Saw blade structure for pipe cutting

Abstract

The utility model discloses a pipe cutting saw blade structure relates to saw blade technical field, including cutting blade, cutting blade is annular, cutting blade inner side is provided with mounting piece, mounting piece middle annular array is provided with mounting hole no. 1, mounting piece both sides are provided with polishing piece, polishing piece includes mounting disk, mounting disk is annular, mounting hole no. A first mounting hole is formed in the mounting piece, connecting arms are fixedly arranged on the inner side of the mounting disc at equal intervals, connecting holes are formed in the connecting arms and correspond to the first mounting hole, the connecting holes in the mounting disc are connected with the first mounting hole in the mounting piece through connecting bolts, and a polishing disc is arranged on the outer surface of the mounting disc. When the grinding piece needs to be replaced, the abraded grinding piece can be easily taken down from the mounting piece only by screwing off the connecting bolt, and then a new grinding piece is mounted, so that the replacement process is greatly simplified, and the replacement difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of saw blade technology, specifically a saw blade structure for tubular cutting. Background Technology

[0002] In modern industrial production and manufacturing, pipes are widely used in many industries such as construction, machinery, chemicals, and automobiles. From pipelines used to transport water and gas in construction, to pipes that form the framework of equipment in machinery manufacturing, to corrosion-resistant pipelines in the chemical industry, and cooling pipes for automobile engines, pipes are used everywhere. In the process of pipe processing, precise cutting is a crucial step.

[0003] Chinese utility model patent application number 202420018113.3 provides a saw blade structure that can be used for both cutting and grinding. By integrating the saw blade and grinding disc onto a reinforcing base plate, the cut surface is ground after the saw blade has completed the cutting, thereby improving cutting efficiency and reducing enterprise costs.

[0004] However, during the use of the aforementioned equipment, it was found that the grinding disc continuously contacts and rubs against the material surface during the saw blade's cutting process. With increased usage time and accumulated cutting workload, the wear of the grinding disc gradually intensifies. When the wear reaches a certain level, its grinding effect significantly decreases. While the locking block and positioning groove are tightly fitted to ensure the stability of the grinding disc during operation, this also makes it difficult to remove the locking block from the positioning groove when the grinding disc needs to be replaced, thus making it difficult to replace the grinding disc separately and increasing the saw blade replacement cost. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a saw blade structure for tubular cutting, which solves the problem mentioned in the background technology that when the grinding disc needs to be replaced, the locking block is difficult to remove from the positioning groove, making it difficult to replace the grinding disc separately and increasing the replacement cost of the saw blade.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a saw blade structure for tubular cutting, comprising a cutting blade in the shape of a ring, an mounting plate on the inner side of the cutting blade, a mounting hole 1 in the middle of the mounting plate in a ring-shaped array, grinding components mounted on both sides of the mounting plate, the grinding components including a mounting disc in the shape of a ring, connecting arms fixedly arranged at equal intervals on the inner side of the mounting disc, connecting holes on the connecting arms corresponding to the mounting hole 1, the connecting holes on the mounting disc and the mounting hole 1 on the mounting blade being connected by connecting bolts, and a grinding disc on the outer surface of the mounting disc.

[0007] Preferably, the cutting blade is annular, with serrations evenly spaced on the outer annular ring and mounting grooves evenly spaced on the inner annular ring.

[0008] Preferably, the outer diameter of the mounting disc is larger than the inner diameter of the cutting disc.

[0009] Preferably, the mounting plate has a second mounting hole in the middle annular array, and the first mounting hole and the second mounting hole are staggered. The mounting plate is mounted on the spindle of an external machine through the second mounting hole.

[0010] Preferably, the outer ring of the mounting piece is fixedly provided with protrusions in an annular array, the protrusions are adapted to the mounting groove, and the outer ring diameter of the mounting piece is the same as the inner ring diameter of the cutting piece.

[0011] This utility model provides a saw blade structure for tubular cutting. It has the following advantages:

[0012] (1) The grinding part of this utility model is connected to the mounting plate by connecting bolts. When the grinding part needs to be replaced, simply unscrew the connecting bolts to easily remove the worn grinding part from the mounting plate and then install the new grinding part. This greatly simplifies the replacement process, reduces the difficulty of replacement, and saves replacement costs.

[0013] (2) This utility model achieves the corresponding connection between the mounting plate and the cutting plate by matching the protrusion with the mounting groove. The cutting plate is clamped and fixed by the grinding parts on both sides of the mounting plate, which promotes the stable connection between the mounting plate and the cutting plate. When the cutting plate is excessively worn, it is easy to replace the cutting plate separately.

[0014] This solves the problem that when the grinding disc needs to be replaced, the locking block is difficult to remove from the positioning slot, making it difficult to replace the grinding disc separately and increasing the replacement cost of the saw blade. Attached Figure Description

[0015] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0016] Figure 2 This is an exploded view of the overall structure of this utility model;

[0017] Figure 3 This utility model Figure 1 Structural diagram of the grinding part;

[0018] Figure 4 This utility model Figure 2 A diagram illustrating the structure of the cutting disc;

[0019] Figure 5 This utility model Figure 2 A structural diagram of the mounting plate.

[0020] In the diagram, 1 is the cutting disc; 11 is the mounting groove; 12 is the saw tooth; 2 is the grinding part; 21 is the mounting plate; 22 is the grinding plate; 23 is the connecting arm; 24 is the connecting hole; 3 is the mounting plate; 31 is the protrusion; 32 is the mounting hole one; 33 is the mounting hole two; and 4 is the connecting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] Please see Figures 1-5 A saw blade structure for tubular cutting includes a cutting blade 1, which is annular. An mounting plate 3 is provided on the inner side of the cutting blade 1. The mounting plate 3 has a central annular array of mounting holes 32. Grinding components 2 are installed on both sides of the mounting plate 3. The grinding components 2 include a mounting disc 21, which is annular. Connecting arms 23 are fixedly arranged at equal intervals on the inner side of the mounting disc 21. Connecting holes 24 are provided on the connecting arms 23. The connecting holes 24 correspond to the mounting holes 32. The connecting holes 24 on the mounting disc 21 and the mounting holes 32 on the mounting plate 3 are connected by connecting bolts 4. A grinding disc 22 is provided on the outer surface of the mounting disc 21.

[0024] Specifically, when cutting tubular materials, the cutting blade 1 cuts the tubular material, and at the same time, the grinding components 2 installed on both sides of the mounting plate 3 inside the cutting blade 1 also rotate with the rotation of the saw blade. The grinding disc 22 in the grinding component 2 contacts the surface of the tubular material being cut. Since the grinding disc 22 has a rotational linear velocity with the rotation of the saw blade as a whole, it generates relative motion with the surface of the tubular material, thereby using the friction of the grinding disc 22 to grind the cut surface of the tubular material, making the surface of the cut tubular material smoother and flatter.

[0025] When it is necessary to replace the grinding part 2, simply unscrew the connecting bolt 4 between the connecting hole 24 on the connecting mounting plate 21 and the mounting hole 32 on the mounting piece 3. Since the connecting arm 23 is fixed equidistantly on the inner side of the mounting plate 21, and the connecting hole 24 is opened on the connecting arm 23, the mounting plate 21 will separate from the mounting piece 3 after the connecting bolt 4 is unscrewed. At this time, the entire grinding part 2 can be removed from the mounting piece 3, and then a new grinding part 2 can be replaced. Then, the mounting plate 21 of the new grinding part 2 can be connected and fixed to the mounting piece 3 by the connecting bolt 4.

[0026] The method of connecting the mounting plate 21 and the mounting plate 3 by connecting bolt 4 makes the disassembly and installation of the grinding part 2 simple and convenient, greatly improving the replacement efficiency and reducing equipment maintenance time and labor costs. The mounting plate 21 is connected by connecting hole 24 on the connecting arm 23 and mounting hole 32 on the mounting plate 3, and is connected by connecting bolt 4. This ensures that while the mounting plate 3 drives the grinding part 2 to rotate through the connecting bolt 4, the relative position of the grinding part 2 and the cutting blade 1 is stable after installation. When the saw blade rotates at high speed and performs cutting and grinding operations, the grinding part 2 will not loosen or shake, thus ensuring the consistency and stability of the grinding effect.

[0027] Example 2:

[0028] To replace cutting disc 1, please refer to [link / reference]. Figures 1-5 Based on embodiment 1, the cutting blade 1 is annular, with serrations 12 evenly spaced on the outer annular ring of the cutting blade 1 and mounting grooves 11 evenly spaced on the inner annular ring of the cutting blade 1.

[0029] The outer diameter of the mounting plate 21 is larger than the inner diameter of the cutting disc 1;

[0030] The mounting plate 3 has a second mounting hole 33 in the middle annular array. The first mounting hole 32 and the second mounting hole 33 are staggered. The mounting plate 3 is mounted on the spindle of an external machine through the second mounting hole 33.

[0031] The outer ring of the mounting plate 3 is fixedly provided with protrusions 31 in an annular array. The protrusions 31 correspond to and are adapted to the mounting groove 11. The outer ring diameter of the mounting plate 3 is the same as the inner ring diameter of the cutting plate 1.

[0032] Specifically, when the mounting disc 21 is installed on both sides of the mounting plate 3, because its outer diameter is larger than the inner diameter of the cutting blade 1, the mounting disc 21 will form a certain coverage and obstruction in the axial direction of the cutting blade 1. This can limit the axial movement of the cutting blade 1 and prevent it from slipping off the mounting plate 3 or moving axially. During the saw blade's operation, cutting force and vibration may exert axial force on the cutting blade 1, and the presence of the mounting disc 21 acts like two "baffles," stably clamping the cutting blade 1 in the middle and ensuring its stability in the axial position.

[0033] When it is necessary to replace the cutting disc 1, first remove the grinding piece 2 from one side of the mounting plate 3. Since the outer ring of the mounting plate 3 is fixedly provided with a ring array of protrusions 31, and the protrusions 31 correspond and fit with the mounting groove 11 of the inner ring of the cutting disc 1, and the outer ring diameter of the mounting plate 3 is the same as the inner ring diameter of the cutting disc 1, when replacing the cutting disc 1, simply slide the cutting disc 1 axially off the protrusions 31 on the mounting plate 3, separating the protrusions 31 from the mounting groove 11, and then remove the old cutting disc 1. Then align the mounting groove 11 of the new cutting disc 1 with the protrusions 31 on the mounting plate 3, push it axially, so that the protrusions 31 are engaged in the mounting groove 11, and reinstall the grinding piece 2, thus completing the replacement of the cutting disc 1.

[0034] By enabling convenient replacement of the cutting disc 1, a new cutting disc 1 can be promptly replaced when it becomes worn or damaged, thereby ensuring the accuracy and quality of cutting and avoiding problems such as uneven cutting surfaces and dimensional deviations caused by wear of the cutting disc 1.

[0035] Working principle: Align the mounting groove 11 of the cutting disc 1 with the protrusion 31 on the mounting disc 3, and push it in axially so that the protrusion 31 is engaged in the mounting groove 11, thus completing the installation of the cutting disc 1. Align the connecting hole 24 on the mounting plate 21 of the grinding part 2 with the mounting hole 32 on the mounting disc 3, and connect them with the connecting bolt 4. Install the grinding part 2 on both sides of the mounting disc 3, and install the mounting disc 3 on the external machine spindle through the mounting hole 33 to ensure a firm installation.

[0036] Start the external machine to drive the saw blade to rotate at high speed. Place the tubular material in a suitable position. The saw teeth 12 of the cutting blade 1 cut the tubular material. At the same time, the grinding parts 2 installed on both sides of the mounting plate 3 inside the cutting blade 1 also rotate with the saw blade. The grinding disc 22 contacts the surface of the tubular material being cut. It uses its rotational linear speed to generate relative motion with the surface of the tubular material to grind the cut surface, making the surface of the cut tubular material smoother and flatter.

[0037] When the grinding disc 22 in the grinding part 2 is worn and needs to be replaced, unscrew the connecting bolt 4 between the connecting hole 24 on the connecting mounting disc 21 and the mounting hole 32 on the mounting plate 3. The mounting disc 21 and the mounting plate 3 will separate. Remove the entire grinding part 2 from the mounting plate 3. Align the connecting hole 24 on the mounting disc 21 of the new grinding part 2 with the mounting hole 32 on the mounting plate 3, and then connect and fix them with the connecting bolt 4 to complete the replacement.

[0038] When the cutting disc 1 is worn or damaged and needs to be replaced, first remove the grinding part 2 on one side of the mounting plate 3, slide the old cutting disc 1 axially off the protrusion 31 on the mounting plate 3 to separate the protrusion 31 from the mounting groove 11, remove the old cutting disc 1, align the mounting groove 11 of the new cutting disc 1 with the protrusion 31 on the mounting plate 3, push it axially to make the protrusion 31 snap into the mounting groove 11, reinstall the grinding part 2 that was previously removed, and the replacement of the cutting disc 1 is completed. After that, the cutting and grinding operation can continue.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A saw blade structure for cutting tubular shapes, comprising a cutting blade (1), characterized in that: The cutting blade (1) is annular, and an mounting plate (3) is provided on the inner side of the cutting blade (1). The mounting plate (3) has a mounting hole (32) in the middle annular array. Grinding parts (2) are installed on both sides of the mounting plate (3). The grinding part (2) includes a mounting disc (21). The mounting disc (21) is annular, and a connecting arm (23) is fixedly provided at equal intervals on the inner side of the mounting disc (21). A connecting hole (24) is provided on the connecting arm (23). The connecting hole (24) corresponds to the mounting hole (32). The connecting hole (24) on the mounting disc (21) and the mounting hole (32) on the mounting plate (3) are connected by a connecting bolt (4). A grinding disc (22) is provided on the outer surface of the mounting disc (21).

2. The saw blade structure for tubular cutting according to claim 1, characterized in that: The cutting blade (1) is annular, with serrations (12) evenly spaced on the outer annular ring of the cutting blade (1) and mounting grooves (11) evenly spaced on the inner annular ring of the cutting blade (1).

3. The saw blade structure for tubular cutting according to claim 2, characterized in that: The outer diameter of the mounting plate (21) is larger than the inner diameter of the cutting disc (1).

4. The saw blade structure for tubular cutting according to claim 3, characterized in that: The mounting plate (3) has a second mounting hole (33) in the middle annular array. The first mounting hole (32) and the second mounting hole (33) are staggered. The mounting plate (3) is mounted on the spindle of an external machine through the second mounting hole (33).

5. The saw blade structure for tubular cutting according to claim 4, characterized in that: The mounting plate (3) has a ring array of protrusions (31) fixedly arranged on its outer ring. The protrusions (31) are correspondingly adapted to the mounting groove (11). The outer ring diameter of the mounting plate (3) is the same as the inner ring diameter of the cutting plate (1).

Images