Automatic limiting device for polishing medical titanium and titanium alloy rod
By using the vibration damping components of the automatic limit device and the V-shaped guide groove structure, combined with the PLC controller and synchronous polishing components, the vibration and displacement problems in the polishing process of titanium and titanium alloy rods are solved, achieving efficient and uniform polishing results, and improving surface quality and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN SHENGTAI METAL MATERIALS CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
Smart Images
Figure CN224407224U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of polishing and grinding technology, and specifically relates to an automatic limiting device for polishing medical titanium and titanium alloy rods. Background Technology
[0002] Medical-grade titanium and titanium alloys are widely used in medical devices such as orthopedic implants and dental implants due to their excellent biocompatibility, corrosion resistance, and mechanical properties. As a key raw material, its rods require extremely high standards for surface finish, polishing uniformity, and dimensional accuracy (surface roughness typically needs to reach Ra≤0.2μm).
[0003] Currently, traditional titanium and titanium alloy bar polishing equipment mainly suffers from the following technical defects: First, during the polishing process, the bars are easily affected by factors such as fluctuations in feeding tension and uneven polishing force, resulting in axial vibration or radial displacement, leading to scratches, local over-grinding, or under-grinding on the surface, making it difficult to meet the precision requirements for medical-grade products; Second, existing guide channels mostly adopt planar or U-shaped structures, which lack sufficient guiding precision for the bars, making them prone to deviating from the polishing centerline and exacerbating polishing unevenness; Third, the grinding wheels and support wheels of the polishing components are mostly driven by independent motors, resulting in poor synchronization and easy generation of speed differences, causing unstable polishing pressure on the bar surface; Fourth, the feeding and receiving processes lack effective buffering, and the bars are prone to minor deformation or surface scratches due to impact when in contact with the equipment, further reducing the yield.
[0004] Therefore, developing an automatic limiting device that can dynamically control the stable operation of the rod, improve polishing uniformity and surface quality is of great significance for improving the processing efficiency and product qualification rate of medical titanium and titanium alloy rods. Summary of the Invention
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic limiting device for polishing medical titanium and titanium alloy rods, comprising a first vibration damping component, a polishing component, and a second vibration damping component sequentially arranged on a mounting base along the polishing process of titanium and titanium alloy rods;
[0006] The first vibration damping component and the second vibration damping component have the same structure, both including a support frame. The support frame is fixedly installed on the mounting base. A guide groove is provided inside the support frame. One end of an electric telescopic rod is provided at the top of the support frame, and a pressure roller is provided at the other end of the electric telescopic rod. A proximity switch is provided on the side of the support frame.
[0007] As a further improvement of this utility model, it also includes a PLC controller, which is connected to the proximity switch of the first vibration damping component and the second vibration damping component and the electric telescopic rod via a signal line. The PLC controller is used to receive the proximity switch signal, control the extension and retraction of the electric telescopic rod, and adjust the contact pressure between the pressure roller and the titanium alloy rod.
[0008] As a further improvement of this utility model, the guide groove has a V-shaped structure.
[0009] As a further improvement of this utility model, the polishing assembly includes a polishing flap wheel and a polishing support wheel, the polishing flap wheel and the polishing support wheel are respectively located on both sides of the titanium alloy rod and are mounted on the mounting base.
[0010] As a further improvement of this utility model, the polishing flap wheel and the polishing support wheel are connected by a synchronous belt and driven by the same motor.
[0011] As a further improvement of this utility model, a wire feeding component is provided at the end of the first vibration damping component away from the polishing component, and a wire take-up component is provided at the end of the second vibration damping component away from the polishing component.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] Through the synergistic effect of the first and second vibration damping components, combined with the smooth feeding and taking-up of the wire feeding and taking-up components, the vibration and displacement of the bar during the polishing process are effectively reduced. The V-shaped guide groove structure can accurately guide the bar along the center line, avoiding deviation and improving polishing uniformity. The PLC controller dynamically adjusts the contact pressure between the pressure roller and the bar by receiving proximity switch signals, further maintaining the stability of the bar. At the same time, the polishing flap wheel and the polishing support wheel are driven by the same motor and rotate synchronously through a synchronous belt, forming a stable polishing environment, so that the bar is polished uniformly, ultimately improving polishing accuracy, surface finish and consistency. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of an automatic limiting device for polishing medical titanium and titanium alloy rods.
[0016] Among them, 1. Titanium alloy bar; 2. Guide groove; 3. Proximity switch; 4. PLC controller; 5. Pressure roller; 6. Support frame; 7. Polishing flap wheel; 8. Polishing support wheel; Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.
[0018] See Figure 1 As shown, an automatic limiting device for polishing medical titanium and titanium alloy rods is characterized by comprising a first vibration damping component, a polishing component, and a second vibration damping component sequentially arranged on a mounting base along the polishing process of the titanium and titanium alloy rods. A wire feeding component is also provided at the end of the first vibration damping component away from the polishing component, and a wire take-up component is provided at the end of the second vibration damping component away from the polishing component.
[0019] The titanium alloy rod is smoothly fed into the first vibration damping component via the feeding assembly. This component initially stabilizes the rod, preventing significant vibration and displacement during the polishing process. After polishing, the rod is further stabilized by the second vibration damping component to reduce vibration amplitude and ensure polishing accuracy. The take-up assembly then smoothly retracts the polished titanium alloy rod, avoiding surface scratches.
[0020] The first vibration damping component and the second vibration damping component have the same structure, both including a support frame 6. The support frame 6 is fixedly installed on the mounting base. A guide groove 2 is provided inside the support frame 6. One end of an electric telescopic rod is provided at the top of the support frame 6, and a pressure roller 5 is provided at the other end of the electric telescopic rod. A proximity switch 3 is provided on the side of the support frame 6.
[0021] When the titanium alloy rod is located in the guide groove 2, the proximity switch 3 senses its position, thereby adjusting the pressure of the pressure roller 5 through the electric telescopic rod, ensuring that the titanium alloy rod remains stable during the polishing process and improving the polishing effect.
[0022] Optionally, it also includes a PLC controller 4, which is connected to the proximity switch 3 of the first vibration damping component and the second vibration damping component and the electric telescopic rod via signal lines. The PLC controller 4 is used to receive signals from the proximity switch 3, control the extension and retraction of the electric telescopic rod, and adjust the contact pressure between the pressure roller 5 and the titanium alloy rod 1.
[0023] In this embodiment, the PLC controller 4 monitors the polishing process of the titanium alloy rod in real time according to the preset program, and dynamically adjusts the pressure of the pressure roller 5 to ensure uniform polishing and improve surface finish.
[0024] During the process of adjusting the contact pressure between the pressure roller 5 and the titanium alloy rod, the proximity switch 3 first senses the position distance of the titanium alloy rod, and then transmits the collected data to the PLC controller 4. The PLC controller 4 calculates the optimal pressure value according to the preset algorithm, and precisely adjusts the pressure roller 5 through the electric telescopic rod to ensure that the titanium alloy rod is always in a relatively ideal state during the polishing process, thereby further optimizing the polishing effect.
[0025] Simultaneously, through this method, the PLC controller 4 achieves coordinated and independent control of the first and second vibration damping components, avoiding vibration problems caused by the reduction in the diameter of the titanium alloy rod after polishing. This effectively reduces minor vibrations during the polishing process, ensures the flatness of the titanium alloy rod surface, and improves the overall polishing quality.
[0026] Optionally, the guide groove 2 has a V-shaped structure. The V-shaped structure can better guide the titanium alloy rod, prevent it from deviating during the polishing process, ensure that the rod always runs along the center line, further improve the polishing uniformity and surface finish, and ultimately achieve a high-precision polishing effect.
[0027] Optionally, the polishing assembly includes a polishing flap wheel 7 and a polishing support wheel 8, which are located on opposite sides of the titanium alloy rod 1 and mounted on the mounting base.
[0028] The polishing flap wheel 7 and the polishing support wheel 8 are connected by a synchronous belt and driven by the same motor.
[0029] In this embodiment, after the motor is started, the polishing flap wheel 7 and the polishing support wheel 8 rotate synchronously under the synchronous drive, forming a stable polishing environment, ensuring that the titanium alloy rod 1 is polished evenly, and further improving the polishing accuracy.
[0030] In practical applications, the wire feeding assembly smoothly and evenly feeds the titanium alloy rod into the guide groove 2 inside the first vibration damping assembly. At the same time, the proximity switches 3 inside the first and second vibration damping assemblies monitor the position of the rod in real time, and the pressure roller 5 is precisely adjusted by the PLC controller 4 to ensure that the rod remains stable during the polishing process, reduce vibration, thereby improving the polishing efficiency of the polishing flap wheel 7 and the polishing support wheel 8, further optimizing the polishing effect, and ensuring that the surface finish of the titanium alloy rod meets the expected standard.
[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.
Claims
1. An automatic limiting device for polishing medical titanium and titanium alloy rods, characterized in that, This includes sequentially installing a first vibration damping component, a polishing component, and a second vibration damping component on the mounting base along the polishing process of titanium and titanium alloy rods. The first vibration damping component and the second vibration damping component have the same structure, both including a support frame (6). The support frame (6) is fixedly installed on the mounting base. A guide groove (2) is provided inside the support frame (6). One end of an electric telescopic rod is provided at the top of the support frame (6), and a pressure roller (5) is provided at the other end of the electric telescopic rod. A proximity switch (3) is provided on the side of the support frame (6).
2. The automatic limiting device for polishing medical titanium and titanium alloy rods according to claim 1, characterized in that: It also includes a PLC controller (4), which is connected to the proximity switch (3) of the first vibration damping component and the second vibration damping component and the electric telescopic rod via a signal line. The PLC controller (4) is used to receive the signal of the proximity switch (3), control the extension and retraction of the electric telescopic rod, and adjust the contact pressure between the pressure roller (5) and the titanium alloy rod (1).
3. The automatic limiting device for polishing medical titanium and titanium alloy rods according to claim 2, characterized in that: The guide groove (2) has a V-shaped structure.
4. The automatic limiting device for polishing medical titanium and titanium alloy rods according to any one of claims 1-3, characterized in that: The polishing assembly includes a polishing flap wheel (7) and a polishing support wheel (8). The polishing flap wheel (7) and the polishing support wheel (8) are located on both sides of the titanium alloy rod (1) and are mounted on the mounting base.
5. The automatic limiting device for polishing medical titanium and titanium alloy rods according to claim 4, characterized in that: The polishing flap wheel (7) and the polishing support wheel (8) are connected by a synchronous belt and driven by the same motor.
6. The automatic limiting device for polishing medical titanium and titanium alloy rods according to claim 1, characterized in that: A wire feeding component is provided at the end of the first vibration damping component that is away from the polishing component, and a wire take-up component is provided at the end of the second vibration damping component that is away from the polishing component.