CN-224231521-U - Fatigue testing device for super-elastic nickel-titanium alloy wire

Abstract

The utility model relates to the technical field of fatigue detection, in particular to a fatigue testing device for a super-elastic nickel-titanium alloy wire. It includes the mounting bracket body, all is provided with the support leg on the bottom four corners of the mounting bracket body, and mounting bracket body top is provided with the cross fixed plate, is provided with the dog on the mounting bracket body, is provided with in the mounting bracket body and rotates the detection subassembly, rotates the detection subassembly top and is provided with the several clamping component, and the side of every clamping component all is provided with locking subassembly. According to the utility model, the plurality of clamping assemblies are arranged on the rotating plate, so that nickel-titanium alloy wires of different production batches can be simultaneously fixed, in one test process, the nickel-titanium alloy wires of the plurality of batches can be synchronously subjected to fatigue test, each batch does not need to be independently subjected to detection operation, repeated installation of the nickel-titanium alloy wires and debugging equipment parameters are avoided, the detection time is greatly saved, the detection efficiency is remarkably improved, enterprises can rapidly complete detection of the products of the plurality of batches, and the production strategy is timely adjusted according to the results.

Inventors

• XU CHANGCHENG
• RUI PING
• YIN QUANFENG

Assignees

• 常州博康特材科技有限公司

Dates

Publication Date

20260512

Application Date

20250529

Claims (6)

1. 1. The fatigue testing device for the super-elastic nickel-titanium alloy wire comprises a mounting frame body (1), supporting legs (11) are arranged at four corners of the bottom of the mounting frame body (1), a cross fixing plate (10) is arranged at the top of the mounting frame body (1), and the fatigue testing device is characterized in that a stop block (2) is arranged on the mounting frame body (1), a rotation detection assembly (3) is arranged in the mounting frame body (1), a plurality of clamping assemblies (4) are arranged at the top of the rotation detection assembly (3), and anti-loosening assemblies (5) are arranged on the side faces of each clamping assembly (4).
2. 2. The fatigue testing device for the super-elastic nickel-titanium alloy wire, as set forth in claim 1, characterized in that the rotation detecting assembly (3) comprises a rotating shaft (32), the rotating shaft (32) is arranged on the cross fixing plate (10) through a first bearing seat (31), a motor (30) is arranged at the bottom of the mounting frame body (1), a driving end of the motor (30) penetrates through the mounting frame body (1), the driving end of the motor is connected with the bottom end of the rotating shaft (32) through a coupling (33), the rotating shaft (32) is provided with a rotating plate (34), a plurality of clamping assemblies (4) are arranged on the rotating plate (34) at equal intervals, a plurality of sliding grooves (36) are formed in the rotating plate (34) and are respectively positioned in front of the plurality of the clamping assemblies (4), and through grooves (35) are formed in front of each sliding groove (36).
3. 3. The fatigue testing device for the super-elastic nickel-titanium alloy wire according to claim 2, wherein the clamping assembly (4) comprises a pair of mounting plates (40) arranged on the rotating plate (34), a bidirectional screw rod (42) is movably arranged between the two mounting plates (40) through a pair of second bearings (41), a pair of driving rings (44) are symmetrically arranged on the bidirectional screw rod (42), a nut (45) is arranged in the driving rings (44), the nut (45) is arranged on the bidirectional screw rod (42) in a threaded manner, an L-shaped rod (46) is arranged at the front end of the driving rings (44), an arc-shaped clamping block (47) is arranged at the front end of the L-shaped rod (46), anti-skidding threads (48) are arranged in the arc-shaped clamping block (47), a sliding block (49) is arranged at the bottom of the L-shaped rod (46), and the sliding block (49) is arranged in the sliding groove (36).
4. 4. The fatigue testing device for the super-elastic nickel-titanium alloy wire, according to claim 3, is characterized in that a twisting handle (43) is arranged at one end of the bidirectional screw rod (42), the anti-loosening assembly (5) comprises a positive U-shaped block (50), the twisting handle (43) is arranged in the positive U-shaped block (50), screws (51) are symmetrically arranged on two sides of the top of the positive U-shaped block (50), inverted U-shaped blocks (52) are movably arranged on the two screws (51), and the inverted U-shaped blocks (52) are fixed on the screws (51) through nuts (53).
5. 5. The fatigue testing device for the super-elastic nickel-titanium alloy wire according to claim 4, wherein a plurality of rows of holding spines (54) are arranged on the inner wall of the inverted U-shaped block (52).
6. 6. The fatigue testing device for the super-elastic nickel-titanium alloy wire according to claim 1, wherein the baffle block (2) is internally provided with a chute (20).

Description

Fatigue testing device for super-elastic nickel-titanium alloy wire Technical Field The utility model relates to the technical field of fatigue detection, in particular to a fatigue testing device for a super-elastic nickel-titanium alloy wire. Background In various fields of medical appliances, aerospace and the like, the super-elastic nickel-titanium alloy wire is widely applied by virtue of the unique properties. The fatigue strength is taken as a key quality index, and the reliability and the safety of the final product are directly related, so that the accurate detection of the fatigue strength of the nickel-titanium alloy wire is particularly important. At present, the existing nickel-titanium alloy wire fatigue testing device in the market has obvious defects. Only a single production lot of nitinol wires can be tested at a time, which means that the test operation needs to be repeated for multiple lots of products to be tested. And each time the production batch is replaced, the nickel-titanium alloy wire is required to be reinstalled and the parameters of equipment are adjusted, and the whole process is tedious and time-consuming. For enterprises with large production scale and numerous batches, the detection mode has extremely low efficiency, so that the detection period of products is prolonged, and the time cost and the labor cost are greatly increased. Disclosure of Invention The utility model aims to provide a fatigue testing device for a super-elastic nickel-titanium alloy wire, which is used for solving the problems in the background technology. In order to achieve the above purpose, the utility model provides the following technical scheme, which comprises a mounting frame body, wherein supporting legs are arranged at four corners of the bottom of the mounting frame body, a cross fixing plate is arranged at the top of the mounting frame body, a stop block is arranged on the mounting frame body, a rotation detection assembly is arranged in the mounting frame body, a plurality of clamping assemblies are arranged at the top of the rotation detection assembly, and anti-loosening assemblies are arranged on the side surfaces of each clamping assembly. As the preferable rotation detection assembly of the utility model, the rotation detection assembly comprises a rotating shaft, the rotating shaft is arranged on a cross fixed plate through a first bearing seat, a motor is arranged at the bottom of the mounting frame body, a driving end of the motor penetrates through the mounting frame body, the driving end of the motor is connected with the bottom end of the rotating shaft through a coupler, a rotating plate is arranged on the rotating shaft, a plurality of clamping assemblies are arranged on the rotating plate at equal intervals, a plurality of sliding grooves are formed in the rotating plate, the sliding grooves are respectively positioned in front of the clamping assemblies, and through grooves are formed in front of each sliding groove. As the preferable mode of the utility model, the clamping assembly comprises a pair of mounting plates arranged on the rotating plate, a bidirectional screw rod is movably arranged between the two mounting plates through a pair of second bearings, a pair of driving rings are symmetrically arranged on the bidirectional screw rod, nuts are arranged in the driving rings, the nuts are arranged on the bidirectional screw rod in a threaded manner, the front end of each driving ring is provided with an L-shaped rod, the front end of each L-shaped rod is provided with an arc-shaped clamping block, anti-skid threads are arranged in each arc-shaped clamping block, and a sliding block is arranged at the bottom of each L-shaped rod and is arranged in each sliding groove. As preferable in the utility model, one end of the bidirectional screw rod is provided with a twisting handle, the anti-loosening assembly comprises a positive U-shaped block, the twisting handle is arranged in the positive U-shaped block, screws are symmetrically arranged on two sides of the top of the positive U-shaped block, two screws are movably provided with inverted U-shaped blocks, and the inverted U-shaped blocks are fixed on the screws through nuts. As preferable in the utility model, the inner wall of the inverted U-shaped block is provided with a plurality of rows of thorns. Preferably, the baffle is internally provided with a chute. Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: According to the utility model, the plurality of clamping assemblies are arranged on the rotating plate, so that nickel-titanium alloy wires of different production batches can be simultaneously fixed, in one test process, the nickel-titanium alloy wires of the plurality of batches can be synchronously subjected to fatigue test, each batch does not need to be independently subjected to detection operation, repeated installation of the nick