Circular saw device with tool bit convenient to replace

Abstract

The utility model relates to the technical field of wood processing, and discloses a circular saw device with a tool bit convenient to replace, which comprises a circular saw body, a blade, a mounting cylinder, a positioning assembly and a fixing assembly, the circular saw body is provided with a through opening, the blade is arranged in the through opening, one end of the mounting cylinder is connected with a transmission part of the circular saw body, and the other end of the mounting cylinder is connected with the positioning assembly. And the other end is detachably connected with the blade through the positioning assembly and the fixing assembly. The utility model has the following advantages and effects: when the blade is replaced, only the mounting cylinder and the butt joint cylinder need to be in butt joint through the positioning component, and then the fixing piece penetrates into the butt joint cylinder, so that the blade can be stably mounted in the circumferential direction and the axial direction when being mounted, and only the fixing piece needs to be dismounted when the blade needs to be replaced, and the replacement is convenient. The installation steps of the blade are optimized, on the premise that stable installation of the blade is guaranteed, the blade can be assembled and disassembled relatively conveniently, operation is convenient, and the standby time of the circular sawing machine is shortened.

Description

Technical Field

[0001] This utility model relates to the field of wood processing technology, and in particular to a circular saw device that facilitates the replacement of the saw head. Background Technology

[0002] Circular saws achieve their cutting function by rotating blades. They are simple and efficient to use. During wood processing, the blades are driven by an electric motor to rotate at high speed, thereby cutting the wood placed on the saw bed.

[0003] Currently, after a circular saw has been used for a long time, the blades need to be replaced due to wear. The replacement process usually involves the following steps: first, the blade bearing nut needs to be fixed, and the threaded pin needs to be pushed out with a chisel and hammer. Then, the retaining spring needs to be removed, and the circular saw blade can be taken off. These steps require a certain level of skill and strength, and can be time-consuming and laborious for less experienced operators.

[0004] Based on the above, the inventor believes that the current operation of changing the cutter head of the circular saw is relatively complicated, and the waiting time during the replacement is long, which affects the processing progress. Utility Model Content

[0005] The purpose of this invention is to provide a circular saw device that facilitates the replacement of worn-out blades, thereby improving replacement efficiency and ensuring progress.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a circular saw device for easy replacement of the blade head, comprising a circular saw body, blades, mounting cylinder, positioning component and fixing component;

[0007] The circular saw body has an opening, the blade is placed in the opening, one end of the mounting cylinder is connected to the transmission component of the circular saw body, and the other end is detachably connected to the blade through a positioning component and a fixing component.

[0008] A further feature of this invention is that the blade is coaxially fixed with a docking cylinder, and the blade is connected to the positioning component and the fixing component through the docking cylinder.

[0009] By adopting the above technical solutions, the blades can be quickly loaded and unloaded, optimizing the operation steps and improving efficiency.

[0010] A further feature of this invention is that the mounting cylinder is inserted into one end of the docking cylinder, and the fixing component includes a fixing member and a locking member. After the fixing member is inserted into the other end of the docking cylinder, it is connected to the mounting cylinder and the locking member. The mounting cylinder is fixed to the docking cylinder by the locking member.

[0011] By adopting the above technical solution, the fixing and locking components can cooperate to achieve quick loading and unloading of the blade.

[0012] A further feature of this invention is that the positioning assembly includes a support fixedly connected to the outside of the mounting cylinder, a positioning rod with one end fixed to the support, and a positioning block inserted into the other end of the positioning rod. The positioning block is fixedly connected to the outside of the docking cylinder.

[0013] By adopting the above technical solution, the positioning component has two or more locations on the mounting cylinder and the docking cylinder, and the mounting cylinder and the docking cylinder are coaxially connected.

[0014] A further feature of this invention is that the fixing component includes a fixing cylinder whose outer wall is inserted into the connecting cylinder, a fixing bolt installed inside the fixing cylinder, and a conical block fixed to one end of the fixing cylinder near the mounting cylinder.

[0015] By adopting the above technical solution, the fixing cylinder is used to keep the mounting cylinder fixed, and the conical block is used to cooperate with the locking component.

[0016] A further feature of this invention is that a fixed seat is fixed inside the mounting cylinder, and a fixing bolt is threadedly connected to the fixed cylinder, the conical block, and the fixed seat.

[0017] By adopting the above technical solution, after the fixing cylinder is inserted into the docking cylinder, the fixing bolt is rotated gradually.

[0018] A further feature of this invention is that the outer side of the conical block is in sliding engagement with the locking member.

[0019] By adopting the above technical solution, the docking cylinder can be initially fixed in the circumferential direction before being fixed in both the circumferential and axial directions.

[0020] A further feature of this invention is that the locking component includes a bracket fixedly connected to the inner wall of the mounting cylinder, a locking rod slidably mounted on the bracket, a spring mounted on the outer side of the locking rod, and a mounting plate coaxially fixed to the outer wall of the locking rod. The inner end of the locking rod slides in contact with the surface of the conical block.

[0021] By adopting the above technical solution, the two ends of the spring are fixed to the mounting cylinder and the mounting plate respectively, so as to provide the locking rod with the telescopic sliding reset force through the spring.

[0022] A further feature of this invention is that the mounting cylinder and the docking cylinder are respectively provided with a through hole and a locking hole.

[0023] A further feature of this invention is that the outer end of the locking rod is sequentially inserted into the through hole and the locking hole.

[0024] By adopting the above technical solution, when the locking rod is in normal condition, its outer end is located inside the opening. When the fixing cylinder is fixed to the fixing seat, it will drive the conical block to move into the mounting cylinder.

[0025] The beneficial effects of this utility model are:

[0026] When replacing the blade, simply align the mounting cylinder and the docking cylinder using the positioning assembly, and then insert the fixing component into the docking cylinder. This ensures that the fixing component is connected to the mounting cylinder and the locking component, allowing the locking component to hold the docking cylinder and the mounting cylinder in place through the through hole and the locking hole. This ensures that the blade is securely installed circumferentially and axially, and when replacement is needed, simply remove the fixing component. This optimizes the blade installation process, making the blade loading and unloading operations relatively convenient and easy to operate while ensuring a secure installation, thereby reducing the downtime of the circular saw. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of a circular saw device for easy blade replacement provided in an embodiment of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the docking cylinder in an embodiment of this utility model;

[0030] Figure 3 This is a schematic diagram of the structure of the fixing component in an embodiment of this utility model;

[0031] Figure 4 This is a schematic diagram of the locking component in an embodiment of the present invention.

[0032] In the diagram, 1. Circular saw body; 2. Blade; 3. Mounting cylinder; 4. Positioning assembly; 5. Fixing component; 6. Locking component; 11. Through port; 21. Connecting cylinder; 22. Locking hole; 31. Fixing base; 32. Through hole; 41. Support; 42. Positioning rod; 43. Positioning block; 51. Fixing cylinder; 52. Fixing bolt; 53. Conical block; 61. Bracket; 62. Locking rod; 63. Spring; 64. Mounting plate. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] This utility model embodiment specifically provides a circular saw device that facilitates the replacement of the saw blade. Please refer to... Figure 1 It includes the circular saw body 1, blade 2, mounting cylinder 3, positioning component 4, and fixing component.

[0035] The circular saw body 1 has a through-hole 11, and the blade 2 is placed inside the through-hole 11. The width of the through-hole 11 is greater than the outer diameter of the blade 11, so that the blade 11 can be quickly moved and installed inside the through-hole 11. One end of the mounting cylinder 3 is connected to the transmission component of the circular saw body 1, and the other end is detachably connected to the blade 2 through the positioning component 4 and the fixing component, so that the mounting cylinder 3 can drive the blade 2 to rotate synchronously after being connected to the blade 2, and meet the need for quick loading and unloading of the blade 2.

[0036] Specifically, please refer to Figure 2 The blade 2 is coaxially fixed with a docking cylinder 21. The blade 2 is connected to the positioning component 4 and the fixing component through the docking cylinder 21, so that the blade 2 can be quickly installed and removed, optimizing the operation steps and improving efficiency.

[0037] Further, please refer to Figure 2 and Figure 3 The mounting cylinder 3 is inserted into one end of the docking cylinder 21. The fixing component includes a fixing member 5 and a locking member 6. After the fixing member 5 is inserted into the other end of the docking cylinder 21, it is connected to the mounting cylinder 3 and the locking member 6. The mounting cylinder 3 is fixed to the docking cylinder 21 through the locking member 6, so that the fixing member 5 and the locking member 5 can cooperate to ensure the quick loading and unloading of the blade 2 while ensuring the stable rotation operation of the blade 2.

[0038] The positioning component 4 includes a support 41 fixedly connected to the outside of the mounting cylinder 3, a positioning rod 42 fixed at one end to the support 41, and a positioning block 43 inserted into the other end of the positioning rod 42. The positioning block 43 is fixedly connected to the outside of the docking cylinder 21. The positioning component 4 has two or more locations on the mounting cylinder 3 and the docking cylinder 21. When the mounting cylinder 3 and the docking cylinder 21 are coaxially docked, the positioning rod 42 and the positioning block 43 can be positioned and inserted first so that the mounting cylinder 3 and the docking cylinder 21 can meet the initial docking installation, so that the docking cylinder 21 can initially maintain circumferential rotation and fixation.

[0039] The fixing component 5 includes a fixing cylinder 51 whose outer wall is inserted into the docking cylinder 21, a fixing bolt 52 installed in the fixing cylinder 51, and a conical block 53 fixed to one end of the fixing cylinder 51 near the mounting cylinder 3. The fixing cylinder 51 is used to keep the mounting cylinder 3 fixed, and the conical block 53 is used to cooperate with the locking component 6 so that the docking cylinder 21 can be kept fixed in circumferential and axial movement by the locking component 6.

[0040] During implementation, a fixed seat 31 is fixed inside the mounting cylinder 3. The fixing bolt 52 is threadedly connected to the fixing cylinder 51, the conical block 53 and the fixed seat 31, so that after the fixing cylinder 51 is inserted into the docking cylinder 21, the fixing bolt 52 is gradually rotated to keep the fixing cylinder 51 and the fixed seat 31 fixed.

[0041] The outer side of the conical block 53 is slidably engaged with the locking member 6, so that the docking cylinder 21 is initially fixed in the circumferential direction before being fixed in the circumferential and axial directions.

[0042] Further, please refer to Figure 4 The locking component 6 includes a bracket 61 fixedly connected to the inner wall of the mounting cylinder 3, a locking rod 62 slidably mounted on the bracket 61, a spring 63 mounted on the outer side of the locking rod 62, and a mounting plate 64 coaxially fixed to the outer wall of the locking rod 62. The inner end of the locking rod 62 slides in contact with the surface of the conical block 53. The two ends of the spring 63 are fixed to the mounting cylinder 3 and the mounting plate 64 respectively, so as to provide the locking rod 62 with a telescopic sliding reset force through the spring 63.

[0043] The mounting cylinder 3 and the docking cylinder 21 are respectively provided with a through hole 32 and a locking hole 23.

[0044] The outer end of the locking rod 62 is inserted into the through hole 32 and the locking hole 23 in sequence. In the normal state, the outer end of the locking rod 62 is located in the through hole 32. When the fixing cylinder 51 is fixed to the fixing seat 31, it will drive the conical block 53 to move into the mounting cylinder 3, so that the outer side of the conical block 23 pushes the locking rod 62, causing the outer end of the locking rod 62 to slide out of the through hole 32 and be inserted into the locking hole 23, thereby keeping the mounting cylinder 21 fixed in both the circumferential and axial directions. This allows for easy disassembly while meeting the needs of daily rotary cutting. When disassembly is required, simply unscrew the fixing bolt 52, remove the fixing cylinder 51, and allow the locking rod 52 to move out of the locking hole 23 through the return spring force. Then, the docking cylinder 21 can be removed from the mounting cylinder 3.

[0045] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circular saw device for easy blade replacement, characterized in that: It includes the circular saw body (1), blade (2), mounting cylinder (3), positioning assembly (4), and fixing assembly; The circular saw body (1) has an opening (11), the blade (2) is placed in the opening (11), one end of the mounting cylinder (3) is connected to the transmission component of the circular saw body (1), and the other end is detachably connected to the blade (2) through the positioning component (4) and the fixing component.

2. The circular saw device for easy blade replacement according to claim 1, characterized in that: The blade (2) is coaxially fixed with a docking cylinder (21), and the blade (2) is connected to the positioning component (4) and the fixing component through the docking cylinder (21).

3. A circular saw device for easy blade replacement according to claim 2, characterized in that: The mounting cylinder (3) is inserted into one end of the docking cylinder (21). The fixing component includes a fixing member (5) and a locking member (6). After the fixing member (5) is inserted into the other end of the docking cylinder (21), it is connected to the mounting cylinder (3) and the locking member (6). The mounting cylinder (3) is fixed to the docking cylinder (21) through the locking member (6).

4. A circular saw device for easy blade replacement according to claim 3, characterized in that: The positioning component (4) includes a support (41) fixedly connected to the outside of the mounting cylinder (3), a positioning rod (42) fixed at one end to the support (41), and a positioning block (43) inserted into the other end of the positioning rod (42). The positioning block (43) is fixedly connected to the outside of the docking cylinder (21).

5. A circular saw device for easy blade replacement according to claim 4, characterized in that: The fastener (5) includes a fixed cylinder (51) whose outer wall is inserted into the docking cylinder (21), a fixing bolt (52) installed in the fixed cylinder (51), and a conical block (53) fixed to one end of the fixed cylinder (51) near the mounting cylinder (3).

6. A circular saw device for easy blade replacement according to claim 5, characterized in that: The mounting cylinder (3) is fixedly provided with a fixing seat (31), and the fixing bolt (52) is threadedly connected to the fixing cylinder (51), the conical block (53) and the fixing seat (31).

7. A circular saw device for easy blade replacement according to claim 6, characterized in that: The outer side of the conical block (53) is in sliding engagement with the locking member (6).

8. A circular saw device for easy blade replacement according to claim 7, characterized in that: The locking component (6) includes a bracket (61) fixedly connected to the inner wall of the mounting cylinder (3), a locking rod (62) slidably mounted on the bracket (61), a spring (63) mounted on the outer side of the locking rod (62), and a mounting plate (64) coaxially fixed to the outer wall of the locking rod (62). The inner end of the locking rod (62) slides in contact with the surface of the conical block (53).

9. A circular saw device for easy blade replacement according to claim 8, characterized in that: The mounting cylinder (3) and the docking cylinder (21) are respectively provided with a through hole (32) and a locking hole (23).

10. A circular saw device for easy blade replacement according to claim 9, characterized in that: The outer end of the locking rod (62) is inserted into the through hole (32) and the locking hole (23) in sequence.

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