Pipe inner surface polishing equipment

Abstract

The utility model discloses pipe inner surface polishing equipment and relates to the technical field of pipe treatment. The problems that an existing pipe is fixed through a hydraulic cylinder, deformation is prone to occurring, and the product quality is low are solved. The pipe polishing machine comprises a rack, a fixing mechanism and a polishing mechanism, the rack is provided with a supporting structure, a pipe is suitable for being placed on the supporting structure, the polishing mechanism comprises a driving motor, a transmission shaft and a polishing wheel, the driving motor is installed on the rack in a sliding mode and slides in the axial direction of the pipe, and the transmission shaft is connected with the driving end of the driving motor. During polishing, a pipe is placed on the supporting structure, the air cylinder is started to drive the pressing plate to extrude the upper portion of the pipe, then the driving motor is started, the driving motor drives the polishing wheel to polish the pipe through the transmission shaft, the air cylinder serves as a fixing source, and the pressure of the air cylinder is smaller than that of a hydraulic cylinder. The extrusion force is more convenient to control, so that deformation of the pipe is avoided, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to a pipe inner surface polishing device. Background Technology

[0002] Aluminum alloy tubing is widely used in liquid transportation in aviation and aerospace. During the tubing extrusion process, due to the influence of various factors such as billet, mold, and extrusion process, extrusion marks or oxide scale will inevitably appear on the inner surface of the tubing, which seriously affects the product quality, yield, and economic benefits of the tubing products. Therefore, the inner surface of the tubing must be polished.

[0003] Currently, internal boring machines are generally used to polish pipes. However, the pipes need to be fixed before polishing, and the fixing source is mostly a hydraulic cylinder. The pressure of the hydraulic cylinder is relatively large, and it is not easy to control the fixing force of the pipe. Excessive squeezing force will cause the pipe to deform, thereby reducing product quality.

[0004] In summary, existing methods of fixing pipes using hydraulic cylinders suffer from problems such as easy deformation and low product quality. Utility Model Content

[0005] The purpose of this invention is to solve the problems of easy deformation and low product quality when fixing pipes with hydraulic cylinders. Therefore, it provides a pipe inner surface polishing device.

[0006] The technical solution of this utility model is: a pipe inner surface polishing device, comprising: a frame, a fixing mechanism and a polishing mechanism, wherein the frame has a supporting structure, the pipe is suitable for being placed on the supporting structure, the polishing mechanism includes a drive motor, a transmission shaft and a polishing wheel, the drive motor is slidably mounted on the frame, the drive motor slides along the axial direction of the pipe, the transmission shaft is connected to the drive end of the drive motor, and the polishing wheel is mounted on the end of the transmission shaft;

[0007] The fixing mechanism includes a cylinder and a pressure plate. The cylinder is mounted on the frame, and the pressure plate is mounted on the telescopic rod of the cylinder. The pressure plate is pressed against the top of the pipe under the drive of the cylinder.

[0008] Furthermore, the pressure plate is detachably connected to the telescopic rod of the air cylinder.

[0009] Furthermore, the telescopic rod has through slots on both sides, and the pressure plate is connected to a snap-fit ​​component for engaging with the slots. The snap-fit ​​component is fixed to the telescopic rod by bolts.

[0010] Furthermore, the slot is an inverted T-shaped slot with the opening facing upwards, the snap-fit ​​component includes a snap plate, a connecting rod and a support plate, the pressure plate is mounted on the support plate, the snap plate is inserted into the slot, and the connecting rod connects the snap plate and the support plate.

[0011] Furthermore, the pressure plate has a semi-circular groove for embedding the tube, and the tube is squeezed through the inner wall of the semi-circular groove.

[0012] Furthermore, the frame has a track extending axially, on which a moving vehicle is slidably mounted, and the drive motor is fixed to the moving vehicle.

[0013] Furthermore, it also includes: two reinforcing wheels, which are arranged parallel to each other along the height, the two reinforcing wheels are rotatably mounted on the frame, and the drive shaft passes through the two reinforcing wheels.

[0014] Furthermore, the support structure is a support wheel rotatably mounted on the frame, and the support wheel has multiple wheels spaced apart, with the axis of the multiple support wheels perpendicular to the axis of the pipe.

[0015] Furthermore, it also includes: a dust collection cloth, which is fitted onto the end of the tube away from the polishing wheel.

[0016] Furthermore, a lifting and movable clamping block is connected to the frame, and the clamping block presses against the dust collecting cloth to fix it in place.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The pipe inner surface polishing equipment provided by this utility model first places the pipe on the support structure during polishing. Then, the air cylinder is started to drive the pressure plate to squeeze the pipe. Then, the drive motor is started and drives the polishing wheel to polish the pipe through the transmission shaft. The fixed source is the air cylinder. The pressure of the air cylinder is smaller than that of the hydraulic cylinder, and the squeezing force is easier to control, thereby avoiding pipe deformation and ensuring product quality.

[0019] 2. The pipe inner surface polishing equipment provided by this utility model has a detachable connection between the pressure plate and the telescopic rod of the air cylinder. When the pressure plate is damaged, it can be quickly replaced, making subsequent maintenance more convenient.

[0020] 3. The pipe inner surface polishing equipment provided by this utility model has a dust collection cloth that can collect the dust generated during the polishing process, making the working environment more holistic and beneficial to the health of the workers. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the overall structure of the pipe inner surface polishing equipment of this utility model;

[0022] Figure 2 yes Figure 1 Top view;

[0023] Figure 3 yes Figure 1 Sectional view at point AA;

[0024] Figure 4 yes Figure 1 Sectional view at point BB;

[0025] Figure 5 yes Figure 1 Sectional view at CC;

[0026] Figure 6 yes Figure 1 Sectional view at point DD;

[0027] Figure 7 yes Figure 1 Enlarged view of point E in the middle.

[0028] In the diagram: 1. Frame; 2. Fixing mechanism; 3. Polishing mechanism; 4. Support structure; 5. Pipe; 6. Drive motor; 7. Transmission shaft; 8. Polishing wheel; 9. Air cylinder; 10. Pressure plate; 11. Telescopic rod; 12. Slot; 13. Connecting piece; 14. Plate; 15. Connecting rod; 16. Support plate; 17. Semi-circular groove; 18. Track; 19. Moving vehicle; 20. Reinforcing wheel; 21. Dust collection cloth; 22. Pressing block. Detailed Implementation

[0029] Specific implementation method 1: Combination Figure 1 , Figure 2 , Figure 7 This embodiment describes a machine frame, a fixing mechanism, and a polishing mechanism. The fixing mechanism is used to fix the pipe, and the polishing mechanism is used to polish the pipe. The machine frame has a support structure, and the pipe is suitable for being placed on the support structure. The polishing mechanism includes a drive motor, a transmission shaft, and a polishing wheel. The drive motor is slidably mounted on the machine frame and slides along the axial direction of the pipe. The transmission shaft is connected to the drive end of the drive motor, and the polishing wheel is mounted on the end of the transmission shaft. The fixing mechanism includes a cylinder and a pressure plate. The cylinder is mounted on the machine frame, and the pressure plate is mounted on the telescopic rod of the cylinder. The pressure plate is pressed against the top of the pipe by the cylinder to fix the pipe.

[0030] In this embodiment of the pipe inner surface polishing equipment, the pipe is first placed on the support structure, the air cylinder is started to drive the pressure plate to squeeze the pipe, and then the drive motor is started. The drive motor drives the polishing wheel to polish the pipe through the transmission shaft. The fixed source is the air cylinder. The pressure of the air cylinder is smaller than that of the hydraulic cylinder, and the squeezing force is easier to control, thereby avoiding pipe deformation and ensuring product quality.

[0031] Specific Implementation Method Two: Combining Figure 1 , Figure 7 This embodiment differs from Specific Embodiment 1 in that the pressure plate and the telescopic rod of the air cylinder are detachably connected. This allows for quick replacement of the pressure plate if it is damaged, making subsequent maintenance more convenient. Of course, the above description is not limiting. As an alternative embodiment, the pressure plate can also be fixedly connected to the telescopic rod of the air cylinder, for example, by welding. Other components and connections are the same as in Specific Embodiment 1.

[0032] Specific implementation method three: Combining Figure 1 , Figure 7 This embodiment differs from Embodiment 2 in that the telescopic rod has through-hole slots on both sides. A snap-fit ​​component is connected to the pressure plate to mate with the slots. The snap-fit ​​component is fixed to the telescopic rod by bolts. The slots serve a positioning function, and the bolts tighten the two together. The slots primarily provide a fixing effect, while the bolts act as an auxiliary component to prevent the snap-fit ​​component from separating from the slots. Of course, the above description is not limiting. As an alternative embodiment, the snap-fit ​​component can be omitted, and threaded holes can be directly made on both the telescopic rod and the pressure plate, through which bolts are passed for connection. Other components and connections are the same as in Embodiment 2.

[0033] Specific implementation method four: Combination Figure 1 , Figure 7 This embodiment differs from specific embodiment three in that the slot is an inverted T-shaped slot with the opening facing upwards. The locking component includes a locking plate, a connecting rod, and a support plate. Two pressure plates are mounted on the support plate, spaced apart. The locking plate is inserted into the slot, and the connecting rod connects the locking plate and the support plate. The connecting rod can pass through the top of the slot, thereby reducing its length and improving its stability, thus enhancing the fixing effect of the pressure plate on the pipe. Of course, the above description is not limiting. As an alternative embodiment, the slot can also be a rectangular slot extending through both sides, and the connecting rod can be replaced with an L-shaped rod connecting the support plate and the locking plate. Other components and connections are the same as in specific embodiment three.

[0034] Specific Implementation Method Five: Combining Figure 1 , Figure 4This embodiment differs from specific embodiment one in that the pressure plate has a semi-circular groove for embedding the pipe. The pipe is pressed and fixed by the inner wall of the semi-circular groove. The contact area between the semi-circular groove and the pipe is larger, resulting in better pipe fixing. Of course, the above description is not limiting. As an alternative embodiment, the pressure plate may also have a rectangular groove into which the pipe is embedded for fixing. Other components and connections are the same as in specific embodiment one.

[0035] Specific Implementation Method Six: Combination Figure 1 , Figure 2 , Figure 6 This embodiment differs from specific embodiment one in that the frame has an axially extending track, on which a moving trolley is slidably mounted. The drive motor is fixed on the moving trolley, making the trolley more flexible and its movement accuracy lower than that of the drive motor moving along the guide rail, thus facilitating control. The above description is not limiting. As an alternative embodiment, the drive motor can be placed on an electromagnetic guide rail, and the slider of the electromagnetic guide rail can drive the drive motor to move. Other components and connections are the same as in specific embodiment one.

[0036] Specific implementation method seven: Combination Figure 1 , Figure 5 This embodiment differs from Specific Embodiment Six in that it further includes: two reinforcing wheels, arranged parallel to each other along the height direction. These two reinforcing wheels are rotatably mounted on the frame. A drive shaft passes between the two reinforcing wheels, with the axes of the two reinforcing wheels perpendicular to the axis of the drive shaft. When the drive motor moves the drive shaft, the reinforcing wheels support the drive shaft, making its rotation more stable and preventing wobbling, thus ensuring a good polishing effect on the inner surface of the pipe. Other components and connections are the same as in Specific Embodiment Six.

[0037] Specific implementation method eight: Combination Figure 1 This embodiment differs from specific embodiment one in that the support structure is a support wheel rotatably mounted on the frame. Multiple support wheels are spaced apart, and their axes are perpendicular to the axis of the pipe. When the pipe is placed on the support wheels, there is rolling contact between the pipe and the support wheels, resulting in less friction and reducing the likelihood of friction with the outer surface of the pipe. This ensures that the outer surface of the pipe is not scratched, leading to better product quality. Of course, the above description is not limiting. As an alternative embodiment, the support structure can also be an arc-shaped block fixedly mounted on the frame, with the pipe embedded inside the arc-shaped block. Other components and connections are the same as in any of specific embodiments one through seven.

[0038] Specific Implementation Method Nine: Combining Figure 1This embodiment differs from specific embodiment one in that it further includes a dust collection cloth, which is fitted onto the end of the pipe furthest from the polishing wheel. The dust collection cloth can be connected to a fan, which provides power to collect the dust generated during polishing inside the pipe, making the working environment more hygienic and beneficial to the health of the workers. Other components and connections are the same as in any one of specific embodiments one through seven.

[0039] Specific Implementation Method Ten: Combining Figure 2 , Figure 3 This embodiment differs from specific embodiment nine in that it has a movable, height-adjustable clamping block connected to the frame. The clamping block presses against the dust collection cloth to secure it. Specifically, a threaded rod is connected to the clamping block, threaded to the frame. Rotating the threaded rod allows the clamping block to rise and fall, thus securing the dust collection cloth firmly to the pipe. Of course, the above description is not limiting. As an alternative embodiment, a ring composed of two detachably connected semi-rings can be fitted over the outside of the dust collection cloth to secure it. Other components and connections are the same as in specific embodiment nine.

[0040] The working principle of this implementation method is as follows:

[0041] First, place the pipe to be polished on multiple support wheels. Then, start the air cylinder, which moves the pressure plate downward and presses it against the top of the pipe to fix it in place. Start the drive motor, which drives the transmission shaft to rotate. The transmission shaft drives the polishing wheel to rotate and, driven by the moving carriage, extends into the pipe for polishing.

[0042] The content of this utility model is not limited to the above-described embodiments; a combination of one or more specific embodiments can also achieve the purpose of the utility model.

Claims

1. A pipe inner surface polishing device, comprising: The frame (1), fixing mechanism (2), and polishing mechanism (3) are provided. The frame (1) has a support structure (4), and the tube (5) is adapted to be placed on the support structure (4). The polishing mechanism (3) includes a drive motor (6), a transmission shaft (7), and a polishing wheel (8). The drive motor (6) is slidably mounted on the frame (1) and slides along the axial direction of the tube (5). The transmission shaft (7) is connected to the drive end of the drive motor (6), and the polishing wheel (8) is mounted on the end of the transmission shaft (7). The fixing mechanism (2) is characterized in that it includes a cylinder (9) and a pressure plate (10), the cylinder (9) is mounted on the frame (1), the pressure plate (10) is mounted on the telescopic rod (11) of the cylinder (9), and the pressure plate (10) is pressed against the top of the pipe (5) under the drive of the cylinder (9).

2. The pipe inner surface polishing equipment according to claim 1, characterized in that, The pressure plate (10) is detachably connected to the telescopic rod (11) of the air cylinder (9).

3. The pipe inner surface polishing equipment according to claim 2, characterized in that, The telescopic rod (11) has a through slot (12) on both sides, and a snap-fit ​​part (13) for cooperating with the slot (12) is connected to the pressure plate (10). The snap-fit ​​part (13) is fixed to the telescopic rod (11) by bolts.

4. The pipe inner surface polishing equipment according to claim 3, characterized in that, The slot (12) is an inverted T-shaped slot with the opening facing upwards. The snap-fit ​​component (13) includes a snap plate (14), a connecting rod (15), and a support plate (16). The pressure plate (10) is installed on the support plate (16). The snap plate (14) is inserted into the slot (12). The connecting rod (15) connects the snap plate (14) and the support plate (16).

5. The pipe inner surface polishing equipment according to claim 1, characterized in that, The pressure plate (10) has a semi-circular groove (17) for embedding the tube (5), and the tube (5) is squeezed through the inner wall of the semi-circular groove (17).

6. The pipe inner surface polishing equipment according to claim 1, characterized in that, The frame (1) has a track (18) extending along the axial direction, and a moving vehicle (19) is slidably mounted on the track (18), and the drive motor (6) is fixed on the moving vehicle (19).

7. The pipe inner surface polishing equipment according to claim 6, characterized in that, Also includes: The reinforcing wheel (20) has two that are arranged parallel to each other along the height. The two reinforcing wheels (20) are rotatably mounted on the frame (1), and the drive shaft (7) passes between the two reinforcing wheels (20).

8. A pipe inner surface polishing device according to any one of claims 1-7, characterized in that, The support structure (4) is a support wheel that is rotatably mounted on the frame (1). The support wheel has multiple wheels spaced apart, and the axis of the multiple support wheels is perpendicular to the axis of the pipe (5).

9. A pipe inner surface polishing device according to any one of claims 1-7, characterized in that, Also includes: A dust collection cloth (21) is fitted onto the end of the tube (5) away from the polishing wheel (8).

10. A pipe inner surface polishing device according to claim 9, characterized in that, A lifting and movable clamping block (22) is connected to the frame (1), and the clamping block (22) presses against the dust collection cloth (21) to fix it.

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