CN213257314U

CN213257314U - Composite self-drilling type twist drill

Info

Publication number: CN213257314U
Application number: CN202022074489.0U
Authority: CN
Inventors: 朱龙飞
Original assignee: Zhenjiang Longrun Tools Co ltd
Current assignee: Zhenjiang Longrun Tools Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-25
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a compound formula of boring auger bit certainly relates to drill bit technical field, the utility model discloses a top device, equipment, neck device, stalk portion device and change device, top device include the connecting block, and equipment includes the cutting body, cuts a body one end and a connecting block surface connection, and the neck device includes the neck body, cuts the body and neck body coupling, and the stalk portion device includes the handle body and internal thread, and another surface of the neck body welds with handle body one end, changes the device and includes the threaded rod, a plurality of threaded rods all with the interior screw-thread normal running fit. The utility model relates to a compound formula of boring auger bit certainly, the coating film layer is the corundum coating, and vertical chip removal hole runs through whole equipment and neck device, through the work chip removal hole and horizontal chip removal hole and vertical chip removal hole be connected, reaches the purpose that makes things convenient for the chip removal, passes through threaded rod and internal screw thread normal running fit earlier, and rethread fixed column will be changed the device and fix to the handle body on, reach the purpose of changing connection handle.

Description

Composite self-drilling type twist drill

Technical Field

The utility model relates to a drill bit technical field, in particular to compound from boring formula fluted drill.

Background

Twist drills are tools that drill round holes in a workpiece by rotary cutting thereof about a fixed axis. The flute is spiral and shaped like twist. Twist drills are tools that drill round holes in a workpiece by rotary cutting thereof about a fixed axis. The scraps are named as spiral scraps and shaped like a fried dough twist. Spiral flutes can have two, three or more flutes, but two flutes are most common. Twist drills can be used clamped on hand-held drilling tools, both manual and electric, or drilling, milling, turning and even machining centers. The bit material is typically high speed tool steel or cemented carbide.

The drill plays an important role in production and life, but the existing twist drill has the defects of inconvenient chip removal and difficult replacement of a connecting handle, so that the composite self-drilling twist drill is provided.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a composite self-drilling twist drill, which can effectively solve the problems of inconvenient chip removal and difficult replacement of the connection handle in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model relates to a compound self-drilling twist drill, including top device, equipment, neck device, stalk portion device and change device, the top device includes the connecting block, the equipment includes the cutting body, cutting body one end and a connecting block surface connection, the neck device includes the neck body, the cutting body other end and a neck body surface connection, the stalk portion device includes the handle body and internal thread, another surface of neck body welds with handle body one end, it includes the threaded rod, and is a plurality of the threaded rod all with the interior screw-thread normal running fit.

Preferably, the top device further comprises a cone and a coating layer, one surface of the cone is welded with the other surface of the connecting block, the inner surface of the coating layer is connected with the outer surface of the cone, and the coating layer can protect the cone.

Preferably, the working device further comprises a plurality of working chip removal holes, the side surface of the cutting body is provided with the working chip removal holes, and the cutting body can process the workpiece.

Preferably, the neck device still includes horizontal chip removal hole and vertical chip removal hole, the internal portion of neck is equipped with vertical chip removal hole, the side surface of neck is equipped with horizontal chip removal hole, and vertical chip removal hole and horizontal chip removal hole can conveniently the chip removal.

Preferably, the handle device further comprises a fixing column, a mounting hole is formed in one surface of the handle body, an internal thread is formed in the inner surface of the mounting hole, a first through hole is formed in the side surface of the handle body, the fixing column is in sliding fit with the first through hole, and the replacing device can be fixed by the fixing column.

Preferably, the replacing device further comprises a fixing hole and a fixing handle, a second through hole is formed in the side surface of the threaded rod, the fixing column is in sliding fit with the second through hole, the position of the first through hole is matched with the second through hole, one end of the threaded rod is welded to the surface of the fixing handle, and the replacing device can replace connecting handles of different models.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in, through setting up the chip removal hole, vertical chip removal hole runs through whole equipment and neck device, through work chip removal hole and horizontal chip removal hole and vertical chip removal hole be connected, reaches the purpose of making things convenient for the chip removal.

2. The utility model discloses in, through setting up internal thread and dead lever, earlier through threaded rod and internal screw thread normal running fit, the rethread dead lever will be changed the device and fix to the handle body on, reach the purpose of changing connection handle.

Drawings

Fig. 1 is a schematic view of the overall structure of a composite self-drilling twist drill according to the present invention;

fig. 2 is a schematic structural view of a composite self-drilling twist drill according to the present invention;

fig. 3 is a left side view schematic structural diagram of the composite self-drilling twist drill of the present invention;

FIG. 4 is a schematic view of the cross-sectional view taken along line A-A of FIG. 3 according to the present invention;

fig. 5 is a schematic structural view of the replacing device of the composite self-drilling twist drill of the present invention.

In the figure: 100. a top assembly; 101. a cone; 102. connecting blocks; 103. coating a film layer; 200. a working device; 201. a cutting body; 202. a working chip removal hole; 300. a neck device; 301. a neck body; 302. a transverse chip removal hole; 303. a longitudinal chip removal hole; 400. a handle device; 401. a handle body; 402. an internal thread; 403. fixing a column; 500. replacing the device; 501. a threaded rod; 502. a fixing hole; 503. and (5) fixing a handle.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1-4, the present invention relates to a composite self-drilling twist drill, including a top device 100, a working device 200, a neck device 300, a handle device 400 and a replacing device 500, wherein the top device 100 includes a connecting block 102, the working device 200 includes a cutting body 201, one end of the cutting body 201 is connected to one surface of the connecting block 102, the neck device 300 includes a neck body 301, the other end of the cutting body 201 is connected to one surface of the neck body 301, the handle device 400 includes a handle body 401 and an internal thread 402, the other surface of the neck body 301 is welded to one end of the handle body 401, the replacing device 500 includes a threaded rod 501, and the threaded rods 501 are rotatably engaged with the internal thread 402.

Further, the top device 100 further comprises a cone 101 and a coating layer 103, one surface of the cone 101 is welded with the other surface of the connecting block 102, the inner surface of the coating layer 103 is connected with the outer surface of the cone 101, and the coating layer 103 can protect the cone 101.

Further, the working device 200 further comprises a plurality of working clearance holes 202, a plurality of working clearance holes 202 are formed in the side surface of the cutting body 201, and the cutting body 201 can machine the workpiece.

Further, the neck device 300 further comprises a transverse chip removal hole 302 and a longitudinal chip removal hole 303, the longitudinal chip removal hole 303 is formed in the neck body 301, the transverse chip removal hole 302 is formed in the side surface of the neck body 301, and the longitudinal chip removal hole 303 and the transverse chip removal hole 302 can facilitate chip removal.

Further, handle device 400 still includes fixed column 403, and a handle body 401 surface is equipped with the mounting hole, and the mounting hole inner surface is equipped with internal thread 402, and handle body 401 side surface is equipped with first through-hole, and fixed column 403 and first through-hole sliding fit, fixed column 403 can fix change device 500.

Further, the replacing device 500 further comprises a fixing hole 502 and a fixing handle 503, a second through hole is formed in the side surface of the threaded rod 501, the fixing column 403 is in sliding fit with the second through hole, the position of the first through hole is matched with the second through hole, one end of the threaded rod 501 is welded to one surface of the fixing handle 503, and the replacing device 500 can replace connecting handles of different models.

Example two:

referring to fig. 1-4, the utility model relates to a compound self-drilling twist drill, coating layer 103 is the corundum coating, and vertical chip removal hole 303 runs through whole equipment 200 and neck device 300, through work chip removal hole 202 and horizontal chip removal hole 302 with vertical chip removal hole 303's being connected, reaches the purpose that makes things convenient for the chip removal, earlier through threaded rod 501 and internal thread 402's normal running fit, rethread fixed column 403 will change device 500 and fix to handle body 401, reach the purpose of changing the connection handle.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A composite self-drilling twist drill comprising a top means (100), a working means (200), a neck means (300), a handle means (400) and a changing means (500), characterized in that: the top device (100) comprises a connecting block (102), the working device (200) comprises a cutting body (201), one end of the cutting body (201) is connected with one surface of the connecting block (102), the neck device (300) comprises a neck body (301), the other end of the cutting body (201) is connected with one surface of the neck body (301), the handle device (400) comprises a handle body (401) and an internal thread (402), the other surface of the neck body (301) is welded with one end of the handle body (401), the replacing device (500) comprises a threaded rod (501), and the threaded rod (501) is matched with the internal thread (402) in a rotating mode.

2. A composite self-drilling twist drill according to claim 1, wherein: the top device (100) further comprises a cone (101) and a coating layer (103), one surface of the cone (101) is welded with the other surface of the connecting block (102), and the inner surface of the coating layer (103) is connected with the outer surface of the cone (101).

3. A composite self-drilling twist drill according to claim 1, wherein: the working device (200) further comprises a working chip removal hole (202), and a plurality of working chip removal holes (202) are formed in the side surface of the cutting body (201).

4. A composite self-drilling twist drill according to claim 1, wherein: the neck device (300) further comprises a transverse chip removal hole (302) and a longitudinal chip removal hole (303), the longitudinal chip removal hole (303) is formed in the neck body (301), and the transverse chip removal hole (302) is formed in the side surface of the neck body (301).

5. A composite self-drilling twist drill according to claim 1, wherein: the handle device (400) further comprises a fixing column (403), a mounting hole is formed in one surface of the handle body (401), an internal thread (402) is formed in the inner surface of the mounting hole, a first through hole is formed in the side surface of the handle body (401), and the fixing column (403) is in sliding fit with the first through hole.

6. A composite self-drilling twist drill according to claim 5, wherein: the replacing device (500) further comprises a fixing hole (502) and a fixing handle (503), a second through hole is formed in the side surface of the threaded rod (501), the fixing column (403) is in sliding fit with the second through hole, the position of the first through hole is matched with that of the second through hole, and one end of the threaded rod (501) is welded to one surface of the fixing handle (503).