Milling tool for machining cast iron parts

Abstract

The utility model provides a milling cutter for processing cast iron parts, which relates to the technical field of numerical control cutters, and comprises a lower protection piece and an upper protection piece, one side of the lower protection piece and one side of the upper protection piece are provided with extension parts, the middle of the inner side of the lower protection piece is provided with a central rotating shaft, and the lower part of the central rotating shaft is provided with a driving gear; the side face of the driving gear is meshed with a transmission gear, the side face of the transmission gear is meshed with a driven gear, a driven rotating shaft is installed in the middle of the driven gear, and cutter discs are installed at the two ends of the driven rotating shaft. The driven gear drives the driven rotating shaft to synchronously rotate, the driven rotating shaft can drive the cutter disc connected with the driven rotating shaft to rotate when rotating, the cutter disc can drive the cutter to quickly rotate when rotating, and at the moment, the numerical control machine tool drives the whole to horizontally move and gradually get close to an iron casting, and machining can be completed only through horizontally moving of the numerical control machine tool. Meanwhile, the contact area of the cutter and the iron casting is increased, and the service life of the cutter is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control tools, and more specifically, particularly relates to a milling tool for machining cast iron parts. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools. It is mainly used for cutting the inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary taper angles, complex rotary inner and outer curved surfaces, and cylindrical and conical threads, and can also perform grooving, drilling, reaming, reaming and boring, etc. CNC machine tools automatically process the parts to be processed according to the pre-programmed processing program.

[0003] Based on the above, the inventors have discovered the following problems: when a CNC machine tool processes a cast iron part, it is sometimes necessary to cut and process the side of the cast iron part to create a hollow. The general processing method is to use a CNC machine tool to adjust the angle of the processing seat to process the hollow. This method is more cumbersome and requires more complex programming. In addition, the tool is tilted, which reduces the contact area between the tool and the cast iron part, thereby reducing the service life of the tool.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a milling tool for machining cast iron parts is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a milling cutter for machining cast iron parts, so as to solve the problem that the contact area between the cutter and the cast iron part is small due to the tilt machining of current CNC machine tools, thereby reducing the service life of the cutter.

[0006] The purpose and effect of the milling cutter for machining cast iron parts of the utility model are achieved by the following specific technical means:

[0007] A milling tool for machining cast iron parts comprises a lower protective member and an upper protective member, wherein one side of the lower protective member and the upper protective member is provided with an extension portion, a central rotating shaft is installed in the middle of the inner side of the lower protective member, a driving gear is installed in the lower part of the central rotating shaft, a transmission gear is meshed and connected to the side of the driving gear, a passive gear is meshed and connected to the side of the transmission gear, a passive rotating shaft is installed in the middle of the passive gear, and tool discs are installed at both ends of the passive rotating shaft.

[0008] Furthermore, a center rod is installed in the middle of the transmission gear, and the center rod is connected to the inner side of the lower protective member.

[0009] Furthermore, the upper portion of the central rotating shaft passes through the upper protecting member, and the upper and lower ends of the passive rotating shaft pass through the upper protecting member and the lower protecting member.

[0010] Furthermore, a mounting groove is provided on the side of the tool disc, a tool is installed inside the mounting groove, and the upper and lower parts and side surfaces of the tool are all beyond the inside of the mounting groove.

[0011] Furthermore, there are multiple installation grooves and tools, which are respectively arranged in a circle on the tool disc.

[0012] Furthermore, the lower protective member and the upper protective member are connected by fixing bolts, a kit is installed on the upper portion of the upper protective member, a connecting member is arranged inside the kit, and the connecting member is connected to the central rotating shaft.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the driving gear will drive the transmission gear meshing with it to rotate synchronously during the rotation process. At this time, the transmission gear rotates with the center rod as the center, and drives the passive gear to rotate at the same time. When the passive gear rotates, it can drive the passive gear to rotate. At this time, the passive gear drives the passive rotating shaft to rotate synchronously. When the passive rotating shaft rotates, it can drive the tool disk connected to it to rotate. When the tool disk rotates, it can drive the tool to rotate rapidly. At this time, the CNC machine tool drives the entire body to translate and gradually approach the cast iron part. This method only needs to translate the CNC machine tool to complete the processing. At the same time, the contact area between the tool and the cast iron part is increased, thereby improving the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall assembly of a milling cutter for machining cast iron parts.

[0016] Figure 2 The utility model is a partial assembly schematic diagram of a milling cutter for machining cast iron parts.

[0017] Figure 3 The utility model is a schematic diagram of the internal assembly of a milling cutter for machining cast iron parts.

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0019] 1. Lower protective part; 2. Fixing bolt; 3. Upper protective part; 4. Kit; 5. Connecting part; 6. Center shaft; 7. Driving gear; 8. Extension; 9. Center rod; 10. Transmission gear; 11. Passive gear; 12. Passive shaft; 13. Tool disc; 14. Mounting slot; 15. Tool. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To Attachment Figure 3 As shown:

[0025] The utility model provides a milling tool for machining cast iron parts, comprising a lower protective member 1 and an upper protective member 3, one side of the lower protective member 1 and the upper protective member 3 is provided with an extension portion 8, a central rotating shaft 6 is installed in the middle of the inner side of the lower protective member 1, a driving gear 7 is installed at the lower part of the central rotating shaft 6, a side of the driving gear 7 is meshedly connected with a transmission gear 10, a side of the transmission gear 10 is meshedly connected with a passive gear 11, a passive rotating shaft 12 is installed in the middle of the passive gear 11, tool discs 13 are installed at both ends of the passive rotating shaft 12, and a central part of the transmission gear 10 is installed with a The center rod 9 is connected to the inner side of the lower protective member 1. The upper part of the center shaft 6 passes through the upper protective member 3. The upper and lower ends of the passive shaft 12 pass through the upper protective member 3 and the lower protective member 1. The active gear 7 will drive the transmission gear 10 meshing with it to rotate synchronously during the rotation process. At this time, the transmission gear 10 rotates with the center rod 9 as the center, and drives the passive gear 11 to rotate at the same time. At this time, the passive gear 11 drives the passive shaft 12 to rotate synchronously. When the passive shaft 12 rotates, it can drive the tool disc 13 connected to it to rotate. When the tool disc 13 rotates, it can drive the tool 15 to rotate rapidly.

[0026] Among them, a mounting groove 14 is opened on the side of the tool disc 13, and a tool 15 is installed inside the mounting groove 14. The upper and lower parts and the side surfaces of the tool 15 all extend beyond the inside of the mounting groove 14. There are multiple mounting grooves 14 and tools 15, which are respectively arranged in a circle on the tool disc 13. When the passive rotating shaft 12 rotates, it can drive the tool disc 13 connected thereto to rotate. When the tool disc 13 rotates, it can drive the tool 15 to rotate rapidly. At this time, the overall translation is driven by the CNC machine tool, gradually approaching the cast iron part, so that the contact area between the tool 15 and the cast iron part is increased, point contact of the tool 15 is avoided, and the service life of the tool 15 is improved.

[0027] The lower protection member 1 and the upper protection member 3 are connected via a fixing bolt 2 , a kit 4 is installed on the upper portion of the upper protection member 3 , a connecting member 5 is provided inside the kit 4 , and the connecting member 5 is connected to a central rotating shaft 6 .

[0028] The specific usage and function of this embodiment are as follows:

[0029] In the utility model, the connecting member 5 is first connected to the CNC machine tool, and then the connecting member 5 is driven to rotate by the CNC machine tool. When the connecting member 5 rotates, the central shaft 6 can be driven to rotate synchronously. The central shaft 6 can drive the driving gear 7 to rotate. During the rotation process, the driving gear 7 will drive the transmission gear 10 meshing with it to rotate synchronously. At this time, the transmission gear 10 rotates with the center rod 9 as the center, and drives the passive gear 11 to rotate at the same time. At this time, the passive gear 11 drives the passive shaft 12 to rotate synchronously. When the passive shaft 12 rotates, it can drive the tool disk 13 connected to it to rotate. When the tool disk 13 rotates, it can drive the tool 15 to rotate rapidly. At this time, the overall translation is driven by the CNC machine tool to gradually approach the cast iron part.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A milling tool for machining cast iron parts, comprising a lower protective member (1) and an upper protective member (3), characterized in that: An extension portion (8) is provided on one side of the lower protective member (1) and the upper protective member (3); a central rotating shaft (6) is mounted in the middle of the inner side of the lower protective member (1); a driving gear (7) is mounted below the central rotating shaft (6); a transmission gear (10) is meshedly connected to the side of the driving gear (7); a passive gear (11) is meshedly connected to the side of the transmission gear (10); a passive rotating shaft (12) is mounted in the middle of the passive gear (11); and tool discs (13) are mounted at both ends of the passive rotating shaft (12).

2. A milling tool for machining cast iron parts as claimed in claim 1, characterized in that: A central rod (9) is installed in the middle of the transmission gear (10), and the central rod (9) is connected to the inner side of the lower protective member (1).

3. A milling tool for machining cast iron parts as claimed in claim 1, characterized in that: The upper portion of the central rotating shaft (6) passes through the upper protective member (3), and the upper and lower ends of the passive rotating shaft (12) pass through the upper protective member (3) and the lower protective member (1).

4. A milling tool for machining cast iron parts as claimed in claim 1, characterized in that: A mounting groove (14) is provided on the side of the tool disc (13), a tool (15) is installed inside the mounting groove (14), and the upper and lower parts and side surfaces of the tool (15) all extend beyond the interior of the mounting groove (14).

5. A milling tool for machining cast iron parts as claimed in claim 4, characterized in that: The number of the mounting grooves (14) and the cutting tools (15) is plural and they are respectively arranged in a circle on the cutting tool disc (13).

6. A milling tool for machining cast iron parts as claimed in claim 1, characterized in that: The lower protection member (1) and the upper protection member (3) are connected via fixing bolts (2); a kit (4) is installed on the upper part of the upper protection member (3); a connecting member (5) is arranged inside the kit (4); and the connecting member (5) is connected to a central rotating shaft (6).

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