Pipe port chamfering and polishing apparatus

Abstract

The utility model relates to pipe processing machinery technical field discloses a kind of pipe port chamfer and polishing equipment, including base, the support platform, multi-claw centering mechanism, polishing mechanism and driving motor are sequentially arranged on the base along the axial direction of pipe;When using the device, the adjusting sleeve in the polishing mechanism set moves along the spindle axial direction, the connecting rod can be driven to drive adjusting arm to rotate around the first connecting seat, so as to accurately and continuously adjust the radial position of abrasive tool mounting seat. Further, the abrasive tool is quickly adapted to pipes of different diameters, significantly improving the versatility and processing flexibility of the equipment. At the same time, this adjustment method does not require replacing the entire mold or a large number of parts, which simplifies the operation steps and effectively reduces the additional cost caused by the provision of multiple tooling. It is especially suitable for multi-specification, small-batch pipe processing scenarios.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing machinery technology, specifically to a pipe end chamfering and grinding device. Background Technology

[0002] In the pipe processing industry, end chamfering and grinding are crucial processes that directly affect the quality of subsequent welding and connections. Currently, common processing methods rely on operators using handheld angle grinders, which is not only inefficient and labor-intensive but also lacks guaranteed processing accuracy and poses serious safety hazards. Some specialized equipment is typically designed for specific pipe diameters, with fixed grinding head positions or extremely limited adjustment ranges. When processing pipes of different diameters, the machine must be stopped and the entire set of molds or special fixtures replaced, resulting in a cumbersome and time-consuming process. The poor equipment versatility significantly limits production flexibility and increases equipment purchase and maintenance costs for enterprises. Especially when processing the inner rounded corners of pipe ends, traditional equipment requires manual operation based on experience or the use of special inner rounded corner processing attachments. This not only increases the complexity of the process and tool management costs but also frequently leads to production interruptions due to tool changes. Furthermore, it makes it difficult to guarantee consistent processing accuracy, becoming a prominent bottleneck in high-efficiency, automated production lines.

[0003] To address the aforementioned issues, this application proposes a pipe end chamfering and grinding device. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe end chamfering and grinding device to solve the problems of poor equipment versatility, cumbersome adjustment, and lack of efficient and precise inner rounding processing methods in the prior art mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe end chamfering and grinding device, comprising a base, on which a support platform, a multi-jaw centering mechanism, a grinding mechanism, and a drive motor are sequentially arranged along the axial direction of the pipe; the grinding mechanism includes a main shaft driven to rotate by the drive motor, at least two first connecting seats fixed radially to the front end of the main shaft, an adjusting arm hinged to the first connecting seats in the middle, a grinding tool mounting seat disposed at one end of the adjusting arm, and a second connecting seat disposed at the other end of the adjusting arm; the output shaft of the drive motor is connected to the main shaft; an adjusting sleeve that can move axially along the main shaft is sleeved on the main shaft, and a third connecting seat corresponding to the number of the first connecting seats is provided on the adjusting sleeve; a connecting rod is provided between the third connecting seat and the second connecting seat, and the connecting rod is hinged to the third connecting seat and the second connecting seat respectively; when the adjusting sleeve moves, the adjusting arm rotates relative to the first connecting seat through the connecting rod, so as to adjust the position of the grinding tool mounting seat in the radial direction of the main shaft.

[0006] Preferably, the rear end of the adjusting sleeve is connected to an adjusting screw sleeve, which is threadedly connected to the main shaft; the outer wall of the adjusting sleeve is provided with an annular guide groove, and the inner wall of the adjusting screw sleeve is provided with a shoulder that slides with the annular guide groove; rotating the adjusting screw sleeve can drive the adjusting sleeve to move axially along the main shaft.

[0007] Preferably, the mold mounting base is sleeved on the outside of the adjusting arm and fixed by bolts.

[0008] Preferably, the upper and lower ends of the grinding mold mounting base are respectively provided with abrasive plates.

[0009] Preferably, the multi-jaw centering mechanism is a three-jaw chuck or a spring collet.

[0010] Preferably, a chip collection hopper is provided on the base below the grinding mechanism.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention utilizes a grinding mechanism where an adjusting sleeve moves axially along the main shaft, driving a connecting rod to rotate an adjusting arm around a first connecting seat. This allows for precise and continuous adjustment of the radial position of the grinding mold mounting base. Consequently, the grinding mold can quickly adapt to pipes of different diameters, significantly improving the equipment's versatility and processing flexibility. Furthermore, this adjustment method eliminates the need to replace the entire mold set or numerous parts, simplifying operation and effectively reducing the additional costs associated with equipping multiple tooling sets. It is particularly suitable for processing pipes of various specifications in small batches.

[0013] This invention features an adjustable sleeve that moves axially along the main shaft, and a connecting rod that drives the adjusting arm to rotate around the first connecting seat. This allows one end of the mold mounting seat to tilt downwards, thereby precisely achieving the inner rounded corner chamfering of the pipe end. This process does not require additional inner rounded corner processing components; it can be completed using the existing adjustment structure. It is easy to operate and can stably control the accuracy of the inner rounded corner, avoiding processing interruptions caused by changing special tools. It effectively improves the efficiency of inner rounded corner processing and is suitable for the needs of pipe inner rounded corner processing scenarios. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a pipe end chamfering and grinding device according to the present invention;

[0015] Figure 2 This is a schematic diagram of the main structure of the grinding mechanism in a pipe end chamfering and grinding equipment of this utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the spindle in a pipe end chamfering and grinding device according to the present invention;

[0017] Figure 4 This is a schematic diagram of the main structure of the adjusting sleeve and adjusting screw sleeve in a pipe end chamfering and grinding device of this utility model;

[0018] Figure 5 This is a cross-sectional view of the grinding mechanism and drive motor in a pipe end chamfering and grinding device of this utility model;

[0019] Figure 6 This is an exploded structural diagram of the adjusting arm and grinding mold mounting base in a pipe end chamfering and grinding equipment according to the present invention.

[0020] Figure 7 This is a schematic diagram showing the state of the grinding mechanism to the inner corner of the round pipe in a pipe end chamfering and grinding equipment according to this utility model;

[0021] In the diagram: 1. Base; 2. Support platform; 3. Multi-jaw centering mechanism; 4. Grinding mechanism; 5. Drive motor; 6. Spindle; 7. First connecting seat; 8. Adjusting arm; 9. Grinding mold mounting seat; 91. Grinding plate; 10. Second connecting seat; 11. Adjusting sleeve; 12. Third connecting seat; 13. Connecting rod; 14. Adjusting screw sleeve; 15. Annular guide groove; 16. Shoulder; 17. Chip hopper. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-7This utility model provides a technical solution: a pipe end chamfering and grinding device, including a base 1, on which a support platform 2, a multi-jaw centering mechanism 3, a grinding mechanism 4, and a drive motor 5 are sequentially arranged along the axial direction of the pipe; the grinding mechanism 4 includes a main shaft 6 driven to rotate by the drive motor 5, at least two first connecting seats 7 fixed radially to the front end of the main shaft 6, an adjusting arm 8 hinged to the first connecting seats 7 in the middle, a grinding tool mounting seat 9 disposed at one end of the adjusting arm 8, and a second connecting seat 9 disposed at the other end of the adjusting arm 8. Connecting seat 10; the output shaft of drive motor 5 is connected to main shaft 6; an adjusting sleeve 11 that can move along the axial direction of main shaft 6 is sleeved on main shaft 6, and a third connecting seat 12 corresponding to the number of first connecting seats 7 is provided on adjusting sleeve 11. A connecting rod 13 is provided between the third connecting seat 12 and the second connecting seat 10, and the connecting rod 13 is hinged to the third connecting seat 12 and the second connecting seat 10 respectively; when adjusting sleeve 11 moves, it drives adjusting arm 8 to rotate relative to the first connecting seat 7 through connecting rod 13, so as to adjust the position of grinding mold mounting seat 9 in the radial direction of main shaft 6. In the pipe end chamfering and grinding operation, the base 1 provides overall support for the equipment, the support platform 2 carries the pipe to be processed, and the multi-jaw centering mechanism 3 centers and clamps the pipe to ensure processing stability. After the drive motor 5 starts, it drives the spindle 6 to rotate through the output shaft. The spindle 6 then drives the first connecting seat 7, which is radially fixed to its front end, to rotate synchronously. Since the middle part of the adjusting arm 8 is hinged to the first connecting seat 7, the adjusting arm 8 rotates with the first connecting seat 7, so that the grinding tool mounting seat 9 at one end of the adjusting arm 8 can grind the pipe end. When it is necessary to adjust the grinding tool mounting seat 9... When tilting the angle to achieve different chamfer angles, the adjusting sleeve 11 fitted on the main shaft 6 moves axially along the main shaft 6. The third connecting seat 12 on the adjusting sleeve 11 moves with it. The third connecting seat 12 pushes and pulls the second connecting seat 10 at the other end of the adjusting arm 8 through the hinged connecting rod 13, causing the adjusting arm 8 to rotate around the hinge point with the first connecting seat 7, thereby changing the tilt angle of the mold mounting seat 9 (e.g., tilting one end of the mold mounting seat 9 downwards can chamfer the inner round corner). At the same time, the radial position of the mold mounting seat 9 can also be adjusted to adapt to different pipe specifications and chamfer requirements.

[0024] The rear end of the adjusting sleeve 11 is connected to an adjusting screw sleeve 14, which is connected to the main shaft 6 by a threaded connection. The outer wall of the adjusting sleeve 11 is provided with an annular guide groove 15, and the inner wall of the adjusting screw sleeve 14 is provided with a shoulder 16 that slides with the annular guide groove 15. Rotating the adjusting screw sleeve 14 can drive the adjusting sleeve 11 to move axially along the main shaft 6. When it is necessary to adjust the tilt angle of the grinding mold mounting base 9 through the second connecting seat 10, the adjusting sleeve 11 must first be driven to move axially along the main shaft 6. Since the rear end of the adjusting sleeve 11 is connected to the adjusting screw sleeve 14, and the adjusting screw sleeve 14 is connected to the main shaft 6 through a threaded connection, the annular guide groove 15 on the outer wall of the adjusting sleeve 11 slides into contact with the shoulder 16 on the inner wall of the adjusting screw sleeve 14. When the adjusting screw sleeve 14 is rotated, the thread action causes the adjusting screw sleeve 14 to move axially along the main shaft 6. The shoulder 16 slides in the annular guide groove 15 and drives the adjusting sleeve 11 to move axially synchronously, providing a basis for the subsequent third connecting seat 12 and connecting rod 13 to push the second connecting seat 10 to adjust the tilt angle of the grinding mold mounting base 9.

[0025] The grinding tool mounting base 9 is sleeved on the outside of the adjusting arm 8 and fixed with bolts. This mounting method allows for initial adjustment of the grinding tool mounting base 9's position on the adjusting arm 8 according to grinding requirements. Once the grinding tool mounting base 9 is adjusted to the appropriate tilt angle, it is fixed to the adjusting arm 8 with bolts, ensuring that the grinding tool mounting base 9 will not shift relative to the adjusting arm 8 during grinding, thus guaranteeing the accuracy of chamfering at different angles.

[0026] The upper and lower ends of the grinding mold mounting base 9 are respectively provided with abrasive plates 91. During the grinding operation, the grinding mold mounting base 9 rotates with the adjusting arm 8 and maintains the set tilt angle. Since the upper and lower ends of the grinding mold mounting base 9 are respectively provided with abrasive plates 91, the abrasive plates 91 contact the pipe end with the grinding mold mounting base 9, and achieve chamfering and grinding of the corresponding angle through friction. The upper and lower abrasive plates 91 can work separately or simultaneously, improving processing efficiency and adaptability.

[0027] The multi-jaw centering mechanism 3 is a three-jaw chuck or a spring collet. When fixing the pipe to be processed, the three-jaw chuck clamps the pipe by synchronously moving radially with its three jaws, while the spring collet clamps the pipe through elastic deformation. Both structures ensure that the pipe remains centered during processing, preventing pipe offset from affecting the chamfering accuracy corresponding to the tilt angle of the mold mounting base 9.

[0028] A chip collection hopper 17 is provided on the base 1 below the grinding mechanism 4. When the grinding mechanism 4 grinds the pipe end at different angles, it will generate metal chips and other waste. The chip collection hopper 17 on the base 1 below the grinding mechanism 4 can collect these falling waste materials, preventing them from scattering into the equipment or working environment, facilitating subsequent cleaning and maintaining the cleanliness of the equipment and the orderliness of the working environment.

[0029] Working principle:

[0030] When using this pipe end chamfering and grinding equipment, first place the pipe to be processed on the support table 2, push the pipe so that its end is aligned with the grinding mechanism 4, and operate the multi-jaw centering mechanism 3 (three-jaw chuck or spring collet) to clamp the pipe and ensure its stability. If the chamfer angle needs to be adjusted, rotate the adjusting screw sleeve 14. Because the adjusting screw sleeve 14 is threaded with the main shaft 6, it will move axially along the main shaft 6, and its inner wall shoulder 16 will slide in the annular guide groove 15 of the adjusting sleeve 11, causing the adjusting sleeve 11 to move synchronously. The third connecting seat 12 on the adjusting sleeve 11 pushes and pulls the second connecting seat 10 of the adjusting arm 8 through the connecting rod 13, so that the adjusting arm 8 rotates around the first connecting seat 7, thereby changing the tilt angle of the grinding mold mounting seat 9. If an inner angle is to be chamfered, tilt one end of the grinding mold mounting seat 9 downward; adjust accordingly for other angles. At the same time, the grinding mold mounting seat 9 can slide along the adjusting arm 8, and after adjusting to a suitable radial position, it can be fixed with bolts to adapt to different pipe specifications. Start the drive motor 5. The spindle 6 drives the adjusting arm 8 and the mold mounting base 9 to rotate. The abrasive plates 91 at the upper and lower ends of the mold mounting base 9 contact the pipe end to complete the chamfering and grinding. The grinding debris falls into the chip collection hopper 17 below. After processing is complete, turn off the motor, release the multi-jaw centering mechanism 3, and remove the pipe.

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A pipe end chamfering and grinding device, comprising a base (1), characterized in that: The base (1) is provided with a support platform (2), a multi-jaw centering mechanism (3), a grinding mechanism (4), and a drive motor (5) sequentially along the axial direction of the tube. The grinding mechanism (4) includes a main shaft (6) driven to rotate by the drive motor (5), at least two first connecting seats (7) fixed radially to the front end of the main shaft (6), an adjusting arm (8) hinged to the first connecting seats (7) in the middle, a grinding tool mounting seat (9) provided at one end of the adjusting arm (8), and a second connecting seat (10) provided at the other end of the adjusting arm (8). The output shaft of the drive motor (5) is connected to the main shaft (6). The main shaft (6) is fitted with an adjusting sleeve (11) that can move along the axial direction of the main shaft (6). The adjusting sleeve (11) is provided with a third connecting seat (12) corresponding to the number of the first connecting seats (7). A connecting rod (13) is provided between the third connecting seat (12) and the second connecting seat (10). The connecting rod (13) is hinged to the third connecting seat (12) and the second connecting seat (10) respectively. When the adjusting sleeve (11) moves, it drives the adjusting arm (8) to rotate relative to the first connecting seat (7) through the connecting rod (13) to adjust the position of the grinding tool mounting seat (9) in the radial direction of the main shaft (6).

2. The pipe end chamfering and grinding equipment according to claim 1, characterized in that: The rear end of the adjusting sleeve (11) is connected to an adjusting screw sleeve (14), and the adjusting screw sleeve (14) is connected to the main shaft (6) by a threaded connection; the outer wall of the adjusting sleeve (11) is provided with an annular guide groove (15), and the inner wall of the adjusting screw sleeve (14) is provided with a shoulder (16) that slides with the annular guide groove (15); rotating the adjusting screw sleeve (14) can drive the adjusting sleeve (11) to move axially along the main shaft (6).

3. The pipe end chamfering and grinding equipment according to claim 1, characterized in that: The grinding wheel mounting base (9) is sleeved on the outside of the adjusting arm (8) and fixed by bolts.

4. The pipe end chamfering and grinding equipment according to claim 3, characterized in that: The upper and lower ends of the grinding tool mounting base (9) are respectively provided with abrasive plates (91).

5. The pipe end chamfering and grinding equipment according to claim 1, characterized in that: The multi-jaw centering mechanism (3) is a three-jaw chuck or a spring collet.

6. The pipe end chamfering and grinding equipment according to claim 1, characterized in that: A chip collection hopper (17) is provided on the base (1) below the grinding mechanism (4).

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