CN205702603U - A kind of obtuse angle cutterhead - Google Patents

Abstract

The utility model relates to the field of cutting tools, in particular to an obtuse angle cutter head. Normally, the CNMG diamond-shaped double-sided insert is clamped on the face milling cutter head, and the 80° acute-angle tip is used for cutting processing. After the tip wears to the limit, the insert is scrapped. The obtuse-angle cutter head described in the utility model is clamped with CNMG diamond-shaped double-sided blades, and two 100° obtuse-angle knife tips are used for cutting. Thereby realizing the reuse of scrapped blades. The obtuse cutter head is fitted on the main shaft or mandrel of the machine tool through the center hole of the cutter head body, and the torsional moment is transmitted by means of the rectangular keyway on the end face. The CNMG diamond-shaped double-sided blade is installed on the body of the cutter head, and is fastened and positioned with a double-headed screw and a pressure plate. The angle of clamping CNMG diamond-shaped double-sided blade on the cutter head body is an obtuse angle of 100°, and both sides can be used.

Description

An obtuse angle cutter

【Technical field】

The utility model relates to the field of cutting tools, in particular to an obtuse angle cutter head.

【Background technique】

As known, the CNMG double-sided diamond blade is an ISO standard double-sided diamond blade, and the internal angles of the rhombus are 80° and 100° respectively. Normally, the CNMG diamond-shaped double-sided insert is clamped on the corresponding turning tool holder, and the 80° acute angle tool tip is used for cutting. When the sharp-edged tip wears to the limit, the blade is scrapped directly.

And can not utilize two obtuse angle knife points of 100 ° of CNMG rhombic double-sided blade, have caused very big waste, increased the production cost of factory.

【Content of invention】

In order to overcome the disadvantages in the background technology, the utility model discloses an obtuse angle cutter head, which can hold CNMG diamond-shaped double-sided blades, and use two 100° obtuse angle tool tips for double-sided cutting. Thereby realizing the reuse of scrapped blades.

In order to realize the above-mentioned purpose of the invention, the utility model adopts the following technical solutions:

1. The overall structure and clamping principle of the obtuse-angle cutterhead: the obtuse-angle cutterhead is set on the main shaft or mandrel of the machine tool through the center hole of the cutterhead body, and the torsional moment is transmitted by means of the rectangular keyway on the end face. The CNMG diamond-shaped double-sided blade is installed on the body of the cutter head, and is fastened and positioned with a double-headed screw and a pressure plate. See attached drawing 1 for details.

2. The obtuse angle structure of the obtuse angle cutter head: the angle of the CNMG diamond-shaped double-sided blade clamped on the cutter head body is an obtuse angle of 100°. See attached drawings 2 and 4 for details.

3. The principle of double-sided cutting: CNMG diamond-shaped double-sided insert is an ISO standard diamond-shaped double-sided cutting insert, which can make better use of the cutting edge. Both sides of the CNMG diamond-shaped double-sided insert can be used.

At present, the obtuse angle cutter head has produced two structures of 4 teeth and 6 teeth, and the number of teeth is not limited.

【Description of drawings】

Fig. 1 is a perspective view of an obtuse angle cutter head;

Fig. 2 is a front view of obtuse angle cutter head with 4 teeth;

Fig. 3 is a plan view of 4 teeth of an obtuse cutterhead;

Fig. 4 is a front view of obtuse angle cutter head with 6 teeth;

Fig. 5 is a top view of obtuse angle cutter head with 6 teeth;

Fig. 6 is a schematic diagram of a 100° obtuse angle of the cutter head body;

In the figure: 1. Rectangular keyway; 2. Cutter seat body; 3. Pressure plate; 4. CNMG diamond-shaped double-sided blade

【detailed description】

In conjunction with the accompanying drawings, the obtuse-angle cutter head is set on the main shaft or mandrel of the machine tool through the center hole on the cutter head body 2, and the torsional moment is transmitted by means of the end face rectangular keyway 1, and the CNMG diamond-shaped double-sided blade 4 is installed on the cutter head seat On the body 2, fasten and position with the double-headed screw and the pressure plate 3. The angle of clamping CNMG diamond-shaped double-sided blade on the cutter head body is an obtuse angle of 100°, and both sides can be used. At present, two structures of 4 teeth and 6 teeth have been produced, and the number of teeth is not limited. Realized the reuse of scrapped blades.

Claims (2)

1. an obtuse angle cutterhead, it is characterised in that obtuse angle cutterhead is sleeved on the master of lathe by the centre bore of cutter chuck holder adapted body (2) On axle or mandrel, transmitting torsional moment by end face rectangle keyway (1), CNMG diamond double-sided blade (4) is arranged on cutter chuck holder adapted originally On body, and carry out fastening location with dowel screw and pressing plate (3).

Obtuse angle the most according to claim 1 cutterhead, it is characterised in that clamping CNMG diamond double-sided blade on cutter chuck holder adapted body Angle be 100 ° of obtuse angle.