CN209849960U - Cutter for machining sealing hole - Google Patents
Cutter for machining sealing hole Download PDFInfo
- Publication number
- CN209849960U CN209849960U CN201920674869.2U CN201920674869U CN209849960U CN 209849960 U CN209849960 U CN 209849960U CN 201920674869 U CN201920674869 U CN 201920674869U CN 209849960 U CN209849960 U CN 209849960U
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- China
- Prior art keywords
- cutting edge
- cutter
- conical surface
- hole
- machining
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- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 238000003754 machining Methods 0.000 title claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 69
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000005493 welding type Methods 0.000 claims description 5
- 230000002950 deficient Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Milling Processes (AREA)
Abstract
The utility model provides a cutter for processing a sealing hole, which comprises a cutter handle, a cutter head and a blade, wherein the cutter head is provided with four chip flutes, the four chip flutes are uniformly distributed on the side wall of the cutter head along the circumferential direction, and each chip flute is arranged along the axial direction of the cutter head; an inner cooling hole is formed in the center of the cutter head along the axial direction; the four blades are arranged in four chip grooves respectively, and each blade is sequentially provided with a conical surface cutting edge, a threaded bottom hole cutting edge, a first middle conical surface cutting edge, a second middle conical surface cutting edge, a groove bottom surface cutting edge and a groove side wall cutting edge. The utility model provides a cutter makes the cutter variety reduce, has eliminated the accumulative error in the course of working, and dimensional requirement and geometric tolerances obtain effective control, and process time shortens with processing cycle, has reduced the processing cost, has improved the life of cutter, and machining efficiency obtains improving, and product quality is stable, reduces the product defective rate, the effective control operation cost.
Description
Technical Field
The utility model belongs to the machining field relates to a cutter for processing sealed hole.
Background
Oil ports and threaded ends with ISO 725 threads and O-ring seals are manufactured mainly according to the following international standards: english system specification: SAE J1926-1/ISO 11926-1; metric specification: ISO 6149-1:1993/SAE J-2244/1. Such sealing bores are used primarily in hydraulic valves, control valves and engines.
The series of sealing holes have complex structures and high dimensional requirements and form and position tolerance requirements. Currently, when machining the series of sealing holes, not only pre-drilling is needed, but also grinding of the sealing ring holes is needed. The repeated positioning error can be generated by adopting cutters with different specifications for processing. And the processing time and the processing period are long, the processing cost is high, the efficiency is low, and the product quality is unstable.
Therefore, it is desirable to develop a tool for machining the series of sealed holes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cutter for processing sealed hole to solve in the course of working of SAE J1962 series sealed hole with high costs, inefficiency, the unstable problem of product quality.
The technical scheme of the utility model is that:
a cutter for machining a sealing hole comprises a cutter handle, a cutter head and a blade, wherein four chip grooves are formed in the cutter head, the four chip grooves are uniformly distributed on the side wall of the cutter head along the circumferential direction, and each chip groove is formed in the axial direction of the cutter head; an inner cooling hole is formed in the center of the cutter head along the axial direction; the blade sets up four, set up respectively in four in the chip groove, every the blade has conical surface cutting edge, screw bottom hole cutting edge in proper order, conical surface cutting edge in first, the second, trough bottom surface cutting edge and groove side wall cutting edge, each cutting edge all is provided with rake face and back knife face, the rake face and the machined part contact of each cutting edge have a rake angle, the back knife face and the machined part contact of each cutting edge all have first relief angle and second relief angle, wherein the rake angle of each cutting edge is 5 ~ 8, first relief angle is 5 ~ 10, the second relief angle is 20 ~ 30, the land width 3mm of each cutting edge, flank width 1 mm. The conical surface cutting edge is used for processing a conical surface of the sealing hole; the thread bottom hole cutting edge is used for processing a thread bottom hole of the sealing hole; the first middle conical surface cutting edge is used for machining a first middle conical surface of the sealing hole; the second middle conical surface cutting edge is used for machining the second middle conical surface of the sealing hole; the groove bottom cutting edge is used for processing the middle groove bottom of the sealing hole; the groove side wall cutting edge is used for processing a middle groove side wall of the sealing hole.
Further, the cutter for machining the sealing hole is a welding type cutter or a machine clamping type cutter.
The utility model discloses an effect and benefit are:
(1) use the utility model provides a cutter for processing sealed hole need not drill in advance, has saved cutter settlement time, improves production efficiency.
(2) Use the utility model provides a cutter for processing sealed hole need not grind sealed race hole, has reduced manufacturing procedure.
(3) The utility model provides a cutter for processing sealed hole is cold in taking the center certainly, allows very fast cutting speed and feed rate.
(4) The utility model provides a cutter for processing sealed hole has suitable sword number of teeth to and the chip groove in big space, satisfied the high requirement of downthehole wall finish.
(5) The utility model provides a cutting edge double relief angle design for processing cutter in sealed hole does benefit to control and keeps size precision, improves the stability of cutting and reduces the vibration when the cutting.
Drawings
Fig. 1 is a schematic structural diagram of a tool for machining a seal hole according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a tool for machining a sealing hole according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of the structure of SAE J1926 series sealed pores.
In the figure: 1, a conical surface cutting edge; 2, a thread bottom hole cutting edge; 3 a first medium cone cutting edge; 4 a second medium cone cutting edge; 5, a groove bottom cutting edge; 6 groove side wall cutting edges; 7 chip flutes; 8, internal cooling holes; 9 cutter heads; 10, conical surface; 11 a threaded bottom hole; 12 a first medium taper surface; 13 a second middle conical surface; 14 middle groove bottom surface; 15 middle groove side walls; 16 blades; 17 tool shank.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
It is to be understood that the appended drawings are not to scale, but are merely drawn with appropriate simplifications to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and environment of use.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Oil ports and threaded ends with ISO 725 threads and O-ring seals are manufactured mainly according to the following international standards: english system specification: SAE J1926-1/ISO 11926-1; metric specification: ISO 6149-1:1993/SAE J-2244/1. In the present invention, such sealing holes are collectively referred to as SAE J1962 series sealing holes. As shown in fig. 3, the SAE J1962 series of sealing bores includes a tapered surface 10, a threaded bottom bore 11, a first medium tapered surface 12, a second medium tapered surface 13, a medium groove bottom surface 14, and a medium groove side wall 15.
Fig. 1 is a schematic structural diagram of a tool for machining a seal hole according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a tool for machining a sealing hole according to an embodiment of the present invention. Referring to fig. 1 and 2, the present embodiment provides a tool for machining a seal hole, which includes a shank 17, a tool bit 9, and a blade 16. Wherein, four chip flutes 7 have been seted up on tool bit 9, and four chip flutes 7 are along circumference evenly distributed on the lateral wall of tool bit 9, and every chip flute 7 is seted up along the axial of tool bit 9, and every chip flute 7 has big space, does benefit to the chip removal.
In the center of the cutter head 9, an inner cooling hole 8 is formed along the axial direction to allow for a faster cutting speed and a faster feeding speed.
The blade 16 sets up four, set up respectively in four chip pockets 7, every blade 16 has conical surface cutting edge 1 in proper order, screw thread bottom hole cutting edge 2, first well conical surface cutting edge 3, conical surface cutting edge 4 in the second, tank bottom surface cutting edge 5, groove side wall cutting edge 6, each cutting edge all is equipped with rake face and flank face, the rake face and the machined part contact of each cutting edge have a rake angle, the flank face and the machined part contact of each cutting edge all have two relief angles, be first relief angle and second relief angle respectively, wherein the rake angle of each cutting edge is 5 ~ 8. The first clearance angle is 5 ~ 10 degrees, and the second clearance angle design is 20 ~ 30 degrees, and the land width of each cutting edge is 3mm, and the flank face width is 1 mm.
Wherein, the conical cutting edge 1 is used for processing a conical surface 10 of SAE J1962 series sealing holes; the thread bottom hole cutting edge 2 is used for processing a thread bottom hole 11 of an SAE J1962 series sealing hole; the first medium taper cutting edge 3 is used for machining a first medium taper 12 of SAE J1962 series seal holes; the second middle conical surface cutting edge 4 is used for machining a second middle conical surface 13 of an SAE J1962 series sealing hole; the groove bottom cutting edge 5 is used for processing a middle groove bottom 14 of SAE J1962 series sealing holes; the groove sidewall cutting edge 6 is used to machine the middle groove sidewall 15 of an SAE J1962 series seal hole.
As an alternative embodiment, the tool provided in this embodiment for machining the seal hole may be a welding type tool or a machine-clamping type tool. For example, the tool is designed to be a mechanical clamping type tool when used for machining more than 8 sealing holes in SAE J1962 series sealing holes; no. 8 and No. 8 below sealing holes are designed into welding type cutters. In the embodiment, the blade adopts the TiALN coating, so that the service life of the cutter is greatly prolonged. The blade edge of the hard alloy coating blade is ground into a cutting edge with the same shape as the sealing hole, the blade is fixedly connected in the cutter groove through a bolt to form a mechanical clamping type cutter, and the blade is welded in the cutter groove to form a welding type cutter. The cutter is provided with 4 chip grooves which are uniformly distributed on the circumference, and the requirement on the inner wall of the sealing hole is higher, so that 4 blades are designed and installed for ensuring the smooth finish of the inner wall, and the chip grooves are axially grooved.
To sum up, the utility model provides a cutter for processing SAE J1962 series seal hole carries out disposable processing to the size in the aspect of 6 different diameters, shape and the same axiality that involve on the same axis on the product, and the dimensional stability in the aspect of all diameters, the axiality uniformity is good. And in order to reduce the abrasion of the cutter and prolong the service life of the cutter, an inner cooling structure is designed. The cutter type of multiple different specifications is combined into a cutter, and an inner cooling structure is designed, namely, the cutter type is reduced, the accumulated error in the machining process is eliminated, the size requirement and the form and position tolerance are effectively controlled, the machining time and the machining period are shortened, the machining cost is reduced, the service life of the cutter is prolonged, the machining efficiency is improved, the product quality is stable, the product reject ratio is reduced, and the operation cost is effectively controlled.
The above-mentioned embodiments only express the embodiments of the present invention, but not should be understood as the limitation of the scope of the invention patent, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and these all fall into the protection scope of the present invention.
Claims (2)
1. A tool for machining a sealing hole is characterized by comprising a tool shank (17), a tool bit (9) and a blade (16);
four chip flutes (7) are formed in the tool bit (9), the four chip flutes (7) are uniformly distributed on the side wall of the tool bit (9) along the circumferential direction, and each chip flute (7) is formed in the axial direction of the tool bit (9); an inner cooling hole (8) is formed in the center of the cutter head (9) along the axial direction;
the four blades (16) are respectively arranged in the four chip flutes (7), each blade (16) is sequentially provided with a conical surface cutting edge (1), a threaded bottom hole cutting edge (2), a first middle conical surface cutting edge (3), a second middle conical surface cutting edge (4), a groove bottom surface cutting edge (5) and a groove side wall cutting edge (6), and each cutting edge is provided with a front cutter surface and a rear cutter surface; the rake face of each cutting edge is in contact with a workpiece and has a rake angle, and the flank face of each cutting edge is in contact with the workpiece and has a first relief angle and a second relief angle, wherein the rake angle of each cutting edge is 5-8 degrees, the first relief angle is 5-10 degrees, and the second relief angle is 20-30 degrees; the width of the cutting land of each cutting edge is 3mm, and the width of the rear cutter face is 1 mm;
the conical surface cutting edge (1) is used for machining a conical surface (10) of the sealing hole; the thread bottom hole cutting edge (2) is used for machining a thread bottom hole (11) of a sealing hole; the first middle conical surface cutting edge (3) is used for machining a first middle conical surface (12) of the sealing hole; the second middle conical surface cutting edge (4) is used for machining the second middle conical surface (13) of the sealing hole; the groove bottom cutting edge (5) is used for processing a middle groove bottom (14) of the sealing hole; the groove side wall cutting edge (6) is used for machining a middle groove side wall (15) of the sealing hole.
2. The tool for machining a seal hole as claimed in claim 1, wherein the tool for machining a seal hole is a welding type tool or a machine-clamping type tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920674869.2U CN209849960U (en) | 2019-05-13 | 2019-05-13 | Cutter for machining sealing hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920674869.2U CN209849960U (en) | 2019-05-13 | 2019-05-13 | Cutter for machining sealing hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209849960U true CN209849960U (en) | 2019-12-27 |
Family
ID=68940843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920674869.2U Expired - Fee Related CN209849960U (en) | 2019-05-13 | 2019-05-13 | Cutter for machining sealing hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209849960U (en) |
-
2019
- 2019-05-13 CN CN201920674869.2U patent/CN209849960U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191227 |