Forming cutter for machining inner hole continuous groove

Abstract

The utility model relates to a machining tool, in particular to a forming tool for machining an inner hole continuous groove. The tool bit is arranged on the tool handle, and a rough chip removal groove and a fine chip removal groove are formed in the two sides of the tool bit respectively; the rough forming blade is arranged on one side of the tool bit, located on one side of the rough chip removal groove and used for rough machining of the continuous groove; the fine forming blade is arranged on the other side of the tool bit, located on one side of the fine chip discharging groove and used for fine machining of the continuous groove. According to the forming cutter for machining the inner hole continuous groove, the rough forming blade used for rough machining and the fine forming blade used for fine machining are arranged on the cutter head, machining of the continuous groove is completed through one-time clamping, a plurality of cutters are not needed, the clamping frequency is greatly reduced, efficiency is improved, and the machining cost is reduced. And the machining precision is effectively ensured.

Description

Technical Field

[0001] The utility model relates to a processing tool, in particular to a forming tool used for processing inner hole continuous grooves. Background Art

[0002] In the field of automotive parts processing, the processing of internal holes of parts is currently mainly boring or drilling and reaming. The processing of internal grooves is mainly boring, and some grooves with lower requirements are processed by saw blade milling. The common method of boring internal grooves is to use a simple structure forming boring tool, or a single point contact boring tool to follow the contour. This type of solution is relatively common, but the disadvantage is that the processing cycle is slow. When encountering continuous grooves with complex structures, multiple tools are required for processing, and the accuracy is difficult to guarantee, and the efficiency is too low. Utility Model Content

[0003] In order to solve the above problems of low processing efficiency and poor precision, the utility model provides a forming tool for inner hole continuous groove processing, and the specific technical solution is:

[0004] A forming tool for machining continuous grooves in an inner hole, comprising: a tool handle; a tool head, which is arranged on the tool handle, and a rough chip groove and a fine chip groove are respectively arranged on both sides of the tool head; a rough forming blade, which is arranged on one side of the tool head and located on one side of the rough chip groove and is used for rough machining of the continuous groove; and a fine forming blade, which is arranged on the other side of the tool head and located on one side of the fine chip groove and is used for fine machining of the continuous groove.

[0005] Preferably, the rough forming blade and the fine forming blade are respectively located on both sides of the axis of the cutter head, and the tip of the rough forming blade and the tip of the fine forming blade are both on the same plane.

[0006] Preferably, the inclination angles of the fine rake face of the fine forming blade and the rough rake face of the rough forming blade are both 5°.

[0007] Preferably, it further comprises: a plurality of cooling holes, which are arranged in the rough chip removal groove and the fine chip removal groove and are respectively arranged opposite to the rough forming blade and the fine forming blade.

[0008] Preferably, the tool head is also provided with a finishing mark and a roughing mark, the finishing mark is arranged on the other side of the finishing chip groove; the roughing mark is arranged on the other side of the rough chip groove.

[0009] Preferably, the rough blade edge of the rough forming blade is 0.1 mm smaller than the fine blade edge of the fine forming blade.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model provides a forming tool for processing continuous grooves in inner holes. A rough forming blade for rough processing and a fine forming blade for fine processing are arranged on the tool head, so that the processing of the continuous groove can be completed in one clamping without multiple tools, which greatly reduces the number of clamping times, improves efficiency, and effectively ensures processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front view of the present application;

[0013] Figure 2 is a side view of the present application;

[0014] Figure 3 It is a processing diagram. DETAILED DESCRIPTION

[0015] The utility model is now further described with reference to the accompanying drawings.

[0016] like Figure 1 and Figure 2 As shown, a forming tool for processing continuous grooves in inner holes includes a tool handle 1, a tool head 2, a rough forming blade 4 and a fine forming blade 3. The tool head 2 is arranged at one end of the tool handle 1 and is coaxially arranged and is an integral structure; a rough chip groove 21 and a fine chip groove 22 are symmetrically arranged on both sides of the tool head 2; the rough forming blade 4 is installed on one side of the tool head 2 and is located on one side of the rough chip groove 21, and is used for rough processing of continuous grooves; the fine forming blade 3 is installed on the other side of the tool head 2 and is located on one side of the fine chip groove 22, and is used for fine processing of continuous grooves. The rough forming blade 4 and the fine forming blade 3 are respectively located on both sides of the axis of the tool head 2, and the tip of the rough forming blade 4 and the tip of the fine forming blade 3 are both on the same plane. The inclination angles of the fine front face 31 of the fine forming blade 3 and the rough front face 41 of the rough forming blade 4 are both 5°. The rough blade edge of the rough forming blade 4 is 0.1mm smaller than the fine blade edge of the fine forming blade 3.

[0017] The cutter head 2 is provided with two cooling holes, the outlets of which are respectively located in the rough chip removal groove 21 and the fine chip removal groove 22 and are respectively arranged opposite to the rough forming blade 4 and the fine forming blade 3 .

[0018] A finishing mark 27 and a roughing mark 26 are respectively provided on both sides of the cutter head 2. The finishing mark 27 is provided on the other side of the fine chip groove 22, and the fine front cutting edge 31 of the fine forming blade 3 is on the same side of the cutter head 2; the roughing mark 26 is provided on the other side of the rough chip groove 21, and is on the same side of the cutter head 2 as the rough front cutting edge 41 of the rough forming blade 4.

[0019] like Figure 3As shown in the figure, the processing steps are as follows: the part is clamped on the spindle, the spindle rotates, the forming tool is clamped on the turret, and is sent to the specified position of the inner hole by the program control. The program controls the movement in the X-axis direction so that the rough machining blade of the tool cuts the inner hole of the part. Note that a 0.1mm margin should also be left for the finishing in the diameter direction. After the rough machining is completed, the program controls the X-axis to move in the opposite direction so that the finishing blade cuts along the rough machining contour to form the groove as a whole. Since the rough and fine machining tool contour edge reserves are consistent, the surface quality of the inner groove after machining is high and the size is stable.

[0020] This forming tool reduces the number of tools and the tool change time during the processing, which improves production efficiency. One-time forming also ensures the consistency and stability of the structural dimensions, avoiding the dimensional instability caused by the cooperation of multiple tools. In addition, the quality of the rough and fine processed parts is stable.

[0021] It can effectively improve production efficiency, especially for inner holes with complex structures.

[0022] The quality of parts with complex inner holes is significantly improved and the dimensional stability is higher.

[0023] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A forming tool for inner hole continuous groove processing, characterized in that: include: Handle (1); A cutter head (2) is arranged on the cutter handle (1), and two sides of the cutter head (2) are respectively provided with a coarse chip removal groove (21) and a fine chip removal groove (22); A rough forming blade (4) is arranged on one side of the cutter head (2) and located on one side of the rough chip removal groove (21), and is used for rough machining of continuous grooves; as well as A fine forming blade (3) is arranged on the other side of the cutter head (2) and located on one side of the fine chip removal groove (22) and is used for fine machining of the continuous groove.

2. A forming tool for inner hole continuous groove processing according to claim 1, characterized in that: The rough forming blade (4) and the fine forming blade (3) are respectively located on both sides of the axis of the cutter head (2), and the tip of the rough forming blade (4) and the tip of the fine forming blade (3) are both on the same plane.

3. A forming tool for inner hole continuous groove processing according to claim 1, characterized in that: The inclination angles of the fine rake face (31) of the fine-molding blade (3) and the rough rake face (41) of the rough-molding blade (4) are both 5°.

4. A forming tool for inner hole continuous groove processing according to claim 1, characterized in that: Also includes: A plurality of cooling holes are arranged in the rough chip removal groove (21) and the fine chip removal groove (22), and are respectively arranged opposite to the rough forming blade (4) and the fine forming blade (3).

5. A forming tool for inner hole continuous groove processing according to claim 1, characterized in that: The cutter head (2) is also provided with a finishing mark (27) and a roughing mark (26); the finishing mark (27) is arranged on the other side of the finishing chip groove (22); and the roughing mark (26) is arranged on the other side of the roughing chip groove (21).

6. A forming tool for inner hole continuous groove machining according to claim 1, characterized in that: The rough blade edge of the rough forming blade (4) is 0.1 mm smaller than the fine blade edge of the fine forming blade (3).

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