Quick-change type drilling tool

Abstract

The utility model discloses a quick-change type drilling tool which comprises a drill rod and a tool bar handle, the drill rod and the tool bar handle are integrally formed, a blade is arranged at the end of the drill rod, a mounting groove used in cooperation with the blade is formed in the end of the drill rod, and V-shaped positioning faces are arranged on the two sides of the mounting groove. And the blade is detachably mounted in the mounting groove through a locking mechanism. The utility model relates to the technical field of drilling tools. According to the quick-change type drilling tool, through the arrangement of the locking mechanism, the blade can be conveniently and quickly disassembled and assembled and can be independently replaced, overall replacement when the drill rod is damaged is avoided, the cost is effectively saved, the blade is arranged backwards, the spiral angle is gradually reduced, the strength of the drill rod is directly improved, material improvement is not needed, and the practicability is high. And through the arrangement of the water outlet holes, the cooling and chip removal functions of the cutter can be improved.

Description

Technical Field

[0001] This utility model relates to the field of drilling tool technology, specifically a quick-change drilling tool. Background Technology

[0002] In the field of machining technology, drilling tools are required when machining deep holes or through holes with special surface roughness requirements. Currently, the commonly used drilling tools are three types: shovel drills, gun drills, and twist drills.

[0003] Existing drilling tools generally use an integral design for the drill rod and cutting tool. When the cutting tool is damaged, the entire drill rod needs to be replaced, which results in relatively high operating costs. Furthermore, the strength of existing drill rods is generally improved by changing the material, which also increases costs. Therefore, this utility model proposes a quick-change drilling tool to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-change drilling tool, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-change drilling tool, including a drill rod and a tool holder, wherein the drill rod and the tool holder are integrally formed, and the end of the drill rod is provided with a cutting blade, and the end of the drill rod is provided with a mounting groove for use with the cutting blade, and both sides of the mounting groove are provided with V-shaped positioning surfaces, and the cutting blade is detachably installed inside the mounting groove through a locking mechanism.

[0006] Preferably, the locking mechanism includes a locking hole on the drill rod, an annular screw sleeve is provided on the inner wall of the locking hole, and a locking screw is provided inside the locking hole.

[0007] Preferably, the end of the drill rod has a pre-set elastic slit.

[0008] Preferably, the elastic slit allows the drill pipe end to undergo elastic deformation.

[0009] Preferably, the surface of the drill rod is provided with a spiral chip removal groove.

[0010] Preferably, the drill rod is provided with cooling water holes.

[0011] Beneficial effects

[0012] This invention provides a quick-change drilling tool. Compared with the prior art, it has the following advantages:

[0013] This quick-change drilling tool, with its locking mechanism, allows for rapid disassembly and assembly of the cutting inserts. Individual inserts can be replaced, avoiding the need for complete replacement when the drill rod is damaged, thus effectively saving costs. By positioning the inserts rearward and gradually decreasing the helix angle, the strength of the drill rod is directly improved without the need for material modifications. The water outlet enhances the tool's cooling and chip removal capabilities. Attached Figure Description

[0014] Figure 1 This is a planar dissection diagram of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the blade mounting structure of this utility model;

[0016] Figure 3 This is a three-dimensional schematic diagram of a partial structure of the drill pipe of this utility model.

[0017] In the diagram: 1-Drill rod, 2-Tool holder, 3-Insert blade, 4-Mounting groove, 5-V-shaped positioning surface, 6-Locking mechanism, 61-Locking hole, 62-Annular screw sleeve, 63-Locking screw, 7-Elastic slit, 8-Helical chip removal groove, 9-Cooling water hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a quick-change drilling tool, including a drill rod 1 and a tool holder 2. The drill rod 1 and the tool holder 2 are integrally formed. The end of the drill rod 1 is provided with a blade 3. The end of the drill rod 1 is provided with a mounting groove 4 for cooperating with the blade 3. V-shaped positioning surfaces 5 are provided on both sides of the mounting groove 4. The two V-shaped positioning surfaces 5 are symmetrically arranged to ensure that the blade 3 is concentric with the drill rod 1 after installation. The blade 3 is detachably installed inside the mounting groove 4 through a locking mechanism 6.

[0020] In this embodiment, the locking mechanism 6 includes a locking hole 61 on the drill rod 1, an annular screw sleeve 62 on the inner wall of the locking hole 61, and a locking screw 63 inside the locking hole 61. The locking screw 63 works in conjunction with the annular screw sleeve 62. When the locking screw 63 is rotated in the reverse direction, it generates a force with the annular screw sleeve 62, causing the preset elastic opening to widen, allowing the blade 3 to be placed into the mounting groove 4.

[0021] In this embodiment, the end of the drill rod 1 is pre-set with an elastic slit 7. The elastic slit 7 allows the end of the drill rod 1 to undergo elastic deformation. When the pre-set elastic slit 7 is unfolded, it facilitates the insertion of the cutting tool 3. Even if the V-shaped positioning surface 5 is slightly worn, the force of the locking screw 63 can still ensure that the drill rod 1 has sufficient clamping force on the cutting tool 3, preventing the cutting tool 3 from loosening or falling off during use. The surface of the drill rod 1 is provided with a spiral chip removal groove 8. By adopting a multi-helix angle design for the drill rod 1, the helix angle gradually decreases from the position of the cutting tool 3 to the rear. The rigidity of the drill rod 1 gradually increases as the helix angle decreases.

[0022] In this embodiment, the drill rod 1 is provided with a cooling water hole 9, which is used for cooling and chip removal.

[0023] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 quick-change drilling tool, comprising a drill rod (1) and a tool holder (2), wherein the drill rod (1) and the tool holder (2) are integrally formed, characterized in that: The drill rod (1) is provided with a blade (3) at its end. The drill rod (1) is provided with a mounting groove (4) for use with the blade (3). V-shaped positioning surfaces (5) are provided on both sides of the mounting groove (4). The blade (3) is detachably installed inside the mounting groove (4) by a locking mechanism (6).

2. A quick-change drilling tool according to claim 1, characterized in that: The locking mechanism (6) includes a locking hole (61) on the drill rod (1), an annular screw sleeve (62) is provided on the inner wall of the locking hole (61), and a locking screw (63) is provided inside the locking hole (61).

3. A quick-change drilling tool according to claim 1, characterized in that: The drill rod (1) has a pre-set elastic slit (7) at its end.

4. A quick-change drilling tool according to claim 3, characterized in that: The elastic slit (7) allows the end of the drill rod (1) to undergo elastic deformation.

5. A quick-change drilling tool according to claim 1, characterized in that: The surface of the drill rod (1) is provided with a spiral chip removal groove (8).

6. A quick-change drilling tool according to claim 1, characterized in that: The drill rod (1) is provided with cooling water holes (9).

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