Portable cutting machine capable of conveniently switching saw blades

Abstract

The utility model discloses a portable cutting machine convenient to switch saw blades, and particularly relates to the technical field of cutting machines, the portable cutting machine comprises a cutting mechanism, a protection assembly and a connecting assembly, the protection assembly is installed on the side face of the cutting mechanism, and the connecting assembly is installed on the side, away from the protection assembly, of the cutting mechanism. And the cutting mechanism comprises a cutting blade, a fixing bolt, a limiting ring, a rotating shaft and a motor, the fixing bolt is placed on the side face of the cutting blade, the limiting ring is placed on the side, away from the fixing bolt, of the cutting blade, the rotating shaft is installed on the inner diameter surface of the limiting ring, and the motor is installed on the side, away from the limiting ring, of the rotating shaft. According to the portable cutting machine with the saw blades convenient to switch, the fixing assembly is installed in the protection assembly, so that the cutting blades of the cutting machine are more convenient to disassemble and replace.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine technology, and more specifically, to a portable cutting machine that facilitates the switching of saw blades. Background Technology

[0002] A cutting machine is a processing device used to cut different objects. It has one or more cutting blades working simultaneously to cut the same object. During operation, an electric motor drives a rotating shaft, which in turn drives the cutting blades to rotate, cutting the object. The cutting blades typically rotate at 6,000-10,000 revolutions per minute, which is extremely fast and therefore quite dangerous, requiring the addition of safety safety components. Cutting machines are mainly used in parts processing, wood cutting, rock cutting, and other fields.

[0003] A search revealed existing publication number CN118386285A, which discloses a cutting machine comprising a fixed base, a cutting mechanism, a rotating assembly, a first clamping block, and a second clamping block. The first and second clamping blocks are correspondingly disposed on the fixed base. The cutting mechanism is used to cut the object to be cut and is movably disposed on the fixed base between a cutting position and a disengaged position. The cutting mechanism in the cutting position cooperates with each of the first and second clamping blocks to cut the object, while the cutting mechanism in the disengaged position moves away from both the first and second clamping blocks. The rotating assembly is rotatably disposed on the fixed base and is connected to both the cutting mechanism and the first clamping block. When the cutting mechanism moves from the cutting position to the disengaged position, the first clamping block moves away from the second clamping block; when the cutting mechanism moves from the disengaged position to the cutting position, the cutting mechanism, through the rotating assembly, drives the first clamping block closer to the second clamping block. This invention's cutting machine can fix the object to be cut during cutting, thereby reducing safety hazards during use. The inventors discovered the following problems with the existing technology during the development of this invention:

[0004] When replacing the cutting disc in an existing cutting machine, the cutting disc rotates as the fixing bolts are tightened, which increases the difficulty of replacing the cutting disc. In addition, when replacing the cutting disc in a traditional cutting machine, the spare cutting disc needs to be carried by the machine itself. If the spare cutting disc is forgotten, the work efficiency will be greatly reduced.

[0005] Therefore, a portable cutting machine that facilitates easy blade switching is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a portable cutting machine that facilitates the switching of saw blades, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a portable cutting machine that facilitates saw blade switching, comprising a cutting mechanism, a protective component, and a connecting component. The protective component is installed on the side of the cutting mechanism, and the connecting component is installed on the side of the cutting mechanism away from the protective component. The cutting mechanism includes a cutting blade, a fixing bolt, a limiting ring, a rotating shaft, and a motor. The fixing bolt is placed on the side of the cutting blade, and the limiting ring is placed on the side of the cutting blade away from the fixing bolt. The rotating shaft is installed on the inner diameter surface of the limiting ring, and the motor is installed on the side of the rotating shaft away from the limiting ring.

[0008] Preferably, the protective component includes a limiting protective shell, a sealing shell, a fixing component, and a secondary handle. The fixing component is installed on the side wall of the limiting protective shell, and the sealing shell is placed on the side of the fixing component away from the limiting protective shell. The secondary handle is installed on the side of the sealing shell away from the fixing component.

[0009] Preferably, the connection assembly includes a main handle, a battery storage slot, a battery, and a connection plate assembly. The battery storage slot is installed on the side of the main handle, and the battery is installed on the inner wall of the battery storage slot. The connection plate assembly is installed on the side of the battery storage slot away from the main handle.

[0010] Preferably, the fixing assembly includes a fixing shaft, a bearing, a fixing arm, a fixing column, and a mounting box. The bearing is mounted on the outer diameter surface of the fixing shaft, the fixing arm is mounted on the outer diameter surface of the bearing, the fixing column is mounted on the side of the fixing arm away from the bearing, and the mounting box is placed on the side of the bearing away from the fixing arm.

[0011] Preferably, the connecting plate assembly includes a connecting plate, a motor housing, and a slice storage box, with the motor housing mounted on the side of the connecting plate and the slice storage box mounted on the side of the motor housing away from the connecting plate.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. Compared with existing technologies, this portable cutting machine with convenient blade switching makes blade replacement more convenient by installing a fixing component in the protective assembly. The fixing component is fixed to the limiting protective shell of the protective assembly via a fixing shaft, and the fixing shaft and fixing arm are connected by a bearing, allowing the fixing arm to rotate. A fixing post is fixedly installed on the side of the fixing arm away from the bearing. The fixing arm can be slightly offset to the side by external force, allowing the fixing post to be inserted into the small hole in the cutting blade. This allows the cutting blade to be fixed during replacement, reducing the difficulty of blade replacement.

[0014] 2. Compared with the existing technology, this portable cutting machine with convenient saw blade switching has a blade storage box installed behind the motor box, so that when workers are working outside, they will not be delayed because the cutting blade is broken or they forget to bring a spare cutting blade. The blade storage box can hold spare cutting blades for emergencies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall side structure of a portable cutting machine that allows for easy switching of saw blades, according to the present invention.

[0016] Figure 2 This is a schematic diagram of the sealed shell structure of a portable cutting machine that facilitates easy blade switching, according to the present invention.

[0017] Figure 3 This is a schematic diagram of the connection component structure of a portable cutting machine that facilitates easy switching of saw blades, according to the present invention.

[0018] Figure 4 This is a schematic diagram of the connecting disc assembly of a portable cutting machine that facilitates saw blade switching, according to the present invention.

[0019] Figure 5 This is a schematic diagram of the cutting mechanism of a portable cutting machine with convenient saw blade switching according to the present invention.

[0020] The attached figures are labeled as follows: 1. Cutting mechanism; 2. Protective component; 3. Connecting component; 4. Cutting blade; 5. Fixing bolt; 6. Limiting ring; 7. Rotating shaft; 8. Motor; 9. Limiting protective shell; 10. Sealing shell; 11. Fixing component; 12. Main handle; 13. Battery storage slot; 14. Battery; 15. Connecting plate assembly; 16. Secondary handle; 17. Fixing shaft; 18. Bearing; 19. Fixing arm; 20. Fixing column; 21. Placement box; 22. Connecting plate; 23. Motor box; 24. Slice storage box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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] As attached Figures 1 to 5A portable cutting machine with convenient saw blade switching is shown, comprising a cutting mechanism 1, a protective component 2, and a connecting component 3. The protective component 2 is mounted on the side of the cutting mechanism 1, and the connecting component 3 is mounted on the side of the cutting mechanism 1 away from the protective component 2. The cutting mechanism 1 includes a cutting blade 4, a fixing bolt 5, a limiting ring 6, a rotating shaft 7, and a motor 8. The fixing bolt 5 is placed on the side of the cutting blade 4, and the limiting ring 6 is placed on the side of the cutting blade 4 away from the fixing bolt 5. The rotating shaft 7 is mounted on the inner diameter surface of the limiting ring 6, and the motor 8 is mounted on the side of the rotating shaft 7 away from the limiting ring 6.

[0024] The cutting mechanism 1 can cut steel structures using a high-speed rotating cutting blade 4. The protective component 2 blocks most of the sparks generated during the cutting process and also protects against fragments from the cutting blade 4 if it gets stuck. The protective component 2 also protects the worker from these fragments. The protective component 2 is installed on the side of the cutting mechanism 1. The cutting mechanism 1 and the connecting component 3 are connected by a rotating shaft 7. The connecting component 3 connects the cutting mechanism 1 and the protective component 2 and provides power to the cutting mechanism 1. The connecting component 3 is bolted to the side of the cutting mechanism 1 away from the protective component 2. The cutting mechanism 1 includes a cutting blade 4, fixing bolts 5, a limiting ring 6, a rotating shaft 7, and a motor 8. The cutting blade 4 can cut steel structures by high-speed rotation. The fixing bolts 5 firmly fix the cutting blade 4 to the rotating shaft 7, preventing it from shifting position during high-speed rotation. The limiting ring 6 protects the cutting blade 4 from the fixing bolts 7. A limiting device is installed on one side of the rotating shaft 7 to prevent the cutting blade 4 from shifting during the fixing process of the fixing bolt 5. The motor 8 provides power to the cutting mechanism 1 and drives the rotating shaft 7 to rotate, causing the rotating shaft 7 to drive the cutting blade 4 to rotate at high speed, thereby achieving the cutting effect. The fixing bolt 5 is placed on the side of the cutting blade 4, and a limiting ring 6 is placed on the side of the cutting blade 4 away from the fixing bolt 5. The rotating shaft 7 is installed on the inner diameter surface of the limiting ring 6 by bolts. The motor 8 is installed on the side of the rotating shaft 7 away from the limiting ring 6 by bolts. The rotating shaft 7 is installed with bolts. When the limit ring 6 is worn or damaged, the worker can replace the limit ring 6 with a screwdriver. Before the worker starts working, the worker needs to connect the sealing shell 10 and the limit protection shell 9 on the protective component 2, and make sure that the fixed arm 19 in the protective component 2 is placed in the mounting box 21. Then, hold the main handle 12 and turn on the switch. When cutting the steel structure, the worker needs to hold the main handle 12 with one hand and the auxiliary handle 16 with the other hand to make the cutting machine more stable and safe when cutting.

[0025] Example 2

[0026] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details:

[0027] In a preferred embodiment, the protective assembly 2 includes a limiting protective shell 9, a sealing shell 10, a fixing assembly 11, and a secondary handle 16. The limiting protective shell 9 and the sealing shell 10 are assembled to form a semi-enclosed space, with only a small portion of the cutting blade 4 exposed below for cutting steel structures. The semi-enclosed space also provides protection for workers. The fixing assembly 11 can fix the cutting blade 4 when it needs to be replaced, making it easier to replace the cutting blade 4. The fixing assembly 11 is fixed to the limiting protective shell 9 of the protective assembly 2 via a fixing shaft 17. The fixing shaft 17 and the fixing arm 19 are connected by a bearing, allowing the fixing arm 19 to rotate. A fixing post 20 is fixedly installed on the side of the fixing arm 19 away from the bearing. The fixing arm 19 can be slightly offset to the side by external force, allowing the fixing post 20 to be inserted into the small hole in the cutting blade 4. The cutting disc 4 can be fixed during replacement, reducing the difficulty of replacing the cutting disc 4 and making the disassembly of the cutting disc 4 more convenient. The auxiliary handle 16 assists the worker in picking up the cutting machine, making the cutting machine safer to use. The side wall of the limit protection shell 9 is equipped with a fixing component 11 by movable bolts. A sealing shell 10 is placed on the side of the fixing component 11 away from the limit protection shell 9. The auxiliary handle 16 is installed on the side of the sealing shell 10 away from the fixing component 11 by bolts. When the worker is using the cutting machine, he needs to use bolts to fix the sealing shell 10 and the limit protection shell 9.

[0028] In a preferred embodiment, the connecting assembly 3 includes a main handle 12, a battery storage slot 13, a battery 14, and a connecting plate assembly 15. The main handle 12 provides hand grip space for workers during construction. The battery storage slot 13 provides space for storing the battery 14, and the battery 14 provides power for starting the motor 8. The connecting plate assembly 15 connects the protection assembly 2 and the cutting mechanism 1. The connecting plate assembly 15 and the cutting assembly 1 are connected by bearings. The protection assembly 2 is fixed to the connecting plate assembly 15 with bolts to ensure long-term stability. The battery storage slot 13 is welded to the side of the main handle 12, and the battery 14 is installed on the inner wall of the battery storage slot 13. The connecting plate assembly 15 is welded to the side of the battery storage slot 13 away from the main handle 12.

[0029] In a preferred embodiment, the fixing assembly 11 includes a fixing shaft 17, a bearing 18, a fixing arm 19, a fixing post 20, and a mounting box 21. The fixing shaft 17 can fix the fixing assembly 11 to the side wall of the limiting protective shell 9. The fixing shaft 17 is installed on the side wall of the limiting protective shell 9 by welding. The bearing 18 connects the fixing shaft 17 and the fixing arm 19 and allows the fixing arm 19 to rotate freely. The fixing post 20 can fix the cutting blade 4 when it needs to be replaced. The mounting box 21 can provide space for placing and fixing the fixing assembly 11 when it is not in use. The bearing 18 is installed on the outer diameter surface of the fixing shaft 17. The fixing arm 19 is installed on the outer diameter surface of the bearing 18. The fixing post 20 is installed on the side of the fixing arm 19 away from the bearing 18 by bolts. The mounting box 21 is placed on the side of the bearing 18 away from the fixing arm 19. The mounting box 21 is connected to the protective assembly 2 by a movable bolt.

[0030] In a preferred embodiment, the connecting plate assembly 15 includes a connecting plate 22, a motor housing 23, and a slice storage box 24. The connecting plate 22 and the rotating shaft 7 are connected by a bearing 18. A limit protective shell 9 is bolted to the side of the connecting plate 22 away from the motor housing 23. The motor housing 23 provides space for the placement of the motor 8. The slice storage box 24 can hold spare cutting slices 4. The motor housing 23 is welded to the side of the connecting plate 22, and the slice storage box 24 is welded to the side of the motor housing 23 away from the connecting plate 22.

[0031] The working process of this utility model is as follows: The cutting mechanism 1 can cut steel structure objects, and the object is cut by the high-speed rotating cutting blade 4. The protective component 2 can block most of the sparks generated by the cutting mechanism 1 during the cutting process. When the cutting blade 4 is stuck and breaks, the protective component 2 can also block the fragments of the cutting blade 4. The safety of the worker can be protected by the ground and the protective component 2. The protective component 2 includes a limiting protective shell 9, a sealing shell 10, a fixing component 11 and a secondary handle 16. The limiting protective shell 9 and the sealing shell 10 are assembled to form a semi-enclosed space, with only a small part of the cutting blade 4 exposed below, which is used to cut the steel structure. The semi-enclosed space formed can protect the worker.

[0032] The fixing component 11 can fix one side of the cutting disc 4 when it needs to be replaced, making the disassembly of the cutting disc 4 more convenient. The fixing component 11 includes a fixing shaft 17, a bearing 18, a fixing arm 19, a fixing post 20, and a mounting box 21. The fixing shaft 17 can fix the fixing component 11 to the side wall of the limiting protective shell 9. The fixing shaft 17 is welded to the side wall of the limiting protective shell 9. The bearing 18 connects the fixing shaft 17 and the fixing arm 19, allowing the fixing arm 19 to rotate freely. The fixing post 20 can fix the cutting disc 4 when it needs to be replaced. The mounting box 21 can provide storage for the fixing component 11 when it is not in use. The space for placement and fixing is provided. A bearing 18 is installed on the outer diameter surface of the fixed shaft 17. A fixed arm 19 is installed on the outer diameter surface of the bearing 18. A fixed column 20 is installed on the side of the fixed arm 19 away from the bearing 18 by bolts. A mounting box 21 is placed on the side of the bearing 18 away from the fixed arm 19. The mounting box 21 is connected to the protective component 2 by a movable bolt. The auxiliary handle 16 assists the worker in picking up the cutting machine, making the cutting machine safer to use. A fixing component 11 is installed on the side wall of the limit protective shell 9 by movable bolts. A sealing shell 10 is placed on the side of the fixing component 11 away from the limit protective shell 9. The auxiliary handle 16 is installed on the side of the sealing shell 10 away from the fixing component 11 by bolts.

[0033] When workers use the cutting machine, they need to use bolts to fix the sealing shell 10 and the limiting protective shell 9. A protective component 2 is installed on the side of the cutting mechanism 1. The cutting mechanism 1 and the connecting component 3 are connected via a rotating shaft 7. The connecting component 3 connects the cutting mechanism 1 and the protective component 2 and provides power to the cutting mechanism 1. The connecting component 3 includes a main handle 12, a battery storage slot 13, a battery 14, and a connecting plate assembly 15. The main handle 12 provides hand grip space for workers during operation. The battery storage slot 13 provides space for storing the battery 14, which provides power for starting the motor 8. The connecting plate assembly 15 connects the protective component 2 and the cutting mechanism 1. The connecting plate assembly 15 includes a connecting plate 22, a motor housing 23, and a slice storage box 24. The connecting plate 22 and the rotating shaft 7 are connected by a bearing 18. A limiting protective shell 9 is installed on the side of the connecting plate 22 away from the motor housing 23 via bolts. The motor housing 23 provides space for placing the motor 8. Storage box 24 can hold spare cutting discs 4. Motor box 23 is welded to the side of connecting plate 22. Slice storage box 24 is welded to the side of motor box 23 away from connecting plate 22. Battery storage slot 13 is welded to the side of main handle 12. Battery 14 is installed on the inner wall of battery storage slot 13. Connecting plate assembly 15 is welded to the side of battery storage slot 13 away from main handle 12. Connecting assembly 3 is bolted to the side of cutting mechanism 1 away from protection assembly 2. Cutting mechanism 1 includes cutting disc 4, fixing bolt 5, limiting ring 6, rotating shaft 7 and motor 8. Cutting disc 4 can cut steel structure objects by high-speed rotation. Fixing bolt 5 can firmly fix cutting disc 4 on rotating shaft 7 and prevent cutting disc 4 from shifting position when rotating at high speed. Limiting ring 6 can limit the side of cutting disc 4 away from fixed rotating shaft 7 and prevent cutting disc 4 from shifting during the process of fixing cutting disc 4 by fixing bolt 5.

[0034] The electric motor 8 provides power to the cutting mechanism 1 and drives the rotating shaft 7 to rotate, causing the rotating shaft 7 to drive the cutting blade 4 to rotate at high speed, thereby achieving the cutting effect. The side of the cutting blade 4 is equipped with a fixing bolt 5, and a limit ring 6 is placed on the side of the cutting blade 4 away from the fixing bolt 5. The rotating shaft 7 is welded to the inner diameter surface of the limit ring 6, and the electric motor 8 is welded to the side of the rotating shaft 7 away from the limit ring 6. Before the worker starts working, the worker needs to connect the sealing shell 10 and the limit protection shell 9 on the protective component 2, and make sure that the fixing arm 19 in the protective component 2 is placed in the mounting box 21. Then, the worker holds the main handle 12 and turns on the switch. When cutting the steel structure, the worker needs to hold the main handle 12 with one hand and the auxiliary handle 16 with the other hand to make the cutting machine more stable and safe during cutting. The above is the working principle of a portable cutting machine that is easy to switch saw blades.

Claims

1. A portable cutting machine with convenient saw blade switching, comprising a cutting mechanism (1), a protective component (2), and a connecting component (3), characterized in that: The cutting mechanism (1) has a protective component (2) installed on its side, and a connecting component (3) is installed on the side of the cutting mechanism (1) away from the protective component (2). The cutting mechanism (1) includes a cutting blade (4), a fixing bolt (5), a limiting ring (6), a rotating shaft (7), and a motor (8). The cutting blade (4) has a fixing bolt (5) placed on its side, and a limiting ring (6) is placed on the side of the cutting blade (4) away from the fixing bolt (5). The rotating shaft (7) is installed on the inner diameter surface of the limiting ring (6), and a motor (8) is installed on the side of the rotating shaft (7) away from the limiting ring (6).

2. The portable cutting machine with convenient saw blade switching according to claim 1, characterized in that: The protective component (2) includes a limiting protective shell (9), a sealing shell (10), a fixing component (11), and a secondary handle (16). The fixing component (11) is installed on the side wall of the limiting protective shell (9), and the sealing shell (10) is placed on the side of the fixing component (11) away from the limiting protective shell (9). The secondary handle (16) is installed on the side of the sealing shell (10) away from the fixing component (11).

3. A portable cutting machine with convenient saw blade switching according to claim 1, characterized in that: The connecting assembly (3) includes a main handle (12), a battery storage slot (13), a battery (14), and a connecting plate assembly (15). The battery storage slot (13) is installed on the side of the main handle (12), and the battery (14) is installed on the inner wall of the battery storage slot (13). The connecting plate assembly (15) is installed on the side of the battery storage slot (13) away from the main handle (12).

4. A portable cutting machine for easy blade switching according to claim 2, characterized in that: The fixing assembly (11) includes a fixing shaft (17), a bearing (18), a fixing arm (19), a fixing post (20), and a mounting box (21). The bearing (18) is mounted on the outer diameter surface of the fixing shaft (17), the fixing arm (19) is mounted on the outer diameter surface of the bearing (18), the fixing post (20) is mounted on the side of the fixing arm (19) away from the bearing (18), and the mounting box (21) is placed on the side of the bearing (18) away from the fixing arm (19).

5. A portable cutting machine for easy blade switching according to claim 3, characterized in that: The connecting disk assembly (15) includes a connecting disk (22), a motor box (23) and a slice storage box (24), and the motor box (23) is installed on the side of the connecting disk (22), and the slice storage box (24) is installed on the side of the motor box (23) away from the connecting disk (22).

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