CN219786662U - Combined drill bit - Google Patents
Combined drill bit Download PDFInfo
- Publication number
- CN219786662U CN219786662U CN202321024940.5U CN202321024940U CN219786662U CN 219786662 U CN219786662 U CN 219786662U CN 202321024940 U CN202321024940 U CN 202321024940U CN 219786662 U CN219786662 U CN 219786662U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- clamping
- bit body
- limiting
- locking sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000670 limiting effect Effects 0.000 claims abstract description 56
- 238000003754 machining Methods 0.000 claims abstract description 38
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model relates to a combined drill bit, which comprises a drill bit body, wherein the drill bit body comprises a drilling part and a cutter handle part, and a circle of limiting convex edge is arranged outside the middle side of the cutter handle part; the connecting installation piece is divided into a connecting part, a threaded connecting part and a clamping part according to the height, an installation hole is formed in the bottom of the connecting installation piece upwards, and the handle part of the drill bit body is inserted into the installation hole; the chamfering hole machining mechanism comprises a group of chamfering machining blades matched with the clamping grooves of the limiting convex edges, limiting plates with bottom surfaces propped against the top surfaces of the limiting convex edges are respectively connected to the chamfering machining blades, and the tops of the chamfering machining blades are propped against positions, where the clamping parts of the connecting mounting pieces are not provided with the abdication grooves; the locking sleeve is sleeved on the cutter handle part of the drill bit body, and the upper end of the locking sleeve is detachably locked and connected to the threaded connecting part of the connecting mounting piece. The utility model can effectively improve the use adaptability of the product.
Description
Technical Field
The utility model relates to the technical field of drill bits, in particular to a combined drill bit.
Background
The drill is a tool for drilling a through hole or a blind hole in a solid material and reaming an existing hole, and the conventional drill is a single body including a drilling part and a shank part connected to each other.
When the drill bit is used for a long time, the drilling part is worn, and the handle part is still intact at the moment, but the drill bit is scrapped together, so that the waste of raw materials is caused, and the combined drill bit which is detachably matched is used for solving the problem. The utility model disclosed in patent number CN202220360946.9 is a combination drill disclosed in the patent number CN202220360946.9, which divides a conventional drill into a drill shank with a drill head and a connecting unit; through the setting of connecting element, after the drill bit uses for a long time, can dismantle the drill bit stalk portion of damage, then change the drill bit stalk portion to avoid causing the waste to raw and other materials. However, such a composite brick has low applicability, and when it is necessary to perform chamfering or countersinking on the top of the drilled hole after finishing the machining, it is difficult to replace the drill bits of different specifications and shapes.
Therefore, on the basis of not influencing the reutilization of the drill stem, the combined drill capable of effectively and selectively machining the chamfer holes or the countersunk holes of the drilled holes after machining according to the machining requirement is designed, so that the use adaptability of the product is effectively improved.
Disclosure of Invention
The utility model aims to solve the technical problems in the prior art, and provides a combined drill which can effectively solve the technical problems in the prior art.
The technical scheme of the utility model is as follows:
a combination drill bit, comprising
The drill bit comprises a drill bit body, a drill bit and a cutter handle, wherein the drill bit body comprises a drilling part and a cutter handle part which are connected with each other, and a circle of corresponding limiting convex edges are arranged outside the middle side direction of the cutter handle part;
the connecting installation piece is divided into a connecting part, a threaded connecting part and a clamping part according to the height; the connecting parts are connected to spindle heads of corresponding machine tools; an external thread for connection is arranged on the outer side wall of the thread connection part; the outer side wall of the clamping part is obliquely arranged inwards, and a plurality of corresponding abdication grooves are formed in the clamping part at equal intervals; the bottom of the connecting mounting piece is upwards provided with a corresponding mounting hole, and the upper side of the cutter shank of the drill bit body is inserted into the mounting hole;
the chamfering hole machining mechanism comprises a group of chamfering machining blades matched with the clamping grooves, the bottoms of the chamfering machining blades are obliquely arranged or horizontally arranged, the width of the chamfering machining blades is smaller than that of the limiting convex edges, limiting plates with bottom faces abutted to the top faces of the limiting convex edges are respectively connected to the chamfering machining blades, and the tops of the chamfering machining blades are abutted to positions, where the clamping parts of the connecting installation pieces are not provided with abdication grooves;
the locking sleeve is sleeved on the cutter handle part of the drill bit body, the upper end of the locking sleeve is detachably locked and connected to a threaded connection part of the connection installation part in a threaded connection mode, the lower end of the locking sleeve is concavely provided with a clamping convex edge matched with the outer side of the limiting convex edge, the locking sleeve on the upper side of the clamping convex edge is provided with a jacking convex edge matched with the clamping part, and the top of the inner end of the jacking convex edge is set into an inclined plane shape matched with the clamping part.
The limiting plate is in a fan-shaped arrangement, the inner end face and the outer end face of the limiting plate are respectively arranged to be in arc surface shapes matched with the cutter handle portion of the drill bit body and the outer end face of the limiting flange, and after the locking sleeve is locked in place, the inner end face and the outer end face of the limiting plate are respectively abutted between the cutter handle portion of the drill bit body and the inner side face of the locking sleeve.
The top of handle of a knife portion upwards sets up a corresponding chucking spare, the top of mounting hole upwards be provided with chucking groove of chucking spare looks adaptation, the upside of handle of a knife portion inserts in the mounting hole, chucking spare inserts in the chucking inslot.
The knife handle part is in a cylindrical shape, and the clamping piece is in a plate shape.
A plurality of corresponding limiting clamping grooves are formed in the connecting part of the connecting installation piece according to equal angles.
The outer circular surface of the drilling part is provided with a spiral chip groove, and a cutting edge is formed at the intersection of the chip groove and the end surface of the drilling part.
The limiting convex edge and the clamping piece are respectively connected to the shank part of the drill bit body in an integrated mode, and the clamping convex edge and the jacking convex edge are respectively connected to the locking sleeve in an integrated mode.
The outer side wall of the locking sleeve is provided with a group of corresponding fixing planes.
The utility model has the advantages that:
1) The utility model comprises a drill bit body and a connecting mounting piece. The drill bit body comprises a drilling part and a cutter handle part, wherein a limiting convex edge is arranged outside the middle side of the cutter handle part; the connecting and mounting piece is divided into a connecting part, a threaded connecting part and a clamping part according to the height; the connecting parts are connected to spindle heads of corresponding machine tools, and the outer side walls of the clamping parts are arranged in an inward inclined mode and are provided with a plurality of abdicating grooves at intervals. After the shank portion of the drill bit body is inserted into the mounting hole of the engagement mounting piece, the locking sleeve can be locked and connected to the threaded engagement portion of the engagement mounting piece upwards, the clamping portion is contracted inwards effectively to fix the shank portion of the drill bit body under the action of the jacking convex edge on the clamping portion, so that the drill bit body is fixedly mounted, and after the drill bit body is used for a long time, the damaged/worn drill bit body can be detached for replacement, so that the reuse of the engagement mounting piece is not affected.
2) The utility model is also additionally provided with the chamfer hole processing mechanism which comprises a group of chamfer processing blades matched with the clamping grooves on the limiting convex edges, the width of the chamfer processing blades is smaller than that of the limiting convex edges, so that the locking and mounting of the locking sleeve cannot be influenced, the chamfer processing blades are respectively connected with limiting plates with bottom surfaces abutted to the top surfaces of the limiting convex edges, and after the locking sleeve is mounted in place, the top parts of the chamfer processing blades are abutted to the positions where the clamping parts of the connecting mounting pieces are not provided with the relief grooves, so that the chamfer processing blades are effectively and firmly fixed. Therefore, when the chamfer hole or the countersink is required to be machined on the drilled hole after machining, the chamfer machining blade with the bottom arranged in an inclined mode or a horizontal mode can be selectively installed in place, so that the chamfer hole or the countersink can be selectively machined on the drilled hole after machining according to machining requirements, and the use adaptability of a product is effectively improved.
3) The limiting plate is in a fan-shaped arrangement, the inner end face and the outer end face of the limiting plate are respectively arranged into arc faces which are matched with the cutter handle part of the drill bit body and the outer end face of the limiting convex edge, after the locking sleeve is locked in place, the inner end face and the outer end face of the limiting plate are respectively abutted between the cutter handle part of the drill bit body and the inner side face of the locking sleeve, so that the limiting effect on the limiting plate is effectively further improved, the installation stability of the chamfering machining blade is improved, and the practical effect of the chamfering machining blade is improved.
4) The top of the cutter handle part is provided with the corresponding clamping piece upwards, and when the upper side of the cutter handle part is inserted into the mounting hole, the clamping piece is inserted into the clamping groove, so that the rotating driving effect of the connecting mounting piece on the drill bit body is effectively ensured, and the practical effect of the cutter handle is further improved.
5) The outer side wall of the locking sleeve is provided with a group of corresponding fixing planes, and the fixing planes can be matched with corresponding wrenches to carry out installation operation on the locking sleeve, so that the practical effect of the locking sleeve is further improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the structure of the bit body plugged into the engagement mounting.
Fig. 3 is a cross-sectional view of the present utility model.
Fig. 4 is a schematic structural view of a bit body.
Fig. 5 is a schematic view of the structure of the engagement mounting.
Fig. 6 is a schematic structural view of a chamfering hole processing mechanism.
Detailed Description
For the convenience of understanding by those skilled in the art, the structure of the present utility model will now be described in further detail with reference to the accompanying drawings:
referring to FIGS. 1-6, a combination drill bit includes
The drill bit comprises a drill bit body 1, wherein the drill bit body 1 comprises a drilling part 101 and a cutter handle part 102 which are connected with each other, and a circle of corresponding limiting convex edges 1021 are arranged outside the middle side of the cutter handle part 102;
the joint mounting member 2 is divided into a connecting portion 201, a screw joint portion 202, and a clamping portion 203 in height; the connecting portion 201 is connected to a spindle head of a corresponding machine tool; the outer side wall of the thread joint part 202 is provided with external threads for joint; the outer side wall of the clamping part 203 is inclined inwards, and a plurality of corresponding abdication grooves 2031 are arranged on the clamping part 203 at equal intervals; the bottom of the connecting mounting piece 2 is upwards provided with a corresponding mounting hole, and the upper side of the shank 102 of the drill bit body 1 is inserted into the mounting hole;
the chamfering hole machining mechanism 3, two sides of the limiting protruding edge 1021 are respectively and inwards provided with corresponding clamping grooves 4, the chamfering hole machining mechanism 3 comprises a group of chamfering machining blades 301 matched with the clamping grooves 4, the bottoms of the chamfering machining blades 301 are arranged in an inclined mode, the width of the chamfering machining blades 301 is smaller than that of the limiting protruding edge 1021, the chamfering machining blades 301 are respectively connected with limiting plates 302, the bottom surfaces of the limiting plates are abutted to the top surfaces of the limiting protruding edge 1021, and the top parts of the chamfering machining blades 301 are abutted to positions, where the clamping parts 203 of the connecting installation pieces 2 are not provided with the giving-up grooves 2031;
the locking sleeve 5 is sleeved on the cutter handle part 102 of the drill bit body 1, the upper end of the locking sleeve is detachably locked and connected to the threaded connection part 202 of the connection mounting part 2 in a threaded connection mode, the lower end of the locking sleeve 5 is concavely provided with a clamping convex edge 501 matched with the outer side of the limiting convex edge 1021, the locking sleeve 5 on the upper side of the clamping convex edge 501 is provided with a jacking convex edge 502 matched with the clamping part 203, and the top of the inner end of the jacking convex edge 502 is set into an inclined plane shape matched with the clamping part 203.
After the shank 102 of the drill bit body 1 is inserted into the mounting hole of the engagement mounting piece 2, the locking sleeve 5 can be locked and connected to the threaded engagement portion 202 of the engagement mounting piece 2 upwards, the clamping portion 203 is contracted inwards to effectively fix the shank 102 of the drill bit body 1 under the action of the jacking convex edge 502 on the clamping portion 203, so that the drill bit body 1 is fixedly mounted, and after the drill bit body 1 is used for a long time, the damaged/worn drill bit body 1 can be detached for replacement, so that the reuse of the engagement mounting piece 2 is not affected.
The utility model is additionally provided with the chamfer hole processing mechanism 3 which comprises a group of chamfer processing blades 301 matched with the clamping grooves 4 on the limiting convex edge 1021, wherein the width of the chamfer processing blades 301 is smaller than that of the limiting convex edge 1021, so that the locking installation of the locking sleeve 5 is not influenced, the chamfer processing blades 301 are respectively connected with limiting plates 302 with bottom surfaces abutting against the top surfaces of the limiting convex edge 1021, and after the locking sleeve 5 is installed in place, the top parts of the chamfer processing blades 301 are abutted against the positions where the clamping parts 203 of the connecting installation pieces 2 are not provided with the giving-up grooves 2031, so that stable fixation of the chamfer processing blades 301 is effectively formed. Therefore, when the machined drilling holes are required to be subjected to chamfering hole machining, the chamfering machining blade 301 with the bottom arranged in an inclined mode can be selectively installed in place, so that the machining of the chamfering holes can be effectively and selectively performed on the machined drilling holes according to machining requirements, and the use adaptability of products is effectively improved.
The limiting plate 302 is in a fan-shaped arrangement, the inner and outer end surfaces of the limiting plate 302 are respectively arranged to be in a cambered surface shape matched with the handle part 102 of the drill bit body 1 and the outer end surface of the limiting flange 1021, and after the locking sleeve 5 is locked in place, the inner and outer end surfaces of the limiting plate 302 are respectively abutted between the handle part 102 of the drill bit body 1 and the inner side surface of the locking sleeve 5.
Through the special setting of limiting plate 302's shape, after locking sleeve 5 is locked in place, make limiting plate 302's inside and outside terminal surface butt respectively between the handle of a knife portion 102 of drill bit body 1 and locking sleeve 5's medial surface to effectively further promote the spacing effect to limiting plate 302, with the installation steadiness to chamfer processing blade 301.
The top of handle of a knife portion 102 upwards sets up a corresponding chucking spare 6, the top of mounting hole upwards be provided with chucking groove of chucking spare 6 looks adaptation, the upside of handle of a knife portion 102 inserts in the mounting hole, chucking spare 6 inserts in the chucking groove. The shank 102 is provided in a cylindrical shape, and the retainer 6 is provided in a plate shape. Thereby effectively ensuring the rotation driving effect of the connecting mounting piece 2 on the drill bit body 1 so as to further improve the practical effect of the utility model.
A plurality of corresponding limit clamping grooves 7 are arranged on the connecting part 201 of the connecting installation piece 2 at equal angles. The outer circular surface of the drilling part 101 is provided with a spiral chip groove 8, and a cutting edge is formed at the intersection of the chip groove 8 and the end surface of the drilling part 101.
The limiting protruding edge 1021 and the clamping piece 6 are respectively connected to the shank of the drill bit body 1 in an integrated mode, and the clamping protruding edge 501 and the jacking protruding edge 502 are respectively connected to the locking sleeve 5 in an integrated mode.
The outer side wall of the locking sleeve 5 is provided with a set of corresponding fixing planes 9, by means of which fixing planes 9 the locking sleeve 5 can be fitted with corresponding wrenches for the mounting operation.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (8)
1. A combination drill bit, characterized in that: comprising
The drill bit comprises a drill bit body (1), wherein the drill bit body (1) comprises a drilling part (101) and a cutter handle part (102) which are connected with each other, and a circle of corresponding limiting convex edges (1021) are arranged outside the middle side direction of the cutter handle part (102);
a joint mounting member (2) which is divided into a connecting part (201), a threaded joint part (202) and a clamping part (203) according to the height; the connecting part (201) is connected to a spindle head of a corresponding machine tool; an external thread for connection is arranged on the outer side wall of the thread connection part (202); the outer side wall of the clamping part (203) is obliquely arranged inwards, and a plurality of corresponding abdication grooves (2031) are formed in the clamping part (203) at equal intervals; the bottom of the connecting mounting piece (2) is upwards provided with a corresponding mounting hole, and the upper side of the shank part (102) of the drill bit body (1) is inserted into the mounting hole;
the chamfering hole machining mechanism (3), both sides of the limiting protruding edge (1021) are respectively and inwards provided with corresponding clamping grooves (4), the chamfering hole machining mechanism (3) comprises a group of chamfering machining blades (301) which are matched with the clamping grooves (4), the bottoms of the chamfering machining blades (301) are arranged in an inclined mode or in a horizontal mode, the width of the chamfering machining blades (301) is smaller than that of the limiting protruding edge (1021), the chamfering machining blades (301) are respectively connected with limiting plates (302) with the bottom faces abutted to the top faces of the limiting protruding edge (1021), and the tops of the chamfering machining blades (301) are abutted to positions, where the clamping parts (203) of the connecting installation pieces (2) are not provided with the giving-up grooves (2031);
locking sleeve (5), the cover is located on handle of a knife portion (102) of drill bit body (1) and its upper end is connected to through threaded connection mode detachable locking link up screw thread joint portion (202) of linking installed part (2), the lower tip indent of locking sleeve (5) be provided with spacing protruding along the outside matched with chucking protruding edge (501) of (1021), be provided with on locking sleeve (5) of chucking protruding edge (501) upside with tight protruding edge (502) in top of clamping part (203) looks adaptation, the inner top of tight protruding edge (502) in top set up with the inclined plane form of clamping part (203) looks adaptation.
2. A combination drill bit as claimed in claim 1, wherein: the limiting plate (302) is in a fan-shaped arrangement, the inner end face and the outer end face of the limiting plate (302) are respectively arranged to be matched with the handle portion (102) of the drill bit body (1) and the outer end face of the limiting convex edge (1021), after the locking sleeve (5) is locked in place, the inner end face and the outer end face of the limiting plate (302) are respectively abutted to the handle portion (102) of the drill bit body (1) and the inner side face of the locking sleeve (5).
3. A combination drill bit as claimed in claim 1, wherein: the top of handle of a knife portion (102) upwards sets up a corresponding chucking spare (6), the top of mounting hole upwards be provided with chucking groove that chucking spare (6) looks was adapted, the upside of handle of a knife portion (102) inserts in the mounting hole, chucking spare (6) insert in the chucking inslot.
4. A combination drill bit according to claim 3, wherein: the knife handle part (102) is in a cylindrical shape, and the clamping piece (6) is in a plate shape.
5. A combination drill bit as claimed in claim 1, wherein: a plurality of corresponding limiting clamping grooves (7) are formed in the connecting part (201) of the connecting installation piece (2) at equal angles.
6. A combination drill bit as claimed in claim 1, wherein: the outer circular surface of the drilling part (101) is provided with a spiral chip groove (8), and a cutting edge is formed at the intersection of the chip groove (8) and the end surface of the drilling part (101).
7. A combination drill bit as recited in claim 4, wherein: the limiting convex edge (1021) and the clamping piece (6) are respectively connected to the shank part of the drill bit body (1) in an integrated mode, and the clamping convex edge (501) and the jacking convex edge (502) are respectively connected to the locking sleeve (5) in an integrated mode.
8. A combination drill bit as claimed in claim 1, wherein: the outer side wall of the locking sleeve (5) is provided with a group of corresponding fixing planes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321024940.5U CN219786662U (en) | 2023-05-04 | 2023-05-04 | Combined drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321024940.5U CN219786662U (en) | 2023-05-04 | 2023-05-04 | Combined drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219786662U true CN219786662U (en) | 2023-10-03 |
Family
ID=88155335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321024940.5U Active CN219786662U (en) | 2023-05-04 | 2023-05-04 | Combined drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219786662U (en) |
-
2023
- 2023-05-04 CN CN202321024940.5U patent/CN219786662U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10081066B2 (en) | Self-locking head-replaceable carbide drill | |
| CN109158666B (en) | Combined cutter and process for machining long pore by using same | |
| CN204545517U (en) | Self-locking head-changeable hard alloy drill bit | |
| US8684640B2 (en) | Reaming tool as well as a head and a cutting insert therefor | |
| US8845243B2 (en) | Reaming tool as well as a head and a cutting insert therefor | |
| US4531867A (en) | Cutting tool | |
| CN105750598A (en) | Split type modular indexable drill | |
| US4076443A (en) | Cutting tool assembly | |
| CN219786662U (en) | Combined drill bit | |
| CN210848494U (en) | Milling and drilling combined machining tool | |
| CN100546743C (en) | Turning and drilling gang tool | |
| CN212704583U (en) | Combined tool for drilling back-reaming | |
| CN215966692U (en) | Chamfering tool | |
| US20050079020A1 (en) | Tool arrangement and tool for chip removal | |
| CN214108934U (en) | Drilling and milling cutter | |
| CN211804046U (en) | High efficiency double-end milling cutter | |
| CN219188747U (en) | High-efficiency double-diamond edge broken hole drill | |
| CN215396110U (en) | External screw connector hole digger | |
| CN211071954U (en) | Alloy composite drill bit | |
| CN110355407A (en) | With the modularization rotary cutting tool with drilling/reaming part cutting head | |
| JP2009291858A (en) | Boring tool | |
| CN215238045U (en) | Coating ladder composite drill | |
| CN212652709U (en) | Cutter for machining key groove of workpiece | |
| CN216151345U (en) | Efficient reamer convenient for replacing cutter head | |
| CN221087358U (en) | Drilling tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |