CN211464955U

CN211464955U - End milling cutter

Info

Publication number: CN211464955U
Application number: CN201922457799.8U
Authority: CN
Inventors: 丁佳培
Original assignee: Wuhan Punok Precision Tools Co ltd
Current assignee: Wuhan Punok Precision Tools Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-11
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to an end mill technical field, and disclose an end mill, solved present end mill helical structure if damage, processing replacement cost is higher to and the problem that spiral groove department chip removal is relatively poor and the radiating effect is relatively poor, it includes arbor, tool bit, recess, arcwall face, fixed slot, bolt, blade, protection groove and radius angle, arbor one end is connected with the tool bit, the utility model discloses, through the setting of arbor, tool bit, recess, arcwall face and blade, recess chip holding space is big, the smear metal that the blade cutting produced during the cutting is located the recess, derives along the arcwall face under the rotatory effort, the chip removal is effectual, thereby avoids the smear metal to block up, makes the radiating effect good simultaneously; through the design of the fixed slot and the blade and the bolt seted up in the tool bit for the blade can dismantle the change fast when damaging, compares in current whole change, and this kind of novel mode of changing is carried out to blade part, the effectual processing cost that has reduced.

Description

End milling cutter

Technical Field

The utility model belongs to the technical field of end milling cutter, specifically be an end milling cutter.

Background

The end mill is the most used milling cutter on a numerical control machine tool, and cutting cutters are arranged on the cylindrical surface and the end surface of the end mill, and can cut simultaneously or independently. The milling cutter is mainly used for plane milling, groove milling, step surface milling and profiling milling.

The existing end milling cutter is usually of a spiral groove structure, acting force is mostly concentrated on the tip end of a cutter head when cutting, the phenomenon of collapse is easy to occur when large vibration exists, the whole cutter cannot be used after collapse, the whole cutter needs to be integrally replaced, the cost is high, in addition, the spiral structure is small in the space of the groove, chips are easy to stack, the chip removal function is poor, heat concentration is easy to cause, and the cooling effect is poor.

Disclosure of Invention

To the above circumstances, for overcoming prior art's defect, the utility model provides an end mill, effectual solved present end mill helical structure if when damaging, processing replacement cost is higher to and the relatively poor and relatively poor problem of radiating effect of spiral groove department chip removal.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an end mill, includes arbor, tool bit, recess, arcwall face, fixed slot, bolt, blade, protection groove and radius angle, arbor one end is connected with the tool bit, and tool bit upper end circumference is seted up flutedly, and the arcwall face has been seted up to recess lower part one side, and the fixed slot has been seted up to recess upper portion one side, and the fixed slot is inside to have the blade through bolted connection, and the protection groove has been seted up to blade one end correspondence fixed slot one side.

Preferably, the external edges of the upper end and the lower end of the cutter head are provided with rounded corners.

Preferably, a through hole is formed in the middle of the blade in a penetrating mode, and a connecting hole is formed in the side wall of the groove corresponding to the through hole.

Preferably, the position of the knife tip protrudes out of the upper end surface of the knife tip after the blade is installed.

Preferably, the number of the grooves is three, the three grooves are arranged at equal angles relative to the center of the cutter head, and the opening angle between every two adjacent grooves is 120 degrees.

Preferably, the blade is made of high-speed steel.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses, through the setting of arbor, tool bit, recess, arcwall face and blade, the recess holds the bits space greatly, and the smear metal that the blade cutting produced during the cutting is located the recess, derives along the arcwall face under the rotatory effort, and the chip removal is effectual to avoid the smear metal to block up, make the radiating effect good simultaneously;

(2) the design of fixed slot and blade and bolt through seting up in the tool bit for the blade can dismantle the change fast when damaging, compares in current whole change, and this kind of novel mode of changing is carried out to blade part, the effectual processing cost that has reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention;

in the figure: 1. a cutter shaft; 2. a cutter head; 3. a groove; 4. an arc-shaped surface; 5. fixing grooves; 6. a bolt; 7. a blade; 8. a protective groove; 9. and (6) rounding off.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, given by figure 1, figure 2 and figure 3, the utility model discloses an arbor 1, tool bit 2, recess 3, arcwall face 4, fixed slot 5, bolt 6, blade 7, protection groove 8 and

radius

9, 1 one end of arbor is connected with tool bit 2, recess 3 has been seted up to tool bit 2 upper end circumference, be used for discharging the smear metal, arcwall face 4 has been seted up to recess 3 lower part one side, be used for deriving the smear metal arc, fixed slot 5 has been seted up to 3 upper portion one side of recess, be used for installing blade 7, fixed slot 5 is inside to be connected with blade 7 through bolt 6, be used for cutting, protection groove 8 has been seted up to corresponding fixed slot 5 one side of blade 7 one end, avoid the most advanced damage of blade 7.

Second, on the basis of first embodiment, the outside edge in both ends has all been seted up fillets 9 about tool bit 2, avoids marginal edges and corners to cause the damage.

In the third embodiment, on the basis of the first embodiment, a through hole is formed in the middle of the blade 7 in a penetrating manner, a connecting hole is formed in the side wall of the groove 3 corresponding to the through hole, and the bolt 6 can conveniently penetrate through the through hole and be fixedly connected with the connecting hole.

In the fourth embodiment, after the insert 7 is mounted, the cutting edge protrudes from the upper end surface of the tip 2.

In the fifth embodiment, on the basis of the first embodiment, the number of the grooves 3 is three, the three grooves 3 are arranged at equal angles with respect to the center of the tool tip 2, and the opening angle between the adjacent grooves 3 is 120 °.

Sixth embodiment, based on the first embodiment, the blade 7 is made of high speed steel material, has good comprehensive performance, and is easy to sharpen into a sharp cutting edge.

The working principle is as follows: when the cutting tool is used, the blade 7 is installed in the fixing groove 5 through the bolt 6, then the tool is installed on the driving mechanism, the cutting tool is driven by the driving mechanism to rotate at a high speed to cut a workpiece, chips generated by cutting of the blade 7 during cutting are located in the groove 3, and the chips are led out along the arc-shaped surface 4 under the action of rotating force, so that the blockage of the chips is avoided, and meanwhile, the heat dissipation effect is good.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an end mill, includes arbor (1), tool bit (2), recess (3), arcwall face (4), fixed slot (5), bolt (6), blade (7), protection groove (8) and radius angle (9), its characterized in that: arbor (1) one end is connected with tool bit (2), and tool bit (2) upper end circumference is seted up flutedly (3), and arcwall face (4) have been seted up to recess (3) lower part one side, and fixed slot (5) have been seted up to recess (3) upper portion one side, and fixed slot (5) are inside to be connected with blade (7) through bolt (6), and blade (7) one end corresponds fixed slot (5) one side and has seted up protection groove (8).

2. An end mill according to claim 1, characterized in that: the external edges of the upper end and the lower end of the cutter head (2) are provided with fillets (9).

3. An end mill according to claim 1, characterized in that: the middle part of the blade (7) is provided with a through hole in a penetrating way, and the side wall of the groove (3) is provided with a connecting hole corresponding to the through hole.

4. An end mill according to claim 1, characterized in that: the position of the tool nose of the blade (7) protrudes out of the upper end surface of the tool bit (2) after the blade is installed.

5. An end mill according to claim 1, characterized in that: the number of the grooves (3) is three, the three grooves (3) are arranged at equal angles relative to the center of the tool bit (2), and the opening angle between every two adjacent grooves (3) is 120 degrees.

6. An end mill according to claim 1, characterized in that: the blade (7) is made of high-speed steel.