the pressing strip 5. The box-type test piece 9 clamp is simple in structure, convenient to operate, free of repeated screwing and unscrewing of bolts and simple in use steps. Meanwhile, the surface of the box-type test piece 9 can be prevented from being damaged by complicated operation. The size of the bottom plate 1 is preferably 1200 x 800mm, and the bottom plate is fixed on a test bed by hexagon socket head cap screws. The base plate 1 is made of light metal such as aluminum, so that the weight is reduced, the carrying is convenient, the surface of the base plate 1 can be subjected to anodic oxidation treatment, and the durability is improved.

Positioning rods 6 are respectively arranged on two sides of the screw rod 4, and the positioning rods 6 penetrate through holes formed in the cross beam 3 and are movably connected with the pressing strips 5. The positioning rods 6 arranged on the two sides of the screw rod 4 can fix the pressing strip 5, and the pressing strip 5 can be prevented from steering and deviating in the test process. The lower surface of the pressing strip 5 is provided with a filler strip 8, and the filler strip 8 can be made of rubber to prevent a box-type test piece 9 from being scratched. In order to conveniently screw the screw rod 4, a hand rod is arranged at the top of the screw rod 4, so that the screw rod is conveniently and quickly screwed and fixed.

The lower end of the upright post 2 is provided with a sliding block which is matched with a sliding rail arranged on the bottom plate 1, so that the upright post 2 can slide on the bottom plate 1, and the rapid movement is realized above the box-type test piece 9. The length of the slide rail is preferably 800mm to match the size of the base plate 1. Be equipped with the fixed block 7 with 1 sliding connection of bottom plate in the both sides of stand 2 lower extreme, when stand 2 slided to target in place, it is spacing with stand 2 through the fixed block 7 that sets up in 2 bottom both sides of stand, prevent that test in-process stand 2 from taking place the skew.

It is to be understood that the present invention has been described with reference to the embodiments, and those skilled in the art will recognize that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a vibration test is with anchor clamps of fixed box test piece which characterized in that: the device comprises a bottom plate (1) arranged on a test bed, wherein upright columns (2) are symmetrically arranged on the left side and the right side of the bottom plate (1), the bottom end of each upright column (2) is connected with the bottom plate (1) in a sliding manner, and the upper end of each upright column (2) is fixedly connected with a cross beam (3); the device is characterized by further comprising a screw rod (4), wherein the screw rod (4) is screwed into a threaded hole formed in the cross beam (3) and then is fixedly connected with the pressing strip (5).

2. The jig for fixing a box-type test piece for vibration testing as set forth in claim 1, wherein: the cross beam (3) is further provided with positioning rods (6) arranged on two sides of the screw rod (4), and the positioning rods (6) penetrate through holes in the cross beam (3) and are movably connected with the pressing strips (5).

3. The jig for fixing a box-type test piece for vibration testing as set forth in claim 2, wherein: and a cushion strip (8) is arranged on the lower surface of the pressing strip (5).

4. The jig for fixing a box-shaped test piece for vibration testing as set forth in any one of claims 1 to 3, wherein: the two sides of the connecting part of each upright post (2) and the bottom plate (1) along the sliding direction are provided with fixing blocks (7), and the fixing blocks (7) are connected with the bottom plate (1) in a sliding manner.

5. The jig for fixing a box-type test piece for vibration testing as set forth in claim 4, wherein: the base plate (1) is formed from a lightweight metal.