CN217749386U - Floating boring cutter - Google Patents
Floating boring cutter Download PDFInfo
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- CN217749386U CN217749386U CN202221489996.3U CN202221489996U CN217749386U CN 217749386 U CN217749386 U CN 217749386U CN 202221489996 U CN202221489996 U CN 202221489996U CN 217749386 U CN217749386 U CN 217749386U
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Abstract
The utility model relates to a floating boring cutter, which comprises a cutter bar component, a floating cutter holder component and a limiting component, wherein the cutter bar component comprises a cutter bar with an axial through hole, and a chute is arranged on the cutter bar along the axial direction; the floating tool apron assembly comprises a floating tool apron and a blade, the floating tool apron is installed in the axial through hole, the outer wall of the floating tool apron is in sliding fit with the inner wall of the axial through hole, and the blade extends out of the sliding groove and can slide along the sliding groove; the limiting assembly bag is connected with the floating tool apron and can drive the floating tool apron to slide in the axial through hole of the tool bar. The utility model discloses an along the unsteady boring cutter of lathe main shaft axial realize getting rid of the radial burr of the inside precast cavity terminal surface of hydrovalve.
Description
Technical Field
The utility model relates to a boring cutter technical field that floats relates to a boring cutter floats.
Background
The oil duct inner cavity can be pre-cast in the hydraulic valve usually, certain pre-cast cavities can divide a processed valve core hole into a plurality of sections, burrs can be formed at the intersection of the processed valve core hole and the inner cavity during valve core hole processing, the side wall of the cavity where the burrs are located is a casting blank surface, the position change of different workpieces in the same batch is large, and the burrs are radial.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a boring cutter floats has solved among the prior art when getting rid of hydrovalve downthehole wall burr inefficiency and get rid of the relatively poor problem of effect.
The floating boring tool comprises a tool bar assembly, a floating tool apron assembly and a limiting assembly, wherein the tool bar assembly comprises a tool bar with an axial through hole, and a sliding groove is formed in the tool bar along the axial direction;
the floating tool apron assembly comprises a floating tool apron and a blade, the floating tool apron is installed in the axial through hole, the outer wall of the floating tool apron is in sliding fit with the inner wall of the axial through hole, and the blade extends out of the sliding groove and can slide along the sliding groove;
the limiting assembly bag is connected with the floating tool apron and can drive the floating tool apron to slide in the axial through hole of the tool bar.
Preferably, the axial through hole is a cylindrical stepped hole, the cylindrical stepped hole comprises a large-diameter hole, a medium-diameter hole and a small-diameter hole, the diameters of the large-diameter hole, the medium-diameter hole and the small-diameter hole are gradually reduced, and the floating tool apron is installed in the large-diameter hole.
Preferably, the cutter bar assembly further comprises an end cover and a plurality of first screws, and the end cover is mounted at one end, close to the large-diameter hole, of the cutter bar through the plurality of first screws.
Preferably, the floating tool apron assembly further comprises a spring and a spring seat, the outer wall of the spring is attached to the inner wall of the middle diameter hole, one end of the spring is in contact with the floating tool apron, the other end of the spring is connected with the spring seat, a first center hole for circulating cutting fluid is formed in the spring seat, and one end of the screw rod is in contact with the base of the spring seat.
Preferably, the limiting assembly comprises a screw and a nut, an inner thread matched with an outer thread of the screw is arranged on the inner wall of the small-diameter hole, one end of the screw is screwed into the small-diameter hole, the screw is connected with the floating tool apron and can drive the floating tool apron to slide in the large-diameter hole of the cutter bar, and the nut is used for fastening the screw.
Preferably, a first guide groove and a second guide groove are symmetrically formed in the large-diameter hole along the radial direction, and a first guide block matched with the first guide groove and a second guide block matched with the second guide groove are arranged on the outer wall of the floating tool apron respectively.
Preferably, the floating tool apron assembly further comprises a blade groove and a second screw, the blade groove used for installing the blade is formed in one end of the floating tool apron, an internal thread matched with the external thread of the second screw is formed in the blade groove, and a second center hole used for circulating cutting fluid is formed in the floating tool apron in the axial direction.
Preferably, a boss is arranged at one end, close to the large-diameter hole, of the end cover, and a flow groove is formed in the boss.
Preferably, the base diameter of the spring seat is larger than the diameter of the small-diameter hole.
Preferably, a third central hole for circulating the cutting fluid is formed in the screw rod along the axial direction.
The beneficial effects of the utility model reside in that:
1. the utility model can remove the burrs on the side wall of the precast cavity by making the axes of the cutter bar and the valve core hole extend into the valve core hole in a biased way, thereby improving the processing efficiency and the processing precision of the hydraulic valve;
2. the utility model can float along the axial direction of the cutter bar to avoid damaging the valve core hole structure, and ensure the processing safety;
3. the utility model has the advantages of low cost, simple structure, safety, reliability, etc.
Drawings
Fig. 1 is a schematic structural view of a floating boring tool of the present invention;
FIG. 2 is a schematic view of the structure of the cutter bar of the present invention;
FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;
FIG. 4 is a left side view of FIG. 2;
FIG. 5 is a schematic structural view of a floating tool holder according to the present invention;
FIG. 6 is a right side view of FIG. 5;
FIG. 7 is a schematic structural view of a spring seat of the present invention;
FIG. 8 is a right side view of FIG. 7;
fig. 9 is a schematic structural view of the end cap of the present invention;
FIG. 10 is a left side view of FIG. 9;
FIG. 11 is a right side view of FIG. 9;
FIG. 12 is a schematic structural view of the screw rod of the present invention;
FIG. 13 is a left side view of FIG. 12;
description of the reference numerals:
1-a cutter bar component, 110-a cutter bar, 111-a sliding groove, 112-a large-diameter hole, 113-a middle-diameter hole, 114-a small-diameter hole, 115-a first guide groove, 116-a second guide groove, 120-an end cover, 121-a lug boss,
122-runner, 130-first screw;
2-floating tool holder assembly, 210-floating tool holder, 211-first guide block, 212-second guide block, 213-second center hole, 220-blade, 230-spring, 240-spring seat, 241-first center hole, 250-blade slot, 260-second screw;
3-limiting component, 310-screw rod, 311-third central hole, 320-nut.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, in particular, a floating boring cutter comprises a cutter bar assembly 1, a floating cutter holder assembly 2 and a limiting assembly 3, wherein the cutter bar assembly 1 comprises a cutter bar 110 provided with an axial through hole therein, and a sliding groove 111 is formed in the cutter bar 110 along the axial direction;
the floating tool apron assembly 2 comprises a floating tool apron 210 and a blade 220, the floating tool apron 210 is installed in the axial through hole, the outer wall of the floating tool apron 210 is in sliding fit with the inner wall of the axial through hole, and the blade 220 extends out of the sliding groove 111 and can slide along the sliding groove 111;
the limiting component 3 is connected to the floating tool holder 210 and can drive the floating tool holder 210 to slide in the axial through hole of the tool bar 110.
As another specific solution, the axial through hole is a cylindrical stepped hole, the cylindrical stepped hole includes a large-diameter hole 112, a medium-diameter hole 113 and a small-diameter hole 114, the diameters of which are gradually reduced, and the floating tool holder 210 is installed in the large-diameter hole 112.
The structure limits different structures through the cylindrical stepped hole.
Specifically, as shown in fig. 2 to 4, the tool bar assembly 1 further includes an end cap 120 and a plurality of first screws 130, and the end cap 120 is mounted on one end of the tool bar 110 near the large-diameter hole 112 through the plurality of first screws 130.
Specifically, as shown in fig. 9 to 11, a boss 121 is disposed at one end of the end cover 120 close to the large-diameter hole 112, and a flow groove 122 is disposed in the boss 121.
As another specific scheme, as shown in fig. 5 to 8, the floating tool holder assembly 2 further includes a spring 230 and a spring seat 240, an outer wall of the spring 230 is attached to an inner wall of the intermediate diameter hole 113, one end of the spring 230 contacts the floating tool holder 210, and the other end of the spring is connected to the spring seat 240, a first central hole 241 for flowing cutting fluid is provided in the spring seat 240, and one end of the screw 310 contacts a base of the spring seat 240;
preferably, the base diameter of the spring seat 240 is greater than the diameter of the small diameter bore 114.
This arrangement ensures that the spring 230 is retained within the bore 113.
As another specific solution, as shown in fig. 12 to 13, the limiting component 3 includes a screw 310 and a nut 320, the inner wall of the small-diameter hole 114 is provided with an internal thread matching with the external thread of the screw 310, one end of the screw 310 is screwed into the small-diameter hole 114, the screw 310 is connected to the floating tool holder 210 and can drive the floating tool holder 210 to slide in the large-diameter hole 112 of the tool holder 110, and the nut 320 is used for fastening the screw 310.
Specifically, a third central hole 311 for circulating cutting fluid is axially formed in the screw 310, and a hexagonal counter bore is formed in one end of the screw 310.
The structure is that the floating boring cutter comprises a cutter bar 110, an end cover 120 is arranged outside the cutter bar 110, a first screw 130 is arranged between the cutter bar 110 and the end cover 120, a floating cutter holder 210 is arranged inside the end cover 120, a blade 220 is arranged outside the floating cutter holder 210, a second screw 260 is arranged outside the blade 220, a spring 230 is arranged inside the floating cutter holder 210, a spring seat 240 is arranged inside the spring 230, a screw 310 is arranged outside the spring seat 240, and a nut 320 is arranged between the screw 310 and the cutter bar 110.
As another specific scheme, as shown in fig. 3, a first guide groove 115 and a second guide groove 116 are symmetrically formed in the large-diameter hole 112 along the radial direction, and a first guide block 211 and a second guide block 212, which are respectively matched with the first guide groove 115 and the second guide groove 116, are formed on the outer wall of the floating tool holder 210.
With such a structure, when the tool holder 110 rotates along with the machine spindle, the floating tool holder 210 can move along with the tool holder 110 to drive the blade 220 to rotate.
As another specific solution, as shown in fig. 5-6, the floating tool holder assembly 2 further includes an insert groove 250 and a second screw 260, one end of the floating tool holder 210 is provided with the insert groove 250 for mounting the insert 220, the insert groove 250 is provided with an internal thread matching with the external thread of the second screw 260, and the floating tool holder 210 is provided with a second central hole 213 for flowing cutting fluid along the axial direction.
With this structure, the first center hole 241, the second center hole 213, the third center hole 311, and the flow groove 122 are used to circulate the cutting fluid and spray it onto the cutting edge of the insert 220.
The working principle of the utility model is as follows:
as shown in fig. 1-13, before use, a floating boring tool pushes a spring seat 240 to compress a spring 230 to generate axial pre-tightening force on a floating tool holder 210 by tightening a screw 310, and a nut 320 is tightened to fix the screw 310; during machining, the cutter bar 110 is fixed on a cutter handle of a main shaft of a machine tool, and cutting fluid flows out of the cutter handle and is sprayed to a cutting edge of the blade 220 through a third center hole 311 of the screw 310, a first center hole 241 of the spring seat 240, a second center hole 213 of the floating cutter seat 210 and a runner 122 on the end cover 120; after the floating boring cutter is biased to extend into a valve core hole in a hydraulic valve, when the blade 220 reaches a machining position, the axis of the cutter rod 110 is superposed with the axis of the valve core hole, the machine tool spindle starts to rotate and feed along the axial direction, so that the blade 220 is driven to rotate and feed along the axial direction, the rotating diameter of the cutter point of the blade 220 is larger than the diameter of the valve core hole, the cutting edge of the blade 220 is in contact with and removes burrs, and when the burr is removed by the blade 220 and the machine tool spindle continues to feed, the floating cutter holder 210 compresses the spring 230 to prevent the blade 220 from continuing to feed, so that the structure of the valve core hole is prevented from being damaged.
To sum up, the utility model discloses a make cutter arbor 110 axis and case hole axis offset stretch into the case hole, can get rid of precast cavity lateral wall burr, can follow cutter arbor 110 axial through making blade 220 and float and avoid destroying case hole structure, improved the machining efficiency and the machining precision of hydrovalve.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, it is not intended to limit the present invention, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any introduction modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention will still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A floating boring tool is characterized by comprising a tool bar assembly, a floating tool apron assembly and a limiting assembly, wherein the tool bar assembly comprises a tool bar with an axial through hole, and a sliding groove is formed in the tool bar along the axial direction;
the floating tool apron assembly comprises a floating tool apron and a blade, the floating tool apron is installed in the axial through hole, the outer wall of the floating tool apron is in sliding fit with the inner wall of the axial through hole, and the blade extends out of the sliding groove and can slide along the sliding groove;
the limiting assembly bag is connected with the floating tool apron and can drive the floating tool apron to slide in the axial through hole of the tool bar.
2. The floating boring tool as claimed in claim 1, wherein the axial through hole is a cylindrical stepped hole including a large-diameter hole, a medium-diameter hole and a small-diameter hole which are gradually reduced in diameter, and the floating tool holder is mounted in the large-diameter hole.
3. The floating boring tool as claimed in claim 2 wherein the cutter bar assembly further comprises an end cap and a plurality of first screws, the end cap being mounted to the end of the cutter bar adjacent the large diameter bore by the plurality of first screws.
4. The floating boring tool as claimed in claim 2, wherein the position limiting assembly comprises a screw and a nut, the inner wall of the small diameter hole is provided with an internal thread matching with the external thread of the screw, one end of the screw is screwed into the small diameter hole, the screw is connected with the floating tool apron and can drive the floating tool apron to slide in the large diameter hole of the tool bar, and the nut is used for fastening the screw.
5. The floating boring tool as claimed in claim 4, wherein the floating tool holder assembly further comprises a spring and a spring seat, the outer wall of the spring is attached to the inner wall of the bore, one end of the spring contacts with the floating tool holder and the other end of the spring is connected with the spring seat, a first center hole for flowing cutting fluid is arranged in the spring seat, and one end of the screw rod contacts with the base of the spring seat.
6. The floating boring tool as claimed in claim 2, wherein the large-diameter hole is symmetrically provided with a first guide slot and a second guide slot along a radial direction, and the outer wall of the floating tool holder is provided with a first guide block and a second guide block, wherein the first guide block and the second guide block are respectively matched with the first guide slot and the second guide slot.
7. The floating boring tool as claimed in claim 1, wherein the floating tool holder assembly further comprises a blade slot and a second screw, the floating tool holder has a blade slot for mounting the blade at one end, the blade slot has an internal thread matching with the external thread of the second screw, and the floating tool holder has a second central hole for passing the cutting fluid axially.
8. The floating boring tool as claimed in claim 3 wherein the end of the end cap adjacent the large diameter bore is provided with a boss in which a launder is provided.
9. The floating boring tool as claimed in claim 5, wherein the seat diameter of the spring seat is larger than the diameter of the small diameter hole.
10. The floating boring tool as claimed in claim 5 wherein the screw has a third central bore axially disposed therein for the passage of cutting fluid therethrough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221489996.3U CN217749386U (en) | 2022-06-15 | 2022-06-15 | Floating boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221489996.3U CN217749386U (en) | 2022-06-15 | 2022-06-15 | Floating boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217749386U true CN217749386U (en) | 2022-11-08 |
Family
ID=83891891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221489996.3U Active CN217749386U (en) | 2022-06-15 | 2022-06-15 | Floating boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217749386U (en) |
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2022
- 2022-06-15 CN CN202221489996.3U patent/CN217749386U/en active Active
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