Device for detecting bending strength of nickel-titanium alloy wire

Abstract

The utility model provides a device for detecting the bending strength of a nickel-titanium alloy wire, which relates to the technical field of nickel-titanium alloy wire detection and comprises a bottom plate, a connecting plate is fixed on one side surface of the bottom plate, and a first supporting plate for supporting the nickel-titanium alloy wire is arranged on one side surface of the connecting plate. According to the device for detecting the bending strength of the nickel-titanium alloy wire, when a first supporting plate is moved upwards, a sliding rod moves in a sliding groove, a positioning rod is pushed through a pressure spring to fix the position of the sliding rod, so that the length of the nickel-titanium alloy wire is measured through a length scale rod on the surface of the first supporting plate, and then a transmission rod is moved upwards; the first supporting plate is rotated to drive the sliding rod to move, the first supporting plate can be stored to one side of the connecting plate, the detected nickel-titanium alloy wire droops, the bending strength of the nickel-titanium alloy wire is measured through the radian scale rod on the surface of the second supporting plate, and the accuracy of nickel-titanium alloy wire data detection is improved.

Description

Technical Field

[0001] This utility model relates to a nickel-titanium alloy wire testing device, specifically a nickel-titanium alloy wire bending strength testing device, belonging to the field of nickel-titanium alloy wire testing technology. Background Technology

[0002] Nickel-titanium alloy is a shape memory alloy, a special alloy that can automatically restore its original shape after plastic deformation at a specific temperature. It has good plasticity and its corrosion resistance is better than the best medical stainless steel currently available. Therefore, it can meet the application needs of various engineering and medical fields and is an excellent functional material.

[0003] Chinese patent application publication number CN220772823U discloses a device for testing the bending strength of nickel-titanium alloy wire. This device uses a hydraulic cylinder to move a telescopic rod left and right, causing a slider to slide left and right along the sliding grooves inside two clamping plates. This allows the clamping plates to tighten or loosen one end of the nickel-titanium alloy wire, preventing the wire of different diameters from shifting.

[0004] Although the above-mentioned patent solution can fix nickel-titanium alloy wires of different diameters, the detection device in the above-mentioned patent can only detect the curvature of the nickel-titanium alloy wire. The degree of bending of the nickel-titanium alloy wire is closely related to its length. When the detection length of the nickel-titanium alloy wire is inconsistent, its degree of bending will also be different.

[0005] Therefore, a device for testing the bending strength of nickel-titanium alloy wire is proposed here. Utility Model Content

[0006] This invention proposes a device for testing the bending strength of nickel-titanium alloy wire, in order to solve the problem that existing testing devices are not convenient for measuring the length and curvature of the nickel-titanium alloy wire to be tested.

[0007] This utility model is achieved through the following technical solution: a device for testing the bending strength of a nickel-titanium alloy wire, comprising a base plate, a connecting plate fixed to one side of the base plate, a first support plate for supporting the nickel-titanium alloy wire on one side of the connecting plate, and a support assembly for supporting the angle of the first support plate on one side of the connecting plate. The support assembly includes a connecting block fixed to one side of the connecting plate, two movable frames rotatably connected to the top of the connecting block, a sliding groove provided inside the movable frame, a sliding rod slidably connected inside the sliding groove, a support rod fixedly sleeved around the sliding rod, and the bottom end of the support rod rotatably connected to the bottom end of the connecting block.

[0008] Furthermore, the first support plate is fixed to one side of the movable frame, and a set of length scale rods are evenly fixed to the side of the first support plate away from the movable frame.

[0009] Furthermore, the support assembly also includes a transmission groove formed on the bottom surface of the movable frame. A positioning block is fixed on the bottom surface of the movable frame. A positioning rod is rotatably connected to one side of the positioning block. The top end of the positioning rod passes through the transmission groove and extends into the interior of the slide groove. A transmission rod is fixed to the bottom end of the positioning rod.

[0010] Furthermore, the support assembly also includes a support frame fixed to the bottom surface of the movable frame, and a compression spring is fixed between the support frame and the top end of the positioning rod.

[0011] Furthermore, a second support plate is fixed to one side of the base plate, and a set of arc-shaped scale rods are evenly fixed to one side of the second support plate.

[0012] The top of the connecting plate is provided with a positioning component for fixing the nickel-titanium alloy wire to be tested. The positioning component includes a forward and reverse motor fixed to the top surface of the connecting plate. A conical drive wheel is fixed to the output end of the forward and reverse motor. A first conical driven wheel is meshed around the periphery of the conical drive wheel. A transmission sleeve is fixedly sleeved inside the first conical driven wheel. The end of the transmission sleeve away from the first conical driven wheel rotates through the connecting plate and is fixed with a first clamping rod. The end of the first clamping rod away from the transmission sleeve is fixed with a first anti-slip plate.

[0013] Furthermore, the positioning assembly also includes a rotating rod rotatably sleeved inside the connecting plate. One end of the rotating rod rotatably passes through the transmission sleeve and is fixedly sleeved with a second conical driven wheel. The second conical driven wheel meshes with the periphery of the conical driving wheel. A second clamping rod is fixed to the periphery of the rotating rod, and a second anti-slip plate is fixed to the end of the second clamping rod away from the rotating rod.

[0014] This invention provides a device for testing the bending strength of nickel-titanium alloy wire, which has the following advantages:

[0015] 1. This nickel-titanium alloy wire bending strength testing device, when the first support plate is moved upward, causes the slide rod to move inside the slide groove. The positioning rod is fixed by the compression spring, so that the length of the nickel-titanium alloy wire can be measured by the length scale rod on the surface of the first support plate. Then, the transmission rod is moved upward and the first support plate is rotated to drive the slide rod to move, so that the first support plate can be stored on one side of the connecting plate, so that the nickel-titanium alloy wire being tested hangs down. The bending strength of the nickel-titanium alloy wire is measured by the arc scale rod on the surface of the second support plate, thereby improving the accuracy of the nickel-titanium alloy wire data detection.

[0016] 2. The nickel-titanium alloy wire bending strength testing device starts a forward and reverse motor to drive the cone drive wheel to rotate, which in turn drives the transmission sleeve to rotate through the first cone driven wheel. Simultaneously, the cone drive wheel drives the second cone driven wheel to rotate, which in turn drives the rotating rod to rotate. The transmission sleeve and the rotating rod can drive the first and second anti-slip plates to rotate simultaneously. The first and second anti-slip plates can be replaced according to their shapes and sizes to be tested, which can fix one end of the nickel-titanium alloy wire and increase the stability of the nickel-titanium alloy wire's position during testing. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the connecting plate and the first support plate in this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the support component in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the positioning component in this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Base plate; 2. Connecting plate; 3. First support plate; 4. Length scale rod;

[0023] 5. Support assembly; 51. Connecting block; 52. Moving frame; 521. Slide groove; 522. Transmission groove; 53. Support rod; 54. Slide rod; 55. Positioning block; 56. Positioning rod; 57. Support frame; 58. Compression spring; 59. Transmission rod;

[0024] 6. Second support plate; 7. Curved scale rod;

[0025] 8. Positioning assembly; 80. Forward and reverse motor; 81. Conical drive wheel; 82. First conical driven wheel; 83. Transmission sleeve; 84. First clamping rod; 85. First anti-slip plate; 86. Second conical driven wheel; 87. Rotating rod; 88. Second clamping rod; 89. Second anti-slip plate. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0027] Please see Figures 1-4 The present invention proposes the following implementation scheme: a nickel-titanium alloy wire bending strength testing device, including a base plate 1, a connecting plate 2 fixed on one side of the base plate 1, a first support plate 3 for supporting the nickel-titanium alloy wire on one side of the connecting plate 2, and a support assembly 5 for supporting the angle of the first support plate 3 on one side of the connecting plate 2. The support assembly 5 includes a connecting block 51 fixed on one side of the connecting plate 2, two movable frames 52 rotatably connected to the top of the connecting block 51, a sliding groove 521 opened inside the movable frame 52, a sliding rod 54 slidably connected inside the sliding groove 521, a support rod 53 fixedly sleeved around the sliding rod 54, and the bottom end of the support rod 53 rotatably connected to the bottom end of the connecting block 51.

[0028] Please refer to this carefully. Figure 2 The first support plate 3 is fixed to one side of the movable frame 52, and a set of length scale rods 4 are evenly fixed on the side of the first support plate 3 away from the movable frame 52.

[0029] In the above scheme, when the first support plate 3 is moved upward, the slide rod 54 moves inside the slide groove 521. The positioning rod 56 is pushed by the compression spring 58 to fix the position of the slide rod 54, so that the length of the nickel-titanium alloy wire can be measured by the length scale rod 4 on the surface of the first support plate 3.

[0030] Please refer to this carefully. Figure 3 The support assembly 5 also includes a transmission groove 522 formed on the bottom surface of the movable frame 52. A positioning block 55 is fixed on the bottom surface of the movable frame 52. A positioning rod 56 is rotatably connected to one side of the positioning block 55. The top end of the positioning rod 56 passes through the transmission groove 522 and extends into the interior of the slide groove 521. A transmission rod 59 is fixed to the bottom end of the positioning rod 56.

[0031] The support assembly 5 also includes a support frame 57 fixed to the bottom surface of the movable frame 52, and a compression spring 58 is fixed between the support frame 57 and the top end of the positioning rod 56.

[0032] Please refer to this carefully. Figure 1 A second support plate 6 is fixed to one side of the base plate 1, and a set of arc scale rods 7 are evenly fixed to one side of the second support plate 6.

[0033] In the above scheme, the transmission rod 59 is moved upward, so that the positioning rod 56 slides inside the transmission groove 522. The first support plate 3 is rotated, and the sliding rod 54 is driven to slide inside the sliding groove 521. When the sliding rod 54 moves to the other end of the sliding groove 521, the first support plate 3 can be stored on one side of the connecting plate 2, so that the tested nickel-titanium alloy wire hangs down with the first anti-slip plate 85 and the second anti-slip plate 89 as the center. The bending strength of the nickel-titanium alloy wire is measured by the arc scale rod 7 on the surface of the second support plate 6.

[0034] Please refer to this carefully. Figure 4 The top of the connecting plate 2 is provided with a positioning component 8 for fixing the nickel-titanium alloy wire to be tested. The positioning component 8 includes a forward and reverse motor 80 fixed on the top surface of the connecting plate 2. A conical drive wheel 81 is fixed at the output end of the forward and reverse motor 80. A first conical driven wheel 82 is meshed around the periphery of the conical drive wheel 81. A transmission sleeve 83 is fixedly sleeved inside the first conical driven wheel 82. The end of the transmission sleeve 83 away from the first conical driven wheel 82 rotates through the connecting plate 2 and is fixed with a first clamping rod 84. A first anti-slip plate 85 is fixed at the end of the first clamping rod 84 away from the transmission sleeve 83.

[0035] The positioning assembly 8 also includes a rotating rod 87 rotatably sleeved inside the connecting plate 2. One end of the rotating rod 87 rotatably passes through the transmission sleeve 83 and is fixedly sleeved with a second conical driven wheel 86. The second conical driven wheel 86 meshes with the periphery of the conical driving wheel 81. A second clamping rod 88 is fixed to the periphery of the rotating rod 87. A second anti-slip plate 89 is fixed to the end of the second clamping rod 88 away from the rotating rod 87.

[0036] In the above scheme, the forward and reverse motor 80 is started to drive the cone drive wheel 81 to rotate, and the first cone driven wheel 82 drives the transmission sleeve 83 to rotate. At the same time, the cone drive wheel 81 drives the second cone driven wheel 86 to rotate, and the second cone driven wheel 86 drives the rotating rod 87 to rotate. The transmission sleeve 83 and the rotating rod 87 can drive the first anti-slip plate 85 and the second anti-slip plate 89 to rotate simultaneously, respectively. The first anti-slip plate 85 and the second anti-slip plate 89 can be replaced according to the shape and size of the first anti-slip plate 85 and the second anti-slip plate 89 to be tested, and one end of the nickel-titanium alloy wire can be fixed.

[0037] In use, the nickel-titanium alloy wire to be tested is placed on the first support plate 3, with one end positioned between the first anti-slip plate 85 and the second anti-slip plate 89. The forward and reverse motor 80 is started to drive the cone drive wheel 81 to rotate, which in turn drives the transmission sleeve 83 to rotate via the first cone driven wheel 82. Simultaneously, the cone drive wheel 81 drives the second cone driven wheel 86 to rotate, which in turn drives the rotating rod 87 to rotate. The transmission sleeve 83 and the rotating rod 87 can respectively drive the first anti-slip plate 85 and the second anti-slip plate 89 to rotate simultaneously. The first anti-slip plate 85 and the second anti-slip plate 89 can be replaced according to their shape and size, which can fix one end of the nickel-titanium alloy wire and increase the stability of the nickel-titanium alloy wire's position during testing. When the first support plate 3 is moved upward, the slide rod 54 moves inside the slide groove 521. The positioning rod 56 is pushed by the compression spring 58 to fix the position of the slide rod 54, so that the length of the nickel-titanium alloy wire can be measured by the length scale rod 4 on the surface of the first support plate 3. Then, the transmission rod 59 is moved upward, so that the positioning rod 56 slides inside the transmission groove 522. The first support plate 3 is rotated, and the slide rod 54 is driven to slide inside the slide groove 521. When the slide rod 54 moves to the other end of the slide groove 521, the first support plate 3 can be stored on one side of the connecting plate 2, so that the nickel-titanium alloy wire being tested hangs down with the first anti-slip plate 85 and the second anti-slip plate 89 as the center. The bending strength of the nickel-titanium alloy wire is measured by the arc scale rod 7 on the surface of the second support plate 6, thereby improving the accuracy of the nickel-titanium alloy wire data detection.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for testing the bending strength of a nickel-titanium alloy wire, comprising a base plate (1), characterized in that: A connecting plate (2) is fixed on one side of the base plate (1). A first support plate (3) is provided on one side of the connecting plate (2) to support the nickel-titanium alloy wire. A support assembly (5) is provided on one side of the connecting plate (2) to support the angle of the first support plate (3). The support assembly (5) includes a connecting block (51) fixed on one side of the connecting plate (2). Two movable frames (52) are rotatably connected to the top of the connecting block (51). A sliding groove (521) is provided inside the movable frame (52). A sliding rod (54) is slidably connected inside the sliding groove (521). A support rod (53) is fixedly sleeved on the periphery of the sliding rod (54). The bottom end of the support rod (53) is rotatably connected to the bottom end of the connecting block (51). The top of the connecting plate (2) is provided with a positioning component (8) for fixing the nickel-titanium alloy wire to be tested. The positioning component (8) includes a forward and reverse motor (80) fixed on the top surface of the connecting plate (2). A cone drive wheel (81) is fixed at the output end of the forward and reverse motor (80). A first cone driven wheel (82) is meshed around the outer periphery of the cone drive wheel (81). A transmission sleeve (83) is fixedly sleeved inside the first cone driven wheel (82). The end of the transmission sleeve (83) away from the first cone driven wheel (82) rotates through the connecting plate (2) and is fixed with a first clamping rod (84). The end of the first clamping rod (84) away from the transmission sleeve (83) is fixed with a first anti-slip plate (85).

2. The device for testing the bending strength of a nickel-titanium alloy wire according to claim 1, characterized in that: A second support plate (6) is fixed to one side of the base plate (1), and a set of arc scale rods (7) are evenly fixed to one side of the second support plate (6).

3. The device for testing the bending strength of a nickel-titanium alloy wire according to claim 1, characterized in that: The first support plate (3) is fixed on one side of the movable frame (52), and a set of length scale rods (4) are evenly fixed on the side of the first support plate (3) away from the movable frame (52).

4. The device for testing the bending strength of a nickel-titanium alloy wire according to claim 1, characterized in that: The support assembly (5) also includes a transmission groove (522) formed on the bottom surface of the movable frame (52). A positioning block (55) is fixed on the bottom surface of the movable frame (52). A positioning rod (56) is rotatably connected to one side of the positioning block (55). The top end of the positioning rod (56) passes through the transmission groove (522) and extends into the interior of the slide groove (521). A transmission rod (59) is fixed at the bottom end of the positioning rod (56).

5. The device for testing the bending strength of a nickel-titanium alloy wire according to claim 1, characterized in that: The support assembly (5) also includes a support frame (57) fixed to the bottom surface of the movable frame (52), and a compression spring (58) is fixed between the support frame (57) and the top end of the positioning rod (56).

6. The device for testing the bending strength of a nickel-titanium alloy wire according to claim 1, characterized in that: The positioning component (8) further includes a rotating rod (87) rotatably sleeved inside the connecting plate (2). One end of the rotating rod (87) rotatably passes through the transmission sleeve (83) and is fixedly sleeved with a second conical driven wheel (86). The second conical driven wheel (86) meshes with the periphery of the conical driving wheel (81). A second clamping rod (88) is fixed to the periphery of the rotating rod (87). A second anti-slip plate (89) is fixed to the end of the second clamping rod (88) away from the rotating rod (87).

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