A cylinder boring tool
By setting mounting slots and adjustment components on the cylinder bore boring tool, precise position control of the insert is achieved, solving the problems of vibration and surface finish during the machining process. This improves machining accuracy and cutting efficiency, and it is highly adaptable, suitable for various hole diameters and depths, and is suitable for mass production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN ZHONG TIAN NC TOOLS
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-21
AI Technical Summary
Existing cylinder bore boring tools are prone to problems such as vibration, poor surface finish, short tool life, and poor roundness during machining, making it difficult to meet the needs of high precision and mass production.
The boring bar has a mounting groove on the tool holder, which contains a tool holder and a cutting insert. It is clamped by a pressure plate and a double-ended screw. Combined with axial and radial adjustment components, it can achieve precise position control of the cutting insert. It is designed with three sets of incremental cutting structures.
It improves machining accuracy, has strong adaptability, is suitable for different hole diameters and depths, improves cutting efficiency and reusability, and is suitable for mass production.
Smart Images
Figure CN224526024U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, and in particular to a cylinder bore boring tool. Background Technology
[0002] Cylinder bore boring tools are used in industrial applications where high-precision machining is required. As automobiles, ships, and aero engines develop towards higher efficiency and lower emissions, the machining accuracy (roundness, cylindricity, surface roughness) of cylinder blocks (especially cylinder bores) directly affects combustion efficiency, sealing performance, and lifespan. Existing cylinder bore boring tools on the market are prone to issues such as chattering, poor surface finish, short insert life, poor roundness, and poor positional accuracy after machining, severely impacting subsequent honing. This is particularly true in deep hole machining, where chattering and misalignment are common, failing to meet the demands of high-precision and mass production. Utility Model Content
[0003] The purpose of this invention is to provide a cylinder bore boring tool to solve the above-mentioned problems.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] This utility model discloses a cylinder bore boring tool, including a boring tool holder. The boring tool holder has several mounting slots, and a tool clip and a cutting blade are provided in the mounting slots. The tool clip and the cutting blade are pressed into the mounting slots by a pressure plate and a double-ended screw. The axial position of the tool clip and the cutting blade is controlled by an axial adjustment component, and the radial position of the tool clip and the cutting blade is controlled by a radial adjustment component.
[0006] Furthermore, the boring bar holder is provided with three sets of cutting blades, and the three sets of cutting blades perform incremental cutting.
[0007] Furthermore, the axial adjustment assembly includes an axial adjustment set screw, one end of which is connected to the boring tool holder and the other end rests on the tool holder.
[0008] Furthermore, the radial adjustment assembly includes a radial adjustment set screw and an adjustment wedge. Both the radial adjustment set screw and the adjustment wedge are placed in a through hole opened on the outer wall of the boring tool holder. The radial adjustment set screw is threaded into the through hole, one end of the radial adjustment set screw abuts against the adjustment wedge, and the other end of the adjustment wedge abuts against the tool holder.
[0009] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0010] This utility model has high machining precision. The blade adopts a pressure plate locking mechanism and a three-blade progressive cutting. The machining allowance of the last blade is very small, which is basically a finishing function. When the blade is retracted, the blade does not contact the hole and there will be no retraction marks. Therefore, it performs very well in high-precision holes.
[0011] Highly adaptable and suitable for processing various hole diameters and depths;
[0012] Good adjustability: The boring tool is designed with an adjustable structure, which can adjust the size according to the processing requirements, improving the flexibility of use and the reusability;
[0013] High efficiency: The three-flute boring bar design can improve cutting efficiency and is suitable for mass production. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] Figure 1 This is the main view of the cylinder bore boring tool of this utility model;
[0016] Figure 2 This is a side view of the cylinder bore boring tool of this utility model;
[0017] Figure 3 This is a schematic diagram of the blade edge;
[0018] Explanation of reference numerals in the attached diagram: 1. Boring tool holder; 2. Tool clip; 3. Blade; 4. Pressure plate; 5. Double-ended screw; 6. Axial adjustment set screw. Detailed Implementation
[0019] like Figure 1-3 As shown, a cylinder bore boring tool includes a boring tool holder 1. The boring tool holder 1 has several mounting slots. A tool clip 2 and a cutting blade 3 are provided in the mounting slots. The tool clip 2 and the cutting blade 3 are pressed into the mounting slots by a pressure plate 4 and a double-ended screw 5. The axial position of the tool clip 2 and the cutting blade 3 is controlled by an axial adjustment component, and the radial position of the tool clip 2 and the cutting blade 3 is controlled by a radial adjustment component.
[0020] The boring bar holder 1 is provided with three sets of blades 3. The three sets of blades 3 perform incremental cutting, resulting in high machining accuracy. The blades adopt a pressure plate locking mechanism and three-blade incremental cutting. The machining allowance of the last blade is very small, which is basically a finishing function. When the tool is retracted, the cutting edge does not contact the hole, so there will be no tool retraction marks. Therefore, it performs very well in high-precision holes.
[0021] The axial adjustment assembly includes an axial adjustment set screw 6, one end of which is connected to the boring tool holder 1, and the other end rests on the tool holder 2.
[0022] The radial adjustment assembly includes a radial adjustment set screw and an adjustment wedge. Both the radial adjustment set screw and the adjustment wedge are placed in a through hole on the outer wall of the boring tool holder 1. The radial adjustment set screw is threaded into the through hole. One end of the radial adjustment set screw abuts against the adjustment wedge, and the other end of the adjustment wedge abuts against the tool holder 2.
[0023] With the two adjustable structures of axial adjustment component and radial adjustment component, the size can be adjusted according to the processing requirements, which improves the flexibility of use and the reusability.
[0024] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A cylinder bore boring tool, characterized in that: The tool includes a boring bar holder (1), which has several mounting slots. A tool holder (2) and a cutting blade (3) are provided in the mounting slots. The tool holder (2) and the cutting blade (3) are pressed into the mounting slots by a pressure plate (4) and a double-ended screw (5). The axial position of the tool holder (2) and the cutting blade (3) is controlled by an axial adjustment component, and the radial position of the tool holder (2) and the cutting blade (3) is controlled by a radial adjustment component.
2. The cylinder bore boring tool according to claim 1, characterized in that: The boring bar holder (1) is provided with three sets of blades (3), and the three sets of blades (3) perform incremental cutting.
3. The cylinder bore boring tool according to claim 1, characterized in that: The axial adjustment assembly includes an axial adjustment set screw (6), one end of which is connected to the boring tool holder (1), and the other end rests on the tool holder (2).
4. The cylinder bore boring tool according to claim 1, characterized in that: The radial adjustment assembly includes a radial adjustment set screw and an adjustment wedge. Both the radial adjustment set screw and the adjustment wedge are placed in a through hole on the outer wall of the boring tool holder (1). The radial adjustment set screw is threaded into the through hole. One end of the radial adjustment set screw abuts against the adjustment wedge, and the other end of the adjustment wedge abuts against the tool holder (2).