A jig for a circular cutter

Abstract

This utility model discloses a circular cutting tool for a drilling machine, relating to the field of drilling machine tool technology. It includes a drilling machine connecting rod, a tool holder connected to the bottom side of the connecting rod, and a tool holder fixing screw installed on the bottom side of the connecting rod. A centering center is slidably installed at the bottom end of the connecting rod. A tool is mounted on the tool holder, the tool being made of cemented carbide, and the tool and tool holder are locked together by the tool fixing screw. This circular cutting tool allows the tool holder to slide laterally to adjust the cutting radius, and the tool height to control the cutting depth, adapting to workpieces of different sizes. It also enables rapid adjustment of cutting dimensions, improves processing accuracy, and achieves efficient, safe, and low-cost pipe surface treatment. Furthermore, the mechanical cutting process eliminates open flames and high temperatures, removing the risk of explosion from gas cutting, making it particularly suitable for flammable environments such as coal mines.

Description

Technical Field

[0001] This utility model relates to the field of drilling tool technology, specifically a drilling tool for cutting circles. Background Technology

[0002] Cutting circular workpieces is a common requirement in coal mine machinery repair workshops. Traditional methods use gas cutting, but this results in numerous burrs and low precision on the cut workpiece edges, requiring subsequent grinding with an angle grinder, which consumes a lot of time and manpower. In addition, gas cutting consumes oxygen and acetylene, which is costly and poses safety risks. Therefore, there is an urgent need for a new type of circular cutting tool to solve these problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, this utility model provides a circular cutting tool for drilling machines, which solves the technical problems mentioned in the background.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a circular cutting tool for a drilling machine, including a drilling machine connecting rod, a tool holder connected to the bottom side of the drilling machine connecting rod, and a tool holder fixing screw installed on the bottom side of the drilling machine connecting rod. A centering tip is slidably installed at the bottom end of the drilling machine connecting rod, and a cutting tool is installed on the tool holder. The cutting tool is made of cemented carbide, and the cutting tool and the tool holder are locked and fixed by the cutting tool fixing screw.

[0007] Preferably, the centering tip is positioned at the workpiece punch point to prevent the workpiece from shifting, and the centering tip has a built-in spring that is connected to the bottom of the drilling machine connecting rod through the spring, so that it can move with the feed of the tool.

[0008] Preferably, the tool holder is vertically positioned relative to the drill press connecting rod, and the tool holder can be adjusted laterally within the mounting groove at the bottom end of the drill press connecting rod.

[0009] Preferably, the cutting tool is installed in a mounting groove at one end of the tool holder, and the tool holder is a square rod.

[0010] Preferably, the cutting tool can be height-adjusted within a mounting groove at one end of the tool holder.

[0011] Preferably, the drill connecting rod is installed inside the drill spindle.

[0012] (III) Beneficial Effects

[0013] The beneficial effects of this utility model are as follows:

[0014] This type of drilling machine circular cutting tool has a tool holder that can slide laterally to adjust the cutting radius, and the tool height can be adjusted to control the cutting depth. It is suitable for workpieces of different sizes and can quickly adjust the cutting size to improve processing accuracy. It achieves efficient, safe and low-cost pipe surface treatment. At the same time, mechanical cutting is free of open flame and high temperature, eliminating the risk of gas cutting explosion, and is especially suitable for flammable environments such as coal mines. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model after installation.

[0017] In the diagram: 1. Drilling machine connecting rod, 2. Tool holder fixing screw, 3. Centering center, 4. Tool holder, 5. Tool, 6. Tool fixing screw. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments 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 protection scope of this utility model.

[0019] like Figure 1-2 As shown, this utility model provides a technical solution: a circular cutting tool for a drilling machine, including a drilling machine connecting rod 1, which is installed inside the drilling machine spindle. A tool holder 4 is abutted to the bottom side of the drilling machine connecting rod 1. The tool holder 4 is vertically arranged with the drilling machine connecting rod 1, and can slide laterally in the mounting groove at the bottom end of the drilling machine connecting rod 1. A tool holder fixing screw 2 is installed on the bottom side of the drilling machine connecting rod 1. A centering center 3 is slidably installed at the bottom end of the drilling machine connecting rod 1. The centering center 3 is positioned at the workpiece punch point, and a spring is built into the centering center 3. The bottom end of the connecting rod 1 of the drilling machine is internally connected and can move with the feed of the tool 5. When the drilling machine spindle is started to rotate, the feed is pressed down at a uniform speed. The centering center 3 retracts with the feed, the tool 5 cuts into the workpiece and completes the circumferential cutting. After the cutting is completed, the spindle is raised, the spring pushes the centering center 3 to return to its original position, and the workpiece is removed. The tool 5 is installed on the tool holder 4, and the tool 5 and the tool holder 4 are locked and fixed by the tool fixing screw 6. The tool 5 is installed in the mounting groove at one end of the tool holder 4, and the tool holder 4 is a square rod. The height of the tool 5 can be adjusted in the mounting groove at one end of the tool holder 4.

[0020] The operational steps for this application are as follows:

[0021] Insert the drill press connecting rod 1 into the drill press spindle and lock it in place. Mark the center punch point on the workpiece surface and secure it firmly to the worktable. Loosen the tool holder fixing screw 2, slide the tool holder 4 to the desired cutting radius position, and re-lock it. Loosen the tool fixing screw 6, adjust the extension height of the tool 5 in the tool holder mounting groove (to control the cutting depth), and lock the fixing screw 6. Move the drill press spindle down so that the centering center 3 presses into the workpiece center punch point (the built-in spring provides adaptive pressure).

[0022] Start the drilling machine spindle to rotate, press down the feed at a constant speed, the centering tip 3 retracts with the feed, the tool 5 cuts into the workpiece and completes the circumferential cutting, after the cutting is completed, raise the spindle, the spring pushes the centering tip 3 to reset, and the workpiece is taken out.

[0023] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; 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 or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drill press circle cutting tool characterized by: The system includes a drill press connecting rod (1), a tool bar (4) is connected to the bottom side of the drill press connecting rod (1), and a tool bar fixing screw (2) is installed on the bottom side of the drill press connecting rod (1). A centering tip (3) is slidably installed at the bottom end of the drill press connecting rod (1). A cutting tool (5) is installed on the tool bar (4), and the cutting tool (5) and the tool bar (4) are locked and fixed by a cutting tool fixing screw (6).

2. A cutter for a drill press according to claim 1, wherein: The centering tip (3) is positioned at the workpiece punch point, and the centering tip (3) has a built-in spring. It is connected to the bottom end of the drill press connecting rod (1) through the spring and can move with the feed of the tool (5).

3. The cutter of claim 1 wherein: The tool holder (4) is vertically positioned between the drill press connecting rod (1) and the tool holder (4) can be adjusted laterally within the mounting groove at the bottom of the drill press connecting rod (1).

4. The cutter of claim 1 wherein: The cutting tool (5) is installed in the mounting groove at one end of the tool holder (4), and the tool holder (4) is a square rod.

5. A cutter for a drill press according to claim 4, wherein: The cutting tool (5) can be height adjusted in the mounting groove at one end of the tool holder (4).

6. The circular cutting tool for a drill press as defined in claim 1, wherein: The drill connecting rod (1) is installed inside the drill spindle.

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