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Bending test device and using method

A bending test and platform placement technology, which is applied in the direction of measuring devices, using stable bending force to test the strength of materials, instruments, etc., can solve the problems of complex structure, poor operation stability and reliability, and limited application range, etc., to achieve the structure of the device Simple, stable and reliable operation, convenient mobile positioning effect

Pending Publication Date: 2021-02-02
XIAN AEROSPACE PROPULSION TESTING TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing bending testing machine has a complex structure, poor operation stability and reliability, which seriously affects the bending test effect, and the installation and maintenance are very complicated. The three-point bending test needs to place the specimen on two support points with a certain distance, different specifications The workpieces need to be placed at different distances, and the existing bending testing machines cannot meet the needs of workpieces of various specifications, thus greatly limiting its application range

Method used

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  • Bending test device and using method
  • Bending test device and using method
  • Bending test device and using method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In order to overcome the problems of complex structure of the existing bending testing machine, cumbersome bending test operation for different workpieces, and poor adaptability, the present invention provides such figure 1 The bending test device shown in the present invention can adapt to the bending test operation of different workpieces by adjusting the distance between two movable workpiece placement platforms. The device has a simple structure and stable and reliable operation.

[0031] Such as figure 1 , figure 2 , image 3 As shown, a bending test device includes a base 1, a frame 2, a linear guide rail 3, a first workpiece placement platform 4, a second workpiece placement platform 5, and a platform position adjustment mechanism, wherein:

[0032] The platform position adjustment mechanism includes a hand wheel 6, a bearing 7, a bearing seat 10, a fixing clip 8 and a ball screw 9, and the bearing seat 10 is fixedly installed on the side of the frame 2, and t...

Embodiment 2

[0036] Preferably, on the basis of Embodiment 1, in this embodiment, preferably, the first workpiece placement platform 4 includes a first slider 41, a first support shaft 42, a first adapter plate 43, a first belt Seat bearing 44, first nut 45, first sliding seat 46 and right nut seat 47; described first sliding block 41 is connected with described linear guide rail 3, and described first sliding seat 46 is fixedly installed on described first sliding block On the block 41, the right nut seat 47 is fixedly installed on the bottom surface of the first slide seat 46, one end of the first nut 45 is installed on the right nut seat 47, and the other end is installed on the ball screw 9 , the first adapter plate 43 is fixedly installed on the first sliding seat 46, the first belt seat bearing 44 is respectively fixedly installed on both ends of the first adapter plate 43, and the first support shaft 42 is mounted on the first belt unit bearing 44 .

[0037] The second workpiece pl...

Embodiment 3

[0048] On the basis of embodiment 2, a kind of using method of bending test device, concrete steps are as follows:

[0049] S1: Installation of the workpiece to be tested;

[0050] Place the workpiece 11 to be measured on the first support shaft 42 of the first workpiece placement platform 4 and the second support shaft 52 of the second workpiece placement platform 5;

[0051] S2: adjust the platform position;

[0052] By turning the hand wheel 6, the ball screw 9 is driven to rotate, and the ball screw 9 drives the first nut 45 and the second nut 55 to move in reverse synchronously, thereby driving the first sliding seat 46 to move rightward along the linear guide rail 3, and at the same time Drive the second sliding seat 56 to move synchronously to the left along the linear guide rail 3, thereby realizing the distance adjustment between the first supporting shaft 42 installed on the first sliding seat 46 and the second supporting shaft 52 installed on the second sliding sea...

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Abstract

The invention belongs to the technical field of engineering testing, and particularly relates to a bending test device and a using method. The bending test device comprises a base, a machine frame, alinear guide rail, a first workpiece placing platform, a second workpiece placing platform and a platform position adjusting mechanism, the platform position adjusting mechanism comprises a hand wheel, a bearing, a bearing seat, a fixing clamp and a ball screw, and the machine frame is fixedly installed on the base. The linear guide rail is fixedly arranged on the machine frame, and the first workpiece placing platform and the second workpiece placing platform are respectively connected with the ball screw and are arranged on the linear guide rail in a sliding way. The distance between the twomovable workpiece placing platforms is adjusted through the platform position adjusting mechanism so as to adapt to bending test operation of different workpieces, and the device is simple in structure and stable and reliable in operation.

Description

technical field [0001] The invention belongs to the technical field of engineering testing, in particular to a bending test device and a using method. Background technique [0002] The bending test of metal materials is mainly used to measure the bending strength of brittle and low-plastic materials and can reflect the deflection of the plastic index. The bending test is carried out on a universal material machine, and there are two loading methods of three-point bending and four-point bending. For brittle materials, the bending test generally only produces a small amount of plastic deformation and can be destroyed, while for plastic materials, the bending fracture strength cannot be measured, but its ductility and uniformity can be tested. Among them, the three-point bending test is to place the specimen on two support points with a certain distance, apply a downward load to the specimen at the midpoint of the two support points, and when the three contact points of the spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/20G01N3/04
CPCG01N3/04G01N3/20
Inventor 张超梁田
Owner XIAN AEROSPACE PROPULSION TESTING TECH RES INST
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