CN218532935U

CN218532935U - Tooth locking head type indexable shallow hole drill

Info

Publication number: CN218532935U
Application number: CN202121141328.7U
Authority: CN
Inventors: 姚国阳
Original assignee: Bestool Tool Manufacturing Co ltd
Current assignee: Bestool Tool Manufacturing Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2023-02-28
Anticipated expiration: 2031-05-26

Abstract

The application provides a tooth locking head type indexable shallow hole drill which comprises a tooth locking head and a drill body arranged at the end part of the tooth locking head; a blade device is arranged at one end of the drill body, which is far away from the tooth locking head; the side wall of the locking tooth head is provided with external threads, and one end of the locking tooth head, which is far away from the drill body, is provided with a square hole. The application provides a but lock tooth hair style transposition shallow hole bores commonality strong, be convenient for and handle of a knife installation and dismantlement work within a definite time, reduced the activity duration of installation or change transposition shallow hole and bore, improved work efficiency.

Description

Tooth locking head type indexable shallow hole drill

Technical Field

The disclosure generally relates to the field of processing of a locking tooth head type shallow hole, in particular to a locking tooth head type indexable shallow hole drill.

Background

An indexable shallow hole drill is a high-efficiency drilling tool, which is usually mounted on a machine tool; the guide hole drilling machine has the advantages of good rigidity, capability of realizing higher feeding rate, capability of directly processing a workpiece, no need of drilling a guide hole in the center in the processing process and the like.

In the prior art, an indexable shallow hole drill is usually installed on a machine tool through a specific interface (such as a CAPTO interface or an HSK interface), which causes high time cost and low working efficiency in the process of changing the drill bit when the size or the model of the drill bit needs to be frequently changed.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a locking bit type indexable shallow hole drill which is easy to replace and is beneficial to improving the replacement efficiency and the working efficiency.

The application provides a locking tooth head type indexable shallow hole drill which comprises a locking tooth head and a drill body arranged at the end part of the locking tooth head; a blade device is arranged at one end of the drill body, which is far away from the tooth locking head; the side wall of the lock tooth head is provided with external threads, and one end of the lock tooth head, which is far away from the drill body, is provided with a square hole.

According to the technical scheme provided by the embodiment of the application, the blade device comprises a first blade and a second blade; a first chip groove and a second chip groove are respectively formed in two sides of the drill body; a first cutter groove used for installing the first blade is formed in one end, far away from the tooth locking head, of the side wall of the first cutter groove; and a second tool groove for mounting the second blade is formed in the side wall of the second chip groove and at one end, far away from the tooth locking head, of the second chip groove.

According to the technical scheme provided by the embodiment of the application, the tool bit of the first blade is higher than that of the second blade.

According to the technical scheme provided by the embodiment of the application, the first blade and the second blade are obliquely arranged; one side of the first blade close to the central axis of the drill body is lower than one side of the first blade far away from the central axis of the drill body; one side of the second blade close to the central axis of the drill body is higher than one side of the second blade far away from the central axis of the drill body.

According to the technical scheme provided by the embodiment of the application, a limiting plate is arranged between the drill body and the lock tooth head; the limiting plate is characterized in that an inclined plane is arranged on the side wall of the limiting plate, and the first chip discharge groove and the second chip discharge groove extend to the inclined plane.

According to the technical scheme provided by the embodiment of the application, the main deflection angle of the first blade is 5 degrees, and the radial balance angle is 5 degrees.

According to the technical scheme provided by the embodiment of the application, the main deflection angle of the second blade is 5 degrees.

According to the technical scheme that this application embodiment provided, the brill body is kept away from lock tooth head one end is equipped with the apopore.

The beneficial effect of this application lies in: during the use, set up the screw thread through-hole on the handle of a knife of lathe, pass through interior angle spanner the screw thread through-hole and insert to in the square hole, through rotating interior angle spanner for the external screw thread on the lock pressure head lateral wall carries out threaded connection with the internal thread of screw thread through-hole, realizes the fixed connection of transposition shallow hole drill and lathe.

Through set up the external screw thread on the lock pressure head is kept away from drill body one end sets up the square hole for the but, the commonality of the installation and the dismantlement work between but the transposition shallow hole of lock tooth hair style that this application provided, but the commonality is strong, but the installation has been reduced or the operation time of changing the transposition shallow hole and boring the handle of a knife, has improved work efficiency.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of a locking bit type indexable shallow hole drill provided by the present application;

FIG. 2 is a schematic view of an installation structure of the locking-bit-type indexable shallow hole drill and the tool shank 13 shown in FIG. 1;

FIG. 3 is a schematic perspective view of the locking bit type indexable shallow hole drill shown in FIG. 1 from another perspective;

FIG. 4 is a left side view of the locking bit type indexable shallow hole drill shown in FIG. 3;

FIG. 5 is a rear view of the locking bit type indexable shallow hole drill shown in FIG. 3;

FIG. 6 is a front view of the locking bit type indexable shallow hole drill shown in FIG. 3;

fig. 7 is a schematic principal deflection angle diagram of the first blade 4 and the second blade 5;

FIG. 8 is a schematic view of the radial balance angle of the first blade 4

Fig. 9 is a schematic view of the mounting structure of the first blade 4 and the second blade 5.

Reference numbers in the figures:

1. a tooth locking head; 2. a drill body; 3. a square hole; 4. a first blade; 5. a second blade; 6. a first chip discharge groove; 7. a second chip groove; 8. a first knife slot; 9. a second knife slot; 10. a limiting plate; 11. a bevel; 12. a water outlet hole; 13. a knife handle; 14. a vertical plane; 15. an external thread; 16. a first station; 17. a second station; 18. a third station; 19. a fourth station; 20. a vertical reference line; 21. a horizontal reference line.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Please refer to fig. 1, which is a schematic structural diagram of a locking-bit-type indexable shallow hole drill provided by the present application, including a locking bit 1 and a drill body 2 mounted at an end of the locking bit 1; a blade device is arranged at one end of the drill body 2, which is far away from the locking tooth head 1; the side wall of the lock tooth head 1 is provided with an external thread 15, and one end of the lock tooth head 1, which is far away from the drill body 2, is provided with a square hole 3.

Specifically, the square hole 3 is a hexagonal hole.

The working principle is as follows: when the indexable shallow hole drill is used, as shown in fig. 2, a threaded through hole is formed in a shank 13 of the machine tool, an inner hexagonal wrench is inserted into the square hole 3 through the threaded through hole, and the inner hexagonal wrench is rotated to enable the external thread 15 on the side wall of the locking and pressing head 1 to be in threaded connection with the internal thread of the threaded through hole, so that the indexable shallow hole drill is fixedly connected with the machine tool.

Through set up the external screw thread on the lock pressure head 1 is kept away from 2 one end of the drill body sets up square hole 3 for the but transposition shallow hole of lock tooth head formula bores that this application provided, the commonality is strong, but the installation and the dismantlement work between transposition shallow hole of being convenient for bore 13, has reduced the installation or has changed the operating time of but transposition shallow hole and bore, has improved work efficiency.

Wherein, in a preferred embodiment of the blade arrangement, as shown in fig. 3 to 6, the blade arrangement comprises a first blade 4 and a second blade 5; a first chip discharge groove 6 and a second chip discharge groove 7 are respectively formed in two sides of the drill body 2; a first tool groove 8 for mounting the first blade 4 is formed in the side wall of the first tool groove 6 and at one end far away from the tooth locking head 1; and a second tool groove 9 for mounting the second blade 5 is formed in the side wall of the second chip groove 7 and at one end far away from the tooth locking head 1.

Specifically, the tool bits on the first blade 4 and the second blade 5 extend out of the end face of the drill body 2.

Specifically, the first chip groove 6 and the second chip groove 7 are straight groove structures.

Specifically, the first blade 4 is connected with the first blade groove 8 through a screw, and the second blade 5 is connected with the second blade groove 9 through a screw;

specifically, the thickness of the first blade 4 is smaller than the groove depth of the first cutter groove 8, and the thickness of the second blade 5 is smaller than the groove depth of the second cutter groove 9, so that blocking and interference between the first blade 4 and the second blade 5 and chips in a chip discharge groove are avoided, and the blade edge is protected.

Through the structure, when the first blade 4 and the second blade 5 cut a drill hole in use, chips generated in cutting can be discharged through the first chip discharge groove 6 and the second chip discharge groove 7, and the drill hole is convenient to drill. The first blade 4, the second blade 5 and the cutter groove are detachably and fixedly connected through screws, so that when the blades are damaged, the blades can be independently replaced, and the replacement cost is reduced.

In a preferred embodiment of the first blade 4 and the second blade 5, the cutting head of the first blade 4 is higher than the cutting head of the second blade 5. So that drilling can be facilitated.

In the preferred embodiment of the first blade 4 and the second blade 5, as shown in fig. 3 and 5, the first blade 4 and the second blade 5 are obliquely arranged; one side of the first blade 4 close to the central axis of the drill body 2 is lower than one side of the first blade 4 far away from the central axis of the drill body 2; the side of the second blade 5 close to the central axis of the drill body 2 is higher than the side of the second blade 5 far from the central axis of the drill body 2. Namely: the outer side of the first blade 4 is high, and the inner side of the first blade is low; the second blade 5 is low at the outer side and high at the inner side. By arranging the first and

second blades

4 and 5 to be relatively inclined in opposite directions, the drilling efficiency can be improved.

In the preferred embodiment of the first blade 4 and the second blade 5, as shown in fig. 9, the end surface of the drill body 2 far away from the locking ram 1 is divided into four stations by a vertical reference line 20 and a horizontal reference line 21 which are perpendicular to each other; the four stations are respectively a first station 16, a second station 17, a third station 18 and a fourth station 19 along the anticlockwise direction;

the second blade 5 spans the second station 17 and the third station 18 and is kept at a distance from a vertical reference line 20;

the first blade 4 is arranged along the second blade 5 in a counterclockwise direction, spans the third station 18 and the fourth station 19 and is close to the horizontal reference line 21, and the side wall of the first blade 4 close to the horizontal reference line 21 forms an acute angle with the horizontal reference line 21.

Through above-mentioned structure for in the tool bit cutting process, the atress is steady, can not shake the sword, and the aperture is better.

In a preferred embodiment of the drill body 2, a limit plate 10 is installed between the drill body 2 and the locking thread head 1; be equipped with inclined plane 11 on the limiting plate 10 lateral wall, first chip groove 6, second chip groove 7 extend to on the inclined plane 11.

Specifically, two vertical planes 14 are symmetrically arranged on the side wall of the limiting plate 10, so that a wrench can be conveniently clamped into the two vertical planes 14 and the drill body 2 can be rotated, and the locking and pressing head 1 is in threaded connection with a tool shank 13 on a machine tool.

Through setting up limiting plate 10 makes it is right lock tooth head 1 has played spacing effect, through set up inclined plane 11 on the limiting plate 10 will simultaneously first chip groove 6 and second chip groove 7 extend to on the inclined plane 11 for piece in the cutting process can be followed first chip groove 6 and second chip groove 7 can pass through smoothly and discharge, avoids the piece to block up.

Wherein, in the preferred embodiment of the first blade 4, the first blade 4 has a principal declination angle of 5 ° and a radial equilibrium angle of 5 °.

Specifically, as shown in fig. 7, the principal declination is the angle between the straight edge of the blade and the horizontal line.

Specifically, as shown in fig. 8, the radial equilibrium angle is the angle between the cutting edge and the horizontal reference line 21.

Wherein in a preferred embodiment of the second blade 5 has a principal angling of 5 °.

In a preferred embodiment of the drill body 2, a water outlet hole 12 is formed at one end of the drill body 2, which is far away from the locking thread head 1. Through setting apopore 12 but be convenient for indexable shallow drill drilling in-process cooling and chip removal.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention according to the present application is not limited to the specific combination of the above-mentioned features, but also covers other embodiments where any combination of the above-mentioned features or their equivalents is made without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. The utility model provides a but lock tooth hair style transposition shallow hole bores which characterized in that: comprises a locking tooth head (1) and a drill body (2) arranged at the end part of the locking tooth head (1); a blade device is arranged at one end of the drill body (2) far away from the tooth locking head (1); the lock tooth head (1) is provided with an external thread (15) on the side wall, and the lock tooth head (1) is far away from one end of the drill body (2) and is provided with a square hole (3).

2. The bit-locking type indexable shallow hole drill as claimed in claim 1, wherein: the blade arrangement comprises a first blade (4) and a second blade (5); a first chip removal groove (6) and a second chip removal groove (7) are formed in two sides of the drill body (2) respectively; a first cutting groove (8) for mounting the first cutting blade is formed in the side wall of the first cutting groove (6) and at one end far away from the tooth locking head (1); and a second tool groove (9) for mounting the second blade (5) is formed in one end, far away from the locking tooth head (1), of the side wall of the second chip groove (7).

3. The bit-locking type indexable shallow hole drill as claimed in claim 2, wherein: the cutter head of the first blade (4) is higher than that of the second blade (5).

4. The bit-locking type indexable shallow hole drill as claimed in claim 3, wherein: the first blade (4) and the second blade (5) are obliquely arranged; one side of the first blade (4) close to the central axis of the drill body (2) is lower than one side of the first blade (4) far away from the central axis of the drill body (2); the side, close to the central axis of the drill body (2), of the second blade (5) is higher than the side, far away from the central axis of the drill body (2), of the second blade (5).

5. The locking head type indexable shallow hole drill as claimed in claim 2, characterized in that: a limiting plate (10) is arranged between the drill body (2) and the tooth locking head (1); be equipped with inclined plane (11) on limiting plate (10) lateral wall, first chip groove (6), second chip groove (7) extend to on inclined plane (11).

6. The bit-locking type indexable shallow hole drill as claimed in claim 2, wherein: the main declination angle of the first blade (4) is 5 degrees, and the radial balance angle is 5 degrees.

7. The locking bit type indexable shallow hole drill as claimed in claim 2, characterized in that: the second blade (5) has a principal rake angle of 5 °.

8. The locking-bit-type indexable shallow hole drill as claimed in any one of claims 1 to 7, wherein: one end of the drill body (2) far away from the lock tooth head (1) is provided with a water outlet hole (12).