Stainless steel pipeline piece inner wall polishing device

Abstract

The utility model relates to a stainless steel pipeline piece inner wall polishing device which aims at solving the problems that in the prior art, manual polishing is low in efficiency and poor in quality. The device comprises a fixed seat, a mounting frame, a bearing seat, a turntable, a gear transmission device, a motor, a clamping device, a sliding rail, an inverted L-shaped sliding plate, a sliding block, a rotating shaft, a drill bit, an electric motor and a hydraulic pump. The motor drives the transmission device to drive the bearing seat and the rotary disc to rotate synchronously, the clamping device stabilizes the pipeline piece, the inverted-L-shaped sliding plate slides up and down along the sliding rail through the sliding block, the electric motor drives the rotating shaft to drive the drill bit to rotate to polish the inner wall of the pipeline piece, and the hydraulic pump drives the sliding plate to move to polish different positions. The device is mechanically operated, the grinding efficiency and quality are improved, it is guaranteed that the inner wall is smooth and flat, and operation is safe. The device is suitable for efficient and high-quality grinding of the inner wall of the stainless steel pipeline.

Description

Technical Field

[0001] This application relates to the field of pipe fitting processing equipment, specifically a device for grinding the inner wall of stainless steel pipe fittings. Background Technology

[0002] During the manufacturing process of stainless steel pipe fittings, burrs and uneven welds often appear on the inner wall, affecting the pipe's sealing and the smoothness of its connection with other internal structures. Traditional inner wall grinding methods mostly involve manual hand-held grinding tools, which is not only inefficient and labor-intensive, but also difficult to guarantee grinding quality, easily leading to uneven grinding, over-grinding, and damage to pipe fittings and waste of resources. Therefore, there is an urgent need for a device that can efficiently, uniformly, and stably grind the inner wall of stainless steel pipe fittings. Utility Model Content

[0003] The purpose of this utility model is to provide a device for grinding the inner wall of stainless steel pipe fittings, so as to solve the problems of low efficiency and poor quality of manual grinding in the prior art. To achieve the above objective, this application provides the following technical solution: a device for grinding the inner wall of stainless steel pipe fittings, comprising:

[0004] A fixed base is provided with a mounting bracket on its side wall. A bearing seat is mounted on the fixed base. A turntable is provided at the upper end of the bearing seat, and a gear transmission device and a motor are provided at the lower end. The motor drives the transmission device to rotate the bearing seat, thereby causing the turntable to rotate synchronously with the bearing seat.

[0005] A clamping device is provided on the turntable to securely clamp the pipe fittings placed on the turntable, ensuring that the pipe fittings do not shift during the grinding process;

[0006] A slide rail, which is vertically mounted on the mounting bracket;

[0007] An inverted L-shaped slide plate has a slider on its side wall that is slidably connected to the slide rail, allowing it to slide up and down along the slide rail; a rotating shaft is provided on the bottom wall of the inverted L-shaped slide plate, with a drill bit connected to one end of the rotating shaft and an electric motor connected to the other end. The electric motor is used to drive the rotating shaft to rotate, thereby driving the drill bit to rotate and polish the inner wall of the pipe fitting.

[0008] A hydraulic pump is mounted on the mounting bracket, with its axis parallel to the extension direction of the slide rail. The telescopic end of the hydraulic pump is connected to the inverted L-shaped slide plate, which drives the inverted L-shaped slide plate to slide up and down along the slide rail, so as to realize the contact between the drill bit and the inner wall of the pipe fitting at different positions for grinding operations.

[0009] In a preferred embodiment, this technical solution further includes a mounting groove, which is elongated and disposed on the bottom wall of the inverted L-shaped slide plate, and is used to mount the rotating shaft.

[0010] In a preferred embodiment of this technical solution, two rotating shafts are provided in the mounting groove. The two rotating shafts are respectively connected to the electric motor through a belt pulley transmission mechanism. The electric motor is connected to a double rotating wheel, thereby realizing the synchronous rotation of the two rotating shafts.

[0011] In a preferred embodiment, the present technical solution further includes a protective sleeve, which is fitted onto the outside of the rotating shaft and fixed to the bottom wall of the inverted L-shaped sliding plate.

[0012] In a preferred embodiment, this technical solution further includes a limiting block, which is disposed on the side wall of the protective sleeve and located on the opposite side of the two protective sleeves, for limiting the distance between the two rotating shafts.

[0013] In a preferred embodiment of this technical solution, the clamping device includes a fixed block, a rotating disk, a protrusion, a screw, an annular hinge block, and a telescopic column. The fixed block is disposed on the rotating disk, which has a double-layered annular structure. A protrusion is connected to the side wall of the bottom annular structure, and the side wall of the protrusion is provided with an internal threaded hole. The screw connects the fixed block and the protrusion. The two annular rings of the rotating disk are connected by multiple fixed columns, and multiple annular hinge blocks are evenly hinged around the two annular rings of the rotating disk. One end of the telescopic column is hinged to the rotating disk and located on the outer periphery of the rotating disk. The middle part of the telescopic column extends into the annular hinge block, and the other end contacts the outer wall of the pipe fitting. Rotating the screw can adjust the position of the rotating disk, thereby driving the telescopic column to extend and retract within the annular hinge block, causing its end to clamp or release the pipe fitting located within the rotating disk.

[0014] In a preferred embodiment, this technical solution also includes wheels, which are disposed at one end of the telescopic column and used to abut against the outer wall of the pipe fitting.

[0015] In a preferred embodiment of this technical solution, the shape of the annular hinge block is adapted to that of the telescopic column.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] This invention utilizes a motor-driven gear transmission device to synchronously rotate the bearing housing and turntable. Simultaneously, a hydraulic pump drives an inverted L-shaped slide plate to slide up and down along a guide rail, allowing the drill bit to quickly and evenly grind the inner wall of the pipe fitting. This mechanized operation significantly shortens grinding time and greatly improves work efficiency. Through precise mechanical control, this invention ensures that the drill bit performs uniform and fine grinding at all locations on the inner wall of the pipe fitting, thereby significantly improving grinding quality and resulting in a smoother, flatter inner wall surface. The invention also employs a clamping device to securely hold the pipe fitting, preventing displacement during grinding. Furthermore, the mechanized operation reduces direct contact between the operator and the grinding tools, significantly improving operational safety. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the stainless steel pipe fitting inner wall grinding device in use according to an embodiment of this application.

[0019] Figure 2 This is a three-dimensional schematic diagram of a stainless steel pipe fitting inner wall grinding device proposed in an embodiment of this application.

[0020] Figure 3 This is a side view of a stainless steel pipe fitting inner wall grinding device proposed in an embodiment of this application;

[0021] In the diagram: 1. Fixed base; 2. Mounting bracket; 3. Bearing seat; 4. Turntable; 5. Gear transmission device; 6. Motor; 7. Clamping device; 8. Slide rail; 9. Inverted L-shaped slide plate; 10. Slider; 11. Rotating shaft; 12. Drill bit; 13. Electric motor; 14. Hydraulic pump; 15. Mounting slot; 16. Belt pulley transmission mechanism; 17. Double rotating wheel; 18. Protective sleeve; 19. Limiting block; 20. Fixing block; 21. Rotating disk; 22. Protrusion; 23. Screw; 24. Annular hinge block; 25. Telescopic column; 26. Wheel. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] It should be noted that in the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0026] In order to solve the technical problems in the background art, such as Figure 1-3 As shown, this application provides a technical solution: a device for grinding the inner wall of stainless steel pipe fittings, characterized as follows:

[0027] The fixed base 1 serves as the basic support component of the entire device, with a mounting bracket 2 fixedly installed on its side wall. The mounting bracket 2 is used to install other main components, ensuring the relative position stability of each component. A bearing seat 3 is mounted above the fixed base 1, with a turntable 4 mounted on its upper end. A gear transmission device 5 and a motor 6 are connected to the lower end of the bearing seat 3. The motor 6 drives the gear transmission device 5, causing the bearing seat 3 to rotate, thus making the turntable 4 rotate synchronously with the bearing seat 3. This design ensures the smooth rotation of the turntable 4, providing a foundation for the stable clamping of pipe fittings and the grinding of the inner wall. A clamping device 7 is mounted on the turntable 4 to securely clamp the pipe fittings placed on it. The design of the clamping device 7 should ensure that the pipe fittings do not shift during grinding, thereby improving grinding accuracy and efficiency. A slide rail 8 is vertically mounted on the mounting bracket 2, providing guidance for the up-and-down sliding of the inverted L-shaped slide plate 9. The side wall of the inverted L-shaped slide plate 9 is provided with a slider 10 that slidably connects to the slide rail 8, allowing it to slide up and down along the slide rail 8. The bottom wall of the inverted L-shaped slide plate 9 is equipped with a rotating shaft 11. One end of the rotating shaft 11 is connected to a drill bit 12, and the other end is connected to an electric motor 13. The electric motor 13 drives the rotating shaft 11 to rotate, thereby driving the drill bit 12 to rotate and grind the inner wall of the pipe fitting. The hydraulic pump 14 is mounted on the mounting bracket 2, and its axis is parallel to the extension direction of the slide rail 8. The telescopic end of the hydraulic pump 14 is connected to the inverted L-shaped slide plate 9 and is used to drive the inverted L-shaped slide plate 9 to slide up and down along the slide rail 8. By controlling the hydraulic pump 14, the drill bit 12 can contact different positions with the inner wall of the pipe fitting, so as to perform a comprehensive grinding operation.

[0028] In operation, the stainless steel pipe fitting to be ground is placed on the turntable 4 and securely clamped by the clamping device 7. The motor 6 is started, driving the bearing seat 3 and turntable 4 to rotate synchronously via the gear transmission device 5, thus rotating the pipe fitting. The electric motor 13 is started, driving the rotating shaft 11 to rotate, thereby rotating the drill bit 12. By controlling the extension and retraction of the hydraulic pump 14, the inverted L-shaped slide plate 9 is driven to slide up and down along the slide rail 8, allowing the drill bit 12 to contact different heights of the inner wall of the pipe fitting. Through the automatic rotation of the pipe fitting, circumferential grinding of the inner wall is achieved, thus completing the all-around grinding operation of the inner wall of the pipe fitting. After the inner wall of the pipe fitting is evenly ground, the motor 6 and electric motor 13 are stopped, the clamping device 7 is released, and the ground pipe fitting is removed.

[0029] It should be noted that the mounting groove 15 is elongated and located on the bottom wall of the inverted L-shaped slide plate 9, specifically in the central area of ​​the bottom wall. The mounting groove 15 is a through groove, its depth penetrating the bottom wall of the inverted L-shaped slide plate 9. The rotating shaft 11 is connected to the inverted L-shaped slide plate 9 via the mounting groove 15. The design of the mounting groove 15 allows the rotating shaft 11 to be flexibly adjusted on the bottom wall of the inverted L-shaped slide plate 9, adapting to the grinding needs of pipe fittings of different diameters. By adjusting the position of the rotating shaft 11 within the mounting groove 15, optimal contact between the drill bit 12 and the inner wall of the pipe fitting can be achieved, improving the grinding effect.

[0030] Furthermore, two rotating shafts 11 are installed within the mounting groove 15. One end of each shaft 11 is mounted within the mounting groove 15 via a bearing. The bearing is a high-precision ball bearing to ensure smooth rotation of the shaft 11. The other end of each shaft 11 is connected to a drill bit 12 for grinding the inner wall of the pipe fitting. The belt drive mechanism 16 includes a driving pulley and a driven pulley. The driving pulley is mounted on the double-wheel pulley 17 of the electric motor 13, and the driven pulleys are mounted on the two rotating shafts 11 respectively. The belt passes over the driving pulley and the driven pulley to transmit power. The lower end of the electric motor 13 is connected to the double-wheel pulley 17, which drives the two rotating shafts 11 to rotate synchronously through the belt drive mechanism 16. The design of the double-wheel pulley 17 ensures that the rotational speeds of the two rotating shafts 11 are consistent, achieving synchronous grinding.

[0031] It should be noted that the protective sleeve 18 is made of high-strength, wear-resistant engineering plastic or metal. The inner wall of the protective sleeve 18 is designed with an inner hole that matches the outer diameter of the rotating shaft 11, ensuring that the rotating shaft 11 can rotate freely within the protective sleeve 18, while preventing dust and cutting fluid from entering the connection between the rotating shaft 11 and the bearing. The protective sleeve 18 is fitted onto the outside of the rotating shaft 11 and is fixed to the bottom wall of the inverted L-shaped slide plate 9 by bolts or clips.

[0032] It should be noted that the limiting block 19 is disposed on the side wall of the protective sleeve 18, and is located on the opposite side of the two protective sleeves 18. The limiting block 19 is fixed to the side wall of the protective sleeve 18 by bolts to ensure that it will not loosen during use. By setting the limiting block 19 on the side wall of the protective sleeve 18, the distance between the two rotating shafts 11 is effectively limited, ensuring that the two rotating shafts 11 will not interfere with each other during synchronous rotation, thereby improving the stability and reliability of the device.

[0033] It is worth noting that the clamping device 7 includes a fixed block 20, a rotating disk 21, a protrusion 22, a screw 23, an annular hinge block 24, and a telescopic column 25. The fixed block 20 is set on the rotating disk 4, and its function is to provide a stable support point. The fixed block 20 is rectangular in shape, and its bottom has several fixing holes, which are used to firmly connect it to the rotating disk 4 by bolts or other fixing means. The rotating disk 21 adopts a double-layer annular structure. The protrusion 22 is connected to the annular sidewall at the bottom of the rotating disk 21. The two annular rings of the rotating disk 21 are connected by multiple fixing columns to ensure the stability of the structure. The fixing columns are evenly distributed, and the number can be set according to actual needs, generally three. The protrusion 22 is located on the annular sidewall at the bottom of the rotating disk 21, and its sidewall is provided with an internal threaded hole 27. The internal threaded hole 27 is used to connect with the screw 23, and the position adjustment of the rotating disk 21 is achieved through threaded engagement. One end of the screw 23 is connected to the fixed block 20, and the other end is inserted into the internal threaded hole 27 of the protrusion 22. By rotating the screw 23, the position of the rotating disk 21 relative to the fixed block 20 can be adjusted, thereby adjusting the clamping device 7. Annular hinge blocks 24 are evenly hinged on the circumference between the two rings of the rotating disk 21, as shown in the figure. Each annular hinge block 24 is connected to the upper and lower rings of the rotating disk 21 via a hinge shaft, and each annular hinge block 24 can rotate freely around the hinge shaft. The number of annular hinge blocks 24 is set according to actual needs, generally three. One end of the telescopic column 25 is hinged to the rotating disk 4 and located on the outer circumference of the rotating disk 21. The middle part of the telescopic column 25 extends into the annular hinge block 24, and the other end is used to contact the outer wall of the pipe fitting. By rotating the screw 23 to adjust the position of the rotating disk 21, the telescopic column 25 can be driven to extend and retract within the annular hinge block 24, thereby causing its end to clamp or release the pipe fitting located within the rotating disk 21.

[0034] It should be noted that the wheel 26 is mounted on one end of the telescopic column 25 via a bearing, ensuring that the wheel 26 can rotate freely. The wheel 26 is fixed to one end of the telescopic column 25 with bolts or clips to ensure it will not loosen during use. The periphery of the wheel 26 contacts the pipe fitting, and the rotation of the pipe fitting is achieved through friction between the wheel 26 and the turntable 4. By setting the wheel 26 at one end of the telescopic column 25, this embodiment effectively achieves contact with the outer wall of the pipe fitting, ensuring that the pipe fitting does not shift during grinding. The design of the wheel 26 not only improves the stability and reliability of clamping but also reduces wear on the outer wall of the pipe fitting, protecting the surface quality of the pipe fitting.

[0035] It is important to note that the inner diameter of the annular hinge block 24 perfectly matches the outer diameter of the telescopic column 25, ensuring that the telescopic column 25 can freely extend and retract within the annular hinge block 24 while maintaining a stable connection. This design not only improves the movement accuracy of the telescopic column 25 but also reduces wear and extends the service life of the device.

[0036] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for grinding the inner wall of stainless steel pipe fittings, characterized in that, include: A fixed base (1) is provided with a mounting bracket (2) on its side wall. A bearing seat (3) is installed on the fixed base (1). A turntable (4) is provided at the upper end of the bearing seat (3), and a gear transmission device (5) and a motor (6) are provided at the lower end. The motor (6) drives the transmission device to rotate the bearing seat (3), thereby making the turntable (4) rotate synchronously with the bearing seat (3). A clamping device (7) is provided on the turntable (4) to securely clamp the pipe fittings placed on the turntable (4) and ensure that the pipe fittings do not shift during the grinding process. A slide rail (8) is vertically mounted on the mounting bracket (2); An inverted L-shaped sliding plate (9) is provided with a slider (10) on its side wall that is slidably connected to the slide rail (8), allowing it to slide up and down along the slide rail (8); a rotating shaft (11) is provided on the bottom wall of the inverted L-shaped sliding plate (9), one end of which is connected to a drill bit (12), and the other end is connected to an electric motor (13). The electric motor (13) is used to drive the rotating shaft (11) to rotate, thereby driving the drill bit (12) to rotate and polish the inner wall of the pipe fitting; A hydraulic pump (14) is mounted on the mounting bracket (2) and its axial direction is parallel to the extension direction of the slide rail (8). The telescopic end of the hydraulic pump (14) is connected to the inverted L-shaped slide plate (9) to drive the inverted L-shaped slide plate (9) to slide up and down along the slide rail (8) so that the drill bit (12) can contact the inner wall of the pipe at different positions for grinding operations.

2. The stainless steel pipe fitting inner wall grinding device according to claim 1, characterized in that, It also includes a mounting groove (15), which is elongated and located on the bottom wall of the inverted L-shaped slide plate (9), and is used to mount the rotating shaft (11).

3. The stainless steel pipe fitting inner wall grinding device according to claim 2, characterized in that, The mounting slot (15) is provided with two rotating shafts (11). The two rotating shafts (11) are connected to the electric motor (13) through a belt pulley transmission mechanism (16). The electric motor (13) is connected to a double rotating wheel (17) so that the two rotating shafts (11) can rotate synchronously.

4. The stainless steel pipe fitting inner wall grinding device according to claim 3, characterized in that, It also includes a protective sleeve (18), which is fitted on the outside of the pivot (11) and fixed to the bottom wall of the inverted L-shaped slide plate (9).

5. The stainless steel pipe fitting inner wall grinding device according to claim 4, characterized in that, It also includes a limiting block (19), which is disposed on the side wall of the protective sleeve (18) and located on the opposite side of the two protective sleeves (18) to limit the distance between the two rotating shafts (11).

6. The stainless steel pipe fitting inner wall grinding device according to claim 1, characterized in that, The clamping device (7) includes a fixing block (20), a rotating disk (21), a protrusion (22), a screw (23), an annular hinge block (24), and a telescopic column (25). The fixing block (20) is disposed on the rotating disk (4). The rotating disk (21) has a double-layer annular structure, and the bottom annular sidewall is connected to the protrusion (22). The sidewall of the protrusion (22) is provided with an internal thread hole. The screw (23) connects the fixing block (20) and the protrusion (22). The two annular rings of the rotating disk (21) are connected by multiple fixing columns. Multiple annular hinge blocks (24) are evenly hinged around the two rings of the rotating disk (21); one end of the telescopic column (25) is hinged to the turntable (4) and located on the outer periphery of the rotating disk (21), the middle part of the telescopic column (25) extends into the annular hinge block (24), and the other end contacts the outer wall of the pipe fitting. Rotating the screw (23) can adjust the position of the rotating disk (21), thereby driving the telescopic column (25) to extend and retract within the annular hinge block (24), causing its end to clamp or release the pipe fitting located within the rotating disk (21).

7. The stainless steel pipe fitting inner wall grinding device according to claim 6, characterized in that, It also includes a wheel (26), which is disposed at one end of the telescopic column (25) and is used to abut against the outer wall of the pipe fitting.

8. The stainless steel pipe fitting inner wall grinding device according to claim 6, characterized in that, The shape of the annular hinge block (24) is adapted to that of the telescopic column (25).

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