A P-type cutter

Abstract

The utility model discloses a P type cutter, including handle, the handle one end inside has the internal hexagonal screw rod through the thread connection, the handle inside is provided with the pressure rod, the handle one end place has the backing pad outside the pressure rod, the backing pad top place has the blade, the blade both ends are provided with the limiting plate of limiting the blade, the blade top is provided with the limiting plate of extruding the blade, the limiting plate and limiting plate move with internal hexagonal screw rod remove and move, compared with prior art, the beneficial effects of the utility model, this P type cutter innovated the double structure of pressure rod extrusion and limiting plate, limiting plate cooperative fixing, through the lever movement of rotating internal hexagonal screw rod drive pressure rod, realize the preliminary extrusion fixed of blade, simultaneously, the limiting plate is located to the both ends of blade, and the limiting plate extrudes the top of blade, forms the multidimensional fixed constraint, has improved the stability of blade in the processing process obviously, effectively prevents the blade displacement or deflection.

Description

Technical Field

[0001] This utility model relates to the field of P-type cutting tool technology, specifically a P-type cutting tool. Background Technology

[0002] P-type tools mainly refer to P-type carbide turning tools, which are a type of CNC cutting tool. They are suitable for machining ferrous metals, and their inserts are made of WC-TiC-Co (a mixture of tungsten carbide, titanium carbide, and cobalt). They are characterized by high wear resistance and high red hardness and are commonly used in CNC lathe machining.

[0003] While existing P-type cutting tools meet users' needs to a certain extent, they still have certain shortcomings during use. Specifically, the cutting tool fixing method is simple, often relying on a single pressure bar or bolt for fixation. In high-speed cutting or high-vibration machining environments, the cutting tool is prone to loosening, leading to decreased machining accuracy and even safety hazards. Furthermore, most cutting tools only fix the cutting tool in one direction, lacking multi-dimensional limiting constraints. Under the action of cutting forces, the cutting tool is prone to displacement or deflection, affecting the machining dimensional accuracy and surface quality. Based on this, this utility model designs a P-type cutting tool to solve the above problems. Utility Model Content

[0004] This utility model provides a P-type cutting tool, which can effectively solve the problems mentioned in the background art, such as the single method of blade fixing, which mostly relies on a single pressure bar or bolt for fixing. In high-speed cutting or high-vibration machining environments, the blade is prone to loosening, resulting in a decrease in machining accuracy and even safety hazards. Moreover, most cutting tools only fix the blade in one direction and lack multi-dimensional limiting constraints on the blade. Under the action of cutting force, the blade is prone to displacement or deflection, which affects the machining dimensional accuracy and surface quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a P-type cutting tool, including a tool holder, an internal hexagonal screw connected to one end of the tool holder by a thread, a pressure rod provided inside the tool holder, a pad placed on one end of the tool holder outside the pressure rod, and a blade placed on top of the pad. The blade is provided with limiting plates at both ends to limit the blade position, and a limiting plate is provided at the top of the blade to compress the blade. The limiting plates and the limiting plates move with the internal hexagon screw.

[0006] A preferred embodiment of a P-type cutting tool is provided, wherein a fixed ring is fixedly connected to the outer side of the internal hexagonal screw, a rotating ring is rotatably connected to the outer side of the fixed ring, a mounting rod is mounted on one end of the rotating ring by a screw, a limit plate is welded to both ends of the mounting rod, and a limiting plate is welded to both ends of the middle part of the mounting rod.

[0007] A P-type cutting tool, preferably, has a spring telescopic column installed at one end of the inner side of the rotating ring by a screw, a fixing block installed at the top of the spring telescopic column by a screw, and a clamping plate rotatably connected to the outside of the fixing block.

[0008] A P-type cutting tool, preferably, wherein the fixing ring is T-shaped, and the rotating ring has a corresponding groove at the position corresponding to the fixing ring, and the outer side of the fixing ring is in contact with the inner wall of the corresponding groove.

[0009] A P-type cutting tool, preferably, wherein the end face of the limiting plate is in contact with both end faces of the blade, and the bottom surface of the limiting plate is in contact with the top surface of the blade.

[0010] A P-type cutting tool, preferably, has limit posts welded to both ends of the bottom of the mounting rod.

[0011] A P-type cutting tool, preferably, wherein one end face of the clamping plate is in contact with one end face of the internal hexagonal screw, and the fixing block is convex.

[0012] A P-type cutting tool, preferably, has a limiting groove formed at the position of the limiting post corresponding to the tool holder, and the limiting post is slidably connected inside the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The structure of this utility model is scientific and reasonable, and it is safe and convenient to use: This P-type tool innovatively adopts a dual structure of pressure rod extrusion and coordinated fixation by limiting plate and restricting plate. By rotating the internal hexagonal screw, the pressure rod is driven to make lever movement to achieve the initial extrusion and fixation of the blade. At the same time, the limiting plate limits the two ends of the blade and the restricting plate extrudes the top of the blade, forming a multi-dimensional fixed constraint, which significantly improves the stability of the blade during the processing and effectively prevents the blade from displacement or deflection. By rotating the clamping plate to make it contact the inside of the internal hexagonal screw, and using the elasticity of the spring extension column to maintain the clamping plate's limiting effect on the screw, the internal hexagonal screw is effectively prevented from loosening due to cutting vibration, thus avoiding machining quality problems caused by screw loosening and greatly improving the reliability and safety of tool use. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the pressure bar installation structure of this utility model; Figure 3 This is a schematic diagram of the installation structure of the limiting post of this utility model; Figure 4 This is the utility model Figure 3 Enlarged structural diagram of region A in the middle; The following are the labels in the diagram: 1. Tool holder; 2. Socket hex screw; 3. Pressure rod; 4. Pad; 5. Blade; 6. Fixing ring; 7. Rotating ring; 8. Mounting rod; 9. Limiting plate; 10. Limiting post; 11. Restricting plate; 12. Fixing block; 13. Spring telescopic post; 14. Clamping plate. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example: Figure 1-4 As shown, the present invention provides a technical solution: a P-type cutting tool, including a handle 1, an internal hexagon screw 2 connected to one end of the handle 1 by a thread, a pressure rod 3 provided inside the handle 1, a pad 4 placed outside the pressure rod 3 at one end of the handle 1, and a blade 5 placed on top of the pad 4. The operator places the blade 5 on top of the pad 4 and rotates the internal hex screw 2 to drive the pressure rod 3, causing the pressure rod 3 to operate as a lever, so that the end face of the pressure rod 3 contacts the end face of the blade 5, squeezing the blade 5 and fixing it in place.

[0018] A fixed ring 6 is fixedly connected to the outside of the internal hexagon screw 2. A rotating ring 7 is rotatably connected to the outside of the fixed ring 6. An installation rod 8 is installed at one end of the rotating ring 7 by a screw. Limiting plates 9 are welded to both ends of the installation rod 8. Limiting plates 11 are welded to both ends of the middle part of the installation rod 8. Limiting posts 10 are welded to both ends of the bottom of the installation rod 8. A spring telescopic post 13 is installed at one end of the inside of the rotating ring 7 by a screw. A fixing block 12 is installed at the top of the spring telescopic post 13 by a screw. A clamping plate 14 is rotatably connected to the outside of the fixing block 12.

[0019] The fixed ring 6 is T-shaped, and the rotating ring 7 has a corresponding groove at the position of the fixed ring 6. The outer side of the fixed ring 6 is in contact with the inner wall of the corresponding groove to ensure the stability of the rotation of the rotating ring 7 and to prevent the rotating ring 7 from falling off.

[0020] The end face of the limiting plate 9 is in contact with the two end faces of the blade 5, and the bottom surface of the limiting plate 11 is in contact with the top surface of the blade 5, which facilitates the limiting treatment of the two ends of the blade 5 and allows for the compression treatment of the top surface of the blade 5 to ensure the stability of the blade 5.

[0021] A limiting groove is provided at the position of the limiting post 10 corresponding to the tool holder 1. The limiting post 10 is slidably connected inside the limiting groove to ensure the stability of the movement of the mounting rod 8 and to prevent the mounting rod 8 from rotating.

[0022] One end face of the card plate 14 is in contact with one end face of the internal hexagonal screw 2. The fixing block 12 is convex to prevent the card plate 14 from falling off.

[0023] After the blade 5 is placed, the operator rotates the hexagonal screw 2, causing it to move downwards. This movement of the hexagonal screw 2 drives the rotating ring 7, which in turn moves the limiting plate 9 and the restricting plate 11. Once the blade 5 is fully fixed, the limiting plate 9 is positioned at both ends of the blade 5, and the restricting plate 11 is positioned at the top of the blade 5. This restricts the ends of the blade 5 and compresses the top, thus re-fixing the blade 5 and ensuring its stability during processing. After the blade 5 is fully fixed, the operator rotates the clamping plate 14, moving it into the hexagonal screw 2. This compresses the spring telescopic column 13, causing the end face of the clamping plate 14 to contact the inside of the hexagonal screw 2. This restricts the hexagonal screw 2, preventing it from loosening due to vibration during cutting and thus ensuring its usability.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A P-type cutting tool, comprising a handle (1), wherein an internal hexagonal screw (2) is threadedly connected to one end of the handle (1), a pressure rod (3) is provided inside the handle (1), a pad (4) is placed on one end of the handle (1) outside the pressure rod (3), and a blade (5) is placed on the top of the pad (4). Its features are: The blade (5) is provided with limiting plates (9) at both ends to limit the blade (5), and a limiting plate (11) is provided at the top of the blade (5) to squeeze the blade (5). The limiting plates (9) and (11) move with the internal hexagon screw (2).

2. A P-type cutting tool according to claim 1, characterized in that, The hexagonal screw (2) is fixedly connected to a fixing ring (6) on the outside. The fixing ring (6) is rotatably connected to a rotating ring (7) on the outside. One end of the rotating ring (7) is fitted with an installation rod (8) by a screw. Limiting plates (9) are welded to both ends of the installation rod (8). Limiting plates (11) are welded to both ends of the middle part of the installation rod (8).

3. A P-type cutting tool according to claim 2, characterized in that, A spring telescopic column (13) is installed at one end of the inner side of the rotating ring (7) by screws. A fixing block (12) is installed at the top of the spring telescopic column (13) by screws. A card plate (14) is rotatably connected to the outside of the fixing block (12).

4. A P-type cutting tool according to claim 2, characterized in that, The fixing ring (6) is T-shaped, and the rotating ring (7) has a corresponding groove at the position of the fixing ring (6). The outer side of the fixing ring (6) is in contact with the inner wall of the corresponding groove.

5. A P-type cutting tool according to claim 2, characterized in that, The end face of the limiting plate (9) is in contact with both ends of the blade (5), and the bottom surface of the limiting plate (11) is in contact with the top surface of the blade (5).

6. A P-type cutting tool according to claim 2, characterized in that, Limiting posts (10) are welded to both ends of the bottom of the mounting rod (8).

7. A P-type cutting tool according to claim 3, characterized in that, One end face of the card plate (14) is in contact with one end face of the internal hexagonal screw (2), and the fixing block (12) is convex.

8. A P-type cutting tool according to claim 6, characterized in that, The tool holder (1) has a limiting groove at the position of the limiting post (10), and the limiting post (10) is slidably connected inside the limiting groove.

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