Reaming cutter with adjustable blade locking mechanism

Abstract

The utility model belongs to the technical field of chambering cutters, particularly relates to a chambering cutter with an adjustable blade locking mechanism, and aims at solving the problem that an existing blade cannot be replaced, the chambering cutter comprises a cutter bar, a clamping groove is formed in the cutter bar, a clamping block penetrates out of the clamping groove, the blade is fixedly installed at the bottom end of the clamping block, and the adjustable blade locking mechanism is arranged on the cutter bar. A locking mechanism is arranged on the outer wall of the cutter bar; the locking mechanism comprises a sliding block, the torque strength between the cutter bar and the blade is improved through mutual meshing of the clamping groove and the clamping block, and the cutter bar and the blade are fixed through a limiting rod at the top end of the sliding block, penetrate through an abutting block through a through hole and penetrate into a fixing ring through a limiting hole and are fixed under abutting of a fastening ring at the same time. According to the broaching tool, the tool bar and the blade can be rapidly disassembled and locked, the stability after assembly is improved through limiting of the limiting rod, the loosening condition is avoided, the suitable blade can be replaced according to the use condition, and the situation that the whole broaching tool is tedious and troublesome to replace is avoided.

Description

Technical Field

[0001] This utility model relates to a reamer, specifically a reamer with an adjustable blade locking mechanism, belonging to the field of reamer technology. Background Technology

[0002] A reamer is a tool used to further process a machined hole to enlarge its diameter and improve its machining accuracy and surface quality. The tool body is driven to rotate by the machine tool's drive unit, and the tool is fed along the axis of the hole. The cutting edge of the insert contacts the inner wall of the machined hole. Under the combined action of rotation and feed motion, the material on the hole wall is gradually cut away, thereby achieving the purpose of enlarging the hole diameter.

[0003] In the prior art, such as the guide support reamer disclosed in CN219484311U, the tool holder structure is optimized so that the tool holder is a two-section tool holder, the diameter of the rear section tool holder is larger than the diameter of the front section tool holder, and the rear section tool holder and the front section tool holder are connected by a truncated cone that serves as a transition. This utility model improves the stability of processing, avoids tool vibration, and makes it convenient to replace the cutting tool, thus reducing the tool replacement cost.

[0004] However, in implementing the relevant technology, the following problems were found in the above-mentioned design of the reamer with guide support: In the prior art, the stability of the machining can be improved by the cooperation of components such as the tool holder, but in the actual use, when the cutting tool wears or a cutting tool of a different size is replaced, the entire tool needs to be replaced, resulting in slow efficiency. In view of this, a reamer with an adjustable cutting tool locking mechanism is provided to overcome the above defects. Utility Model Content

[0005] This invention provides a reamer with an adjustable blade locking mechanism to solve the aforementioned technical problem of non-replaceable blades.

[0006] The present invention achieves the above objectives through the following technical solution: a reamer with an adjustable blade locking mechanism, comprising a shank, wherein a slot is provided inside the shank, and a locking block protrudes from inside the slot, and a blade is fixedly installed at the bottom end of the locking block, and a locking mechanism is provided on the outer wall of the shank.

[0007] The locking mechanism includes a sliding block, the outer wall of the blade bar is slidably connected to the sliding block, and a limit rod is fixedly installed at the top of the sliding block. An abutment block is fixedly installed at one end of the locking block that protrudes from the locking groove, and a through hole is opened inside the abutment block.

[0008] As a further embodiment of this utility model: a fixing ring is fixedly installed above the outer contact block of the tool bar, and a limiting hole is opened inside the fixing ring corresponding to the position of the limiting rod; a fastening ring is slidably connected below the outer sliding block of the tool bar.

[0009] As a further improvement of this utility model: a sleeve is fitted around the outside of the fastening ring, and a connecting mechanism is provided below the fastening ring inside the sleeve.

[0010] As a further embodiment of this utility model: the connecting mechanism includes a mounting groove, which is formed on the outer wall of the fastening ring, and a support rod is fixedly installed inside the mounting groove.

[0011] As a further embodiment of this utility model: the outer wall of the support rod is rotatably connected to a fastening plate, and the outer wall of the blade is rotatably engaged with a rotating ring.

[0012] As a further improvement of this utility model: the outer wall of the rotating ring is provided with an insertion groove at the position corresponding to the fastening plate, and a fixing groove is provided inside the insertion groove.

[0013] As a further improvement of this utility model: the sleeve is threadedly connected to the rotating ring, and the sleeve is also threadedly connected to the fastening plate.

[0014] The beneficial effects of this utility model are as follows: Firstly, the interlocking of the slot and the block increases the torque between the tool bar and the blade. Secondly, the limiting rod at the top of the sliding block passes through the through hole to the contact block and then through the limiting hole to the fixing ring. Simultaneously, it is fixed under the contact of the fastening ring. This enables the tool bar and the blade to be quickly disassembled and locked. The limiting rod also improves the stability after assembly and prevents loosening. Thirdly, it allows for the replacement of the appropriate blade according to the usage, avoiding the cumbersome and troublesome replacement of the entire reaming tool.

[0015] The fastening plate is rotated by the support rod and inserted into the slot of the rotating ring. It is then engaged through the fixing slot. At the same time, the sleeve covers the rotating ring and the fastening plate and connects them by threads. This can further improve the stability of the connection between the knife bar and the blade, improve the locking effect and prevent loosening or shaking. The rotating ring that engages with the blade can be adjusted according to the position of the fastening plate to avoid misalignment. 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 card block structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the mounting groove 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. Slot; 3. Block; 4. Blade; 5. Locking mechanism; 501. Sliding block; 502. Limiting rod; 503. Abutting block; 504. Through hole; 505. Fixing ring; 506. Limiting hole; 507. Fastening ring; 6. Sleeve; 7. Connecting mechanism; 701. Mounting groove; 702. Support rod; 703. Fastening plate; 704. Rotating ring; 705. Insertion groove; 706. Fixing groove. 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 4 As shown, a reamer with an adjustable blade locking mechanism includes a shank 1. A groove 2 is formed inside the shank 1, and a locking block 3 extends through the groove 2. A blade 4 is fixedly mounted at the bottom of the locking block 3. A locking mechanism 5 is provided on the outer wall of the shank 1. The locking mechanism 5 includes a sliding block 501, which is slidably connected to the outer wall of the shank 1. A limit rod 502 is fixedly mounted at the top of the sliding block 501. An abutment block 503 is fixedly mounted at one end of the locking block 3 extending through the groove 2. A through hole 504 is formed inside the abutment block 503. A fixing ring 505 is fixedly mounted above the abutment block 503 on the outside of the shank 1. The fixing ring 505 has a corresponding limit rod inside. A limiting hole 506 is provided at the position of the positioning rod 502, and a fastening ring 507 is slidably connected below the outer sliding block 501 of the tool bar 1. First, the mutual engagement of the slot 2 and the locking block 3 increases the torque force between the tool bar 1 and the blade 4. Then, the limiting rod 502 at the top of the sliding block 501 passes through the through hole 504, through the abutment block 503, and through the limiting hole 506 into the fixing ring 505. At the same time, it is fixed under the abutment of the fastening ring 507. This can realize the quick disassembly and locking of the tool bar 1 and the blade 4. The limiting rod 502 improves the stability after assembly and avoids loosening. The appropriate blade 4 can be replaced according to the usage, avoiding the cumbersome and troublesome replacement of the entire reaming tool. Example 2

[0023] In addition to all the technical features in Embodiment 1, this embodiment also includes: a sleeve 6 is sleeved on the outside of the fastening ring 507, and a connecting mechanism 7 is provided below the fastening ring 507 inside the sleeve 6. The connecting mechanism 7 includes a mounting groove 701, which is formed on the outer wall of the fastening ring 507. A support rod 702 is fixedly installed inside the mounting groove 701. A fastening plate 703 is rotatably connected to the outer wall of the support rod 702. A rotating ring 704 is rotatably engaged with the outer wall of the blade 4. A through groove 705 is formed on the outer wall of the rotating ring 704 corresponding to the position of the fastening plate 703. The sleeve 6 is internally provided with a fixing groove 706. The sleeve 6 is threadedly connected to the rotating ring 704 and the fastening plate 703. The fastening plate 703 is rotated by the support rod 702 and passes through the insertion groove 705 of the rotating ring 704. It is then engaged by the fixing groove 706. At the same time, the sleeve 6 covers the rotating ring 704 and the fastening plate 703 and is threadedly connected. This can further improve the stability of the connection between the tool bar 1 and the blade 4, improve the locking effect and avoid loosening or shaking. Meanwhile, the rotating ring 704, which is engaged with the blade 4, can be adjusted according to the position of the fastening plate 703 to avoid misalignment.

[0024] Working principle: First, the tool holder 1 engages with the insert 4's locking block 3 via the slot 2, thereby increasing the torque force during rotation. The sliding block 501 slides along the tool holder 1, allowing the limiting rod 502 to pass through the through hole 504, through the abutment block 503, and into the limiting hole 506 of the fixing ring 505. Simultaneously, the position of the fastening ring 507 threaded to the tool holder 1 is adjusted, causing the sliding block 501 to abut against the abutment block 503 on one side of the locking block 3, achieving a clamping and fixing effect. This allows the tool holder 1 and insert 4 to be disassembled and reassembled to adjust for different sizes of insert 4, and achieves a quick locking effect. The limiting rod 502... The limiting position of 2 can greatly improve the stability of the tool holder 1 and the blade 4 after assembly, and maintain the torque force after drilling to prevent loosening. At the same time, the mounting groove 701 of the fastening ring 507 fixes the support rod 702, allowing the snap-fit ​​plate 703 to rotate and pass through the insertion groove 705 of the rotating ring 704 and be engaged through the fixing groove 706. The rotation and engagement of the rotating ring 704 and the blade 4 can be adjusted and engaged according to the position of the snap-fit ​​plate 703. At the same time, the snap-fit ​​plate 703 and the rotating ring 704 are threadedly connected to the sleeve 6, which facilitates the installation and threaded connection, and improves the stability of the tool holder 1 and the blade 4 after locking.

[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 reamer with an adjustable blade locking mechanism, comprising a shank (1), characterized in that: The tool bar (1) has a slot (2) inside, and a locking block (3) protrudes from the slot (2). A blade (4) is fixedly installed at the bottom of the locking block (3). A locking mechanism (5) is provided on the outer wall of the tool bar (1). The locking mechanism (5) includes a sliding block (501), the outer wall of the knife bar (1) is slidably connected to the sliding block (501), and the top of the sliding block (501) is fixedly installed with a limit rod (502). One end of the card block (3) that protrudes from the card slot (2) is fixedly installed with an abutment block (503), and the abutment block (503) has a through hole (504) inside.

2. A reamer with an adjustable blade locking mechanism according to claim 1, characterized in that: A fixing ring (505) is fixedly installed above the outer contact block (503) of the tool bar (1), and a limiting hole (506) is opened inside the fixing ring (505) corresponding to the position of the limiting rod (502). A fastening ring (507) is slidably connected below the outer sliding block (501) of the tool bar (1).

3. A reamer with an adjustable blade locking mechanism according to claim 2, characterized in that: The fastening ring (507) is fitted with a sleeve (6) on its outside, and a connecting mechanism (7) is provided below the fastening ring (507) inside the sleeve (6).

4. A reamer with an adjustable blade locking mechanism according to claim 3, characterized in that: The connecting mechanism (7) includes a mounting groove (701), which is opened on the outer wall of the fastening ring (507), and a support rod (702) is fixedly installed inside the mounting groove (701).

5. A reamer with an adjustable blade locking mechanism according to claim 4, characterized in that: The outer wall of the support rod (702) is rotatably connected to a fastening plate (703), and the outer wall of the blade (4) is rotatably engaged with a rotating ring (704).

6. A reamer with an adjustable blade locking mechanism according to claim 5, characterized in that: The outer wall of the rotating ring (704) is provided with an insertion groove (705) corresponding to the position of the fastening plate (703), and a fixing groove (706) is provided inside the insertion groove (705).

7. A reamer with an adjustable blade locking mechanism according to claim 3, characterized in that: The sleeve (6) is threadedly connected to the rotating ring (704), and the sleeve (6) is threadedly connected to the fastening plate (703).

Images