CN215845902U

CN215845902U - Double-edge PCD drill bit

Info

Publication number: CN215845902U
Application number: CN202122428000.XU
Authority: CN
Inventors: 阴杰; 陈尚银; 周华
Original assignee: Suzhou Guanxu Instrument Equipment Co ltd
Current assignee: Suzhou Guanxu Instrument Equipment Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-02-18
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a double-blade PCD drill bit, which relates to the field of drill bits and comprises a clamping box, wherein a drill bit groove is formed in the center of the clamping box, a drill bit fixing part can be inserted into the drill bit groove, inwards-concave inserting grooves are formed in the left side and the right side of the drill bit fixing part, a plurality of groups of ratchet grooves are formed in the front side and the rear side of the drill bit fixing part, inserting strips which can move in the horizontal direction and can be inserted into the inserting grooves are arranged in spring grooves, a plurality of groups of ratchet strips are arranged on the front side and the rear side in the clamping box, and two groups of guide strips are arranged at the bottom end of the clamping box. The clamping mechanism is arranged to be of a structure with the ratchet belt inserting strips, the drill bit can be automatically limited and locked only by inserting the fixed part of the drill bit into the drill bit groove upwards when the cutter is installed, the drill bit can be disassembled by rotating the drill bit by ninety degrees by pulling the pull lugs on two sides of the clamping box when the drill bit is disassembled, any other tools are not needed in the whole assembling and disassembling process, the assembling and disassembling are very convenient, the manufacturing difficulty of the clamping box and the drill bit is small, the manufacturing cost is low, and the device is favorable for popularization and application.

Description

Double-edge PCD drill bit

Technical Field

The utility model relates to the field of drill bits, in particular to a double-blade PCD drill bit.

Background

PCD is polycrystalline diamond, is used as a superhard cutter material for cutting processing, has the characteristics of high hardness, high compressive strength, good heat conductivity, good wear resistance and the like, can obtain high processing precision and processing efficiency in high-speed cutting, and a drill bit is a cutter on a drilling machine and causes holes on a workpiece.

The existing double-edge PCD drill bit needs a plurality of tools when the drill bit is replaced, and the cutter can be detached only by knocking with a small hammer under the condition of tight installation, so that the cutter is easy to damage while time and labor are wasted, and the machining efficiency is very low under the machining condition that the cutter needs to be replaced frequently.

Disclosure of Invention

Based on the above, the utility model aims to provide a double-blade PCD drill bit, so as to solve the technical problems that a plurality of tools are required when the existing double-blade PCD drill bit is used for replacing the drill bit, a small hammer is required to knock the tool to disassemble the tool under the condition of tight installation, the tool is easily damaged while time and labor are wasted, and the machining efficiency is very low under the machining condition that the tool needs to be replaced frequently.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a twolip type PCD drill bit, includes the centre gripping box, the center of centre gripping box is equipped with the drill bit groove, the drill bit fixed part can be inserted to the drill bit inslot, the left and right sides of drill bit fixed part is provided with inside sunken slot, and both sides are provided with multiunit ratchet groove around and, the left and right sides in the centre gripping box is provided with the spring groove, but the spring inslot has the horizontal direction activity and can insert the cutting of slot, the side is provided with the multiunit ratchet around in the centre gripping box, the bottom of centre gripping box is provided with two sets of gibs.

Through adopting above-mentioned technical scheme, set up the fixed part of drill bit into the left and right sides is inside sunken, the front and back both sides are equipped with the thorn groove, set up fixture into the structure of ratchet area cutting, only need upwards insert the drill bit inslot with the fixed part of drill bit when the installation cutter, alright to the automatic spacing locking of drill bit, only need stimulate the ear of drawing on centre gripping box both sides when dismantling the drill bit, rotate ninety degrees with the drill bit and can dismantle down the drill bit, loading and unloading whole journey does not with the help of any other instrument, and loading and unloading are very convenient, mechanical limit structure simple to use, make centre gripping box and drill bit make the degree of difficulty little, low in manufacturing cost, be favorable to the popularization and use of this device.

The utility model is further provided that a drill bit working part is connected right below the drill bit fixing part.

Through adopting above-mentioned technical scheme, come to bore hole to the work piece through drill bit work portion.

The utility model is further arranged in that a plurality of groups of springs are arranged in the spring grooves, the back of the inserting bar is connected with a connecting bar, the connecting bar is connected with a pull lug through a plurality of pull rods which extend outwards out of the clamping box, and the center of the pull lug is provided with a ring.

Through adopting above-mentioned technical scheme, the ring makes things convenient for the workman to stimulate and draws the ear, and the spring gives the power of cutting to the slot direction, guarantees that the centre gripping box can be firm the centre gripping drill bit fixed part.

The utility model is further arranged that the ratchet bar can rotate by a rotating shaft positioned on the inner wall of the drill bit groove, the ratchet bar can rotate and retract into the ratchet bar rotating groove, and a torsion spring is arranged in the rotating shaft.

By adopting the technical scheme, under the normal state of the rotating shaft, the inserting strips are kept in the inclined state towards the drill bit groove by the force of the torsion spring in the rotating shaft, and the ratchet rotating groove can be retracted when the drill bit enters the drill bit groove.

In summary, the utility model mainly has the following beneficial effects:

1. according to the utility model, the fixed part of the drill bit is arranged to be inwards recessed at the left side and the right side, the ratchet grooves are arranged at the front side and the rear side, the clamping mechanism is arranged to be of a structure with the ratchet belt inserting strips, when the cutter is installed, the drill bit can be automatically limited and locked only by upwards inserting the fixed part of the drill bit into the drill bit groove, when the drill bit is disassembled, the drill bit can be disassembled by rotating the drill bit by ninety degrees by pulling the pull lugs at the two sides of the clamping box, the whole assembling and disassembling process is free of any other tool, and the assembling and disassembling are very convenient;

2. the clamping box and the drill bit are small in manufacturing difficulty and low in manufacturing cost by using a simple mechanical limiting structure, and the device is favorable for popularization and use.

Drawings

FIG. 1 is a front interior view of the present invention;

FIG. 2 is an elevational view of the interior of the clamp portion of the present invention;

FIG. 3 is a side elevational view of the present invention;

FIG. 4 is an enlarged view of A of FIG. 3 according to the present invention;

FIG. 5 is a side view of a drill bit of the present invention;

FIG. 6 is a top view of the drill bit of the present invention.

In the figure: 1. a clamping box; 2. a drill bit fixing part; 3. a drill bit working section; 4. pulling the lug; 5. a ring; 6. a pull rod; 7. a connecting strip; 8. a spring slot; 9. a spring; 10. cutting; 11. a slot; 12. a drill bit slot; 13. a guide strip; 14. a ratchet bar; 15. a rotating shaft; 16. rotating the ratchet bar into a groove; 17. a ratchet groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

The utility model provides a twolip type PCD drill bit, as shown in fig. 1-6, including centre gripping box 1, centre gripping box 1's center is equipped with drill bit groove 12, can insert drill bit fixed part 2 in drill bit groove 12, the left and right sides of drill bit fixed part 2 is provided with inside sunken slot 11, and both sides are provided with multiunit thorn groove 17 around and, all need keep clean in slot 11 and the thorn groove 17, in order to avoid the cooperation not in place, the left and right sides in centre gripping box 1 is provided with spring groove 8, but spring groove 8 is interior to have the horizontal direction activity and can insert the cutting slip 10 of slot 11, the front and back side in centre gripping box 1 is provided with multiunit thorn 14, the bottom of centre gripping box 1 is provided with two sets of gib block 13.

Referring to fig. 1 and 5, a drill working portion 3 is connected to a position right below the drill fixing portion 2, and a workpiece is drilled by the drill working portion 3.

Referring to fig. 1, a plurality of groups of springs 9 are arranged in a spring groove 8, a connecting strip 7 is connected to the back of an inserting strip 10, the connecting strip 7 is connected to a pull lug 4 through a plurality of pull rods 6 extending out of a clamping box 1, a ring 5 is arranged at the center of the pull lug 4, the ring 5 facilitates a worker to pull the pull lug 4, and the springs 9 provide force to the inserting strip 10 towards a direction of a slot 11, so that the clamping box 1 can stably clamp a drill bit fixing part 2.

Referring to fig. 4, the ratchet 14 can rotate around the rotating shaft 15 located on the inner wall of the drill slot 12, the ratchet 14 can rotate to retract into the ratchet rotating slot 16, a torsion spring is disposed in the rotating shaft 15, the rotating shaft 15 keeps the ratchet 14 tilted into the drill slot 12 under the force of the torsion spring in the rotating shaft 15 in a normal state, and the ratchet rotating slot 16 can be retracted when the drill enters into the drill slot 12.

The working principle of the utility model is as follows: when a drill bit is installed, the inserting grooves 11 at two sides of the drill bit fixing part 2 of the drill bit are aligned with the guide strips 13 at the bottom end of the clamping box 1, the drill bit is pushed upwards, when the drill bit enters the drill bit groove 12, the inserting grooves 11 at two sides of the drill bit fixing part 2 are matched with the inserting strips 10 in the clamping box 1, in the process of continuing to move upwards, the drill bit fixing part 2 forces the ratchet strips 14 on the inner wall of the clamping box 1 to rotate around the rotating shaft 15 to retract the ratchet strip rotating grooves 16, when the drill bit fixing part 2 moves upwards, the ratchet strips 17 on the drill bit fixing part 2 reach the positions of the ratchet strips 14, the torsion spring in the rotating shaft 15 enables the ratchet strips 14 to rotate towards the ratchet strips 17, when the drill bit fixing part 2 moves to the tail end of the drill bit groove 12, all the ratchet strips 14 are just matched with all the ratchet strips 17 on the drill bit fixing part 2, the vertical limit of the drill bit is completed at this time, and the limit of the rotating direction is completed by the inserting strips 10 inserted into the inserting strips 11 of the drill bit fixing part 2, when needing the tool changing after the drilling work is accomplished to drill bit working part 3, insert ring 5 with the finger, outwards open, draw 6 pulling connecting strips 7 of pull rod that ear 4 is connected, connecting strip 7 drives the cutting 10 of being connected with it and outwards moves in slot 11, break away from spacing to the axial direction of rotation of drill bit fixed part 2, only need rotary drill bit this moment, the drill bit can drop, loosen and draw ear 4, connecting strip 7 receives the spring 9 elasticity automatic re-setting in spring groove 8, accomplish the dismantlement to the drill bit, when not using the drill bit, need keep the cleanness in slot 11 and the thorn groove 17 on the drill bit fixed part 2, avoid having the greasy dirt to influence the cooperation between drill bit and the centre gripping box 1.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims

1. A double-edged PCD drill comprising a holder case (1), characterized in that: the center of centre gripping box (1) is equipped with drill bit groove (12), can insert drill bit fixed part (2) in drill bit groove (12), the left and right sides of drill bit fixed part (2) is provided with inside sunken slot (11), and both sides are provided with multiunit ratchet groove (17) around and, the left and right sides in centre gripping box (1) is provided with spring groove (8), but the horizontal direction activity has in spring groove (8) and can insert slip (10) of slot (11), the side is provided with multiunit ratchet (14) around in centre gripping box (1), the bottom of centre gripping box (1) is provided with two sets of gib block (13).

2. A PCD drill bit of the double-edged type according to claim 1, characterised in that: a drill bit working part (3) is connected under the drill bit fixing part (2).

3. A PCD drill bit of the double-edged type according to claim 1, characterised in that: the novel clamping device is characterized in that a plurality of groups of springs (9) are arranged in the spring grooves (8), the back of the inserting strip (10) is connected with a connecting strip (7), the connecting strip (7) is connected with a pull lug (4) through a plurality of pull rods (6) which outwards extend out of the clamping box (1), and a finger ring (5) is arranged at the center of the pull lug (4).

4. A PCD drill bit of the double-edged type according to claim 1, characterised in that: the ratchet (14) can rotate by a rotating shaft (15) positioned on the inner wall of the drill bit groove (12), the ratchet (14) can rotate and retract into the ratchet rotating groove (16), and a torsion spring is arranged in the rotating shaft (15).