CN-224231500-U - Non-contact test device for testing high-temperature performance of wire rod

Abstract

The utility model discloses a non-contact test device for testing high-temperature performance of a wire rod, which comprises an environment box and a mounting rod, wherein the mounting rod is arranged at the front part of a box door of the environment box, quartz glass is embedded in the center of the box door of the environment box, two fixing frames are arranged outside the mounting rod, an adjustable adjusting frame is connected between the two fixing frames, a video extensometer and a green light source are arranged on the adjusting frame, the green light source is arranged at the side edge position of the front part of the video extensometer, an upper chuck and a lower chuck are respectively connected at the upper and lower positions inside the environment box through sleeves, the upper chuck and the lower chuck are symmetrically arranged, conical cavities are respectively formed inside the upper chuck and the lower chuck, and two wedge blocks are symmetrically embedded inside the conical cavities.

Inventors

• CAO YANMIN
• LIANG XIBING
• MENG FANZHUO
• CUI WENMING
• LI ZHUTIE
• GUO FEI
• JIANG LIN
• ZHANG DIANKUI

Assignees

• 国合通用(青岛)测试评价有限公司

Dates

Publication Date

20260512

Application Date

20250519

Claims (6)

1. 1. The utility model provides a non-contact test wire rod high temperature performance's test device, includes environment case (1) and installation pole (3), installation pole (3) set up the front portion at the chamber door of environment case (1), a serial communication port, quartz glass (2) are inlayed at the chamber door center of environment case (1), and the outside of installation pole (3) is installed two mount (4), is connected with adjustable alignment jig (5) between two mount (4), is provided with video extensometer (6) and green light source (7) on alignment jig (5), and green light source (7) set up the anterior side position at video extensometer (6); The upper and lower positions of the interior of the environment box (1) are respectively connected with an upper chuck (8) and a lower chuck (9) through sleeves, the upper chuck (8) and the lower chuck (9) are symmetrically arranged, conical cavities (10) are respectively formed in the upper chuck (8) and the lower chuck (9), two wedge-shaped blocks (11) are symmetrically embedded in the conical cavities (10), and middle grooves (12) are respectively formed in the middle line positions of the opposite side faces of the two wedge-shaped blocks (11).
2. 2. The non-contact test device for testing the high-temperature performance of the wire rod, which is disclosed in claim 1, is characterized in that limiting plates are embedded on two sides of the front parts of the upper clamping head (8) and the lower clamping head (9) through fixing bolts.
3. 3. The non-contact test device for testing high-temperature performance of wires according to claim 1, wherein the middle groove (12) is arranged in a 1/3 circular arc shape.
4. 4. The non-contact test device for testing high-temperature performance of wires according to claim 1, wherein the adjusting frame (5) comprises a movable block (13), a screw rod (15) and two guide rods (14) are arranged in the movable block (13) penetrating through the side edges of the two fixing frames (4), the guide sleeve and the screw sleeve are respectively matched with the guide rods (14) and the screw rod (15), the movable arm (16) is connected to the outer part of the movable block (13) through a rotating shaft, a sliding groove plate (17) is fixedly connected to the tail end of the movable arm (16), a sliding block (18) is slidably connected to the inner side of the top of the sliding groove plate (17), and a connecting seat (19) is fixedly connected to the top of the sliding block (18).
5. 5. The non-contact test device for testing the high-temperature performance of the wire rod according to claim 4, wherein the bottom of the video extensometer (6) is movably connected with the connecting seat (19) through a damping rotating shaft.
6. 6. The non-contact test device for testing the high-temperature performance of the wire rod according to claim 5, wherein the video extensometer (6) is opposite to the quartz glass (2), and the green light source (7) is fixedly arranged at the position close to the side of the tail end of the chute plate (17).

Description

Non-contact test device for testing high-temperature performance of wire rod Technical Field The utility model relates to the field of wire testing, in particular to a non-contact test device for testing high-temperature performance of a wire. Background ‌ Metal wires are widely applied in a plurality of fields, mainly including electric power, communication, construction, aerospace, mechanical manufacturing and the like, for example, steel wires such as QS87Mn, QS92Si and the like can be reprocessed for use after being rolled, drawn into steel wires with various specifications and twisted into steel wires, and can be used for bridge high-strength cables, and the wires are selected for coping with different environments and loads, so the detection of the mechanical properties of the wires is particularly important. In the traditional wire high-temperature tensile property detection process, the chuck adopts a rigid clamping or hydraulic locking mode, and the following problems exist: 1. the clamping force is uneven, which is easy to cause the surface scratch or deformation of the wire rod; 2. stress concentration, namely, the local stress of a clamping area is overlarge, so that the mechanical property of the wire is affected; 3. the adaptability is poor, wires with different diameters or materials are difficult to adapt, the coaxiality is poor, and the replacement cost is high. In the process of high-temperature tensile test of the wire rod, the phenomena of jaw breakage, slipping, coaxial abnormality and the like are extremely easy to occur, so that detection data are invalid, and the tensile property of the material cannot be accurately estimated. In the prior art, part of the improvement scheme improves the clamping force through adding a friction plate or a spring structure, but the structure is complex and the maintenance is difficult. In addition, in the test process of the traditional contact extensometer, the sample is locally deformed due to the influence of dead weight, the axial strain measurement error is increased, and the contact extensometer is very easy to cause defects on the surface of the sample for the sample with softer materials, so that abnormal fracture is caused. Meanwhile, the clamping structure of the contact extensometer is limited, and for small-diameter samples, the sliding and excessive clamping cannot be just eliminated. Therefore, a non-contact test device for testing the high-temperature performance of the wire rod is needed, which can uniformly distribute clamping force, avoid the introduction of lateral force, reduce wire rod damage and simplify operation. Disclosure of utility model The utility model mainly aims to provide a non-contact test device for testing high-temperature performance of a wire rod, which can effectively solve the problems pointed out in the background technology. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The non-contact test device for testing the high-temperature performance of the wire comprises an environment box and a mounting rod, wherein the mounting rod is arranged at the front part of a box door of the environment box, quartz glass is embedded in the center of the box door of the environment box, two fixing frames are mounted outside the mounting rod, an adjustable adjusting frame is connected between the two fixing frames, a video extensometer and a green light source are arranged on the adjusting frame, and the green light source is arranged at the side edge position of the front part of the video extensometer; The upper and lower positions of the interior of the environment box are respectively connected with an upper chuck and a lower chuck through sleeves, the upper chuck and the lower chuck are symmetrically arranged, conical cavities are formed in the upper chuck and the lower chuck, two wedge-shaped blocks are symmetrically embedded in the conical cavities, and middle grooves are formed in the middle line positions of the opposite side faces of the two wedge-shaped blocks. As a further scheme of the utility model, limiting plates are embedded on the two sides of the front parts of the upper chuck and the lower chuck through fixing bolts. As a further scheme of the utility model, the middle groove is arranged in a 1/3 circular arc shape. As a further scheme of the utility model, the adjusting frame comprises a movable block, a screw rod and two guide rods are arranged penetrating through the side edges of the two fixing frames and the inside of the movable block, a guide sleeve and a threaded sleeve which are respectively matched with the guide rods and the screw rod are arranged inside the movable block, a movable arm is connected to the outside of the movable block through a rotating shaft, the tail end of the movable arm is fixedly connected with a sliding groove plate, a sliding block is connected to the inner side of the top of the sliding groove plate in a sliding mo