A round nose coating blade with blade offset prevention

Abstract

The utility model belongs to the technical field of round nose coating knife, especially kind -of round nose coating knife of blade deviation prevention is especially related to the utility model discloses a kind of round nose coating knife, aiming at the problem of existing blade loose deviation, the following scheme is presented, including knife bar, the inside of the knife bar is worn out limiting block, and the bottom end fixed mounting of limiting block has blade, the outside of the knife bar is provided with dismounting mechanism;The dismounting mechanism includes sliding slot, the sliding slot is opened in the outer wall of knife bar, the utility model first let sliding plate rotate through the penetration plate and support rod, so that the penetration slot of blade is penetrated, and let positioning block enter positioning hole, and slide along sliding slot and clamping groove by clamping block, according to the drilling depth required by blade to adjust to improve applicability and comprehensiveness, subsequently fixed ring is set with the threaded connection of knife bar, so that four groups of sliding plates are fastened, locking effect is played through positioning hole and positioning block, can quickly assemble to blade replacement, and avoid the situation that loose leads to blade deviation.

Description

Technical Field

[0001] This utility model relates to a round nose coated knife, specifically a round nose coated knife with blade anti-deviation, belonging to the technical field of round nose coated knives. Background Technology

[0002] Round nose coated cutting tools are widely used in the cutting tool industry. Unlike common sharp-tipped tools, the tip of a round nose coated cutting tool is round or arc-shaped. This design allows for a larger contact area between the cutting edge and the workpiece during cutting, resulting in a more even distribution of cutting force. This effectively reduces stress concentration during cutting, lowering the risk of tool wear and breakage. Simultaneously, the arc-shaped tip also produces better surface finish during machining, reducing workpiece surface roughness, making it particularly suitable for machining applications requiring high surface smoothness.

[0003] In the prior art, such as the round nose cutter with tungsten carbide coating disclosed in CN211276690U, when using the round nose cutter with tungsten carbide coating, the DLC lubricating coating is first fixed on the surface of the high-hardness tungsten carbide coating by gas deposition, which improves the chip removal function of the surface coating, keeps the exterior of the structure clean at all times, prevents chip adhesion, and effectively improves the machining accuracy. The high-hardness tungsten carbide coating adopts Super-tialn (hardness / 3200, thickness / 3.5um, maximum machining temperature 1100°C), and an adhesive is applied between it, the DLC lubricating coating and the hardness reinforcing layer to ensure the toughness and hardness of the cutting part of the round nose cutter, ensuring that it can process high-precision and high-hardness materials.

[0004] However, in implementing the relevant technology, the following problems were found in the above-mentioned design of a round nose cutter with tungsten steel coating: In the prior art, the hardness of the tool is improved by the combination of multiple coatings. However, in the actual use, in order to reduce costs, the tool holder can be reused. However, after the blade and tool holder are installed, they may become loose, which will cause the blade to deviate and affect the machining quality. In view of this, a round nose coated cutter with blade anti-displacement is provided to overcome the above defects. Utility Model Content

[0005] This invention addresses the problem of blade misalignment caused by the possibility of loosening after blade and blade holder installation, which affects machining quality, in order to reduce costs and allow for the reuse of tool holders. The invention provides a round nose coated tool to prevent blade misalignment.

[0006] The present invention achieves the above objectives through the following technical solution: a round nose coated blade with blade anti-deviation, comprising a blade shank, a limiting block extending through the inside of the blade shank, and a blade fixedly installed at the bottom end of the limiting block, and a disassembly and assembly mechanism provided on the outside of the blade shank;

[0007] The disassembly and assembly mechanism includes a slide groove, which is formed on the outer wall of the tool bar. The slide groove has slots on both sides inside. A locking block is slidably connected inside the slot. A through plate is fixedly installed at the bottom of the locking block. A sliding plate is sleeved on the outside of the through plate. A support rod is fixedly installed inside the sliding plate at the position corresponding to the through plate.

[0008] As a further improvement of this utility model: a fixing ring is slidably connected above the outer groove of the blade holder, and an insertion groove is provided on the outer wall of the blade.

[0009] As a further improvement of this utility model: a positioning hole is provided inside the insertion groove, and a positioning block is fixedly installed on the outer wall of the slide plate at the position corresponding to the positioning hole.

[0010] As a further improvement of this utility model: the fixing ring is threadedly connected to the tool bar, and the fixing ring is tightly fitted to the slide plate.

[0011] As a further embodiment of this utility model: an abutting mechanism is provided above the fixing ring, the abutting mechanism includes an abutting ring, the abutting ring is slidably connected above the fixing ring on the outer wall of the knife bar, and an abutting plate is fixedly installed at the front end of the locking block.

[0012] As a further improvement of this utility model: a fixing rod is fixedly installed at the bottom end of the fixing ring, and a connecting ring is fixedly installed at the bottom end of the fixing rod.

[0013] As a further improvement of this utility model: the connecting ring is threadedly connected to the tool bar, and a sliding structure is formed between the connecting ring and the slide plate.

[0014] The beneficial effects of this utility model are as follows: First, the slide plate is rotated by the insertion plate and support rod, thereby inserting into the insertion groove of the blade and allowing the positioning block to enter the positioning hole. The locking block slides along the slide groove and the locking groove, and the depth of drilling required by the blade is adjusted to improve applicability and versatility. Then, the fixing ring is fitted and threadedly connected to the blade bar, thereby securing the four sets of slide plates. The positioning hole and positioning block achieve a locking effect, which can quickly assemble and replace the blade while avoiding loosening that could cause the blade to shift.

[0015] The position is adjusted by connecting the contact ring and the tool bar with a threaded connection. The contact plate is clamped and fixed by the fixing ring, and the slide groove limits the movement of the locking block. This prevents the fixing ring or the contact ring from loosening due to torque during the turning process, thus positioning the slide plate. The connecting ring fixed by the fixing rod can further limit the movement of the slide plate, preventing loosening between the slide plates and further improving the stability of the tool bar and the blade connection, thus preventing the blade from shifting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the tool holder structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the support rod structure of this utility model.

[0020] In the diagram: 1. Tool holder; 2. Blade; 3. Limiting block; 4. Assembly / disassembly mechanism; 401. Slide groove; 402. Slot; 403. Locking block; 404. Insertion plate; 405. Slide plate; 406. Support rod; 407. Fixing ring; 408. Insertion groove; 409. Positioning hole; 410. Positioning block; 5. Abutting mechanism; 501. Abutting ring; 502. Abutting plate; 503. Connecting ring; 504. Fixing rod. 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. Example 1

[0022] like Figures 1 to 4As shown, a round-nose coated blade with anti-deviation feature includes a blade shank 1. A limiting block 3 extends through the inside of the blade shank 1, and a blade 2 is fixedly mounted at the bottom end of the limiting block 3. A disassembly / assembly mechanism 4 is provided on the outside of the blade shank 1. The disassembly / assembly mechanism 4 includes a sliding groove 401, which is formed on the outer wall of the blade shank 1. Slots 402 are formed on both sides of the inside of the sliding groove 401. A locking block 403 is slidably connected inside the slots 402. A through-plate 404 is fixedly mounted at the bottom end of the locking block 403. A sliding plate 405 is sleeved on the outside of the through-plate 404. A support rod 406 is fixedly mounted inside the sliding plate 405 at a position corresponding to the through-plate 404. A fixing ring 407 is slidably connected above the sliding groove 401 on the outside of the blade shank 1. A through-groove 408 is formed on the outer wall of the blade 2, and a positioning hole 40 is formed inside the through-groove 408. 9. A positioning block 410 is fixedly installed on the outer wall of the slide plate 405 at the position corresponding to the positioning hole 409. The fixing ring 407 is threadedly connected to the tool bar 1, and the fixing ring 407 fits tightly with the slide plate 405. First, the slide plate 405 is rotated through the insertion plate 404 and the support rod 406, so that it passes through the insertion groove 408 of the blade 2, and the positioning block 410 enters the positioning hole 409. It slides along the slide groove 401 and the slot 402 through the locking block 403. The depth of drilling of the blade 2 can be adjusted to improve applicability and versatility. Then, the fixing ring 407 is fitted and threadedly connected to the tool bar 1, so as to fasten the four sets of slide plates 405. The positioning hole 409 and the positioning block 410 play a locking role, which can quickly assemble and replace the blade 2, and prevent the blade 2 from shifting due to loosening. Example 2

[0023] In addition to all the technical features included in Embodiment 1, this embodiment also includes: an abutting mechanism 5 is provided above the fixing ring 407, the abutting mechanism 5 includes an abutting ring 501, the abutting ring 501 is slidably connected to the upper part of the fixing ring 407 on the outer wall of the tool bar 1, an abutting plate 502 is fixedly installed at the front end of the locking block 403, a fixing rod 504 is fixedly installed at the bottom end of the fixing ring 407, a connecting ring 503 is fixedly installed at the bottom end of the fixing rod 504, the connecting ring 503 is threadedly connected to the tool bar 1, and a sliding structure is formed between the connecting ring 503 and the sliding plate 405; The position of the contact ring 501 is adjusted by the threaded connection between the contact ring 501 and the tool holder 1. The contact ring 502 is clamped and fixed by the fixing ring 407. The sliding groove 401 limits the position of the locking block 403, preventing torque from causing the fixing ring 407 or the contact ring 501 to loosen during the turning process. This allows the slide plate 405 to be positioned. The connecting ring 503, which is fixed by the fixing rod 504, can further limit the position of the slide plate 405, preventing loosening between the slide plates 405. This further improves the stability of the tool holder 1 and the blade 2 after connection and prevents the blade 2 from shifting.

[0024] Working principle: The blade 2 and the limiting block 3 are integrated. The limiting block 3 is inserted into the tool holder 1 to provide initial positioning. The tool holder 1 is used to fix it to the machine tool or clamping end. The locking block 403 is rotatably connected to the slide plate 405 through the through plate 404 and the support rod 406. After rotation, the slide plate 405 passes through the through groove 408 opened in the blade 2, and the positioning block 410 enters the positioning hole 409. The fixing ring 407, which is connected by threads, is simultaneously sleeved on the outside of the tool holder 1 and the slide plate 405 for positioning. The positioning block 410 and the positioning hole 409 provide positioning. The combination of the locking mechanism and the locking mechanism ensures a tight fit, preventing the blade 2 from shifting or loosening. The locking block 403 slides along the slide groove 401 and the slot 402, allowing the position of the blade 2 to be adjusted according to the grinding or drilling depth. The fixing ring 407 supports the abutment plate 502, which is clamped by the abutment ring 501 to prevent loosening. The connecting ring 503, fixed by the fixing rod 504, limits the sliding plate 405, further improving the stability of the four sliding plates 405 and preventing the blade 2 from shifting due to loosening or shaking.

[0025] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] 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 round-nose coated blade with blade anti-deviation feature, comprising a blade shank (1), characterized in that: The inside of the cutter bar (1) extends through a limiting block (3), and a blade (2) is fixedly installed at the bottom end of the limiting block (3). A disassembly and assembly mechanism (4) is provided on the outside of the cutter bar (1). The disassembly and assembly mechanism (4) includes a slide groove (401), which is opened on the outer wall of the tool bar (1). The slide groove (401) has slots (402) on both sides inside. A locking block (403) is slidably connected inside the slot (402). A through plate (404) is fixedly installed at the bottom of the locking block (403). A sliding plate (405) is sleeved on the outside of the through plate (404). A support rod (406) is fixedly installed inside the sliding plate (405) at the position corresponding to the through plate (404).

2. The round nose coated blade for preventing blade misalignment according to claim 1, characterized in that: A fixing ring (407) is slidably connected above the outer groove (401) of the blade (1), and an insertion groove (408) is provided on the outer wall of the blade (2).

3. A round-nose coated blade for preventing blade misalignment according to claim 2, characterized in that: The insertion groove (408) has a positioning hole (409) inside, and a positioning block (410) is fixedly installed on the outer wall of the slide plate (405) at the position corresponding to the positioning hole (409).

4. A round-nose coated blade for preventing blade misalignment according to claim 2, characterized in that: The retaining ring (407) is threadedly connected to the tool holder (1), and the retaining ring (407) is tightly fitted to the slide plate (405).

5. A round-nose coated blade for preventing blade misalignment according to claim 2, characterized in that: An abutting mechanism (5) is provided above the fixing ring (407). The abutting mechanism (5) includes an abutting ring (501). The abutting ring (501) is slidably connected above the fixing ring (407) on the outer wall of the knife bar (1). An abutting plate (502) is fixedly installed at the front end of the locking block (403).

6. A round-nose coated blade for preventing blade misalignment according to claim 5, characterized in that: A fixing rod (504) is fixedly installed at the bottom end of the fixing ring (407), and a connecting ring (503) is fixedly installed at the bottom end of the fixing rod (504).

7. A round-nose coated blade for preventing blade misalignment according to claim 6, characterized in that: The connecting ring (503) is threadedly connected to the tool holder (1), and a sliding structure is formed between the connecting ring (503) and the slide plate (405).

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