Cutter with adjustable cutter bar

Abstract

The cutter with the adjustable cutter bar comprises a cutter handle, the cutter bar and a cutter body, the cutter body is installed at one end of the cutter bar, an installation groove is formed in the cutter handle, the cutter bar is inserted into the installation groove, a plurality of screw holes communicated with the installation groove are formed in the cutter handle, fastening screw rods are inserted into the screw holes in a threaded mode, and the fastening screw rods are connected with the cutter bar. According to the cutter bar and the cutter handle which are arranged in a split mode, the length of the cutter can be adjusted, the fixing structure has a good limiting effect, and the stability after fixing is improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool related products, specifically a cutting tool with an adjustable shank. Background Technology

[0002] Numerical control (NC) machining refers to a process of machining parts on CNC machine tools. While the process specifications of CNC machining are generally consistent with those of traditional machine tool machining, significant changes have occurred. It is a machining method that uses digital information to control the displacement of parts and tools. It is an effective way to solve problems such as diverse parts, small batches, complex shapes, and high precision requirements, and to achieve high-efficiency and automated machining. During the machining process, it is often necessary to drill tapered grooves on the workpiece according to the machining requirements. Therefore, this machining process is often achieved by using tapered milling cutters.

[0003] However, existing traditional cutting tools are not convenient for adjusting the tool length, and the fixing structure of the tool holder is relatively simple, with low stability and other defects. Utility Model Content

[0004] The purpose of this invention is to provide a cutting tool with an adjustable shank to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable tool holder, comprising a tool holder, a tool holder, and a tool, wherein the tool is mounted on one end of the tool holder, the tool holder has a mounting groove, the tool holder is inserted into the mounting groove, the tool holder has multiple threaded holes communicating with the mounting groove, a fastening screw is threaded into the threaded hole, a limiting screw is inserted into one end of the fastening screw, and the tool holder has multiple threaded grooves corresponding to the limiting screw.

[0006] Preferably, one end of the tool handle is fixedly connected to a bracket, a positioning screw is inserted into the bracket, one end of the positioning screw passes through the tool handle and is fixedly connected to the tool handle, and a positioning nut is threaded onto the side wall of the positioning screw inside the bracket.

[0007] Preferably, the tool holder has scale lines on its side wall.

[0008] Preferably, the fastening screw is provided with a receiving groove, and the limiting screw is disposed in the receiving groove.

[0009] Preferably, both the fastening screw and the limiting screw are Phillips head screws.

[0010] Preferably, the multiple screw grooves on the tool holder are arranged in a ring array.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This adjustable tool holder allows for length adjustment by inserting the tool holder into a mounting groove on the tool shank. The tool holder's position within the shank is adjusted to change its length. A tightening screw is then engaged within a threaded hole on the shank, pressing the tool holder into the mounting groove. Finally, a limiting screw on the tightening screw is screwed into a corresponding threaded groove on the shank to secure the screw, preventing it from loosening due to self-rotation. This invention features a separate tool holder and shank design, allowing for length adjustment and providing a good limiting effect, increasing stability after installation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an adjustable tool holder according to the present invention;

[0014] Figure 2 This is a schematic diagram of the fastening screw of the tool with an adjustable tool holder according to the present invention;

[0015] Figure 3 This is a schematic diagram of the limiting screw of the tool in an adjustable tool holder according to this utility model.

[0016] In the diagram: 1. Tool holder; 2. Tool shank; 3. Tool; 4. Fastening screw; 5. Limit screw; 6. Bracket; 7. Positioning screw; 8. Positioning nut; 9. Scale line. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-3 This utility model provides an embodiment of a tool 3 with an adjustable tool holder 2, comprising a tool holder 1, a tool holder 2, and a tool 3. The tool 3 is installed at one end of the tool holder 2. The tool holder 1 has a mounting groove, and the tool holder 2 is inserted into the mounting groove. The tool holder 1 has multiple screw holes communicating with the mounting groove. A fastening screw 4 is threaded into the screw hole, and a limiting screw 5 is inserted into one end of the fastening screw 4. The tool holder 1 has multiple screw grooves corresponding to the limiting screw 5. Specifically, the tool holder 2 with the tool 3 is inserted into the mounting groove on the tool holder 1. The length of the tool holder 2 is adjusted by adjusting its position in the tool holder 1. Then, the tool holder 2 is fixed in the mounting groove by screwing the fastening screw 4 into the screw hole on the tool holder 1. Finally, the fastening screw 4 is fixed by screwing the limiting screw 5 on the fastening screw 4 into the corresponding screw groove on the tool holder 1 to prevent it from loosening due to self-rotation.

[0021] In this embodiment, a bracket 6 is fixedly connected to one end of the tool handle 1. A positioning screw 7 is inserted into the bracket 6. One end of the positioning screw 7 passes through the tool handle 1 and is fixedly connected to the tool rod 2. A positioning nut 8 is threaded onto the side wall of the positioning screw 7 inside the bracket 6. By screwing the positioning nut 8 against the inner wall of the bracket 6, the tool rod 2 can be limited. A scale line 9 is provided on the side wall of the tool rod 2 for easy observation and adjustment of the length. A receiving groove is provided on the fastening screw 4, and the limiting screw 5 is located in the receiving groove. Both the fastening screw 4 and the limiting screw 5 are crosshead screws. The multiple screw grooves on the tool handle 1 are arranged in a circular array.

[0022] The working principle of the adjustable tool holder 2 and the tool 3 is described in detail below: First, the tool holder 2 with the tool 3 installed is inserted into the mounting groove on the tool holder 1. The length of the tool holder 2 is adjusted by adjusting its position in the tool holder 1. Then, the tool holder 2 is fixed in the mounting groove by moving the fastening screw 4 in the screw hole on the tool holder 1. Finally, the fastening screw 4 is fixed by screwing the limiting screw 5 on the fastening screw 4 into the corresponding screw groove on the tool holder 1 to prevent it from loosening by self-rotation.

[0023] 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.

Claims

1. A cutting tool (3) with an adjustable tool holder (2), comprising a tool holder (1), a tool holder (2), and a cutting tool (3), characterized in that: The cutting tool (3) is installed at one end of the tool holder (2). The tool handle (1) is provided with a mounting groove. The tool holder (2) is inserted into the mounting groove. The tool handle (1) is provided with multiple screw holes communicating with the mounting groove. A fastening screw (4) is threaded into the screw hole. A limiting screw (5) is inserted into one end of the fastening screw (4). The tool handle (1) is provided with multiple screw grooves corresponding to the limiting screw (5).

2. The cutting tool (3) with an adjustable tool holder (2) according to claim 1, characterized in that: One end of the handle (1) is fixedly connected to a bracket (6), and a positioning screw (7) is inserted on the bracket (6). One end of the positioning screw (7) passes through the handle (1) and is fixedly connected to the handle (2). A positioning nut (8) is threaded onto the side wall of the positioning screw (7) inside the bracket (6).

3. The cutting tool (3) with an adjustable tool holder (2) according to claim 1, characterized in that: The tool holder (2) has scale lines (9) on its side wall.

4. The cutting tool (3) with an adjustable tool holder (2) according to claim 1, characterized in that: The fastening screw (4) is provided with a receiving groove, and the limiting screw (5) is located in the receiving groove.

5. The cutting tool (3) with an adjustable tool holder (2) according to claim 1, characterized in that: Both the fastening screw (4) and the limiting screw (5) are Phillips head screws.

6. The cutting tool (3) with an adjustable tool holder (2) according to claim 1, characterized in that: The multiple screw grooves on the tool holder (1) are arranged in a ring array.

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