Nickel-titanium tube size measuring tool
Through the design of nickel-titanium tube size measurement tooling, combined with a digital micrometer and a laser diameter gauge, the problem of inaccurate nickel-titanium tube wall thickness measurement was solved, and precise size control in the nickel-titanium tube production process was achieved.
Patent Information
- Application Number
- CN202423174348.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing technology is unable to accurately measure the wall thickness of nickel-titanium tubes, resulting in uncontrolled dimensions during stent production and the production of substandard finished products.
A nickel-titanium tube size measurement tool was designed, which included a tool base, a micrometer base, a balance frame and a laser diameter gauge. By combining the digital micrometer and the laser diameter gauge, the diameter and wall thickness of the nickel-titanium tube can be accurately measured.
The uniformity measurement of the outer diameter, wall thickness and straightness of the nickel-titanium tube is achieved, ensuring the dimensional accuracy of the produced stents and avoiding unqualified finished products.
Smart Images
Figure CN223485062U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of medical device technology, and more specifically to a nickel-titanium tube dimension measuring tool. Background Technology
[0002] The current technology involves cutting a section of the nickel-titanium tube along its axis and then measuring the wall thickness using a pointed micrometer. The disadvantage is that the micrometer is not accurate enough to accurately measure the actual wall thickness of the nickel-titanium tube, which is relatively small. This can lead to uncontrollable dimensions of the support during production, resulting in defective products. Utility Model Content
[0003] Therefore, this utility model proposes a nickel-titanium tube size measuring fixture to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a nickel-titanium tube dimension measuring fixture, comprising:
[0005] The tooling base has symmetrical notches at its left and right ends;
[0006] Two dial indicator bases are provided and are fixedly installed at the two notches of the tooling base respectively. Each dial indicator base is equipped with a digital dial indicator.
[0007] A balancing frame is fixedly installed at the center of the top surface of the tooling base. A nickel-titanium tube is placed on the balancing frame, and the balancing frame can drive the nickel-titanium tube to rotate at a uniform speed. The side walls of the left and right ends of the nickel-titanium tube are in contact with the measuring heads of two digital micrometers, respectively.
[0008] And a laser diameter gauge, which is fixedly installed on the top surface of the tooling base and located inside the balance frame. The nickel-titanium tube is inserted into the laser diameter gauge and can measure the diameter of the nickel-titanium tube.
[0009] Furthermore, as a preferred embodiment, the dial indicator base is composed of a long horizontal plate, a short horizontal plate, and a vertical plate, wherein a vertically arranged vertical plate connects the long horizontal plate and the short horizontal plate, and the long horizontal plate is fixedly installed in its corresponding notch.
[0010] Furthermore, as a preferred embodiment, the short horizontal plate is provided with a sliding groove, which is adapted to slide into the dial indicator base.
[0011] Furthermore, as a preferred embodiment, a support rod is fixed to one end face of the longitudinal plate facing the balance frame. The support rod can be inserted into the nickel-titanium tube, and a guide ball is fixed to the end of the support rod.
[0012] Furthermore, as a preferred embodiment, the balance frame consists of two tripods, two long shafts, and four rollers. The two tripods are symmetrically arranged and fixedly connected to each other by the two long shafts. Each tripod has two symmetrical rollers rotatably mounted on its top.
[0013] This utility model adopts the above technology and has the following beneficial effects compared with the existing technology:
[0014] 1. In this utility model device, the nickel-titanium tube passes through the laser diameter measuring instrument and is placed on the balance frame. The rollers on the balance frame can rotate the nickel-titanium tube evenly and stably to measure the diameter at multiple positions on the nickel-titanium tube on the laser diameter measuring instrument to ensure the uniformity of the outer diameter of the nickel-titanium tube.
[0015] 2. In this utility model device, two dial indicator bases are pulled out a certain distance along the track so that the nickel-titanium tube can be placed on the ball on the middle rod of the dial indicator base, so that the ball contacts the inner surface of the nickel-titanium tube. The measuring head of the digital dial indicator is placed on the outer surface of the nickel-titanium tube. The rollers on the balance frame can rotate the nickel-titanium tube evenly and stably. The reading on the digital dial indicator is the actual wall thickness of the nickel-titanium tube, ensuring the uniformity of the wall thickness of the nickel-titanium tube.
[0016] 3. In this utility model device, the nickel-titanium tube is placed between the needle of the digital micrometer and the ball on the middle rod of the micrometer base. The nickel-titanium tube can be rotated evenly and stably using the rollers on the balance frame. The reading on the digital display shows the straightness of the nickel-titanium tube. Attached Figure Description
[0017] Figure 1 This is a top view schematic diagram of a nickel-titanium tube dimension measuring fixture;
[0018] Figure 2 This is a front view schematic diagram of a nickel-titanium tube dimension measuring fixture;
[0019] Figure 3 A three-dimensional structural schematic diagram of a nickel-titanium tube dimension measuring fixture;
[0020] Figure 4 A schematic diagram illustrating the use of a nickel-titanium tube dimension measuring fixture;
[0021] Figure 5 This is a schematic diagram of the structure of a balance frame in a nickel-titanium tube dimensional measuring fixture;
[0022] Figure 6 This is a schematic diagram of the micrometer base in a nickel-titanium tube dimensional measuring fixture.
[0023] In the diagram: 1. Tooling base; 2. Laser diameter gauge; 3. Balance frame; 4. Nickel-titanium tube; 5. Digital dial indicator; 6. Dial indicator base; 7. Roller; 8. Tripod; 9. Long shaft; 10. Support rod. Detailed Implementation
[0024] With reference to the accompanying drawings of the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below.
[0025] Example: Please refer to the appendix Figure 1-6 This utility model provides a technical solution: a nickel-titanium tube dimension measuring fixture, which includes:
[0026] Tooling base 1 has symmetrical notches at its left and right ends;
[0027] There are two dial indicator bases 6, which are fixedly installed at the two notches of the tooling base 1 respectively. Each dial indicator base 6 is equipped with a digital dial indicator 5.
[0028] The balance frame 3 is fixedly installed at the center of the top surface of the tooling base 1. The nickel-titanium tube 4 is placed on the balance frame 3, and the balance frame 3 can drive the nickel-titanium tube 4 to rotate at a uniform speed. The side walls of the left and right ends of the nickel-titanium tube 4 are in contact with the measuring heads of the two digital micrometers 5 respectively.
[0029] And a laser diameter gauge 2, which is fixedly installed on the top surface of the tooling base 1 and located inside the balance frame 3. A nickel-titanium tube 4 is inserted into the laser diameter gauge 2, and it can measure the diameter of the nickel-titanium tube 4.
[0030] In this embodiment, the dial indicator base 6 is composed of a long horizontal plate, a short horizontal plate and a vertical plate. The long horizontal plate and the short horizontal plate are connected by a vertically arranged vertical plate, and the long horizontal plate is fixedly installed in the corresponding notch.
[0031] In this embodiment, a sliding groove is provided on the short horizontal plate, and the sliding groove is adapted to slide with the dial indicator base 6.
[0032] In this embodiment, a support rod 10 is fixed on one end face of the longitudinal plate facing the balance frame 3. The support rod 10 can be inserted into the nickel-titanium tube 4, and a guide ball is fixed at the end of the support rod 10.
[0033] In this embodiment, the balance frame 3 consists of two tripods 8, two long shafts 9, and four rollers 7. The two tripods 8 are symmetrically arranged and are fixedly connected by the two long shafts 9. Each tripod 8 has two symmetrical rollers 7 rotatably mounted on its top.
[0034] In the specific implementation, the first step is: the nickel-titanium tube 4 passes through the laser diameter measuring instrument 2 and is placed on the balance frame 3. The rollers on the balance frame can be used to rotate the nickel-titanium tube 4 evenly and stably. The diameter of the nickel-titanium tube 4 at multiple positions on the laser diameter measuring instrument 2 is measured to ensure the uniformity of the outer diameter of the nickel-titanium tube.
[0035] Step 2: Pull the two dial indicator bases 6 a certain distance along the track so that the nickel-titanium tube 4 can be placed on the ball on the middle rod of the dial indicator base 6, so that the ball contacts the inner surface of the nickel-titanium tube 4, and the measuring head of the digital dial indicator 5 is placed on the outer surface of the nickel-titanium tube 4. The rollers on the balance frame can be used to rotate the nickel-titanium tube 4 evenly and stably. The reading on the digital dial indicator 5 is the actual wall thickness of the nickel-titanium tube 4, ensuring the uniformity of the wall thickness of the nickel-titanium tube 4.
[0036] Step 3: Place the nickel-titanium tube 4 between the needle of the digital micrometer 5 and the ball on the middle rod of the micrometer base 6. Use the rollers on the balance frame to rotate the nickel-titanium tube 4 evenly and stably. The reading on the digital display can show the straightness of the nickel-titanium tube.
[0037] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A fixture for measuring the dimensions of nickel-titanium tubes, characterized in that, It includes: The tooling base (1) has symmetrical notches at its left and right ends; Two dial indicator bases (6) are provided and are fixedly installed at the two notches of the tooling base (1). Each dial indicator base (6) is equipped with a digital dial indicator (5). The balance frame (3) is fixedly installed at the center of the top surface of the tooling base (1). A nickel-titanium tube (4) is placed on the balance frame (3), and the balance frame (3) can drive the nickel-titanium tube (4) to rotate at a constant speed. The side walls of the left and right ends of the nickel-titanium tube (4) are in contact with the measuring heads of two digital micrometers (5). And a laser diameter measuring instrument (2), which is fixedly installed on the top surface of the tooling base (1) and located inside the balance frame (3). The nickel-titanium tube (4) is inserted into the laser diameter measuring instrument (2) and can measure the diameter of the nickel-titanium tube (4).
2. The nickel-titanium tube dimension measuring fixture according to claim 1, characterized in that: The dial indicator base (6) is composed of a long horizontal plate, a short horizontal plate and a vertical plate, wherein the long horizontal plate and the short horizontal plate are connected by a vertically arranged vertical plate, and the long horizontal plate is fixedly installed in the corresponding notch.
3. The nickel-titanium tube dimension measuring fixture according to claim 2, characterized in that: The short horizontal plate is provided with a sliding groove, which is adapted to slide into the dial indicator base (6).
4. The nickel-titanium tube dimension measuring fixture according to claim 3, characterized in that: A support rod (10) is fixed on one end face of the longitudinal plate facing the balance frame (3). The support rod (10) can be inserted into the nickel-titanium tube (4), and a guide ball is fixed at the end of the support rod (10).
5. The nickel-titanium tube dimension measuring fixture according to claim 1, characterized in that: The balance frame (3) consists of two tripods (8), two long shafts (9) and four rollers (7). The two tripods (8) are arranged symmetrically and are fixedly connected by the two long shafts (9). Each tripod (8) has two symmetrical rollers (7) rotatably mounted on its top.