CN218983218U

CN218983218U - Indexable groove-like knife

Info

Publication number: CN218983218U
Application number: CN202222829964.XU
Authority: CN
Inventors: 康梦利; 邢建军; 李和鑫
Original assignee: Funik Ultrahard Material Co Ltd
Current assignee: Funik Ultrahard Material Co Ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-05-09
Anticipated expiration: 2032-10-26

Abstract

The utility model provides an indexable profiling cutter which comprises a cutter bar, a cutter head supporting seat arranged at one end of the cutter bar, a cutter groove arranged at the top of the cutter head supporting seat and an indexable cutter head arranged in the cutter groove through a cutter head screw and a pressing plate mechanism, wherein a plurality of profiling blades are arranged on the indexable cutter head, a plurality of grooves are formed in the bottom surface of the cutter groove, and a plurality of bosses matched with the grooves are arranged on the upper surface and the lower surface of the indexable cutter head; the pressing plate mechanism comprises a pressing plate screw hole formed in the cutter bar and a pressing plate connected with the pressing plate screw hole through a pressing plate screw, and a groove matched with the boss is formed in the bottom surface of the front section of the pressing plate. The indexable profiling groove cutter can avoid the conditions that the precision of a workpiece is poor and the cutter blade is easy to damage caused by shaking when the cutter head is used.

Description

Indexable groove-like knife

Technical Field

The utility model relates to the field of cutting tools, in particular to an indexable simulated slotting cutter.

Background

At present, in the process of processing a workpiece by using a cutter, the cutting speed is continuously changed in the processing process, particularly, the cutting speed is continuously changed from the maximum value to zero in the cutting process, the cutting force is continuously changed, one side of the processed workpiece rotates, the cutter of the groove cutter continuously cuts into the workpiece, an Archimedean spiral surface is actually formed on the surface of the workpiece, and the front angle and the rear angle are continuously changed in the actual processing, so that the process is more complicated. Therefore, in metal cutting, the insert receives a large cutting force and the cutting force is continuously changed during cutting and grooving, and if the holding force is insufficient, the grooving tool is liable to shake, which affects the machining accuracy.

In order to solve the problem of insufficient clamping force of the blade, the utility model patent application with the application number 200810143503.9 discloses a special cutter holder for an indexable blade, which comprises a cutter holder, a clamping bolt and a clamping piece, wherein the cutter holder is provided with an indexable blade mounting part and a bolt mounting hole, the clamping piece is arranged above the cutter holder, a through hole is arranged on the clamping piece, the clamping bolt is sleeved in the through hole and is in threaded connection with the bolt mounting hole, a compression spring is sleeved on the clamping bolt and is positioned between the cutter holder and the clamping piece, a first inclined plane group is arranged at the position, connected with the clamping piece, of the rear end of the cutter holder, and a second inclined plane group which can be meshed with the first inclined plane group on the cutter holder is arranged at the position, connected with the cutter holder, of the rear end of the clamping piece. The special tool holder for the indexable insert has the advantages of ensuring that the clamped indexable insert is pushed downwards and inwards, firmly clamping the indexable insert on the tool holder and uniformly distributing clamping force. However, the indexable insert-specific toolholder is relatively inefficient in that it can only hold one insert at a time.

In order to solve the above problems, an ideal technical solution is always sought.

Disclosure of Invention

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the indexable profiling slotting cutter comprises a cutter bar, a cutter head supporting seat arranged at one end of the cutter bar, a cutter head slot arranged at the top of the cutter head supporting seat and an indexable cutter head arranged in the cutter head slot through a cutter head screw and a pressing plate mechanism, wherein a plurality of profiling blades are arranged on the indexable cutter head, a plurality of grooves are formed in the bottom surface of the cutter head, and a plurality of bosses matched with the grooves are arranged on the upper surface and the lower surface of the indexable cutter head; the pressing plate mechanism comprises a pressing plate screw hole formed in the cutter bar and a pressing plate connected with the pressing plate screw hole through a pressing plate screw, and a groove matched with the boss is formed in the bottom surface of the front section of the pressing plate.

Based on the above, the indexable tool bit is a triangular tool bit, the vertex angle ends of the triangular tool bit are all provided with the profiling blade, and the upper surface and the lower surface of the triangular tool bit are respectively provided with three bosses.

Based on the above, the tool bit support base is a triangular tool bit support base.

Based on the above, for stable support, the front end of the triangular cutter head supporting seat is provided with a cutter blade supporting column.

Based on the above, the bit screw is disposed at the center of the triangular bit.

Based on the above, the boss on the upper surface of the indexable tool bit is disposed corresponding to the boss on the lower surface of the indexable tool bit.

Compared with the prior art, the indexable profiling groove cutter has substantial characteristics and progress, and particularly, the indexable profiling groove cutter has the advantages that the contact surface between the cutter head and the cutter groove is designed to be the result of matching a plurality of irregularly-shaped bosses with a plurality of irregularly-shaped grooves, so that the degree of freedom of the cutter head can be effectively limited, the clamping force of the cutter head is enhanced, and the conditions that the precision of a workpiece is poor and the cutter blade is easy to damage due to shaking when the cutter head is used are avoided. Meanwhile, the plurality of blades are arranged on one cutter head, so that the utilization rate of the blades is effectively increased, and the use cost is reduced.

Furthermore, the grooves which can be matched with the irregularly-shaped bosses on the cutter head are formed in the lower portion of the pressing plate, so that the contact area between the pressing plate and the cutter head is increased, and the clamping force of the pressing plate is increased.

Drawings

Fig. 1 is a schematic diagram of an indexable profiling slotting cutter splitting structure provided by the utility model.

Fig. 2 is a schematic diagram of the overall structure of the indexable profiling groove cutter provided by the utility model.

Fig. 3 is a schematic view of an indexable insert head structure in an indexable profiled slotting cutter provided by the utility model.

In the figure: 1. a cutter bar; 2. a pressing plate; 3. a pressing plate screw; 4. a cutter head screw; 5. a boss; 6. profiling blades; 7. a groove; 8. a knife slot; 9. indexable tool bits; 10. a cutter head supporting seat; 11. a blade support column; 12. screw holes of the tool bit.

Detailed Description

Example 1

The present embodiment provides an indexable profiling slotting cutter, as shown in fig. 1, 2 and 3, which comprises a cutter bar 1, a cutter head supporting seat 10 arranged at one end of the cutter bar 1, a cutter slot 8 arranged at the top of the cutter head supporting seat 10, and an indexable cutter head 9 arranged in the cutter slot 8 through a cutter head screw 4 and a pressing plate mechanism.

The indexable tool bit 9 is provided with a plurality of profiling blades 6. The center of the indexable tool bit 9 is provided with a tool bit screw hole 12. The bottom surface of the tool groove 8 is provided with a plurality of grooves 7, and the upper surface and the lower surface of the indexable tool bit 9 are respectively provided with a plurality of bosses 5 matched with the grooves 7.

The pressing plate mechanism comprises a pressing plate screw hole formed in the cutter bar 1 and a pressing plate 2 connected with the pressing plate screw hole through a pressing plate screw 3. The bottom surface of the front section of the pressing plate 2 is provided with a groove matched with the boss 5.

Specifically, in this embodiment, the indexable cutting insert 9 is a triangular cutting insert, and the tip angle ends of the triangular cutting insert are all provided with the profiling cutting insert 6. The upper surface and the lower surface of the triangular cutter head are respectively provided with three bosses 5. The tool bit support seat 10 is a triangular tool bit support seat.

For stable support, the front end of the triangular tool bit support seat is provided with a blade support column 11. The cutter head screw 4 is arranged in the center of the triangular cutter head.

Example 2

The embodiment provides an indexable profiling groove cutter, and the specific structure is different from that of the embodiment 1 in that: in this embodiment, the boss on the upper surface of the indexable insert head is disposed corresponding to the boss on the lower surface of the indexable insert head.

The utility model provides an indexable profiling groove cutter body mounting step and an indexable operation step, which are as follows:

when in installation, the boss on the lower surface of the cutter head corresponds to the groove on the cutter groove, so that the boss on the lower surface of the cutter head is ensured to be installed in the groove on the cutter groove, then the cutter head is fixed on the cutter groove by adopting a cutter head screw,

and finally, the groove on the pressing plate corresponds to the boss on the upper surface of the tool bit, and the tool bit is pressed on the top surface of the tool slot by using the pressing plate screw and the pressing plate, so that the fixation and the installation are completed.

When the tool bit is indexed, the clamp plate screw is loosened firstly, the clamp plate and the tool bit are loosened, then the tool bit is manually rotated, a new boss at the bottom of the tool bit is matched with a groove on the tool groove, so that a new blade is rotated to a workpiece machining position, and finally the clamp plate screw is screwed down, so that the blade indexing operation is completed.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. The utility model provides an indexable profiling groove cutter, includes the cutter arbor, sets up at the tool bit supporting seat of cutter arbor one end, sets up the tool bit of tool bit supporting seat top and through tool bit screw and clamp plate mechanism setting up indexable tool bit in the tool bit, its characterized in that:

the indexable tool bit is provided with a plurality of profiling blades, the bottom surface of the tool slot is provided with a plurality of grooves, and the upper surface and the lower surface of the indexable tool bit are provided with a plurality of bosses matched with the grooves; the pressing plate mechanism comprises a pressing plate screw hole formed in the cutter bar and a pressing plate connected with the pressing plate screw hole through a pressing plate screw, and a groove matched with the boss is formed in the bottom surface of the front section of the pressing plate.

2. The indexable profiling groove cutter of claim 1 wherein: the indexable tool bit is a triangular tool bit, the vertex angle ends of the triangular tool bit are provided with profiling blades, and the upper surface and the lower surface of the triangular tool bit are respectively provided with three bosses.

3. The indexable profiling groove cutter of claim 2 wherein: the tool bit support seat is a triangular tool bit support seat.

4. The indexable profiling groove cutter of claim 3 wherein: the front end of the triangular tool bit support seat is provided with a blade support column.

5. An indexable profiling groove cutter according to claim 2 or 3, characterized in that: the tool bit screw is arranged in the center of the triangular tool bit.

6. The indexable profiling groove cutter of claim 5 wherein: the boss positioned on the upper surface of the indexable tool bit is arranged corresponding to the boss positioned on the lower surface of the indexable tool bit.