Cylinder hole reverse chamfering cutter for machining

Abstract

The cylinder hole reverse chamfering cutter for machining comprises a cutter handle and a cutter holder, the cutter handle is located below the cutter holder, and the diameter of the cutter holder is larger than that of the cutter handle. The tool bit further comprises a tool bit narrow face and a tool bit wide face, the tool bit narrow face and the tool bit wide face are integrated, the radius of the tool bit narrow face is smaller than that of the tool bit wide face, and the tool bit narrow face and the tool bit wide face are both located above the tool apron. The reaming and reverse chamfering processes are integrated, so that the working efficiency is improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of chamfering tools, in particular to a reverse chamfering tool for machining a cylinder hole. Background Art

[0002] Chamfering refers to the process of cutting the edges and corners of a workpiece into a certain slope. Chamfering is to remove burrs on parts caused by machining, and to facilitate part assembly. Chamfering is usually done on the ends of parts.

[0003] In the traditional chamfering process, especially when using a high-speed rotating chamfering cutter, the traditional tool performs single-process chamfering on the workpiece, but the chamfers on some workpieces may be different, especially in the processing of crankshaft connecting rods, the chamfering needs to be processed first for one of the chamfers, and then the tool is replaced for secondary processing. This method prolongs the processing time and also increases the process of tool replacement, which is not conducive to improving the efficiency of the process.

[0004] In order to solve the above technical problems, a Chinese utility model patent application with publication number CN210548564U discloses a chamfering tool that can perform two chamfering operations at the same time, belonging to the technical field of mechanical processing tools; the tool includes a tool holder, a plurality of first chamfering tools are installed at the bottom of the tool holder, and a plurality of second chamfering tools are also arranged on the tool holder above the first chamfering tools. The geometric dimensions of the first chamfering tools are smaller than the geometric dimensions of the second chamfering tools to achieve simultaneous processing of different chamfering specifications on the workpiece to be processed, the first chamfering tools and the second chamfering tools are distributed in an array circle, and the diameter of the circle where the first chamfering tools are distributed is smaller than the diameter of the circle where the second chamfering tools are distributed; the chamfering tool of the utility model that can perform two chamfering operations at the same time improves the complexity of traditional chamfering tool processing by selecting chamfering tools and different diameters of the circles where they are located, improves processing efficiency, and improves the convenience of on-site operation; this structure solves the problem of two chamfering operations working at the same time to a certain extent, but cannot achieve hole expansion, so how to design a cylinder bore reverse chamfering tool for processing that can simultaneously expand holes and reverse chamfer is a technical problem that technicians in this field currently need to solve. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a cylinder hole chamfering tool for processing, comprising a tool handle and a tool seat, the tool handle is located below the tool seat, and the tool seat has a diameter larger than the tool handle; it also comprises a tool head narrow surface and a tool head wide surface, the tool head narrow surface and the tool head wide surface are integrated, the radius of the tool head narrow surface is smaller than the radius of the tool head wide surface, and the tool head narrow surface and the tool head wide surface are both located above the tool seat.

[0006] Preferably, the narrow surface of the cutter head includes a large chip removal space and a chip removal groove, the large chip removal space and the chip removal groove are integrated, the chip removal groove is wide at the top and narrow at the bottom, the chip removal groove is opened above the narrow surface of the cutter head, and the large chip removal space is located above the chip removal groove.

[0007] Preferably, the narrow surface of the tool head includes a first reaming tool and a reverse chamfering tool, the first reaming tool is located above the reverse chamfering tool, the position of the first reaming tool corresponds to the position of the large chip removal space, and the position of the reverse chamfering tool corresponds to the position of the chip removal groove.

[0008] Preferably, the wide surface of the cutter head includes a small chip removal space and a second reaming tool, the position of the second reaming tool is symmetrical to the position of the first reaming tool, and the position of the small chip removal space corresponds to the position of the second reaming tool.

[0009] Preferably, it comprises a tapered space, wherein the tapered space is located inside the tool handle.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. Use machine-clamped blade quick-change mode to process inner holes, replace the original alloy drill, reduce costs and improve efficiency.

[0012] 2. Integrate the hole expansion and chamfering processes together to improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of an embodiment of the utility model.

[0014] Figure 2 It is a schematic structural diagram of an embodiment of the utility model.

[0015] Figure 3 It is a schematic structural diagram of a reverse chamfering knife according to an embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the first reaming knife of an embodiment of the utility model.

[0017] In the figure, 1. tool handle, 2. tool seat, 3. chip groove, 4. reverse chamfering tool, 5. first reaming tool, 6. small chip removal space, 7. second reaming tool, 8. large chip removal space, 9. narrow surface of tool head, 10. wide surface of tool head, 11. conical space. DETAILED DESCRIPTION

[0018] 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.

[0019] like Figure 1-4 , a cylinder hole chamfering tool for industrial use, characterized in that: it includes a tool handle 1 and a tool seat 2, the tool handle 1 is located below the tool seat 2, and the diameter of the tool seat 2 is larger than the tool handle 1; it also includes a narrow face 9 of a cutter head and a wide face 10 of a cutter head, the narrow face 9 of a cutter head and the wide face 10 of a cutter head are integrated, the radius of the narrow face 9 of a cutter head is smaller than the radius of the wide face 10 of a cutter head, and the narrow face 9 of a cutter head and the wide face 10 of a cutter head are both located above the tool seat 2; the narrow face of a cutter head facilitates the smooth discharge of iron chips, reduces extrusion and wear, and increases the service life of the device. The device uses a quick-change mode of clamping a blade to process inner holes, replaces the original alloy drill, reduces costs, and improves efficiency.

[0020] like Figure 1-4 The narrow surface 9 of the cutter head includes a large chip removal space 8 and a chip removal groove 3. The large chip removal space 8 and the chip removal groove 3 are integrated. The chip removal groove 3 is wide at the top and narrow at the bottom. The chip removal groove 3 is opened above the narrow surface 9 of the cutter head, and the large chip removal space 8 is located above the chip removal groove 3. The large chip removal space 8 and the chip removal groove 3 facilitate the rapid discharge of iron chips, reduce the accumulation of iron chips, and facilitate cleaning.

[0021] like Figure 1-4 The narrow surface 9 of the cutter head includes a first reaming tool 5 and a reverse chamfering tool 4. The first reaming tool 5 is located above the reverse chamfering tool 4. The position of the first reaming tool 5 corresponds to the position of the large chip removal space 8, and the position of the reverse chamfering tool 4 corresponds to the position of the chip removal groove 3; the reaming and reverse chamfering processes are concentrated together to improve efficiency.

[0022] like Figure 1-4 The wide surface 10 of the cutter head includes a small chip removal space 6 and a second reaming tool 7. The position of the second reaming tool 7 is symmetrical to the position of the first reaming tool 5, and the position of the small chip removal space 6 corresponds to the position of the second reaming tool 7. Reamers are provided on both sides to improve the reaming efficiency and the working efficiency of the device.

[0023] like Figure 1-4 , including a conical space 11, which is located inside the tool handle 1; the conical space is opened to reduce material loss, reduce weight, increase rotation speed, and speed up cutting efficiency.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylinder hole chamfering tool for machining, characterized in that: The knife comprises a knife handle (1) and a knife seat (2), wherein the knife handle (1) is located below the knife seat (2), and the diameter of the knife seat (2) is larger than that of the knife handle (1); and further comprises a knife head narrow surface (9) and a knife head wide surface (10), wherein the knife head narrow surface (9) and the knife head wide surface (10) are integrated, the radius of the knife head narrow surface (9) is smaller than the radius of the knife head wide surface (10), and the knife head narrow surface (9) and the knife head wide surface (10) are both located above the knife seat (2); The narrow face (9) of the cutter head comprises a large chip removal space (8) and a chip removal groove (3); the large chip removal space (8) and the chip removal groove (3) are integrated; the chip removal groove (3) is wide at the top and narrow at the bottom; the chip removal groove (3) is opened above the narrow face (9) of the cutter head; and the large chip removal space (8) is located above the chip removal groove (3); The narrow face (9) of the cutter head comprises a first reaming cutter (5) and a reverse chamfering cutter (4), wherein the first reaming cutter (5) is located above the reverse chamfering cutter (4), the position of the first reaming cutter (5) corresponds to the position of the large chip removal space (8), and the position of the reverse chamfering cutter (4) corresponds to the position of the chip removal groove (3); The wide surface (10) of the cutter head comprises a small chip removal space (6) and a second reaming knife (7); the position of the second reaming knife (7) is symmetrical to the position of the first reaming knife (5); the position of the small chip removal space (6) corresponds to the position of the second reaming knife (7).

2. The cylinder hole chamfering tool for machining according to claim 1, characterized in that: It comprises a conical space (11), wherein the conical space (11) is located inside the knife handle (1).

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