CN211638436U - Composite drill bit - Google Patents

Abstract

The utility model discloses a composite drill bit, which comprises a drill handle, wherein a conical storage space is formed inside the drill handle; the drill bit structure is a bidirectional drill bit, and the conical storage space of the drill handle is used for matching the bidirectional drill bit of the drill bit structure; a rotary structure being the connector, the rotary structure being disposed on both the shank and the bit structure; the positioning structure is the fixing piece and is arranged on the drill handle; the drill bit structure performs rotary motion on the drill handle through the cooperation of the rotary structure, and the positioning structure can fix the position of the drill bit structure after installation, so that the drill bit structure is prevented from shaking in the operation process; the utility model discloses have the drill bit of two kinds of not isostructures, and two kinds of drill bits can carry out rotation regulation, make things convenient for the operator to select the use according to the different conditions, whole use need not to dismantle and change, operate more simply convenient, save time, improve work efficiency.

Description

Composite drill bit

Technical Field

The utility model relates to the technical field of machining, especially, relate to a compound drill bit.

Background

The drill bit is a tool for drilling through holes or blind holes on a solid material and reaming the existing holes; at present, the drill bit of generally using is mostly single type, when the great aperture work piece of drilling, usually drills through earlier with a less drill bit, then changes this drill bit again, and the secondary reaming is gone to the great drill bit of reuse, causes the operation complicacy, waste time, has not only increased labourer's intensity of work, does not reach better effect in addition in work efficiency yet.

Therefore, the device which is simple to operate, does not need to be disassembled and replaced and is convenient to install is designed by combining the use defects that in the prior art, the replacement of a single drill bit is time-consuming and labor-consuming and low in efficiency in the operation process, so that the problems are solved.

Disclosure of Invention

The utility model aims at providing an avoid dismantling change, operation complicacy, waste time and can improve work efficiency's a compound drill bit.

In order to achieve the above object, the present invention provides the following technical solutions:

a composite drill bit, comprising:

the drill comprises a drill handle, a drill rod and a drill rod, wherein a conical storage space is formed inside the drill handle;

the drill bit structure is a bidirectional drill bit, and the conical storage space of the drill handle is used for matching the bidirectional drill bit of the drill bit structure;

further, the drill bit structure is movably arranged on the drill handle and forms two using states;

in the first using state, the drill bit structure is arranged in the conical storage space of the drill handle and is fixed through a fixing piece;

in the second use state, the drill bit structure is not arranged in the conical storage space of the drill handle and performs 360-degree rotary motion through the connecting piece;

a rotary structure being the connector, the rotary structure being disposed on both the shank and the bit structure;

the positioning structure is the fixing piece and is arranged on the drill handle.

The drill bit structure includes:

the drill bit comprises a first drill bit, a second drill bit and a connecting middle end;

the first drill bit, the connecting middle end and the second drill bit are sequentially connected and integrally formed.

The rotating structure includes:

a rotating shaft;

the first through hole is formed in two sides of the lower end of the drill shank;

the second through holes are formed in the left end and the right end of the middle connecting end;

the first through hole and the second through hole are positioned on the same horizontal line, and the aperture of the first through hole is the same as that of the second through hole;

furthermore, the rotating shaft is arranged in the first through hole and the second through hole in an inserting mode.

The first drill bit comprises a small drill nail, and the small drill nail is conical;

the second drill bit comprises a drill bit tip, and the drill bit tip is made of hard alloy;

the connecting middle end includes a cutting edge.

The positioning structure includes:

the fixing plate is two semicircular plate strips, and one ends of the two semicircular plate strips are arranged on the drill handle through hinges;

the other ends of the two semicircular lathes are connected through a buckle;

the fixed plate inner wall is provided with the fixed slot, the cutting edge embedding in the fixed slot.

Further, the drill handle comprises a bolt hole which is used for assembling and connecting with external mechanical equipment.

In the technical scheme, the utility model discloses a compound drill bit has following beneficial effect:

the utility model provides a pair of composite drill bit, the device have the drill bit of two kinds of isostructures, and two kinds of drill bits can carry out rotation regulation, make things convenient for the operator to select the use according to the different conditions, and whole use need not to dismantle the change, and the operation is more simple convenient, save time, improvement work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural diagram of a first embodiment of a composite drill bit according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of a composite drill bit according to an embodiment of the present invention;

description of reference numerals:

1. a drill shank; 2. a drill bit structure; 3. a rotating structure; 4. a positioning structure;

11. bolt holes;

21. a first drill bit; 22. a second drill bit; 23. connecting the middle end;

31. a rotating shaft; 32. a first through hole; 33. a second through hole;

41. a fixing plate; 42. buckling; 43. fixing grooves;

211. drilling a nail;

221. a drill tip;

231. a cutting edge.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

See fig. 1-2;

the utility model discloses a composite drill bit, include:

the drill comprises a drill handle 1, wherein a conical storage space is formed inside the drill handle 1;

the drill bit structure 2 is a bidirectional drill bit, and the conical storage space of the drill handle 1 is used for matching the bidirectional drill bit of the drill bit structure 2;

the drill bit structure 2 is movably arranged on the drill handle 1, and the drill bit structure 2 forms two using states;

in a first use state, the drill bit structure 2 is arranged in the conical storage space of the drill handle 1 and is fixed by a fixing piece;

in a second use state, the drill bit structure 2 is not arranged in the conical storage space of the drill handle 1 and performs 360-degree rotary motion through the connecting piece;

the rotary structure 3 is a connecting piece, and the rotary structure 3 is arranged on the drill handle 1 and the drill bit structure 2 simultaneously;

the positioning structure 4, the positioning structure 4 is the mounting, and the positioning structure 4 sets up on the drill shank 1.

Specifically, the utility model discloses a composite drill bit for machine-building processing, the device be different from the fixed and single structure of drill bit in the past, the device can adjust the use, and drill bit structure 2 carries out rotary motion through revolution mechanic 3's cooperation on drillstock 1, and location structure 4 can fix the position after the installation of drill bit structure 2, prevents that drill bit structure 2 from rocking in operation process, and the operator can require to adjust this device according to concrete implementation, labour saving and time saving, convenient to use.

The drill structure 2 includes:

a first drill bit 21, a second drill bit 22 and a connecting middle end 23;

the first drill 21, the connecting middle end 23 and the second drill 22 are connected in sequence and integrally formed.

Specifically, the drill structure 2 is different from the conventional single-drill single structure in that it includes the first drill 21 and the second drill 22, and the first drill 21 and the second drill 22 are used by changing the direction by the rotary structure 3.

The rotary structure 3 includes:

a rotating shaft 31;

first through holes 32, the first through holes 32 being provided at both sides of the lower end of the drill shank 1;

second through holes 33, the second through holes 33 being provided at both left and right ends of the connecting middle end 23;

the first through hole 32 and the second through hole 33 are positioned on the same horizontal line, and the aperture of the first through hole 32 is the same as that of the second through hole 33;

the rotating shaft 31 is inserted into the first through hole 32 and the second through hole 33.

The first drill bit 21 comprises a small drill nail 211, and the small drill nail 211 is conical;

the second drill bit 22 comprises a drill bit tip 221, the drill bit tip 221 being cemented carbide;

the connecting middle end 23 includes a cutting edge 231.

Preferably, the first drill bit 21 is provided with a plurality of small drill nails 211, and the small drill nails 211 are beneficial to reducing the abrasion degree of the inner core of the drill bit and prolonging the service life when drilling a workpiece with a larger aperture;

the tip 221 of the drill bit is made of hard alloy, so that the hard material can be drilled easily, and the practicability is improved;

further, the connecting middle end 23 has a cutting edge 231 to facilitate cutting requirements.

The positioning structure 4 includes:

the fixing plate 41 is a fixing plate 41, the fixing plate 41 is two semicircular plates, and one ends of the two semicircular plates are arranged on the drill handle 1 through hinges;

the other ends of the two semicircular strips are connected through the buckle 42;

the fixing groove 43 is formed on the inner wall of the fixing plate 41, and the cutting blade 231 is fitted into the fixing groove 43.

Specifically, when cutting edge 231 during in the embedding fixed slot 43, drill bit structure 2 is fixed, and at the in-process of drilling, the drill bit that is in the lower extreme can be atress better, keeps drilling vertical not skew, when needing to change the drill bit, opens buckle 42, rotates the drill bit of upper end to the lower extreme, again with cutting edge 231 in the embedding fixed slot 43, and buckle 42 the buckle, later carry out next drilling operation can.

The drill shank 1 comprises a bolt hole 11, and the bolt hole 11 is used for assembling and connecting with external mechanical equipment.

Specifically, the bolt hole 11 is fixedly arranged on the instrument through a matched bolt, and is convenient to detach and replace.

The first embodiment is as follows:

referring to fig. 1, the utility model discloses a first user state of composite drill bit:

the first drill 21 is located in the conical storage space of the drill shank 1, i.e. the upper end, and the second drill 22 is located outside the drill shank 1, i.e. the lower end, and at this time, the second drill 22 is in a use state and can be used for drilling hard materials.

Example two:

referring to fig. 2, the utility model discloses a second kind of user state of composite drill bit:

wherein, open buckle 42, then rotate drill bit structure 2 to second drill bit 22 and be located the coniform parking space of drillstock 1, be the upper end, then first drill bit 21 is located drillstock 1 outside, be the lower extreme, later will imbed cutting edge 231 in the fixed slot 43, fasten buckle 42 again, keep drill bit structure 2 fixed, first drill bit 21 is in the user state this moment, can be used for the work piece of drilling bigger aperture.

In the technical scheme, the utility model provides a pair of composite drill bit has following beneficial effect:

the utility model provides a composite drill bit has two kinds of drill bits of different structures, and two kinds of drill bits can carry out rotation regulation, make things convenient for the operator to select the use according to different situations, the whole use need not to dismantle and change, and two kinds of drill bits have different service functions, first drill bit 21 is suitable for the work piece of drilling bigger aperture, reduce the degree of wear of drill bit inner core, increase life; the second drill 22 is beneficial to drilling hard materials, the connecting middle end 23 is provided with a cutting edge 231, the cutting requirement is convenient, the device has multiple functions, and the operation is simpler and more convenient.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (6)

1. A composite drill bit, comprising:

the drill handle (1), wherein a conical storage space is formed inside the drill handle (1);

the drill bit structure (2), the drill bit structure (2) is a bidirectional drill bit, and the conical storage space of the drill handle (1) is used for matching the bidirectional drill bit of the drill bit structure (2);

the drill bit structure (2) is movably arranged on the drill handle (1), and the drill bit structure (2) forms two using states;

in a first use state, the drill bit structure (2) is arranged in the conical storage space of the drill handle (1) and is fixed through a fixing piece;

in a second use state, the drill bit structure (2) is not arranged in the conical storage space of the drill handle (1) and performs 360-degree rotary motion through a connecting piece;

a rotary structure (3), the rotary structure (3) being the connection, the rotary structure (3) being provided on both the drill shank (1) and the drill bit structure (2);

the positioning structure (4), the positioning structure (4) is the mounting, the positioning structure (4) sets up on the drillstock (1).

2. A composite drill bit according to claim 1, characterized in that the drill bit structure (2) comprises:

a first drill bit (21), a second drill bit (22) and a connecting middle end (23);

the first drill bit (21), the connecting middle end (23) and the second drill bit (22) are sequentially connected and integrally formed.

3. A composite drill bit according to claim 2, characterized in that the rotary structure (3) comprises:

a rotating shaft (31);

a first through hole (32), wherein the first through hole (32) is arranged on two sides of the lower end of the drill shank (1);

second through holes (33), the second through holes (33) being provided at both left and right ends of the connection middle end (23);

the first through hole (32) and the second through hole (33) are positioned on the same horizontal line, and the aperture of the first through hole (32) is the same as that of the second through hole (33);

the rotating shaft (31) is arranged in the first through hole (32) and the second through hole (33) in an inserting mode.

4. A composite drill bit according to claim 2, wherein:

the first drill bit (21) comprises a small drill nail (211), and the small drill nail (211) is conical;

the second drill bit (22) comprises a drill bit tip (221), the drill bit tip (221) being cemented carbide;

the connecting middle end (23) comprises a cutting edge (231).

5. A composite drill bit according to claim 4, characterized in that the positioning structure (4) comprises:

the fixing plate (41) is two semicircular plates, and one ends of the two semicircular plates are arranged on the drill handle (1) through hinges;

the other ends of the two semicircular slats are connected through a buckle (42);

and the fixing groove (43) is formed in the inner wall of the fixing plate (41), and the cutting edge (231) is embedded into the fixing groove (43).

6. A composite drill bit according to claim 1, wherein:

the drill handle (1) comprises a bolt hole (11), and the bolt hole (11) is used for being assembled and connected with external mechanical equipment.

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