Jacking drill for machining plates
By designing a drill tool that integrates set material and central drilling step holes, using alloy steel and cemented carbide materials, combined with internal and external cooling methods, the existing set material drill and step drill are solved, and multi-process compounding is achieved, and processing efficiency and quality are improved.
Patent Information
- Application Number
- CN202421738150.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-22
AI Technical Summary
During the board processing process, the switching of existing nesting drills and step drills is inconvenient, which increases the cost of use, and is difficult to achieve multi-process compounding, reducing processing efficiency.
A drill tool with integrated set and center drilling step holes is designed, using alloy steel as the tool body material and cemented carbide as the blade material. The five blades are evenly welded on the spiral chip drain, and a cooling hole is set at the rear end of the tool body. The overall method is to combine internal and external cooling. The step drill adopts a 90° drill tip and has its own centering function.
Multi-process compounding is achieved, processing efficiency is improved, usage cost is reduced, and processing quality and tool life is ensured.
Smart Images
Figure CN222790706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a drilling tool, in particular to a drilling tool for processing plates. Background Art
[0002] A trepanning drill is a hole processing tool that can trepan a rod into the inner hole being drilled. Conventional trepanning drills are made of an integral high-speed steel structure, which is costly and has a simple structure. Step drills are mainly used for drilling. One drill bit can replace multiple drill bits to process holes of different diameters as needed. In the process of plate processing, trepanning drills and step drills are usually required separately, which is not only inconvenient to use when switching between them, but also increases the cost of use. Therefore, a drill tool that integrates a trepanning drill and a step drill is designed to achieve multi-process compounding, which can improve processing efficiency and save cost of use. Summary of the invention
[0003] The utility model aims to provide a trepanning drill for processing plates, which combines trepanning and center drilling step holes, thereby saving costs and realizing multi-process compounding, thereby greatly improving processing efficiency and processing economy.
[0004] The technical solution adopted by the utility model is as follows: a trepanning drill for processing plates, comprising a trepanning drill body and a blade arranged on the trepanning drill body, the trepanning drill body is made of alloy steel, the blade is made of cemented carbide, the blade is welded to the front end of the trepanning drill body, and also comprises a step drill, the step drill sleeve is arranged in the trepanning drill body and is coaxially arranged with the trepanning drill body, and the step drill is clamped on the trepanning drill body through a side-fixed handle and a headless screw.
[0005] Furthermore, the number of the blades is five, and the five blades are evenly welded to the upper end of the spiral chip groove of the drill body.
[0006] Furthermore, silver soldering is used between the blade and the drill body.
[0007] Furthermore, a cooling hole is arranged on the rear end surface of the drill body.
[0008] Furthermore, the step drill is made of cemented carbide as a whole, and the drill tip of the step drill is 90°.
[0009] The utility model adopts a nesting integrated step drill to combine multiple processes, greatly improving the processing efficiency under the premise of ensuring processing quality. The tool body is made of alloy steel, which can both ensure strength and reduce costs. The carbide blade is used, which is lighter and more efficient than conventional high-speed steel nesting drills. The 5-blade structure is adopted to ensure smooth cutting and tool strength and processing efficiency. Cooling holes are made on the rear end face of the tool body. When the nesting drill is processed, external cooling cannot cool the cutting edge inside the tool, which may cause the tool temperature to be too high and thus affect the tool life. Therefore, a combination of internal and external cooling is adopted to fully cool the tool to ensure cooling effect, processing quality and tool life. The blade is silver-welded, and the welding quality is reliable and the appearance quality is good. The step drill tip adopts 90°, has a self-centering function and has good processing hole quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0011] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.
[0012] Figure 3 It is a schematic diagram of the front side viewing angle of the present utility model. DETAILED DESCRIPTION
[0013] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and carefully below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.
[0014] like Figure 1-Figure 3 As shown, this embodiment provides a trepanning drill for processing plates, including a trepanning drill body 1 and a blade 2 arranged on the trepanning drill body 1. The trepanning drill body 1 is made of alloy steel, and the blade 2 is made of cemented carbide. The blade 2 is welded to the front end of the trepanning drill body 1. The cutter body is made of alloy steel, which can ensure strength and reduce costs. The cemented carbide blade has a lighter cutting speed and higher processing efficiency than conventional high-speed steel trepanning drills.
[0015] In this embodiment, the number of blades 2 is five, and the five blades 2 are evenly welded to the upper end of the spiral chip groove of the trepanning drill body 1. The five-blade structure can ensure both stable cutting and tool strength and processing efficiency. Silver welding is used between the blades 2 and the trepanning drill body 1, and the welding quality is reliable and the appearance quality is good.
[0016] A cooling hole 5 is provided on the rear end face of the drill body 1. When the drill is being processed, external cooling cannot cool the cutting edge inside the tool, which may cause the tool temperature to be too high and thus affect the tool life. Therefore, a combination of internal and external cooling is used to fully cool the tool to ensure cooling effect, processing quality and tool life.
[0017] The trepanning drill for processing plates of the utility model further comprises a step drill 3, which is sleeved in the trepanning drill cutter body 1 and coaxially arranged with the trepanning drill cutter body 1, and the step drill 3 is clamped on the trepanning drill cutter body 1 through a side-fixed shank and a headless screw 4. The utility model adopts a trepanning integrated step drill, which combines multiple processes together, greatly improving the processing efficiency while ensuring the processing quality.
[0018] In this embodiment, the step drill 3 is made of cemented carbide, which has sharp cutting and high processing quality. The drill tip of the step drill 3 is 90°, has a self-centering function and has good processing hole quality.
[0019] With the help of the teachings in the foregoing description and the related drawings, a person skilled in the art will be able to think of many modifications and other embodiments of the present invention. Therefore, it is to be understood that the present invention is not limited to the specific embodiments disclosed, and modifications and other embodiments are considered to be included within the scope of the appended claims. Although specific terms are used herein, they are used only in a general and descriptive sense and not for limitation.
Claims
1. A trepanning drill for processing a plate, comprising a trepanning drill body (1) and a blade (2) arranged on the trepanning drill body (1), characterized in that: The material of the trepanning drill body (1) is alloy steel, the material of the blade (2) is cemented carbide, the blade (2) is welded to the front end of the trepanning drill body (1), and further comprises a step drill (3), the step drill (3) is sleeved in the trepanning drill body (1) and is coaxially arranged with the trepanning drill body (1), and the step drill (3) is clamped on the trepanning drill body (1) by a side-fixed shank and a headless screw (4).
2. A drill for processing a plate material according to claim 1, characterized in that: The number of the blades (2) is five, and the five blades (2) are evenly welded to the upper end of the spiral chip removal groove of the trepanning drill cutter body (1).
3. A drill for processing a plate as claimed in claim 1, characterized in that: Silver soldering is used between the blade (2) and the drill body (1).
4. A drill for processing a plate material according to claim 1, characterized in that: A cooling hole (5) is provided on the rear end surface of the trepanning drill body (1).
5. A drill for processing a plate as claimed in claim 1, characterized in that: The step drill (3) is made entirely of hard alloy, and the drill tip of the step drill (3) is 90°.