Titanium tube inner wall polishing treatment equipment

Abstract

The utility model discloses a kind of titanium pipe inner wall polishing treatment equipment, belong to titanium pipe processing technical field.It include box, and box bottom is equipped with polishing assembly and titanium pipe fixed component;Polishing assembly includes mounting shaft, and mounting shaft outer wall is annular and is equally spaced with sand strip, two connecting rods are oppositely arranged between each sand strip inner side and mounting shaft outer wall, mounting shaft outer wall is sleeved with fixed ring and moving ring, oppositely arranged two connecting rod ends are respectively rotatably connected with fixed ring and moving ring, two connecting rods are rotatably connected with sand strip;Moving ring is slidably engaged with mounting shaft, and moving ring outer side one end is rotatably connected with adjusting cylinder.The utility model rotates adjusting cylinder in polishing assembly, and the distance of sand strip and mounting shaft is changed by the change of connecting rod inclination angle, and the polishing demand of different inner diameter titanium pipe can be adapted.Titanium pipe fixed component is flexibly adjusted by realizing the spacing of clamping block, and the fixation of different outer diameter titanium pipe is adapted, and equipment is not needed to be separately configured for different size titanium pipe, and use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of titanium tube processing technology, and more specifically, to a titanium tube inner wall polishing equipment. Background Technology

[0002] Titanium and titanium alloys are widely used in high-end fields such as aerospace (e.g., engine cooling pipes), medical devices (e.g., artificial joint catheters), and chemical pipelines (e.g., corrosion-resistant delivery pipes) due to their excellent properties such as high strength, corrosion resistance, and biocompatibility. In these applications, the smoothness and flatness of the inner wall of titanium tubes directly affect fluid transport efficiency (e.g., reducing media resistance), corrosion resistance (avoiding localized corrosion caused by scratches on the inner wall), and biosafety (e.g., preventing bacterial adhesion in medical devices). Typically, the inner wall surface roughness Ra ≤ 0.4 μm is required, and in some precision applications, Ra ≤ 0.1 μm is even necessary. Therefore, inner wall polishing is one of the core processes in titanium tube processing. Titanium tube processing is characterized by "multiple specifications and variable inner diameters": medical micro-titanium tubes have an inner diameter of 2-5 mm, while chemical tubes reach 50-200 mm. Furthermore, there is an inner diameter tolerance of ±0.1-0.5 mm within the same batch, requiring polishing components adapted to different inner diameters while ensuring uniform pressure and complete trajectory.

[0003] Currently, most titanium tube inner wall polishing equipment uses fixed-size polishing heads, requiring the replacement of different models of polishing heads depending on the inner diameter of the titanium tube. This head replacement is time-consuming and easily leads to coaxiality deviation, making it impossible to compensate for tolerances (small inner diameters are easily scratched, while large inner diameters result in incomplete polishing). In view of this, we propose a titanium tube inner wall polishing equipment. Utility Model Content

[0004] The purpose of this invention is to provide a polishing device for the inner wall of titanium tubes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A titanium tube inner wall polishing equipment includes a housing, and a polishing assembly and a titanium tube fixing assembly are installed at the bottom of the housing; The polishing assembly includes a mounting shaft with abrasive strips arranged in a ring at equal intervals on the outer wall of the mounting shaft. Two connecting rods are arranged opposite each abrasive strip to the outer wall of the mounting shaft. A fixed ring and a movable ring are fitted on the outer wall of the mounting shaft. The ends of the two oppositely arranged connecting rods are rotatably connected to the fixed ring and the movable ring, respectively. The other ends of the two connecting rods are rotatably connected to the abrasive strips. The movable ring slides with the mounting shaft, and an adjusting cylinder is rotatably connected to one end of the outer side of the movable ring. The adjusting cylinder is threaded with the mounting shaft.

[0006] Preferably, a movable shaft is rotatably connected to one end of the mounting shaft, and a motor is installed inside the movable shaft. The output shaft of the motor is connected to the mounting shaft.

[0007] Preferably, a limiting tube is sleeved on the outside of the moving shaft, and a sliding groove is opened on the limiting tube. A slider is slidably arranged in the sliding groove and connected to the moving shaft. A mounting bracket is provided near both ends of the limiting tube, and a lead screw is provided between the two mounting brackets. The lead screw is slidably engaged with the slider. A second motor is provided in one of the mounting brackets and connected to one end of the lead screw.

[0008] Preferably, the titanium tube fixing assembly includes a fixing plate, a clamping rod is provided on the fixing plate, and a clamping block is rotatably connected to the end of the clamping rod. The clamping block has a V-shaped structure.

[0009] Preferably, a rotating ring is rotatably connected to the fixed disk, a sliding sleeve is fitted on the clamping rod, the sliding sleeve is rotatably connected to the rotating ring, and the outer end of the clamping rod is rotatably connected to the fixed disk.

[0010] Preferably, a protrusion is provided on one side of the rotating ring, and a mounting block one is rotatably connected to the protrusion. A mounting block two is rotatably connected to the fixed plate. An adjusting screw is provided through the mounting block two, and one end of the adjusting screw extends into the mounting block one and rotatably engages with the mounting block one.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) This utility model achieves adaptation to titanium tubes of different specifications through a bidirectional adjustment structure: On the one hand, the rotatable adjustment cylinder in the polishing assembly drives the moving ring to move by threading with the mounting shaft, and changes the distance between the sanding strip and the mounting shaft by changing the tilt angle of the connecting rod, which can adapt to the polishing needs of titanium tubes with different inner diameters; on the other hand, the rotatable adjustment screw in the titanium tube fixing assembly pushes the rotating ring to rotate and drives the sliding sleeve to move, adjusts the tilt angle of the clamping rod, and realizes flexible adjustment of the clamping block spacing, adapting to the fixing of titanium tubes with different outer diameters, without the need to configure separate equipment for titanium tubes of different sizes, thus reducing the cost of use.

[0012] (2) The polishing assembly of this utility model adopts a composite motion mode of rotation and linear movement: Motor 1 drives the mounting shaft to rotate the abrasive strip at high speed to achieve grinding and polishing of the inner wall of the titanium tube; at the same time, Motor 2 drives the lead screw to rotate, which drives the moving shaft and the mounting shaft to move linearly along the limiting tube through the slider, so that the abrasive strip moves along the axial direction of the titanium tube while rotating and grinding. This mode avoids the problem of local omissions in single rotation polishing, can fully cover the inner wall of the titanium tube, improve the polishing uniformity, and the composite motion can shorten the polishing time and improve the processing efficiency compared with single motion. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the polishing component of this utility model; Figure 3 This is a schematic diagram of the titanium tube fixing assembly of this utility model.

[0014] The following are the labels in the diagram: 1. Housing; 2. Polishing assembly; 201. Mounting shaft; 202. Abrasive strip; 203. Connecting rod; 204. Fixing ring; 205. Moving ring; 206. Adjusting cylinder; 207. Moving shaft; 3. Titanium tube fixing assembly; 301. Fixing plate; 302. Clamping rod; 303. Clamping block; 304. Rotary ring; 305. Sliding sleeve; 306. Mounting block one; 307. Mounting block two; 308. Adjusting screw; 4. Limiting tube; 5. Sliding block; 6. Mounting bracket; 7. Lead screw; 8. Titanium tube. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Example: Please see Figure 1-3 A titanium tube inner wall polishing device includes a housing 1, with a polishing component 2 and a titanium tube fixing component 3 installed at the bottom of the housing 1; the titanium tube fixing component 3 is used to fix the titanium tube to be polished, and the polishing component 2 is used to polish the inner wall of the titanium tube.

[0017] The polishing assembly 2 includes a mounting shaft 201. Abrasive strips 202 are arranged in an annular pattern at equal intervals on the outer wall of the mounting shaft 201. Two connecting rods 203 are arranged opposite each other between the inner side of each abrasive strip 202 and the outer wall of the mounting shaft 201. A fixed ring 204 and a movable ring 205 are fitted onto the outer wall of the mounting shaft 201. The fixed ring 204 is fixedly connected to the mounting shaft 201. The ends of the two oppositely arranged connecting rods 203 are rotatably connected to the fixed ring 204 and the movable ring 205, respectively. The other ends of the two connecting rods 203 are rotatably connected to the abrasive strips 202. The movable ring 205 is slidably engaged with the mounting shaft 201 and can move along the extension direction of the mounting shaft 201. An adjusting cylinder 206 is rotatably connected to one outer end of the movable ring 205, and the adjusting cylinder 206 is threadedly engaged with the mounting shaft 201.

[0018] In use, by rotating the adjusting cylinder 206, the adjusting cylinder 206 is threadedly engaged with the mounting shaft 201, thereby causing the adjusting cylinder 206 to move along the mounting shaft 201. When the adjusting cylinder 206 moves, it drives the moving ring 205 to move, adjusting the distance between the moving ring 205 and the fixed ring 204. At this time, the two connecting rods 203 set opposite to each other will rotate relative to each other, thereby adjusting the distance between the sanding strip 202 and the mounting shaft 201 to adapt to the polishing of titanium tubes with different inner diameters.

[0019] In this application, a movable shaft 207 is rotatably connected to one end of the outer side of the mounting shaft 201. A motor is installed inside the movable shaft 207, and the output shaft of the motor is connected to the mounting shaft 201. The motor drives the mounting shaft 201 to rotate, and when the mounting shaft 201 rotates, it drives multiple abrasive strips 202 to rotate, thereby achieving polishing of the inner wall of the titanium tube.

[0020] In this application, a limiting tube 4 is sleeved on the outer side of the moving shaft 207. A sliding groove is formed on the limiting tube 4, which is arranged along the axial direction of the limiting tube 4. A slider 5 is slidably arranged in the sliding groove and is connected to the moving shaft 207. Mounting brackets 6 are provided near both ends of the limiting tube 4, and a lead screw 7 is provided between the two mounting brackets 6. The lead screw 7 is slidably engaged with the slider 5. A second motor is provided in one of the mounting brackets 6 and is connected to one end of the lead screw 7. The second motor drives the lead screw 7 to rotate, thereby causing the slider 5, which is threaded to the lead screw 7, to move linearly along the sliding groove, thereby driving the moving shaft 207 to move linearly. When the moving shaft 207 moves, it will drive the mounting shaft 201 to move linearly, causing the abrasive strip 202 to rotate and move while polishing the inner wall of the titanium tube. The slider 5 slides along the groove of the limiting tube 4, which can limit the movement trajectory of the moving shaft 207 and prevent it from shaking or deviating during linear movement. At the same time, the cooperation between the lead screw 7 and the slider 5 is smooth, which can ensure that the moving shaft moves at a uniform speed. This ensures that the polishing force and moving speed of the abrasive strip 202 on the inner wall of the titanium tube are consistent, reducing the fluctuation of polishing quality caused by unstable equipment operation and improving the finished product qualification rate.

[0021] In this application, the titanium tube fixing assembly 3 includes a fixing plate 301, on which a clamping rod 302 is provided. A clamping block 303 is rotatably connected to the end of the clamping rod 302. The clamping block 303 has a V-shaped structure, which facilitates the fixing of titanium tubes of different diameters. A rubber pad can be adhered to the inner wall of the clamping block 303. The V-shaped clamping block has an opening design that can fit against the outer wall of titanium tubes of different diameters, increasing the contact area, improving clamping stability, and preventing the titanium tube from shifting during polishing. At the same time, the rubber pad that can be adhered to the inner wall of the clamping block, with its elasticity, can further increase friction and strengthen the fixing effect, while also preventing the clamping block from directly contacting the metal surface of the titanium tube, preventing scratches and damage to the surface of the titanium tube during clamping, and protecting the appearance and performance of the workpiece.

[0022] Specifically, a rotating ring 304 is rotatably connected to the fixed disk 301, and a sliding sleeve 305 is fitted onto the clamping rod 302. The clamping rod 302 and the sliding sleeve 305 are slidably engaged, and the sliding sleeve 305 is rotatably connected to the rotating ring 304. The outer end of the clamping rod 302 is rotatably connected to the fixed disk 301. A protrusion is provided on one side of the rotating ring 304, and a mounting block 306 is rotatably connected to the protrusion. A mounting block 307 is rotatably connected to the fixed disk 301. An adjusting screw 308 is threaded through the mounting block 307, and one end of the adjusting screw 308 extends into the mounting block 306 and rotatably engages with it.

[0023] In use, by rotating the adjusting screw 308, the adjusting screw 308 moves relative to the second mounting block 307, pushing the first mounting block 306 to move, adjusting the distance between the second mounting block 307 and the first mounting block 306, causing the rotating ring 304 to rotate relative to the fixed plate 301, driving the sliding sleeve 305 to move, adjusting the tilt angle of the clamping rod 302, thereby realizing the adjustment of the distance between multiple clamping blocks 303 to accommodate the fixing of titanium tubes of different sizes.

[0024] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A titanium tube inner wall polishing device, comprising a housing (1), characterized in that: The bottom of the housing (1) is equipped with a polishing assembly (2) and a titanium tube fixing assembly (3); The polishing assembly (2) includes a mounting shaft (201). The outer wall of the mounting shaft (201) is provided with abrasive strips (202) at equal intervals in a ring. Two connecting rods (203) are arranged opposite to each abrasive strip (202) between the inner side of the abrasive strip (202) and the outer wall of the mounting shaft (201). A fixed ring (204) and a movable ring (205) are sleeved on the outer wall of the mounting shaft (201). The ends of the two connecting rods (203) are rotatably connected to the fixed ring (204) and the movable ring (205) respectively. The other ends of the two connecting rods (203) are rotatably connected to the abrasive strips (202). The movable ring (205) is slidably engaged with the mounting shaft (201), and an adjusting cylinder (206) is rotatably connected to one end of the outer side of the movable ring (205). The adjusting cylinder (206) is threadedly engaged with the mounting shaft (201).

2. The titanium tube inner wall polishing equipment according to claim 1, characterized in that: One end of the mounting shaft (201) is rotatably connected to the movable shaft (207), and a motor is installed inside the movable shaft (207). The output shaft of the motor is connected to the mounting shaft (201).

3. The titanium tube inner wall polishing equipment according to claim 2, characterized in that: A limiting tube (4) is sleeved on the outside of the moving shaft (207). A sliding groove is provided on the limiting tube (4). A slider (5) is slidably arranged in the sliding groove. The slider (5) is connected to the moving shaft (207). A mounting bracket (6) is provided near both ends of the limiting tube (4). A lead screw (7) is provided between the two mounting brackets (6). The lead screw (7) is slidably engaged with the slider (5). A second motor is provided in one of the mounting brackets (6). The second motor is connected to one end of the lead screw (7).

4. The titanium tube inner wall polishing equipment according to claim 1, characterized in that: The titanium tube fixing assembly (3) includes a fixing plate (301), on which a clamping rod (302) is provided, and a clamping block (303) is rotatably connected to the end of the clamping rod (302), and the clamping block (303) has a V-shaped structure.

5. The titanium tube inner wall polishing equipment according to claim 4, characterized in that: A rotating ring (304) is rotatably connected to the fixed disk (301), and a sliding sleeve (305) is sleeved on the clamping rod (302). The sliding sleeve (305) is rotatably connected to the rotating ring (304), and the outer end of the clamping rod (302) is rotatably connected to the fixed disk (301).

6. The titanium tube inner wall polishing equipment according to claim 5, characterized in that: A protrusion is provided on one side of the rotating ring (304), and a mounting block one (306) is rotatably connected to the protrusion. A mounting block two (307) is rotatably connected to the fixed plate (301). An adjusting screw (308) is provided through the mounting block two (307), and one end of the adjusting screw (308) extends into the mounting block one (306) and rotates in cooperation with the mounting block one (306).

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