Cutter with replaceable blade

Abstract

The cutter with the replaceable blade comprises a cutter handle, a cutter head is fixedly installed on the outer surface of one end of the cutter handle, the blade is arranged on one side of the cutter head, an inserting groove is formed in the outer surface of the end, away from the cutter handle, of the cutter head, and the rear end of the blade is connected with the inserting groove in an inserted mode. An anti-loosening structure is arranged at the rear end of the inserting groove, the anti-loosening structure comprises a mounting hole, a movable block and a first compression spring, a limiting assembly is mounted at the upper end of the tool bit, and the limiting assembly comprises a sliding hole, a mounting cavity, a second compression spring, a limiting block, a bevel wedge block, a guide rod and a pull head. The sliding hole is formed in the front end of the outer surface of the upper end of the tool bit, the lower end of the sliding hole communicates with the inserting groove, and a clamping groove is formed in the middle of the outer surface of the upper end of the blade. According to the cutter with the replaceable blade, the limiting assembly is arranged, so that the blade is convenient to mount and dismount, and the anti-loosening structure is arranged, so that the blade is more stable after being mounted.

Description

Technical Field

[0001] This utility model relates to the field of lathe tool technology, specifically a tool with replaceable inserts. Background Technology

[0002] A lathe tool is a cutting tool with a cutting part used for turning; it is one of the most widely used cutting tools in machining.

[0003] Loosening the screws securing the tool holder with a wrench or other tools requires a tedious disassembly and assembly process, reducing processing efficiency. Furthermore, to ensure the stability of the blade, an additional blade clamping plate is required, increasing the complexity of assembly.

[0004] Therefore, we propose a tool with replaceable blades. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides a tool with replaceable blades, which facilitates quick installation and removal of the blades and improves the stability of the blades after installation, thus effectively solving the problems in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a replaceable blade knife, including a handle, a blade head fixedly mounted on the outer surface of one end of the handle, a blade on one side of the blade head, a slot formed on the outer surface of the end of the blade head away from the handle, the rear end of the blade being inserted into the slot, an anti-loosening structure being provided at the rear end of the slot, the anti-loosening structure including a mounting hole, a movable block and a first compression spring, a limiting component mounted on the upper end of the blade head, the limiting component including a sliding hole, a mounting cavity, a second compression spring, a limiting block, a beveled wedge, a guide rod and a pull head, and the sliding hole being opened at the front end of the upper outer surface of the blade head, and the lower end of the sliding hole communicating with the slot, and a snap-fit ​​groove being formed in the middle of the upper outer surface of the blade.

[0009] Preferably, the mounting hole is located at the rear end of the slot, the first compression spring is located in the mounting hole, the rear end of the movable block extends into the mounting hole, and the first compression spring is fixedly installed between the rear end of the mounting hole and the rear end of the movable block.

[0010] Preferably, the outer wall of the movable block is slidably connected to the mounting hole, and the rear outer surface of the movable block is elastically connected to the rear end of the mounting hole through a first compression spring.

[0011] Preferably, the mounting cavity is located in the middle of the sliding hole, the limiting block and the second compression spring are both located in the mounting cavity, the limiting block is fixedly installed on the outer wall of the lower end of the guide rod, the inclined wedge is fixedly installed on the outer surface of the lower end of the guide rod, and the pull head is fixedly installed on the outer surface of the upper end of the guide rod.

[0012] Preferably, the second compression spring is movably sleeved on the outer wall of the guide rod, the lower outer surface of the second compression spring is fixedly connected to the upper outer surface of the limiting block, and the upper outer surface of the second compression spring is fixedly connected to the upper end of the mounting cavity.

[0013] Preferably, the outer wall of the guide rod is slidably connected to the sliding hole, the outer wall of the limiting block is slidably connected to the mounting cavity, the upper outer surface of the limiting block is elastically connected to the upper end of the mounting cavity through a second compression spring, and the outer wall of the inclined wedge block is snapped into the locking groove.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a knife with replaceable blades, which has the following advantages:

[0016] 1. This is a replaceable blade knife, which, through the setting of a limiting component, makes it easy to install and remove the blade.

[0017] 2. This type of replaceable blade knife, through the setting of an anti-loosening structure, makes the blade more stable after installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a replaceable blade cutting tool according to the present invention.

[0019] Figure 2 This is a schematic diagram of the blade structure in a replaceable blade cutting tool according to the present invention.

[0020] Figure 3 This is a schematic diagram of the cutting head, anti-loosening structure, and limiting component in a replaceable blade cutting tool according to this utility model.

[0021] Figure 4 This is a partial structural diagram of a limiting component in a replaceable blade cutting tool according to the present invention.

[0022] In the diagram: 1. Handle; 2. Blade head; 3. Slot; 4. Anti-loosening structure; 5. Blade; 6. Limiting component; 7. Snap-fit ​​groove; 8. Mounting hole; 9. Movable block; 10. First compression spring; 11. Sliding hole; 12. Mounting cavity; 13. Second compression spring; 14. Limiting block; 15. Angled wedge block; 16. Guide rod; 17. Pull head. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This embodiment is a replaceable blade cutting tool.

[0025] like Figure 1-4 As shown, the tool includes a handle 1, a blade head 2 is fixedly mounted on the outer surface of one end of the handle 1, a blade 5 is provided on one side of the blade head 2, a slot 3 is provided on the outer surface of the end of the blade head 2 away from the handle 1, the rear end of the blade 5 is inserted into the slot 3, an anti-loosening structure 4 is provided at the rear end of the slot 3, the anti-loosening structure 4 includes a mounting hole 8, a movable block 9 and a first compression spring 10, a limiting component 6 is installed at the upper end of the blade head 2, the limiting component 6 includes a sliding hole 11, a mounting cavity 12, a second compression spring 13, a limiting block 14, a beveled wedge 15, a guide rod 16 and a pull head 17, and the sliding hole 11 is opened at the front end of the upper outer surface of the blade head 2, and the lower end of the sliding hole 11 is connected to the slot 3, and a snap-fit ​​groove 7 is provided in the middle of the upper outer surface of the blade 5.

[0026] Mounting hole 8 is located at the rear end of slot 3. First compression spring 10 is located in mounting hole 8. The rear end of movable block 9 extends into mounting hole 8. First compression spring 10 is fixedly installed between the rear end of mounting hole 8 and the rear end of movable block 9. The outer wall of movable block 9 is slidably connected to mounting hole 8. The outer surface of the rear end of movable block 9 is elastically connected to the rear end of mounting hole 8 through first compression spring 10. Mounting cavity 12 is located in the middle of sliding hole 11. Limiting block 14 and second compression spring 13 are both located in mounting cavity 12. Limiting block 14 is fixedly installed on the outer wall of the lower end of guide rod 16. Inclined wedge block 15 is fixedly installed on guide rod 16. The lower outer surface of the guide rod 16 is fixedly mounted with the pull head 17 on the upper outer surface of the guide rod 16; the second compression spring 13 is movably sleeved on the outer wall of the guide rod 16, the lower outer surface of the second compression spring 13 is fixedly connected to the upper outer surface of the limiting block 14, and the upper outer surface of the second compression spring 13 is fixedly connected to the upper end of the mounting cavity 12; the outer wall of the guide rod 16 is slidably connected to the sliding hole 11, the outer wall of the limiting block 14 is slidably connected to the mounting cavity 12, the upper outer surface of the limiting block 14 is elastically connected to the upper end of the mounting cavity 12 through the second compression spring 13, and the outer wall of the inclined wedge block 15 is snapped into the snap-fit ​​groove 7.

[0027] It should be noted that this utility model is a replaceable blade knife. When installing the blade 5, simply insert the rear end of the blade 5 directly into the slot 3 to complete the installation. The principle is that when the rear end of the blade 5 is inserted into the slot 3, it compresses the inclined wedge block 15 in the limiting component 6. The inclined wedge block 15 slides along the sliding hole 11. The inclined wedge block 15 drives the limiting block 14 to compress the second compression spring 13 in the mounting cavity 12, so that the lower end of the inclined wedge block 15 enters the sliding hole 11. The rear end of the blade 5 then engages with the movable block 9 in the anti-loosening structure 4. The compression action causes the movable block 9 to compress the first compression spring 10 in the mounting hole 8. When the locking groove 7 in the blade 5 reaches one end of the inclined wedge block 15, the reaction force of the second compression spring 13 causes the inclined wedge block 15 to engage in the locking groove 7, thereby realizing the installation of the blade 5. At this time, the first compression spring 10 is in a compressed state, which can eliminate the looseness of the connection between the inclined wedge block 15 and the locking groove 7 and improve the stability of the engagement. When disassembling, simply pull the pull head 17 to separate the inclined wedge block 15 from the locking groove 7, and the blade 5 can be pulled out of the slot 3.

[0028] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A replaceable blade knife, comprising a handle (1), wherein a blade head (2) is fixedly mounted on the outer surface of one end of the handle (1), and a blade (5) is provided on one side of the blade head (2), characterized in that: The outer surface of the cutter head (2) away from the handle (1) has a slot (3). The rear end of the blade (5) is inserted into the slot (3). The rear end of the slot (3) is provided with an anti-loosening structure (4). The anti-loosening structure (4) includes a mounting hole (8), a movable block (9), and a first compression spring (10). The upper end of the cutter head (2) is equipped with a limiting component (6). The limiting component (6) includes a sliding hole (11), a mounting cavity (12), a second compression spring (13), a limiting block (14), a beveled wedge (15), a guide rod (16), and a pull head (17). The sliding hole (11) is opened at the front end of the upper outer surface of the cutter head (2), and the lower end of the sliding hole (11) is connected to the slot (3). The middle part of the upper outer surface of the blade (5) is provided with a snap-fit ​​groove (7).

2. The replaceable blade cutting tool according to claim 1, characterized in that: The mounting hole (8) is opened at the rear end of the slot (3), the first compression spring (10) is located in the mounting hole (8), the rear end of the movable block (9) extends into the mounting hole (8), and the first compression spring (10) is fixedly installed between the rear end of the mounting hole (8) and the rear end of the movable block (9).

3. The replaceable blade cutting tool according to claim 2, characterized in that: The outer wall of the movable block (9) is slidably connected to the mounting hole (8), and the rear outer surface of the movable block (9) is elastically connected to the rear end of the mounting hole (8) through the first compression spring (10).

4. A replaceable blade cutting tool according to claim 3, characterized in that: The mounting cavity (12) is located in the middle of the sliding hole (11). The limiting block (14) and the second compression spring (13) are both located in the mounting cavity (12). The limiting block (14) is fixedly installed on the outer wall of the lower end of the guide rod (16). The inclined wedge block (15) is fixedly installed on the outer surface of the lower end of the guide rod (16). The pull head (17) is fixedly installed on the outer surface of the upper end of the guide rod (16).

5. A replaceable blade cutting tool according to claim 4, characterized in that: The second compression spring (13) is movably sleeved on the outer wall of the guide rod (16). The lower outer surface of the second compression spring (13) is fixedly connected to the upper outer surface of the limiting block (14). The upper outer surface of the second compression spring (13) is fixedly connected to the upper end of the mounting cavity (12).

6. A replaceable blade cutting tool according to claim 5, characterized in that: The outer wall of the guide rod (16) is slidably connected to the sliding hole (11), the outer wall of the limiting block (14) is slidably connected to the mounting cavity (12), the upper outer surface of the limiting block (14) is elastically connected to the upper end of the mounting cavity (12) through the second compression spring (13), and the outer wall of the inclined wedge block (15) is snapped into the locking groove (7).

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