A thick-walled pipe tapping cutter

Abstract

The utility model provides a kind of thick-walled pipe trepanning cutter, including main cutting head, the upper surface of main cutting head is fixed with cutter tooth away from one end of middle part, the middle part of main cutting head is fixed with center rod, the bottom end below main cutting head is fixed with connecting cylinder.The utility model is cut in the process of cutting and will be discharged through its internal discharge port and discharge hole, avoid the accumulation of debris in the trepanning place to increase the cutting resistance of cutter and affect the normal use of cutter, and then make the cutter not damaged when thick-walled pipe trepanning operation, trepanning efficiency is higher, further improve the service life of cutter.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a tool for drilling holes in thick-walled tubes. Background Technology

[0002] Drilling tools are used to machine holes in various materials. They are usually installed on drilling machines. In live drilling operations, it is often necessary to drill holes in thick-walled pipes or blind plates. When using conventional tools, the cutting debris often cannot be removed when drilling to one-third of the way through, causing the tool to jam or break teeth. Damaging the tool makes it impossible to continue drilling operations, which seriously affects the efficiency of live drilling operations. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a thick-walled tube drilling tool.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A thick-walled tube drilling tool includes a main cutting head, with cutting teeth fixed at one end of the upper surface of the main cutting head away from its center, a central rod fixed at the center of the main cutting head, and a connecting cylinder fixed below the bottom end of the main cutting head.

[0006] Preferably, the main cutter head has an inner outer opening with a slag discharge port, and the discharge port of the slag discharge port is located below the outer wall of the main cutter head.

[0007] Preferably, the main cutter head has an internal opening with a slag discharge hole, which is located between the discharge port of the slag discharge port and the top of the main cutter head.

[0008] Preferably, the opening above the main cutter head is provided with a "volume groove", and the "volume groove" is disposed between adjacent cutter teeth.

[0009] This utility model provides a tool for drilling holes in thick-walled pipes, which has the following advantages: During the cutting process driven by the drill, the cut-off debris will be discharged from the hole through the internal slag discharge port, avoiding the accumulation of debris in the hole, which would increase the cutting resistance of the tool and affect its normal use. This ensures that the tool will not be damaged during the drilling operation of thick-walled pipes, and further improves the service life of the tool. Attached Figure Description

[0010] Figure 1 This is a front view of the overall structure of this utility model;

[0011] Figure 2 This is a top view of the overall structure of this utility model;

[0012] Figure 3This is a schematic diagram of the slag discharge port being closed in this utility model;

[0013] Legend:

[0014] Main cutter head 1, cutter teeth 101, center rod 102, connecting cylinder 2. Detailed Implementation

[0015] Example 1, referring to Figure 1-3 A thick-walled tube drilling tool includes a main cutter head 1, with a cutting tooth 101 fixed at one end of the upper surface of the main cutter head 1 away from its middle part, a central rod 102 fixed at the middle part of the main cutter head 1, and a connecting cylinder 2 fixed below the bottom end of the main cutter head 1.

[0016] The main cutter head 1 has a slag discharge port on its inner and outer sides, and the discharge port of the slag discharge port is located below the outer wall of the main cutter head 1.

[0017] The main cutter head 1 has an internal opening with a slag discharge hole, which is located between the discharge port of the slag discharge port and the top of the main cutter head 1.

[0018] The center rod 102 serves as an auxiliary positioning tool for the drilling position;

[0019] During the cutting process, the cutting debris is discharged into the slag discharge port and slag discharge hole, which prevents the debris from accumulating in the opening of the object, increasing the cutting resistance of the tool and affecting its normal use. This ensures that the tool will not be damaged when drilling holes in thick-walled pipes, and further improves the service life of the tool.

[0020] Example 2 differs from Example 1 in that, in this example, the opening above the main cutter head 1 is provided with a "volume groove", and the "volume groove" is located between adjacent cutter teeth 101;

[0021] The volumetric groove improves chip removal during the cutting process, preventing chips from accumulating at the openings of the object and affecting the normal cutting operation of the tool.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A thick-walled tube opening cutter comprising a main head (1), characterized in that, The upper surface of the main cutter head (1) is fixed with a cutting tooth (101) at one end away from the middle, the middle of the main cutter head (1) is fixed with a central rod (102), and the bottom of the main cutter head (1) is fixed with a connecting cylinder (2).

2. The thick walled tube trepanning tool according to claim 1, wherein, The main cutter head (1) has an opening on its inner outer side for a slag discharge port, and the discharge port of the slag discharge port is located below the outer wall of the main cutter head (1).

3. The thick walled tube trepanning tool according to claim 1 wherein, The main cutter head (1) has an internal opening with a slag discharge hole, which is located between the discharge port of the slag discharge port and the top of the main cutter head (1).

4. The thick walled tube trepanning tool according to Claim 1 wherein, The main cutter head (1) has an opening above it with a "volume groove" which is located between adjacent cutter teeth (101).

Images