CN211758728U

CN211758728U - Drill bit convenient to assemble and disassemble

Info

Publication number: CN211758728U
Application number: CN202020277519.5U
Authority: CN
Inventors: 魏文兵
Original assignee: Jiangsu Haolaite Tooling Co ltd
Current assignee: Jiangsu Haolaite Tooling Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-10-27
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses a drill bit convenient to equipment and dismantlement, including the drilling rod, the drilling rod divide into spiral portion, smooth portion and boring blade head, and the spiral portion parts smooth portion and boring blade head separately, the spiral portion is provided with the helicla flute, smooth portion and boring blade head are located the both ends of drilling rod respectively, the outer end fixedly connected with connecting piece of smooth portion, and the inside of connecting piece cup joint rather than the fitting piece of looks adaptation, the inside of connecting piece is stretched into to the part of fitting piece. The drill bit convenient to assemble and disassemble is provided with the clamping block and the clamping groove, the matching piece and the connecting piece form a detachable structure through the clamping groove and the clamping block, the structure is convenient to disassemble and assemble between the matching piece and the connecting piece, the drill bit can be conveniently replaced on different machines for use, and the applicability of the drill bit is improved; spacing hole cooperation spacer pin uses, plays the effect that the secondary is fixed to fitting piece and connecting piece, makes both fix more firmly, improves stability.

Description

Drill bit convenient to assemble and disassemble

Technical Field

The utility model relates to a drill bit convenient to equipment and dismantlement.

Background

The drill bit is used for drilling out through holes or blind holes in solid materials, and can be used as a cutter for reaming existing holes, the drill bit can be divided into rough machining and fine machining, the drill bit for rough machining generally has large cutting amount, the cutting amount of the drill bit for fine machining is small, chips are thinner, when the drill bit is used, connectors with different sizes need to be replaced according to needs, and the drill bit can be suitable for different machines.

Traditional drill bit is the integrated into one piece structure rather than the connector is the great majority, and the unable dismantlement of its connector is not convenient for change, and the suitability is lower, and the use of drill bit is influenced in the part detachable connector existence fixed insecure, not hard up easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drill bit convenient to equipment and dismantlement to solve the drill bit that proposes in the above-mentioned background art and be the integrated into one piece structure rather than the connector is most, its connector can't be dismantled, is not convenient for change, and the suitability is lower, and the part detachable connector exists fixed insecure, and is not hard up easily, influences the problem of the use of drill bit.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drill bit convenient to equipment and dismantlement, includes the drilling rod, the drilling rod divide into spiral portion, smooth portion and drill bit head, and the spiral portion separates smooth portion and drill bit head, the spiral portion is provided with the helicla flute, smooth portion and drill bit head are located the both ends of drilling rod respectively, the outer end fixedly connected with connecting piece of smooth portion, and the inside of connecting piece cup joint rather than the fitting piece of looks adaptation, the inside of connecting piece is stretched into to the part of fitting piece.

Preferably, a plurality of clamping grooves are uniformly distributed on the inner wall of the connecting piece along the axial direction, clamping blocks matched with the clamping grooves are uniformly distributed on the outer wall of the matching piece along the axial direction, and the matching piece forms a detachable structure with the connecting piece through the clamping grooves and the clamping blocks.

Preferably, the fixture block is in a triangular prism structure, and the local outer part of the fixture block is tightly attached to the local inner wall of the clamping groove.

Preferably, a plurality of limiting holes are uniformly distributed in the matching piece, the limiting holes and the clamping blocks are distributed at intervals, and a limiting pin matched with the limiting holes to realize fixation is arranged on the connecting piece.

Preferably, an external thread is arranged on the outer end wall of the fitting piece, a locking nut is screwed at the external thread, and an internal thread matched with the external thread is arranged on the inner wall of the locking nut.

Preferably, the locking nut is a hexagonal nut.

Preferably, the width of the spiral groove is larger than the wire pitch of the drill bit head.

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

1. the matching piece of the utility model forms a detachable structure with the connecting piece through the clamping groove and the clamping block, the structure is convenient for the detachment and installation between the matching piece and the connecting piece, the drill bit can be conveniently replaced on different machines for use, and the applicability of the drill bit is improved; the limiting hole is matched with the limiting pin for use, so that the secondary fixing effect is realized on the matching piece and the connecting piece, the matching piece and the connecting piece are more firmly fixed, and the stability is improved;

2. the external thread and the internal thread of the utility model are mutually matched for use to form a spiral structure, which is convenient for the installation and the disassembly of the locking nut and can play a certain locking role in the connection of the matching piece and the connecting piece; the clamping block is in a triangular prism structure, so that the clamping area of the clamping block and the clamping groove is reduced, the clamping of the clamping block and the clamping groove is easy and labor-saving, and a basic fixing effect can be achieved;

3. the groove width of the spiral groove of the utility model is larger than the thread distance of the drill bit head, when the drill bit is used, the produced scraps can be discharged smoothly, the working efficiency of the drill bit is improved, the blockage is avoided, the drill bit is also protected to a certain extent, and the heat dissipation of the drill bit is accelerated; the locking nut is a hexagon nut, so that the locking nut is high in applicability, stable and easy to lock.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic structural diagram of a portion a in fig. 1 according to the present invention.

In the figure: 1. a drill stem; 11. a spiral portion; 12. a smooth portion; 13. drilling a blade head; 14. a helical groove; 2. a connecting member; 21. a card slot; 22. a spacing pin; 3. a mating member; 31. a clamping block; 32. a limiting hole; 33. an external thread; 4. locking the nut; 41. an internal thread.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-2, the present invention provides a technical solution: a drill bit convenient for assembly and disassembly comprises a drill rod 1, the drill rod 1 is divided into a spiral part 11, a smooth part 12 and a drill blade head 13, the spiral part 11 separates the smooth part 12 from the drill blade head 13, the spiral part 11 is provided with a spiral groove 14, the groove width of the spiral groove 14 is larger than the wire distance of the drill blade head 13, when the drill bit is used, chips can be smoothly discharged, the working efficiency of the drill bit is improved, blockage is avoided, a certain protection effect is exerted on the drill bit, the heat dissipation of the drill bit is accelerated, the smooth part 12 and the drill blade head 13 are respectively positioned at two ends of the drill rod 1, the outer end of the smooth part 12 is fixedly connected with a connecting piece 2, a plurality of clamping grooves 21 are uniformly distributed on the inner wall of the connecting piece 2 along the axial direction, clamping blocks 31 matched with the clamping grooves 21 are uniformly distributed on the outer wall of a fitting piece 3 along the axial direction, the fitting piece 3 forms a detachable structure with the connecting piece 2 through the clamping, the drill bit can be conveniently replaced to different machines for use, and the applicability of the drill bit is improved;

the fixture block 31 is of a triangular prism structure, and the local outer part of the fixture block 31 is tightly attached to the local inner wall of the clamping groove 21, the structure reduces the clamping area of the fixture block 31 and the clamping groove 21, so that the clamping between the fixture block 31 and the clamping groove 21 is easier and more labor-saving, and can play a basic fixing role, a plurality of limiting holes 32 are uniformly distributed on the fitting piece 3, the limiting holes 32 and the fixture block 31 are distributed at intervals, a limiting pin 22 which is matched with the limiting holes 32 to realize the fixing is arranged on the connecting piece 2, the limiting holes 32 are matched with the limiting pin 22 to use, so that the fitting piece 3 and the connecting piece 2 are secondarily fixed, the fixing between the fitting piece 3 and the connecting piece 2 is firmer, the stability is improved, the fitting piece 3 matched with the connecting piece 2 is sleeved in the connecting piece 2, an external thread 33 is arranged on the outer end wall of the fitting piece 3, external screw thread 33 and internal thread 41 use of mutually supporting, constitute helical structure, the installation and the dismantlement of the lock nut 4 of being convenient for can play certain locking effect to being connected of fitting piece 3 and connecting piece 2, and lock nut 4 is hexagon nut, and the suitability is strong and stable easy locking, and the part of fitting piece 3 stretches into the inside of connecting piece 2.

The working principle is as follows: for the drill bit convenient for assembly and disassembly, firstly, the connecting piece 2 is fixed at the outer end of the smooth part 12 of the drill rod 1 by welding, the fitting piece 3 is taken out, the fitting piece 3 is inserted by aligning with the inside of the connecting piece 2, the clamping block 31 is clamped along the clamping groove 21 until the outer wall of the clamping block 31 is tightly attached to the inner wall of the clamping groove 21, the connecting piece 2 and the fitting piece 3 are basically fixed, then the limit pin 22 is inserted by aligning with the limit hole 32, the two are used in a matched manner, the connecting piece 2 and the fitting piece 3 are further fixed, the fixing between the connecting piece 2 and the fitting piece 3 is firmer, the stability of the drill bit is improved, the detachable structure between the connecting piece 2 and the fitting piece 3 enables the drill bit to be suitable for different machines, the applicability of the drill bit is improved, a locking nut 4 can be screwed in along the external, the fixture block 31 is in a triangular prism structure, so that the clamping area of the fixture block 31 and the clamping groove 21 is reduced, and the fixture block and the clamping groove are clamped lightly and labor-saving; the groove width of the spiral groove 14 is larger than the thread pitch of the drill bit head 13, when the drill bit is used, generated scraps can be smoothly discharged, the working efficiency of the drill bit is improved, blockage is avoided, a certain protection effect is also achieved on the drill bit, and heat dissipation of the drill bit is accelerated; the whole using process of the drill bit convenient to assemble and disassemble is completed.

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 a drill bit convenient to equipment and dismantlement which characterized in that: including drilling rod (1), drilling rod (1) divide into spiral portion (11), smooth portion (12) and drill bit (13), and spiral portion (11) parts smooth portion (12) and drill bit (13), spiral portion (11) are provided with helicla flute (14), smooth portion (12) and drill bit (13) are located the both ends of drilling rod (1) respectively, the outer end fixedly connected with connecting piece (2) of smooth portion (12), and the inside of connecting piece (2) cup joint fitting piece (3) rather than the looks adaptation, the inside of connecting piece (2) is stretched into to the part of fitting piece (3).

2. A drill bit for facilitating assembly and disassembly of claim 1, wherein: have a plurality of draw-in groove (21) along the axial equipartition on the inner wall of connecting piece (2), have fixture block (31) with draw-in groove (21) looks adaptation along the axial equipartition on the outer wall of fitting piece (3), fitting piece (3) constitute detachable construction through draw-in groove (21) and fixture block (31) and connecting piece (2).

3. A drill bit for facilitating assembly and disassembly as claimed in claim 2, wherein: the fixture block (31) is in a triangular prism structure, and the local outer part of the fixture block (31) is tightly attached to the local inner wall of the clamping groove (21).

4. A drill bit for facilitating assembly and disassembly as claimed in claim 2, wherein: the limiting pin fixing device is characterized in that a plurality of limiting holes (32) are evenly distributed in the matching piece (3), the limiting holes (32) and the clamping blocks (31) are distributed alternately, and a limiting pin (22) matched with the limiting holes (32) to realize fixing is arranged on the connecting piece (2).

5. A drill bit for facilitating assembly and disassembly as claimed in claim 2, wherein: the outer end wall of the matching piece (3) is provided with an external thread (33), the external thread (33) is screwed with a locking nut (4), and the inner wall of the locking nut (4) is provided with an internal thread (41) matched with the external thread (33).

6. An assembly and disassembly facilitating drill bit as set forth in claim 5, wherein: the locking nut (4) is a hexagonal nut.

7. A drill bit for facilitating assembly and disassembly of claim 1, wherein: the width of the spiral groove (14) is larger than the wire distance of the drill bit head (13).