Precision cutting tool for large numerical control machine tool

Abstract

The utility model discloses a kind of precision cutting tools for large numerical control machine tool, including triangular tool body and tool holder, cutting edge part is arranged at three corners of the triangular tool body, and the middle part of one side of triangular tool body is provided with liquid storage groove, the surface of tool holder one side is sealed and covers in the liquid storage groove notch, and cooling liquid inlet and outlet hole channel port is communicated on the surface of tool holder one side, three extension side holes are provided in the inside of liquid storage groove.The utility model is different from prior art in that: by the extension side hole that liquid storage groove inside is additionally provided, ensure that cooling liquid flows to every cutting edge part region, greatly reduce cooling dead angle area;Meanwhile, the connecting place of tool holder and triangular tool body adopts double sealing design, it is favorable to the sealing of liquid storage groove, and cooperate cooling liquid inlet and outlet hole channel, provide flow path for subsequent cooling liquid input and outflow, and further improve the stability and sealing performance of overall structure.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool cutting tools, specifically a precision cutting tool for large CNC machine tools. Background Technology

[0002] Large CNC machine tools require high-precision cutting tools. The high temperatures generated during cutting cause the tool surface to soften rapidly, leading to increased wear and reduced lifespan. Existing precision cutting tools often rely on externally sprayed coolant for surface cooling, which is unsuitable for machining workpieces in non-humid environments. To address these technical shortcomings, this invention proposes a precision cutting tool for large CNC machine tools that utilizes a coolant reservoir on a triangular conductor, with double sealing via the tool holder to ensure coolant flow and cooling. Utility Model Content

[0003] The purpose of this invention is to provide a precision cutting tool for large CNC machine tools in order to solve the above-mentioned problems.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a precision cutting tool for a large CNC machine tool, comprising a triangular tool body and a tool holder, wherein cutting edges are provided at the three corners of the triangular tool body, and a liquid storage tank is provided in the middle of one side of the triangular tool body, and one side surface of the tool holder is sealed to cover the opening of the liquid storage tank, and the coolant inlet and outlet ports on one side surface of the tool holder are connected, and three extended side holes are provided inside the liquid storage tank.

[0005] Preferably, the surface around the opening of the liquid storage tank is provided with an annular groove, and the annular groove is in close contact with a sealing ring located on one side surface of the knife holder.

[0006] Preferably, the triangular cutter body and the cutter holder are fixedly connected to each other by bolts.

[0007] Preferably, the surface of the tool holder is provided with a leveling block, and one side of the leveling block abuts against one side wall of the triangular tool body.

[0008] Preferably, the tool holder surface has a connecting hole, and a sealing ring is installed around the connecting hole.

[0009] Preferably, the coolant inlet / outlet channels are connected to an external coolant delivery device.

[0010] Compared with the prior art, the advantages of this utility model are as follows: by adding an extended side hole inside the liquid storage tank, the coolant is ensured to flow to every cutting edge area, greatly reducing the cooling dead zone; at the same time, the connection between the tool holder and the triangular tool body adopts a double sealing design, which is conducive to sealing the liquid storage tank, and together with the coolant inlet and outlet channels, it provides a flow path for subsequent coolant input and output, and further improves the stability and sealing performance of the overall structure. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is an exploded view of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the triangular blade structure of this utility model.

[0015] In the figure: 1. Triangular cutter body; 110. Cutting edge; 120. Liquid reservoir; 121. Extended side hole; 130. Annular groove; 2. Tool holder; 210. Tool shank; 211. Coolant inlet / outlet channel; 220. Alignment block; 230. Sealing ring; 3. Sealing ring plate. Detailed Implementation

[0016] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-3 As shown, a precision cutting tool for a large CNC machine tool includes a triangular tool body 1 and a tool holder 2. The triangular tool body 1 has cutting edge portions 110 at each of its three corners, and a liquid storage tank 120 is provided in the middle of one side of the triangular tool body 1. The surface of one side of the tool holder 2 seals and covers the opening of the liquid storage tank 120, and the coolant inlet and outlet ports 211 on the surface of one side of the tool holder 2 are connected. The liquid storage tank 120 has three extended side holes 121 inside, and an annular groove 130 is provided around the opening of the liquid storage tank 120. The annular groove 130 is in close contact with a sealing ring 230 located on the surface of one side of the tool holder 2.

[0020] Furthermore, the triangular cutter body 1 and the cutter holder 2 are fixedly connected to each other by bolts. The surface of the cutter holder 2 is provided with a leveling block 220, and one side of the leveling block 220 abuts against one side wall of the triangular cutter body 1, which can both fix the triangular cutter body 1 and prevent the triangular cutter body 1 from laterally shaking.

[0021] Furthermore, the tool holder 2 has a connecting hole on its surface, and a sealing ring 3 is installed around the connecting hole. The sealing ring 3 is in close contact with the end face of the protruding column located in the middle of the liquid storage tank 120 to prevent coolant leakage.

[0022] Furthermore, the coolant inlet / outlet channel 211 is connected to an external coolant delivery device.

[0023] Compared with the existing technology, the difference is that: an extended side hole 121 is added inside the liquid storage tank 120 to ensure that the coolant flows to each cutting edge 110 area, greatly reducing the cooling dead zone area; at the same time, the connection between the tool holder 2 and the triangular tool body 1 adopts a double sealing design, which is conducive to sealing the liquid storage tank 120 and, together with the coolant inlet and outlet channels 211, provides a flow path for subsequent coolant input and output; the sealing ring 230 and the sealing ring plate 3 respectively make tight contact with the outer edge and the middle of the liquid storage tank 120, further improving the stability and sealing performance of the overall structure.

[0024] 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 the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A precision cutting tool for use in a large numerically controlled machine tool, characterised in that: The tool includes a triangular cutter body (1) and a tool holder (2). The three corners of the triangular cutter body (1) are provided with cutting edge parts (110), and a liquid storage tank (120) is opened in the middle of one side of the triangular cutter body (1). The surface of one side of the tool holder (2) is sealed and covered at the opening of the liquid storage tank (120), and the coolant inlet and outlet port (211) on the surface of one side of the tool holder (2) is connected. The liquid storage tank (120) is provided with three extended side holes (121).

2. The precision cutting tool for large CNC machine tools according to claim 1, characterized in that: The surface around the opening of the liquid storage tank (120) is provided with an annular groove (130), and the annular groove (130) is in close contact with the sealing ring (230) located on one side of the knife holder (2).

3. The precision cutting tool for large CNC machine tools according to claim 1, characterized in that: The triangular cutter body (1) and the cutter holder (2) are fixedly connected to each other by bolts.

4. The precision cutting tool for large CNC machine tools according to claim 1, characterized in that: The surface of the tool holder (2) is provided with a leveling block (220), and one side of the leveling block (220) abuts against the side wall of the triangular tool body (1).

5. The precision cutting tool for large CNC machine tools according to claim 1, characterized in that: The tool holder (2) has a connecting hole on its surface, and a sealing ring (3) is installed around the connecting hole.

6. The precision cutting tool for large CNC machine tools according to claim 1, characterized in that: The coolant inlet / outlet channel (211) is connected to an external coolant delivery device.

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