Fine boring cutter for machining exhaust seat ring and guide pipe bottom hole

Abstract

The utility model relates to the technical field of boring cutters, and discloses a fine boring cutter for processing an exhaust seat ring and a conduit bottom hole, which comprises a cutter body, an integrally formed cutter bar is arranged on the left side of the cutter body, a spiral groove is arranged on the outer wall of the cutter bar, an integrally formed mounting rod is arranged on the right side of the cutter body, and the mounting rod is arranged on the right side of the cutter body. The number of the grooves is six, the grooves are circumferentially and equally distributed in the outer wall of the cutter bar, and an arc-shaped groove is formed in the left side of the cutter bar. According to the boring cutter, the flat key groove in the installation rod is used for installation, rotation of the cutter is limited, stability after installation is improved, the cutter head on the left side of the cutter bar is used for tapping, the cutter bar and the groove in the outer wall of the cutter bar are used for chambering, and therefore boring operation is achieved, chambering is conducted through the four blades in a conical shape after the cutter bar makes contact with the cutter body in the rotating process, and machining efficiency is improved. And meanwhile, internal waste chips are rapidly discharged through the chip discharging grooves, the chip discharging capacity is improved, and the situation that the service life of the tool is affected due to local overheating is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of boring cutters, in particular to a precision boring cutter used for machining exhaust seat rings and conduit bottom holes. Background Art

[0002] The exhaust seat ring and the bottom hole of the duct are important parts in the automobile engine. They play the role of controlling the intake and exhaust of the cylinder. The exhaust seat ring is an annular protrusion on the engine cylinder head, usually located around the exhaust port of the cylinder. Its function is to support and seal the exhaust valve and provide a channel for the exhaust flow. The exhaust seat ring needs to have good heat resistance and wear resistance to withstand the high temperature and high pressure exhaust gas flow, and maintain sealing performance to ensure the normal operation of the engine.

[0003] The ducting holes are holes in the cylinder head that connect the pipes in the intake and exhaust systems. The intake ducting holes are used to install the intake manifold or intake valves, while the exhaust ducting holes are used to install the exhaust pipes or exhaust valves. These ducting holes need to be in a precise position and size to ensure that the pipes are installed correctly and do not affect the performance and emissions of the engine.

[0004] The existing boring tool used for large hole boring is a rough machining tool, which is mainly used for rough boring of workpieces with larger hole diameters. The size is difficult to control and the precision is relatively low. In order to open a hole with different diameters at one time and reduce the problem of replacing different tools, a fine boring tool for exhaust seat ring and duct bottom hole processing is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a precision boring tool for machining an exhaust seat ring and a bottom hole of a conduit in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a precision boring tool for exhaust seat ring and duct bottom hole processing, comprising: a tool body, an integrally formed tool rod is arranged on the left side of the tool body, and a spiral groove is opened on the outer wall of the tool rod, and an integrally formed mounting rod is arranged on the right side of the tool body.

[0007] Preferably, there are six grooves, which are equally distributed on the outer wall of the knife rod in a circumferential manner.

[0008] Preferably, an arc-shaped groove is opened on the left side of the knife rod, and a knife head is fixedly connected to the inner wall of the arc-shaped groove, and the knife head is triangular.

[0009] Preferably, a frustoconical layer is provided on the left side of the cutter body, and a chip removal groove is provided on the cutter body. There are four chip removal grooves, which are distributed in a circle on the outer wall of the cutter body.

[0010] Preferably, a blade is fixedly connected to one side of the chip groove.

[0011] Preferably, a flat key groove is provided on the outer wall of the mounting rod.

[0012] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0013] The precision boring tool for processing the exhaust seat ring and the bottom hole of the duct is used by the mutual cooperation among the tool body, the mounting rod, the flat keyway, the chip groove, the blade, the tool rod, the groove, the arc groove and the tool head. The flat keyway on the mounting rod is used for installation to limit the rotation of the tool and improve the stability after installation. At the same time, the tool head on the left side of the tool rod is used to open the hole, and the groove on the tool rod and its outer wall is used to expand the hole, thereby realizing the boring operation. After the tool body is contacted during rotation, four blades are used to expand the hole in a cone shape, and the chip groove is used to quickly discharge the internal waste chips, thereby improving its chip removal capacity and preventing local overheating and affecting the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model.

[0016] In the figure: 1, tool body; 2, mounting rod; 3, flat keyway; 4, chip groove; 5, blade; 6, tool rod; 7, groove; 8, arc groove; 9, tool head. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2An embodiment of the utility model is: a fine boring tool for exhaust seat ring and duct bottom hole processing, comprising: a tool body 1, an integrally formed tool rod 6 is arranged on the left side of the tool body 1, and a spiral groove 7 is opened on the outer wall of the tool rod 6, an integrally formed mounting rod 2 is arranged on the right side of the tool body 1, the number of the grooves 7 is six, and they are equally distributed on the outer wall of the tool rod 6 in a circle, an arc groove 8 is opened on the left side of the tool rod 6, a tool head 9 is fixedly connected to the inner wall of the arc groove 8, and the tool head 9 is triangular, a layered frustum is arranged on the left side of the tool body 1, a chip groove 4 is opened on the tool body 1, the number of the chip grooves 4 is four, and they are distributed in a circle on the outer wall of the tool body 1, a blade 5 is fixedly connected to one side of the chip groove 4, and a flat key groove 3 is opened on the outer wall of the mounting rod 2.

[0019] When in use, it is installed through the flat keyway 3 on the mounting rod 2 to limit the rotation of the tool and improve the stability after installation. At the same time, the cutter head 9 on the left side of the tool rod 6 is used to open a hole, and the tool rod 6 and the groove 7 on its outer wall are used to expand the hole, thereby realizing the boring operation. After contacting the tool body 1 during rotation, four blades 5 are used to expand the hole in a cone shape, and the chip groove 4 is used to quickly discharge the waste chips inside, thereby improving its chip removal ability and preventing local overheating that affects the service life of the tool. The hole is opened by using two tool bodies 1 and tool rods 6 with different diameters, so that a hole with different diameters can be opened at one time, thereby realizing the opening of the exhaust seat ring and the bottom hole of the duct.

[0020] The utility model provides a fine boring tool for exhaust seat ring and conduit bottom hole processing. There are many methods and ways to implement the technical solution. The above is only the preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A fine boring tool for machining exhaust seat rings and duct bottom holes, comprising: The knife body (1) is characterized in that: an integrally formed knife rod (6) is arranged on the left side of the knife body (1), and a spiral groove (7) is provided on the outer wall of the knife rod (6); and an integrally formed mounting rod (2) is arranged on the right side of the knife body (1); An arc-shaped groove (8) is provided on the left side of the knife rod (6), a knife head (9) is fixedly connected to the inner wall of the arc-shaped groove (8), and the knife head (9) is triangular in shape; A layered truncated cone is arranged on the left side of the cutter body (1), and a chip removal groove (4) is provided on the cutter body (1). The chip removal grooves (4) are four in number and are distributed in a circular pattern on the outer wall of the cutter body (1); A blade (5) is fixedly connected to one side of the chip removal groove (4).

2. A fine boring tool for machining exhaust seat rings and duct bottom holes according to claim 1, characterized in that: The number of the grooves (7) is six and they are equally distributed on the outer wall of the knife rod (6) in a circular pattern.

3. A fine boring tool for machining exhaust seat rings and duct bottom holes according to claim 2, characterized in that: The outer wall of the mounting rod (2) is provided with a flat keyway (3).

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