CN220880679U - But autogiration blade milling cutter dish - Google Patents

Abstract

The utility model belongs to the technical field of mechanical cutters, and particularly relates to an automatic rotary blade milling cutter disc, which comprises a cutter disc, a cutter mounting groove arranged on the cutter disc and a cutter connected with the cutter mounting groove, wherein a central through hole is formed in the cutter, an external thread cylindrical pin penetrates through the central through hole to be connected with a bearing arranged in the central through hole, and the cutter is connected in the cutter mounting groove through the external thread cylindrical pin; the cutter end face is provided with a cutting edge around the periphery. The utility model is used for solving the technical problems of too fast abrasion and high use cost of the cutter on the existing milling cutter disc.

Description

But autogiration blade milling cutter dish

Technical Field

The utility model belongs to the technical field of mechanical cutters, and particularly relates to a cutter disc capable of automatically rotating a blade.

Background

Milling tools are rotary tools for milling machining having one or more cutter teeth. When in operation, each cutter tooth cuts off the allowance of the workpiece intermittently in sequence. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces, etc. on milling machines.

The milling cutter disc in the milling cutter is a cutter for milling a workpiece plane in the machining process, the existing milling cutter disc in the market is usually a fixed cutter, the workpiece is machined through a cutting edge at a fixed position on the cutter, and the cutting edge is worn too quickly; most of milling cutters are integrated with the cutters, and the cutters of the milling cutters are damaged in the processing process, so that the milling cutters are required to be replaced integrally, and the cost is high.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to provide a cutter disc capable of automatically rotating blades, which is used for solving the technical problems of too fast abrasion and high use cost of the cutter on the conventional cutter disc.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the cutter disc comprises a cutter disc, a cutter mounting groove and a cutter, wherein the cutter mounting groove is formed in the cutter disc, the cutter is connected with the cutter mounting groove, a central through hole is formed in the cutter, an external thread cylindrical pin penetrates through the central through hole to be connected with a bearing arranged in the central through hole, and the cutter is connected in the cutter mounting groove through the external thread cylindrical pin; the cutter end face is provided with a cutting edge around the periphery.

Preferably, the end part of the external thread cylindrical pin is provided with a chip blocking plate.

Preferably, the number of the cutter mounting grooves is 6-10.

Preferably, the cutter disc is provided with a threaded hole matched with the external thread cylindrical pin, and the threaded hole and the threads matched with the external thread cylindrical pin are opposite to the rotation direction of the cutter disc during working.

Preferably, the mounting surface of the tool mounting groove is disposed obliquely with respect to the central axis of the tool tray.

Preferably, the inclination angle of the mounting surface ranges from 0 degrees to 25 degrees.

The technical scheme of the utility model has the beneficial effects that:

the cutter is detachably connected with the cutter, so that the cutter can be conveniently and independently replaced after being worn, the cost is saved, the cutter can rotate relative to the cutter, the cutting edge annularly arranged on the cutter can be recycled in the cutting process, and the service life of the cutter is prolonged. The cutter mounting groove is formed in the cutter disc, and the cutter is detachably connected in the cutter mounting groove, so that the cutter is convenient to replace independently after the cutting edge of the cutter is worn, and the cost is reduced; through set up the bearing in the central through-hole of cutter, the external screw thread cylindric lock is connected to the bearing, connects the cutter in the cutter mounting groove through the external screw thread cylindric lock, makes the cutter can be relative cutter dish autogiration under the bearing effect, like this when cutting the work piece, the cutting edge all line that the ring circumference set up on the cutter participates in the cutting to extension cutter's life.

Drawings

FIG. 1 is a schematic front view of an embodiment of an automatically rotatable blade milling cutter;

FIG. 2 is a schematic top view of an embodiment of an automatically rotatable blade milling cutter;

fig. 3 is a partial schematic view of an embodiment of an automatically rotatable blade milling cutter disc in use.

In fig. 1-3, 1-cutter disc, 101-cutter mounting groove, 1011-mounting surface, 10111-mounting hole, 2-cutter, 201-milling blade, 2011-cutting part, 2012-base, 202-bearing, 3-external thread cylindrical pin, 302 chip baffle.

Description of the embodiments

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments of the present utility model, and do not limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Specific examples are as follows:

Embodiment 1 as shown in fig. 1-3, an automatically rotatable blade milling cutter head comprises a cutter disc 1, a cutter 2 and an externally threaded cylindrical pin 3. The cutter disc 1 is provided with cutter mounting grooves 101 in the circumferential direction, and 6 to 10 cutter mounting grooves 101 are preferably provided on the cutter disc 1. In the present embodiment, 6 tool mounting grooves 101 are provided in the tool tray.

In this embodiment, the cutter adopts a cylindrical structure.

In this embodiment, the tool includes a base 2012 and a cutting portion 2011 connected to the base 2012. Base 2012 is made of hard metal, and cutting portion 2011 is made of diamond or cubic boron nitride.

The cutter 2 is provided with a circular through hole along its central axis, and the inner diameter of the end portion of the circular through hole near the cutting portion 2011 becomes large, and a bearing 202 is provided there. The bearing 202 is internally connected with the external thread cylindrical pin 3, the end part of the external thread cylindrical pin 3 with external thread extends out of the circular through hole and is connected in the cutter mounting groove 101, the detachable connection of the cutter 2 and the cutter disc 1 is realized, and the cutter 2 can rotate around the external thread cylindrical pin 3. At the end of the cutting portion 2011 of the tool 2 remote from the base 2012, a ring of cutting edges is provided around the outer periphery of the cutting portion 2011 for cutting a workpiece.

In the present embodiment, a gap exists between the tool 2 and the mounting surface 1011 of the tool mounting groove 101 to avoid frictional resistance of the tool 2 and the tool disk 1.

When the cutter disc with the automatically rotatable blades is used, the cutter disc 1 drives the cutter 2 to rotate to cut a workpiece, meanwhile, the cutter 2 automatically rotates around the external thread cylindrical pin 3, the annular cutting edge on the cutter 2 cuts the workpiece, and in the process, the cutter 2 automatically rotates to enable the annular cutting edge to perform cutting work on the whole line, so that the abrasion rate is slowed down and the service life is prolonged relative to the existing cutter disc with the automatically rotatable blades. Meanwhile, the cutter 2 is detachably connected to the cutter disc 1, when the cutter 2 is seriously worn, the cutter 2 can be independently replaced relative to the existing cutter disc and cutter integrated structure, so that the cost is saved.

Further, a chip blocking plate 301 is provided at the end of the male cylindrical pin 3 near the bearing 202. Specifically, a straight groove or a cross groove is formed in the end portion of the external thread cylindrical pin 3, and the external thread cylindrical pin 3 is conveniently connected to the cutter disc 1 through the straight groove or the cross groove. The chip baffle 301 can avoid cutting and stacking in a straight groove or a cross groove of the external thread cylindrical pin 3, thereby influencing the replacement of the cutter 2.

Further, a threaded hole 10111 is formed in the mounting surface 1011, the threaded hole 10111 is in threaded fit with the external thread cylindrical pin 3, the threaded direction of the threaded hole is opposite to the rotating direction of the cutter disc 1 during working, the conditions of loosening and the like of the external thread cylindrical pin 3 during machining are prevented, and the use safety is guaranteed.

Further, the mounting surface 10111 of the tool mounting groove 1011 is inclined with respect to the center axis of the tool disk 1, and the sharpness of the cutting edge is ensured at the time of cutting.

In the present embodiment, the inclination angle of the mounting surface 10111 is α, and the range of α is preferably 0 ° to 25 °.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified in various ways, or of being applied to other applications without modification, without departing from the scope of the utility model.

Claims (6)

1. The cutter disc comprises a cutter disc, a cutter mounting groove and a cutter, wherein the cutter mounting groove is formed in the cutter disc, the cutter is connected with the cutter mounting groove, the cutter is characterized in that a central through hole is formed in the cutter, an external thread cylindrical pin penetrates through the central through hole to be connected with a bearing arranged in the central through hole, and the cutter is connected in the cutter mounting groove through the external thread cylindrical pin; the cutter end face is provided with a cutting edge around the periphery.

2. The automatically rotatable insert milling cutter disc of claim 1 wherein the end of the externally threaded cylindrical pin is provided with a chip guard.

3. The automatically rotatable insert milling cutter disc of claim 1 wherein the number of cutter mounting slots is 6-10.

4. The automatically rotatable insert milling cutter disc of claim 1 wherein the cutter disc is provided with a threaded bore for mating with the externally threaded cylindrical pin, the threads of the threaded bore and the externally threaded cylindrical pin being in a direction opposite to the direction of rotation of the cutter disc when in operation.

5. The automatically rotatable insert milling cutter disc of claim 1 wherein the mounting surface of the cutter mounting slot is disposed obliquely relative to the central axis of the cutter disc.

6. The automatically rotatable insert milling cutter disc of claim 5 wherein the mounting surface has an inclination angle in the range of 0 ° to 25 °.