External diameter adjustable general boring cutter for machining cylinder hole of large diesel engine body
By designing an adjustable outer diameter universal boring tool, adjusting the head length is adjusted using adjustment and fastening mechanisms, the problem of frequent boring tool replacement is solved, processing efficiency and accuracy are improved, and cost is reduced.
Patent Information
- Application Number
- CN202422157887.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-04
AI Technical Summary
In the prior art, the boring tool needs to be frequently replaced when processing cylinder bores of large diesel engines, resulting in high costs, long cycles and easy installation errors, affecting the processing accuracy.
A universal boring tool with adjustable outer diameter is designed. By installing an adjustment mechanism and a fastening mechanism on the toolbar, the toolbar protrusion length can be adjusted, avoiding the replacement of different models of toolbars. A square toolbar is used to reduce weight and improve dynamic balance.
The processing of different apertures is achieved without changing the tool head, which improves processing efficiency, reduces errors, reduces costs and improves processing accuracy.
Smart Images
Figure CN223160082U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of CNC machine tool cutters, and particularly relates to an outer diameter adjustable universal boring cutter for machining cylinder holes of large diesel engine blocks. Background Art
[0002] A boring cutter is a kind of hole machining cutter, and is most commonly used in occasions such as hole machining, drilling, profiling, etc. It has one or two cutting components. A cutter specifically used for rough machining, semi-finishing or finishing of existing holes is often used in the CNC milling process. However, when using a boring cutter to machine the inner holes of a diesel engine block at present, it is often necessary to replace the boring cutter to machine holes with different diameters. Since there are many hole diameter sizes to be machined for the key parts of the diesel engine, usually dozens of cutters are required to machine one device, which not only has a high cost and a long processing cycle, but also the boring cutter is heavy. Replacing the boring cutter is not only time-consuming and laborious, but also prone to installation errors, affecting the machining accuracy. Content of the Utility Model
[0003] The purpose of the utility model is to provide an outer diameter adjustable universal boring cutter for machining cylinder holes of large diesel engine blocks to solve the above technical problems.
[0004] To achieve the above purpose, the specific technical solution of an outer diameter adjustable universal boring cutter for machining cylinder holes of large diesel engine blocks of the utility model is as follows:
[0005] An outer diameter adjustable universal boring cutter for machining cylinder holes of large diesel engine blocks includes a tool block and a tool head. The tool block is fixedly installed on the spindle of the CNC machine tool and is controlled to rotate by the CNC machine tool. The tool head is installed on the tool block and rotates together with the tool block. The tool block has adjustment hole positions, and there is an adjustment mechanism installation hole axially in the adjustment hole positions. An adjustment mechanism is installed in the adjustment mechanism installation hole, and the adjustment mechanism is connected to the tool head for controlling the length of the tool head extending out; a fastening mechanism is installed on the tool block, and the fastening mechanism abuts against the side of the tool head for fastening the tool head after the adjustment is completed.
[0006] Further, the tool block is square, and the four sides are obtuse angles.
[0007] Further, the tool block adopts a BTO-FMB series taper shank and is matched with the spindle of a vertical machining center.
[0008] Further, there is a spindle installation hole in the middle of the square tool block. The spindle installation hole is used to connect the spindle of the CNC machine tool. The adjustment hole positions are installed on one side of the spindle installation hole. The front end of the tool block has a tool head installation hole. The adjustment mechanism installation hole is communicated with the tool head installation hole, and the tool head is installed in the tool block through the tool head installation hole.
[0009] Further, the adjusting mechanism is an adjusting screw. The mounting hole of the adjusting mechanism has internal threads, and the adjusting screw is installed in the mounting hole of the adjusting mechanism and abuts against the tool bit.
[0010] Further, the fastening mechanism is installed below the tool bit mounting hole. There is a fastening mechanism mounting hole below the front end of the tool block, and the fastening mechanism is installed in the fastening mechanism mounting hole and abuts against the side wall of the tool bit.
[0011] Further, the fastening mechanism is a fastening screw, and the fastening screw is installed in the fastening mechanism mounting hole and abuts against the side wall of the tool bit.
[0012] Further, there are multiple fastening screws.
[0013] The adjustable outer diameter universal boring tool for machining the cylinder holes of a large diesel engine block of the present utility model has the following advantages: In the tool block of the present utility model, an adjusting mechanism and a fastening mechanism for the tool bit are installed, so that the protruding length of the tool bit is adjustable, enabling the machining of hole diameters of different diameters without replacing the tool bit, thereby improving the machining efficiency. At the same time, according to the improved structure, the tool block of the present utility model is improved, facilitating the adjustment of the adjusting mechanism, while reducing the weight of the tool block and reducing the occurrence of dynamic balance imbalance during rotation. Description of the Drawings
[0014] Figure 1 is a schematic structural diagram of the adjustable outer diameter universal boring tool of the present utility model;
[0015] Figure 2 is a schematic structural diagram of the tool block of the present utility model;
[0016] Figure 3 is a cross-sectional view of the tool block structure of the present utility model;
[0017] Explanation of the marks in the figure: 1. Tool block; 11. Spindle mounting hole; 12. Adjusting hole position; 13. Mounting hole of the adjusting mechanism; 14. Tool bit mounting hole; 15. Mounting hole of the fastening mechanism; 2. Tool bit; 3. Adjusting mechanism; 4. Fastening mechanism. Detailed Embodiments
[0018] In order to better understand the purpose, structure and function of the present utility model, the following further describes in detail the adjustable outer diameter universal boring tool for machining the cylinder holes of a large diesel engine block of the present utility model with reference to the drawings.
[0019] As Figures 1-3As shown in the figure, an externally adjustable universal boring tool for machining cylinder holes of a large diesel engine block according to the present utility model includes a tool block 1, a tool bit 2, an adjustment mechanism 3, and a fastening mechanism 4. The tool block 1 is fixedly installed on the spindle of a numerical control machine tool and is rotated under the control of the numerical control machine tool. The tool bit 2 is installed on the tool block 1 and rotates together with the tool block 1 to complete the machining of the cylinder holes of the diesel engine block. The adjustment mechanism 3 is fixedly installed on the tool block 1 and connected to the tool bit 2, and is used to control the length of the tool bit 2 extending out, that is, to control the machining diameter. When machining holes of different aperture sizes, the extending length of the tool bit 2 can be adjusted through the adjustment mechanism 3 without replacing tool bits of different models. The fastening mechanism 4 is installed on the tool block 1 and abuts against the side of the tool bit 2, and is used to fasten the tool bit 2 after adjustment to prevent the tool bit 2 from moving.
[0020] In one embodiment, in order to facilitate the installation of the adjustment mechanism 3 and the fastening mechanism 4 and reduce the mass of the tool block 1, the existing cylindrical tool block 1 is cut into a square shape, and the four sides are cut into obtuse angles to further reduce the weight and prevent dynamic balance imbalance caused by excessive weight during rotation. Preferably, the tool block 1 adopts a 24BT5O-FMB series taper shank and is matched with the spindle of a vertical machining center.
[0021] The square tool block 1 has a spindle mounting hole 11 in the middle. The spindle mounting hole 11 is used to connect the spindle of the numerical control machine tool. One side of the spindle mounting hole 11 has an adjustment hole position 12. An adjustment mechanism mounting hole 13 is axially arranged in the adjustment hole position. The front end of the tool block 1 has a tool bit mounting hole 14. The adjustment mechanism mounting hole 13 communicates with the tool bit mounting hole 14, and the tool bit 2 is installed in the tool block 1 through the tool bit mounting hole 14.
[0022] In one embodiment, the adjustment mechanism 3 is an adjustment screw. The adjustment mechanism mounting hole 13 has internal threads. The adjustment screw is installed in the adjustment mechanism mounting hole 13 and abuts against the tool bit 2. It extends into the end of the adjustment screw through the adjustment hole position 12. By rotating the adjustment screw, the depth of the adjustment screw screwed into the adjustment mechanism mounting hole 13 can be controlled, so as to adjust the extending length of the tool bit 2.
[0023] The fastening mechanism 4 is installed below the tool bit mounting hole 14. Specifically, a fastening mechanism mounting hole 15 is arranged below the front end of the tool block 1. The fastening mechanism 4 is installed in the fastening mechanism mounting hole 15 and abuts against the side wall of the tool bit 2.
[0024] In one embodiment, the fastening mechanism 4 is a fastening screw. The fastening screw is installed in the fastening mechanism mounting hole 15 and abuts against the side wall of the tool bit 2. After the adjustment mechanism 3 is installed in place, the fastening screw is tightened to fasten the tool bit 2.
[0025] In one embodiment, in order to strengthen the fastening firmness of the tool bit 2, multiple fastening screws can be installed to strengthen the fastening firmness. Preferably, there are two fastening screws.
[0026] It can be understood that the present utility model is described through some embodiments. Those skilled in the art will know that without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.
Claims
1. An externally adjustable universal boring tool for machining cylinder holes of a large diesel engine block, comprising a tool block (1) and a tool bit (2). The tool block (1) is fixedly installed on the spindle of a numerical control machine tool and is controlled by the numerical control machine tool to rotate. The tool bit (2) is installed on the tool block (1) and rotates together with the tool block (1). It is characterized in that, The tool block (1) is provided with adjustment hole positions (12). An adjustment mechanism mounting hole (13) is axially arranged in the adjustment hole positions (12). An adjustment mechanism (3) is mounted in the adjustment mechanism mounting hole (13). The adjustment mechanism (3) is connected to the tool bit (2) and is used to control the length of the tool bit (2) extending out. A fastening mechanism (4) is mounted on the tool block (1). The fastening mechanism (4) abuts against the side surface of the tool bit (2) and is used to fasten the tool bit (2) after the adjustment is completed.
2. The adjustable outer diameter universal boring tool for machining cylinder holes of large diesel engine blocks according to claim 1, characterized in that, The tool block (1) is square with obtuse angles at its four sides.
3. The adjustable outer diameter universal boring tool for machining the cylinder holes of a large diesel engine block according to claim 1, characterized in that, The tool block (1) adopts a BTO-FMB series taper shank and is matched with the spindle of a vertical machining center.
4. The adjustable outer diameter universal boring tool for machining the cylinder holes of a large diesel engine block according to claim 1, wherein, A spindle mounting hole (11) is arranged in the middle of the tool block (1). The spindle mounting hole (11) is used to connect the spindle of a numerical control machine tool. The adjustment hole positions (12) are mounted on one side of the spindle mounting hole (11). A tool bit mounting hole (14) is arranged at the front end of the tool block (1). The adjustment mechanism mounting hole (13) communicates with the tool bit mounting hole (14). The tool bit (2) is mounted in the tool block (1) through the tool bit mounting hole (14).
5. The adjustable outer diameter universal boring tool for machining the cylinder holes of a large diesel engine block according to claim 4, wherein, The adjustment mechanism (3) is an adjustment screw. The adjustment mechanism mounting hole (13) has internal threads. The adjustment screw is mounted in the adjustment mechanism mounting hole (13) and abuts against the tool bit (2).
6. The adjustable outer diameter universal boring tool for machining cylinder holes of large diesel engine blocks according to claim 4, characterized in that, The fastening mechanism (4) is mounted below the tool bit mounting hole (14). A fastening mechanism mounting hole (15) is arranged below the front end of the tool block (1). The fastening mechanism (4) is mounted in the fastening mechanism mounting hole (15) and abuts against the side wall of the tool bit (2).
7. The adjustable outer diameter universal boring tool for machining the cylinder holes of a large diesel engine block according to claim 6, characterized in that, The fastening mechanism (4) is a fastening screw. The fastening screw is mounted in the fastening mechanism mounting hole (15) and abuts against the side wall of the tool bit (2).
8. The adjustable outer diameter universal boring tool for machining cylinder holes of large diesel engine blocks according to claim 7, characterized in that, There are multiple such fastening screws.