CN210046052U - Drilling and reaming combined composite cutter - Google Patents
Drilling and reaming combined composite cutter Download PDFInfo
- Publication number
- CN210046052U CN210046052U CN201920486956.5U CN201920486956U CN210046052U CN 210046052 U CN210046052 U CN 210046052U CN 201920486956 U CN201920486956 U CN 201920486956U CN 210046052 U CN210046052 U CN 210046052U
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- drilling
- excircle
- reaming
- outer circle
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 96
- 239000002131 composite material Substances 0.000 title claims description 4
- 238000004513 sizing Methods 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 238000003754 machining Methods 0.000 description 29
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model discloses a drilling and reaming combined compound cutter, the utility model discloses a cutter base member, the one end of cutter base member is provided with the drilling twolip, be provided with the chip groove between the drilling excircle cutting edge of drilling twolip, drilling excircle cutting edge spiral setting, the head end of drilling excircle cutting edge is provided with the end face cutting edge, the tail end of drilling excircle cutting edge is provided with the reaming excircle cutting edge, the reaming excircle cutting edge helix angle sets up, the chip groove follows the drilling excircle cutting edge and the helical direction setting of reaming excircle cutting edge, the reaming excircle cutting edge is close to one side of drilling excircle cutting edge is provided with the sizing section, the reaming excircle cutting edge is provided with the back taper section, the excircle diameter of drilling excircle cutting edge is less than the excircle diameter of sizing section; the problems of high processing cost, low processing efficiency and excessive performance caused by the fact that three props are needed in the common processing cutter process are solved.
Description
Technical Field
The utility model relates to a machine tooling cutter field, specific theory relates to a bore hinge and combine compound sword.
Background
The conventional machining mode of IT 7-IT 8-level precision holes for a long time is as follows: rough drilling (removing allowance efficiently) → semi-fine reaming (ensuring hole position and straightness) → fine machining (ensuring size and hole precision), and this kind of processing mode needs three cutters, drilling cutter, reaming cutter and reaming cutter, and the processing cost is high, and machining efficiency is low. Meanwhile, the problems of excessive performance of the reaming tool in the use process can occur due to the requirements of high dimensional precision and low roughness.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bore hinge and combine compound sword makes the cutting performance of the integrated drilling of a cutter, reaming to solve common processing sword process and need use three cutters, cause the problem that the processing cost is high, machining efficiency hangs down and the performance is surplus.
In order to solve the above problem, the utility model discloses a following technical means:
the utility model provides a drilling and reaming combine combination sword, includes the cutter base member, the one end of cutter base member is provided with the drilling twolip, be provided with the chip groove between the drilling excircle cutting edge of drilling twolip, drilling excircle cutting edge is followed the axis direction of cutter base member and is followed the outer spiral setting of following of cutter base member, the head end of drilling excircle cutting edge is provided with the end face cutting edge along its spiral direction, the tail end of drilling excircle cutting edge is provided with the reaming excircle cutting edge along its spiral direction, the reaming excircle cutting edge along the outer edge of cutter base member keep with the same helix angle setting of drilling excircle cutting edge, the chip groove follows the drilling excircle cutting edge and the spiral direction setting of reaming excircle cutting edge, one side that the reaming excircle cutting edge is close to the drilling excircle cutting edge is provided with the constant diameter section, the excircle diameter that is located aforementioned reaming excircle cutting edge in aforementioned path length section keeps unchangeable, reaming excircle cutting edge is kept away from one side of drilling excircle cutting edge be provided with the back taper section that the path length section links to each other, the excircle diameter that is located aforementioned reaming excircle cutting edge in aforementioned back taper section reduces gradually, the excircle diameter of drilling excircle cutting edge is less than the excircle diameter of path length section.
Preferably, the length of the sizing section is 3-5 mm, and the inverted taper of the inverted taper section is 0.08-0.10/100.
Further, the excircle diameter ratio of reaming excircle cutting edge the excircle diameter ratio of drilling excircle cutting edge is 0.6~1.0mm bigger.
Furthermore, the length of the drilling excircle cutting edge along the central axis direction of the cutter base body is 2-3 mm.
Furthermore, the edge ends of the drilling outer circle cutting edge and the reaming outer circle cutting edge are both provided with white edge structures.
Furthermore, one side of the reaming outer circle cutting edge, which is opposite to the cutter base body, is provided with an auxiliary groove, and the auxiliary groove extends along the spiral direction of the reaming outer circle cutting edge.
Furthermore, the edge width of the drilling outer circle cutting edge is larger than that of the reaming outer circle cutting edge, and the part of the drilling outer circle cutting edge, which exceeds the reaming outer circle cutting edge, extends along the side wall of the reaming outer circle cutting edge.
The utility model discloses compare with common cutter, possess one of following beneficial effect at least:
1. the drilling and reaming composite tool has the advantages that the quick and efficient cutting machining is realized through the design of the two-edge spiral structure, the machining cost is saved, the machining efficiency is improved, a reaming part plays a role in back guiding for a front end drilling part, namely a drilling excircle cutting edge, by utilizing the reaming excircle cutting edge during machining, the problem that the hole position degree and the straightness degree are greatly changed during drilling machining is avoided, and a hole expanding process and a tool in conventional machining are omitted;
2. the auxiliary groove is additionally arranged on the reaming outer circle cutting edge, the original two-edge structure of the reaming outer circle cutting edge is optimized into four edges, the supporting effect of the hole wall on the cutter is enhanced, and the roundness of the inner hole is guaranteed to be within 0.005 mm;
3. the length of drilling excircle cutting edge sets up to 2~3mm, and the drilling part of whole cutter is short like this, does benefit to the reaming excircle cutting edge of reaming part and gets into operating condition very fast, has played back direction, supporting role, has guaranteed that the straightness accuracy and the position degree of hole are within 0.02mm to improve the precision of processing.
4. The sizing section is made to reaming excircle cutting edge front end, and aforementioned sizing section means the unchangeable part of diameter on the reaming excircle cutting edge, has guaranteed hole size precision through setting up of sizing section, and the back taper design is made to the excircle cutting edge at sizing section rear portion, has reduced the friction of this part excircle and pore wall, has alleviateed the elastic deformation of material, has reduced the processing resistance, has improved processing life.
5. The extension of the drilling outer cutting edge is made along the entire flute portion, i.e. in the direction along the reaming cutting edge, at the side wall of the reaming cutting edge there is provided an extension of the drilling cutting edge. Can be after the working part of drilling excircle cutting edge becomes blunt, the length that keeps drilling portion throughout is 2 to 3 mm. If the length of the drilling part is too short, the reaming outer circle cutting edge of the corresponding head end is polished, and the length of the drilling outer circle cutting edge is made up by the length of the drilling outer circle cutting edge of the side wall of the reaming outer circle cutting edge. The cutter can be used by grinding for many times on the premise of enough working length, and the utilization rate of the cutter is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic end view structure of fig. 1.
Fig. 3 is a schematic end view structure diagram in the embodiment of fig. 1.
Fig. 4 is a schematic view of a comparative conventional blade configuration of fig. 3.
Fig. 5 is a schematic structural diagram in an embodiment of the present invention.
Fig. 6 is a schematic end view structure of fig. 5.
Wherein, 1-a cutter base body, 2-an excircle cutting edge, 3-a chip groove, 4-an end face cutting edge, 5-a reaming excircle cutting edge, 6-a diameter fixing section, 7-an inverted cone section, 8-a white edge structure, 9-an auxiliary groove and 10-a sharp edge structure.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The utility model provides a drilling and reaming combines compound sword, includes cutter base member 1, the one end of cutter base member 1 is provided with the drilling twolip, be provided with chip groove 3 between the drilling excircle cutting edge 2 of drilling twolip, drilling excircle cutting edge 2 is followed the axis direction of cutter base member 1 and is followed the outer spiral setting of following of cutter base member 1, the head end of drilling excircle cutting edge 2 is provided with the terminal surface cutting edge 4 that is used for drilling along its spiral direction, the tail end of drilling excircle cutting edge 2 is provided with reaming excircle cutting edge 5 along its spiral direction, reaming excircle cutting edge 5 along the outer edge of cutter base member 1 keep with the helix angle setting that drilling excircle cutting edge 2 is the same, chip groove 3 follows drilling excircle cutting edge 2 and the spiral direction setting of reaming excircle cutting edge 5, reaming excircle cutting edge 5 is close to one side of drilling cutting edge 2 is provided with constant diameter section 6, the excircle diameter that is located aforementioned reaming excircle cutting edge 5 in aforementioned sizing section 6 remains unchanged, reaming excircle cutting edge 5 keeps away from one side of drilling excircle cutting edge 2 be provided with back taper section 7 that sizing section 6 links to each other, the excircle diameter that is located aforementioned reaming excircle cutting edge 5 in aforementioned back taper section 7 reduces gradually, the excircle diameter of drilling excircle cutting edge 2 is less than the excircle diameter of sizing section 6.
In this embodiment, the utility model discloses a drilling and reaming combines compound cutter is in the in-process that uses, make the cutting performance of a cutter integrated drilling, reaming, simultaneously, reaming excircle cutting edge 5 has played back guide effect for front end drilling excircle cutting edge 2 during processing, avoid drilling to add the problem that appears the hole position degree and straightness accuracy and change by a wide margin during processing, thereby the reaming process and the cutter in the conventional processing have been left out, the drilling and reaming compound cutter, the problem of processing cost, machining efficiency and performance surplus has been solved, and excircle drilling 2 sets up to two-edged helical structure, reaming excircle cutting edge 5 is two-edged helical structure correspondingly simultaneously, the chip space is the biggest, get rid of the surplus most, 3 big chips of chip groove are the fastest, can process the hole with high efficiency; in order to solve the problem that the size precision is influenced by rapid abrasion of a cutter due to large cutting allowance, the cutter is designed to combine rough machining and finish machining cutting performance, wherein a drilling excircle cutting edge 2 is used as a rough machining cutting edge part, a reaming excircle cutting edge 5 is used as a finish machining cutting edge part, most allowance is removed by rough machining, and the finish machining ensures the size precision; the reaming outer circle cutting edge 5 is provided with the sizing section 6, namely the outer circle diameter of the reaming outer circle cutting edge 5 is unchanged, and the length of the sizing section 6 is 3-5 mm, so that the dimensional precision of a machined product is guaranteed, and the whole cutter can be polished for multiple times; except for the diameter fixing section 6, the back taper section 7 is arranged on the reaming outer circle cutting edge 5, namely the radial size of the outer circle of the reaming outer circle cutting edge 5 positioned in the back taper section 7 is gradually reduced along the direction far away from the diameter fixing section 6, and the back taper of the back taper section 7 is 0.08-0.10/100, so that the problems that the cutting resistance is increased due to continuous friction between the whole cutting edge and a hole wall from the beginning to the end of machining, the hole wall is seriously extruded, the elastic recovery of a material is increased, and the size precision of the product is influenced can be effectively avoided, the friction between the blade body part of the reaming outer circle cutting edge 5 and the hole wall is reduced, the elastic deformation of the material is reduced, the machining resistance is reduced, and the machining service life is prolonged; and because the machining allowance is great during drilling, and the central part negative rake angle of cutter, carry out extrusion process, finally cause the hole diameter of processing to be greater than cutter excircle diameter, receive by the influence of processing material, lathe stability, cutter clamping rationality, produce an extravagant amount of floating, again because of the roughness during rough machining is relatively poor, the size design of event drilling part need consider to leave sufficient cutting allowance for the finish machining part, that is to say the excircle diameter of drilling excircle cutting edge 2 is less than the excircle diameter of path fixing section 6, specifically, the excircle diameter ratio of reaming excircle cutting edge 5 the excircle diameter of drilling excircle cutting edge 2 is 0.6~1.0mm big.
Example 2
On embodiment 1's basis, drilling excircle cutting edge 2 is followed the axis direction length of cutter base member 1 is 2~3mm, and the drilling part of whole cutter like this is short, does benefit to reaming excircle cutting edge 5 of reaming part and gets into operating condition very fast, has played back direction, supporting role, has guaranteed that the straightness accuracy and the position degree of hole are within 0.02mm to improve the precision of processing.
Example 3
On the basis of embodiment 2, please refer to fig. 3 again, the size of hole diameter is decided to the size of cutter diameter, when the outer circle cutting edge of drilling outer circle cutting edge 2 and reaming outer circle cutting edge 5 is the sharp edge (specifically refer to the sharp edge structure shown in fig. 4), the aforesaid sharp edge structure means that the flank face has only the relief angle, is a sharp cutting edge, and its wearing and tearing are very fast, influence hole diameter precision, for improving the outer circle cutting edge life of finish machining part, drilling outer circle cutting edge 2 with the sword end of reaming outer circle cutting edge 5 all sets up to white edge structure 8, and the aforesaid white edge in the white edge structure means that the flank face adds the relief angle for the cylinder land.
Example 4
In addition to embodiment 3, please refer to fig. 5 and 6, a side of the reaming outer circular cutting edge 5 opposite to the tool base 1 is provided with a secondary groove 9, and the secondary groove 9 extends along a spiral direction of the reaming outer circular cutting edge 5.
In the present embodiment, by adding the auxiliary groove 9 to the finish-machined portion, i.e., the reamed outer cutting edge 5, one original reamed outer cutting edge 5 is divided into two, thereby changing the number of the cutting edges of the finish machining part into four, effectively increasing the supporting function of the hole wall to the reaming excircle cutting edge 5 in the machining process of the cutter, leading the stress to be more uniform and not easy to generate cutting, so as to avoid the problem that the conventional two-edge cutter has small action on the reaming outer circle cutting edge 5 of the hole wall in the machining process, and the cutter is easy to generate cutter back-off cutting when the stress is uneven, thereby the problem that the shape precision of the inner hole is difficult to ensure to cause an elliptical inner hole in finish machining is solved, one original reaming outer circle cutting edge 5 is divided into two parts by adding the auxiliary groove 9, therefore, the reaming outer circle cutting edges 5 of the finish machining part are changed into four, and the problem of the shape precision of the inner hole is effectively solved.
Example 5
On the basis of embodiment 4, please refer to fig. 5 again, the edge width of the drilling outer cutting edge 2 is larger than the edge width of the reaming outer cutting edge 5, and the part of the drilling outer cutting edge 2 beyond the reaming outer cutting edge 5 extends along the side wall of the reaming outer cutting edge 5.
Thus, in the present embodiment, the drilling outer circumferential cutting edge 2 is also provided on the side wall of the reaming outer circumferential cutting edge 5 in the direction along the reaming outer circumferential cutting edge 5 (the drilling outer circumferential cutting edge 2 herein refers to a portion of the drilling outer circumferential cutting edge 2 located in the roughing region extending along the side wall of the reaming outer circumferential cutting edge 5 beyond the width of the reaming outer circumferential cutting edge 5). In the process of continuous grinding, the length of the drilling excircle cutting edge 2 along the axial direction of the cutter base body 1 is kept to be 2-3 mm all the time. If the length of drilling excircle cutting edge 2 is too short, just polish reaming excircle cutting edge 5 of head end, mend the length of drilling outer lane cutting edge with the length of reaming excircle cutting edge, because drilling excircle cutting edge 2 constantly polishes the in-process of renovating, can cause certain consumption to calibrating strap 6, when the length consumption of calibrating strap 6 is below 3mm, need change new cutter. However, the service life of the tool can be extended by a plurality of thinning operations before the bearing band 6 is completely consumed.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. A drilling and reaming combined composite cutter comprises a cutter base body (1), and is characterized in that: one end of the cutter base body (1) is provided with a drilling double edge which comprises a pair of drilling excircle cutting edges (2) which are spirally arranged, the head end of the drilling excircle cutting edge (2) is provided with an end face cutting edge (4), the tail end of the drilling excircle cutting edge (2) is provided with a reaming excircle cutting edge (5), the reaming outer circle cutting edge (5) is spirally arranged, a chip groove (3) is arranged along the spiral direction of the drilling outer circle cutting edge (2) and the reaming outer circle cutting edge (5), a section of the reaming outer circle cutting edge (5) close to the drilling outer circle cutting edge (2) is provided with a sizing section (6), a section of the reaming outer circle cutting edge (5) far away from the drilling outer circle cutting edge (2) is provided with an inverted cone section (7) connected with the sizing section (6), the outer circle diameter of the drilling outer circle cutting edge (2) is smaller than that of the sizing section (6).
2. A drill and hinge combined compound tool according to claim 1, wherein: the length of the sizing section (6) is 3-5 mm, and the back taper of the back taper section (7) is 0.08-0.10/100.
3. A drill and hinge combined compound tool according to claim 1, wherein: the excircle diameter ratio of reaming excircle cutting edge (5) the excircle diameter of drilling excircle cutting edge (2) is 0.6~1.0mm bigger.
4. A drill and hinge combined compound tool according to claim 1, wherein: drilling excircle cutting edge (2) are followed the axis direction length of cutter base member (1) is 2~3 mm.
5. A drill and hinge combined compound tool according to claim 1, wherein: the edge ends of the drilling excircle cutting edge (2) and the reaming excircle cutting edge (5) are both provided with white edge structures (8).
6. A drill and hinge combined compound tool according to claim 1, wherein: the reaming outer circle cutting edge (5) and the opposite surface of the cutter base body (1) are provided with auxiliary grooves (9), and the auxiliary grooves (9) extend along the spiral direction of the reaming outer circle cutting edge (5).
7. A drill and hinge combined compound tool according to claim 1, wherein: the edge width of the drilling excircle cutting edge (2) is larger than the edge width of the reaming excircle cutting edge (5), and the part of the drilling excircle cutting edge (2) exceeding the reaming excircle cutting edge (5) extends along the side wall of the reaming excircle cutting edge (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486956.5U CN210046052U (en) | 2019-04-11 | 2019-04-11 | Drilling and reaming combined composite cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486956.5U CN210046052U (en) | 2019-04-11 | 2019-04-11 | Drilling and reaming combined composite cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210046052U true CN210046052U (en) | 2020-02-11 |
Family
ID=69379645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920486956.5U Active CN210046052U (en) | 2019-04-11 | 2019-04-11 | Drilling and reaming combined composite cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210046052U (en) |
-
2019
- 2019-04-11 CN CN201920486956.5U patent/CN210046052U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204262495U (en) | Dual boot is to deep hole reamer | |
| CN107398599B (en) | Super-precision reamer | |
| CN116967788A (en) | Boring and rolling composite BTA deep hole machining tool and manufacturing method | |
| CN115090943A (en) | End milling cutter with gradually-changed groove depth discrete edges and convenient for chip removal | |
| CN215786950U (en) | Compound tool for non-metal composite material | |
| CN210046052U (en) | Drilling and reaming combined composite cutter | |
| CN211387075U (en) | Efficient three-blade broaching tool capable of performing intermittent machining | |
| CN211304915U (en) | Double-edge chamfering extrusion drilling reamer | |
| CN218253078U (en) | Ball end mill with variable front angle helicoid | |
| CN203459722U (en) | Spiral drill tip | |
| CN110919058B (en) | High-efficiency three-blade reamer capable of being intermittently processed | |
| CN115365526A (en) | Cutter for machining circular ring end surface groove and machining method of circular ring end surface groove | |
| CN214602295U (en) | Reaming device for dissimilar material hole | |
| CN110449638B (en) | Multi-edge twist drill | |
| CN210789370U (en) | Multifunctional stepped drill bit | |
| CN109014255B (en) | Cutter for processing quenched metal material | |
| CN206839309U (en) | A kind of cutter of machining piston pin-and-hole | |
| CN113020666A (en) | Compound tool for non-metal composite material | |
| CN211331527U (en) | Tool bit structure and cutting tool | |
| CN201120490Y (en) | HPC groove shaped butt mill | |
| CN212857937U (en) | High-precision taper ball milling cutter for processing impeller | |
| CN219274581U (en) | Cemented carbide core-changing groove-enlarging deep hole drill bit | |
| CN104416196A (en) | Spiral tip bit | |
| CN212350496U (en) | Drilling and tapping combined high-performance forming cutter | |
| CN209867495U (en) | End milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 South Road, Longquanyi Economic and Technological Development Zone, Chengdu, Sichuan Province Patentee after: Chengdu Great Wall cutting tools Co., Ltd Address before: 610000 South Road, Longquanyi Economic and Technological Development Zone, Chengdu, Sichuan Province Patentee before: CHENGDU GERUN HI-TECH MATERIALS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |