Pipe grinding device

Abstract

The present invention discloses a pipe grinding device, which belongs to the field of grinding technology. The grinding wheel is mounted on a slidably mounted support body, and the pipe is ground along the length direction on the support, which effectively avoids the high friction problem caused by traditional annular grinding marks. The device adopts a meshing mechanism between a track and a driving gear to achieve synchronous linkage between the movement of the support body and the rotation of the grinding wheel, which not only improves the grinding efficiency, but also simplifies the structure and reduces the manufacturing cost. At the same time, the design of the rotatable support column and the loading rack on the fixed part facilitates the automatic loading and rotation adjustment of the pipe.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, and in particular to a pipe grinding device. Background Art

[0002] In the field of pipe processing, fine grinding of the pipe surface is a crucial process link, which is directly related to the product's appearance and practical application efficiency. Traditionally, this type of grinding operation is highly dependent on manual handheld grinding wheel operation. This mode not only significantly increases the physical burden of workers, but also leads to uneven grinding quality due to inefficiency and human factors, which is specifically manifested in uneven grinding surface and large fluctuations in surface roughness. More importantly, the traditional circumferential grinding method, which relies on the rotating grinding wheel to contact the surface of the pipe and achieves comprehensive grinding through the rotation of the pipe itself, often leaves obvious annular grinding marks on the surface of the pipe. These marks will significantly increase the friction resistance in specific usage scenarios, such as axial sliding of the pipe, which may affect the overall performance and service life of the product. At the same time, conventional grinding devices generally need to be equipped with a variety of drive devices, including devices for driving the grinding wheel to move and devices for driving the grinding wheel to rotate, and the production cost is relatively high.

[0003] Therefore, the present invention provides a pipe grinding device that can solve the above problems. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a pipe grinding device capable of automatically performing axial grinding on pipes.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: The present invention provides a pipe grinding device, including a bracket, and also including:

[0006] A support body, the support body is slidably mounted on the bracket, and a grinding wheel capable of grinding the surface of the pipe fitting is rotatably mounted on the support body;

[0007] A fixing part, which is installed inside the bracket and is provided with a mounting position for supporting the pipe fitting, and the pipe fitting can rotate freely on the mounting position;

[0008] The moving path of the grinding wheel is along the length direction of the pipe fitting, and an arc-shaped groove adapted to the pipe fitting is provided on the outer annular surface of the grinding wheel.

[0009] Preferably, the bracket is provided with a plurality of tracks arranged along the length direction of the bracket, one of the tracks is provided with teeth, a driving gear is rotatably installed on the support body, the driving gear is meshed and connected with the teeth on the track, a gearbox is fixed on the support body, and the driving gear and the grinding wheel are connected to the gearbox through a first connecting shaft and a second connecting shaft respectively.

[0010] Preferably, the gearbox is internally rotatably installed with a first gear, a second gear, a third gear and a fourth gear, the first gear is connected to the driving gear through a first connecting shaft, the second gear is meshed with the first gear, the second gear is coaxially connected to the third gear, the third gear is meshed with the fourth gear, the fourth gear is connected to the grinding wheel through a second connecting shaft, the number of teeth on the first gear is greater than the number of teeth on the second gear, and the number of teeth on the third gear is greater than the number of teeth on the fourth gear.

[0011] Preferably, a screw rod is rotatably mounted on the bracket, a slider is fixed on the support body, and a through screw hole engaging with the screw rod is provided inside the slider.

[0012] Preferably, a rotatable support column is rotatably mounted on the fixing portion, and the number of the support columns is at least two.

[0013] Preferably, a loading rack is slidably mounted on the bracket, and an insert shaft for mounting pipe fittings is rotatably mounted on the loading rack.

[0014] Preferably, the bracket includes fixing plates fixed at both ends thereof, four tracks are connected between the two fixing plates, the four tracks are respectively arranged at four corners of the fixing plates, and slide plates corresponding to the tracks are arranged on the support body.

[0015] Preferably, a V-shaped protrusion is provided on the upper surface of the track, and a V-shaped sliding groove adapted to the V-shaped protrusion is provided on the slide plate.

[0016] Preferably, the insert shaft is provided with a plurality of protrusions.

[0017] Preferably, a motor for driving the insertion shaft to rotate is fixed on the loading rack, and a limiting groove is provided on the loading rack.

[0018] The beneficial effects of the present invention are:

[0019] This device is designed with a reciprocating motion mechanism of the support body on the bracket, which realizes efficient grinding of pipe fittings. This design guides the grinding layer pattern to be distributed along the length direction of the pipe fitting. Compared with the traditional annular layer pattern, this layout can significantly reduce the friction when the pipe fitting slides axially, and improve the smoothness and efficiency of the pipe fitting during use. In addition, the present invention also realizes the synchronous linkage between the rotation of the grinding wheel and the movement of the support body. Through this design, not only the overall structure is simplified, but also the number of required drive devices is reduced, thereby effectively reducing the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the tube body processing state of the present invention.

[0021] Figure 2It is a structural schematic diagram of the pipe fitting of the present invention in the installed state.

[0022] Figure 3 It is a top view of the present invention.

[0023] Figure 4 For the present invention Figure 3 Cross-sectional view along the AA direction.

[0024] Figure 5 This is an internal view of the support body of the present invention.

[0025] In the figure: 1, bracket, 2, support body, 3, fixing part, 4, grinding wheel, 5, track, 6, screw, 7, slider, 8, support column, 9, loading rack, 10, plug-in shaft, 11, driving gear, 12, first gear, 13, second gear, 14, third gear, 15, fourth gear, 16, first connecting shaft, 17, second connecting shaft. DETAILED DESCRIPTION

[0026] The present invention is described below with specific embodiments, but they are not intended to be limiting of the invention.

[0027] Embodiment 1

[0028] like Figure 1-Figure 3 As shown, in this embodiment, a pipe grinding device is provided, including a bracket 1, which is in the shape of a long strip and is a frame body for supporting a grinding component, and also includes a support body 2 and a fixing part 3.

[0029] The support body 2 is slidably mounted on the bracket 1, and the support body 2 can reciprocate on the bracket 1 along the length direction of the bracket 1. A grinding wheel 4 capable of grinding the surface of the pipe is rotatably mounted on the support body 2. During the movement of the grinding wheel 4 along the support body 2, its surface is kept in close contact with the surface of the pipe, and the grinding operation on the surface of the pipe is achieved through the rotation of the grinding wheel 4. The traces produced by this grinding process are linear, extending parallel to the direction of the axis of the pipe, which is in sharp contrast to the common annular grinding traces.

[0030] The fixing part 3 is installed inside the bracket 1. The fixing part 3 is provided with a mounting position for supporting the pipe fitting. The pipe fitting can rotate freely on the mounting position. The mounting position is specially designed to fix and support the pipe fitting. Its purpose is to provide a stable platform so that the pipe fitting can rotate on this basis. The rotation of the pipe fitting on the mounting position is intended to adjust the specific position where the pipe fitting surface contacts the grinding wheel 4, so as to ensure that every part of the pipe fitting surface can be evenly and effectively polished by the grinding wheel 4. In this process, the key is to control the angle of each rotation of the pipe fitting to ensure that the grinding wheel 4 can cover and polish the entire outer surface of the pipe fitting through continuous and fixed-angle rotation, so as to achieve a comprehensive and uniform processing effect.

[0031] Among them, the moving path of the grinding wheel 4 is to move along the length direction of the pipe fitting. The outer ring surface of the grinding wheel 4 is provided with an arc groove adapted to the pipe fitting. The outer ring surface of the grinding wheel 4 is annularly arranged with arc grooves. This design enables the curved surface of the arc groove to fit tightly on the surface of the pipe fitting when the grinding wheel 4 rotates. Through the continuous rotation of the grinding wheel 4 and the movement of the grinding wheel 4 along the surface of the pipe fitting, the cooperation between the two ensures that the grinding wheel 4 can efficiently contact the surface of the pipe fitting and realize comprehensive grinding of the surface of the pipe fitting. This process not only ensures the uniformity of grinding, but also improves the grinding efficiency.

[0032] Embodiment 2

[0033] like Figure 1-Figure 4 As shown, based on the first embodiment, this embodiment provides a linkage between the support body 2 and the grinding wheel 4, which is as follows:

[0034] The support 1 is provided with a plurality of tracks 5 arranged along the length direction of the support 1, one of the tracks 5 is provided with teeth, and a driving gear 11 is rotatably installed on the support 2. When the support 2 moves along the support 1, the driving gear 11 meshes with the teeth on the track 5, and this meshing mechanism effectively causes the driving gear 11 to rotate accordingly. In this way, the moving process not only realizes the position change of the support 2, but also transmits power through the interaction between the gear and the teeth. The movement of the support 2 drives the driving gear 11 to rotate synchronously, and the driving gear 11 meshes with the teeth on the track 5. A gearbox is fixed on the support 2, and the driving gear 11 and the grinding wheel 4 are connected to the gearbox through the first connecting shaft 16 and the second connecting shaft 17 respectively. The gearbox configured between the gear and the grinding wheel 4 has a key function: it can effectively drive the grinding wheel 4 to rotate as an intermediary of power transmission when the gear rotates. More significantly, the gearbox can flexibly adjust and amplify the speed ratio, so that the rotation speed of the grinding wheel 4 far exceeds the rotation speed of the driving gear 11. This feature is crucial for grinding the outer wall of pipe fittings, as it can significantly improve grinding efficiency and ensure that the surface of the pipe fittings is treated evenly and finely.

[0035] The first gear 12, the second gear 13, the third gear 14 and the fourth gear 15 are installed in rotation inside the gearbox. The first gear 12 is connected to the driving gear 11 through the first connecting shaft 16, the second gear 13 is meshed with the first gear 12, the second gear 13 is coaxially connected with the third gear 14, the third gear 14 is meshed with the fourth gear 15, and the fourth gear 15 is connected to the grinding wheel 4 through the second connecting shaft 17. The number of teeth on the first gear 12 is greater than the number of teeth on the second gear 13, and the number of teeth on the third gear 14 is greater than the number of teeth on the fourth gear 15. The gearbox achieves a significant speed change effect through the precise matching of a series of gears, that is, the sequential rotation of the first gear 12, the second gear 13, the third gear 14 and the fourth gear 15. Specifically, when the driving gear 11 completes one rotation, due to the specific gear ratios between the gears (such as the first gear 12 and the second gear 13 have a gear ratio of 2:1, and the third gear 14 and the fourth gear 15 have a gear ratio of 2:1), the number of rotations of the fourth gear 15 will be much greater than the initial number of rotations of the first gear 12. Taking the given ratio as an example, this design enables the grinding wheel 4 to complete four rotations when the driving gear 11 rotates one circle, thereby significantly amplifying the rotation speed and enhancing the effect and efficiency of the grinding wheel 4 on the outer wall of the pipe.

[0036] Embodiment 3

[0037] like Figure 1-Figure 5 As shown, based on the first and second embodiments, this embodiment provides a method for installing the bracket 1, which is as follows:

[0038] The bracket 1 includes fixed plates fixed at both ends thereof, four tracks 5 are connected between the two fixed plates, and the four tracks 5 are respectively arranged at the four corners of the fixed plates. A slide plate corresponding to the track 5 is provided on the support body 2, and the support body 2 is slidably installed on the track 5 through the slide plate. Under the connection between the slide plate and the track 5, the support body 2 can slide freely on the track 5.

[0039] A V-shaped protrusion is provided on the upper surface of the track 5, and a V-shaped groove adapted to the V-shaped protrusion is provided on the skateboard. The connection mode of the V-shaped groove and the V-shaped protrusion can ensure a lateral limit effect on the skateboard to prevent the skateboard from shaking left and right.

[0040] A screw rod 6 is rotatably mounted on the bracket 1, and the two ends of the screw rod 6 are rotatably mounted on two fixed plates respectively. The length direction of the screw rod 6 is set along the length direction of the bracket 1. A slider 7 is fixed on the support body 2, and a through screw hole meshing with the screw rod 6 is provided inside the slider 7. When the screw rod 6 is driven to rotate by the motor, the motor is firmly mounted on the bracket 1, and its output shaft is directly connected to the screw rod 6. As the motor output shaft rotates, the screw rod 6 rotates synchronously therewith. This rotational action in turn drives the slider 7 sleeved on the outside of the screw rod 6. The slider 7 can slide smoothly along the axial direction of the screw rod 6 due to the tight meshing of the internal screw hole and the screw thread of the screw rod 6. Therefore, under the drive of the screw rod 6, the slider 7 can pull the support body 2 on the bracket 1 to achieve a smooth sliding displacement.

[0041] A rotatable support column 8 is rotatably installed on the fixed part 3, and the number of the support columns 8 is at least two. The length direction of the support columns 8 is parallel to the axis of the pipe fitting. When the number of the support columns 8 is two, the pipe fitting is supported by the two support columns 8. When the support columns 8 rotate, they can drive the pipe fitting to rotate, and when the support columns 8 drive the pipe fitting to rotate, the grinding wheel 4 is in a state of being detached from the pipe fitting, thereby preventing the force applied by the grinding wheel 4 to the pipe fitting from hindering the rotation of the pipe fitting.

[0042] A loading rack 9 is slidably mounted on the bracket 1, and a plug shaft 10 for installing pipe fittings is rotatably mounted on the loading rack 9. Since the plug shaft 10 can rotate on the loading rack 9, one end of the pipe fitting can be sleeved on the plug shaft 10 and can rotate freely. The movement of the loading rack 9 can be driven by a cylinder or other means to drive the loading rack 9 to slide.

[0043] The insert shaft 10 is provided with a plurality of protrusions. When the pipe fitting is sleeved on the insert shaft 10, the insert shaft 10 can support the pipe fitting.

[0044] A motor for driving the insertion shaft 10 to rotate is fixed on the loading rack 9. A limit groove is provided on the loading rack 9. The limit groove is a right-angled groove. When the insertion shaft 10 rotates to a part of it close to the plane at the bottom of the limit groove, the pipe fitting is set horizontally. Under the push of the loading rack 9, the pipe fitting just falls on the support column 8. When the grinding is successful, the support body 2 is away from the pipe fitting, and the insertion shaft 10 will drive the pipe fitting to rotate until it is tilted upward, which is convenient for replacing the pipe fitting.

[0045] Working principle:

[0046] Before the pipe grinding process begins, preparation work is first performed: the support body 2 is moved to one end of the bracket 1, and the loading rack 9 is moved to the other end of the bracket 1. At this time, the insertion shaft 10 is adjusted to a vertical upward state so that the operator can easily insert the pipe into the insertion shaft 10. Subsequently, the loading rack 9 carries the insertion shaft 10 and the pipe and rotates 90 degrees and then slides to align and place the pipe on the support columns 8 on both sides of the fixing part 3.

[0047] Once the pipe is in place, the screw 6 starts to work, driving the support 2 to slide smoothly from one end to the other along the bracket 1. During this process, the gears built into the support 2 are tightly meshed with the teeth on the track 5, achieving smooth movement while transmitting power through the gearbox to drive the grinding wheel 4 to rotate. As the support 2 moves, the grinding wheel 4 slides closely against the surface of the pipe, performing the grinding operation to ensure uniform treatment of the outer wall of the pipe.

[0048] When the support body 2 reaches the other end of the bracket 1, it will stop moving and give the support column 8 on the fixing part 3 a short rotational force. The rotation of the support column 8 drives the pipe to rotate a certain angle, and then the support body 2 slides in the opposite direction to grind the newly exposed part of the pipe. This process is repeated until the outer wall of the pipe is fully polished.

[0049] After the grinding operation is completed, the support body 2 automatically moves away from the pipe fitting to prepare for the replacement of the pipe fitting. At the same time, the loading rack 9 and the insertion shaft 10 work together to lift and remove the polished pipe fitting from the fixing part 3, and the insertion shaft 10 rotates back to the vertical state to prepare for the next operation. At this time, the operator can easily remove the polished pipe fitting and replace it with a new pipe fitting for the next round of grinding operation.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A pipe grinding device, comprising a bracket (1), It is characterized in that Also includes: A support body (2), the support body (2) being slidably mounted on the bracket (1), and a grinding wheel (4) capable of grinding the surface of the pipe being rotatably mounted on the support body (2); A fixing portion (3), the fixing portion (3) being mounted inside the bracket (1), the fixing portion (3) being provided with a mounting position for supporting the pipe fitting, and the pipe fitting being able to rotate freely on the mounting position; The moving path of the grinding wheel (4) is along the length direction of the pipe, and an arc-shaped groove matching the pipe is provided on the outer annular surface of the grinding wheel (4); The support (1) is provided with a plurality of rails (5) arranged along the length direction of the support (1), one of the rails (5) being provided with teeth, a driving gear (11) being rotatably mounted on the support body (2), the driving gear (11) being meshed and connected with the teeth on the rail (5), a gearbox being fixed on the support body (2), the driving gear (11) and the grinding wheel (4) being connected to the gearbox via a first connecting shaft (16) and a second connecting shaft (17), respectively; A first gear (12), a second gear (13), a third gear (14) and a fourth gear (15) are rotatably mounted inside the gearbox; the first gear (12) is connected to the driving gear (11) via a first connecting shaft (16); the second gear (13) is meshedly connected to the first gear (12); the second gear (13) is coaxially connected to the third gear (14); the third gear (14) is meshedly connected to the fourth gear (15); the fourth gear (15) is connected to the grinding wheel (4) via a second connecting shaft (17); the number of teeth on the first gear (12) is greater than the number of teeth on the second gear (13); the number of teeth on the third gear (14) is greater than the number of teeth on the fourth gear (15).

2. A pipe grinding device according to claim 1, It is characterized in that A screw rod (6) is rotatably mounted on the bracket (1), a slider (7) is fixed on the support body (2), and a through screw hole meshing with the screw rod (6) is provided inside the slider (7).

3. A pipe grinding device according to claim 1, It is characterized in that A rotatable support column (8) is rotatably mounted on the fixing portion (3), and the number of the support columns (8) is at least two.

4. A pipe grinding device according to claim 1, It is characterized in that A loading rack (9) is slidably mounted on the bracket (1), and an insert shaft (10) for mounting a pipe fitting is rotatably mounted on the loading rack (9).

5. A pipe grinding device according to claim 1, It is characterized in that The bracket (1) comprises fixing plates fixed at both ends thereof, four tracks (5) are connected between the two fixing plates, the four tracks (5) are respectively arranged at four corners of the fixing plates, and the support body (2) is provided with slide plates corresponding to the tracks (5) one by one.

6. A pipe grinding device according to claim 5, It is characterized in that The upper surface of the track (5) is provided with a V-shaped protrusion, and the slide plate is provided with a V-shaped sliding groove adapted to the V-shaped protrusion.

7. A pipe grinding device according to claim 4, It is characterized in that The inserting shaft (10) is provided with a plurality of protrusions.

8. A pipe grinding device according to claim 4, It is characterized in that A motor for driving the insertion shaft (10) to rotate is fixed on the loading rack (9), and a limiting groove is provided on the loading rack (9).

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