CN202207812U - Boring cutter - Google Patents
Boring cutter Download PDFInfo
- Publication number
- CN202207812U CN202207812U CN2011202933787U CN201120293378U CN202207812U CN 202207812 U CN202207812 U CN 202207812U CN 2011202933787 U CN2011202933787 U CN 2011202933787U CN 201120293378 U CN201120293378 U CN 201120293378U CN 202207812 U CN202207812 U CN 202207812U
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- China
- Prior art keywords
- hole
- cutter
- spring
- awl core
- push rod
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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 - Lifetime
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Abstract
The utility model relates to a boring cutter, in particular to a boring cutter which is used for boring and machining a hole on a boring machine. The boring cutter comprises a body, wherein the body is provided with a central hole, and a hydraulic cylinder is arranged at the rear end of the body; a seal cover is arranged at the front end of the body; a conical core is arranged in the front section of a central hole; one end of the conical core, which is close to a piston rod, is provided with a mandril; a second spring is sleeved on the middle section of the mandril; two ends of the mandril respectively support against the piston rod and the conical core; a first spring is arranged between the conical core and the seal cover; a radial sliding hole is arranged on the front end of the body in the circumferential direction, and a cutter block is arranged in the radial sliding hole; the body wall at one side of the radial sliding hole and the cutter block are provided with inclined holes, and outer ends of the inclined holes are spirally provided with compression screws; and one side of the cutter block is also provided with an inclined hole which corresponds to the inclined hole on the body wall, and a compression screw and a third spring are arranged between the two inclined holes. The boring cutter is characterized in that the center of one end of the mandril, adjacent to the conical core, is provided with a blind hole, the hole bottom of the blind hole is spherical, a short rod is arranged in the blind hole, and two ends of the short rod are a concave spherical end and a convex spherical end respectively and support against the hole bottom and the top of the blind hole respectively. A workpiece manufactured by the boring cutter disclosed by the utility model has good quality.
Description
Technical field
The utility model relates to a kind of cutter.Specifically, be to be used on the boring machine boring cutter that boring processing is handled usefulness is carried out in the hole.
Background technology
Know all that in field of machining being used on the boring machine that at present boring processing is carried out in the hole, to handle the boring cutter of usefulness all be traditional product.This boring cutter comprises body, and this body is a column, is processed with centre bore on the body.The body rear end is provided with hydraulic jack, and the piston rod of hydraulic jack is moving type and stretches in the centre bore back segment.The body front end is fixed with capping, and the awl core is installed in the leading portion of centre bore, and the lateral surface of this awl core is the elongated conical surface.Be provided with and bore top that core forms as one and offset with piston rod near awl core one end of piston rod, wherein outer face, top and piston rod outer face are the plane.Be provided with spring between the other end of awl core and capping.The leading portion of body circumferentially is processed with radially slide opening, radially is provided with the cutter piece in the slide opening.The medial surface of said cutter piece be the elongated conical surface and and awl core lateral surface between be and be slidingly matched, the radial thickness of cutter piece makes cutter piece medial surface protrusion in the leading portion of centre bore greater than the leading portion wall thickness of body.Radially on the body wall of slide opening one side inclined hole is arranged, the outer end of this inclined hole is rotary with housing screw.Cutter piece one side also has inclined hole, and this inclined hole is corresponding with inclined hole on the body wall, between two inclined holes spring is arranged, and offsets at the bottom of the inclined hole hole on spring one end and the cutter piece, offsets at the bottom of the inclined hole hole on the other end and the body wall.During work, earlier promote top and the reach of awl core by hydraulic jack and piston rod thereof, make the cutter piece radially slide opening move outward, after the cutter piece moves to its lateral surface and the hole wall of workpiece to be machined contacts, can begin that boring is carried out in the hole on the workpiece and process.Process finishing, the piston rod withdrawal through hydraulic jack, top and awl core move after can be under spring action, and the cutter piece is radially moved in the slide opening, make the cutter piece and the hole wall of workpiece to be machined is left in the side outward.Because outer face, top and piston rod outer face are the plane, the cutter piece is difficult for floating in the boring process, thereby the unbalance stress situation occurs, and the workpiece quality that therefore processes is relatively poor.
The utility model content
The problem that the utility model will solve provides a kind of boring cutter.Adopt this boring cutter, the workpiece quality that processes is good.
For addressing the above problem, take following technical scheme:
A kind of boring cutter
The boring cutter of the utility model comprises body, and this body is a column, and centre bore is arranged on the body, and the leading portion diameter of said centre bore is greater than back segment.There is hydraulic jack the body rear end, and the piston rod of hydraulic jack is moving type and stretches in the centre bore back segment.The body front end has capping, and the awl core is arranged in the leading portion of centre bore.Awl core one end near piston rod has push rod, and the two ends diameter of push rod is greater than the diameter between wherein, so that form the retaining head at the push rod two ends.Be with second spring on the interlude of push rod, second both ends of the spring offsets with the retaining head at push rod two ends respectively.Push rod one end and piston rod offset, and the other end offsets with the neighboring terminal of awl core.Between the other end of awl core and capping first spring is arranged.The leading portion of body circumferentially has radially slide opening, and the cutter piece is radially arranged in the slide opening, and the radial thickness of cutter piece makes cutter piece medial surface protrusion in the leading portion of centre bore greater than the leading portion wall thickness of body.Radially on the body wall of slide opening one side inclined hole is arranged, the outer end of this inclined hole is rotary with housing screw.Cutter piece one side also has inclined hole, and this inclined hole is corresponding with inclined hole on the body wall, between two inclined holes spring is arranged, and offsets at the bottom of the inclined hole hole on spring one end and the cutter piece, offsets at the bottom of the inclined hole hole on the other end and the body wall.The medial surface of said cutter piece is taper surface with the lateral surface of awl core, and the tapering of the two is equal, in the opposite direction.Being characterized in and boring the adjacent push rod of core one end center has blind hole, is spherical at the bottom of the hole of blind hole.Quarter butt is arranged in the blind hole, and the quarter butt two ends are respectively concave ball shape end and protruding spheric end, and concave ball shape end and said top offset, and offset at the bottom of the hole of protruding spheric end and blind hole.
The further improvement project of the utility model is fluted on the awl core cylindrical, is between the cell wall of groove and awl core outer surface to seamlessly transit; On the cutter piece boss is arranged, the boss bottom seamlessly transits to being between the boss outer surface; Under off working state, said boss is in the said groove; During work, said boss offsets with the awl core outer surface.
Take such scheme, have the following advantages:
Because there is blind hole at center, piston rod outer end, be spherical at the bottom of the hole of blind hole.Quarter butt is arranged in the blind hole, and the quarter butt two ends are respectively concave ball shape end and protruding spheric end, and concave ball shape end and said top offset, and offset at the bottom of the hole of protruding spheric end and blind hole.Make the cutter piece in the boring process, float easily, thereby stressed even, the workpiece quality that therefore adopts the utility model to process is better.
Description of drawings
Fig. 1 is the boring cutter structural representation of the utility model;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, the boring cutter of the utility model comprises body 8, and this body is a column.For saving material, be processed with two steps 14 on the back segment cylindrical of body 8, make body 8 leading portion diameters greater than back segment.Be processed with centre bore 15 on the body 8, the front portion one end section diameter of centre bore 15 is greater than its back segment.Body 8 rear ends are provided with hydraulic jack 13, and piston rod 12 1 ends of hydraulic jack 13 are fixed together by screw and body 8 rear ends, make piston rod 12 be moving type and stretch in centre bore 15 back segments.Body 8 front ends are provided with capping 4, are fixed on the front end of body 8 through screw around the inner surface of capping 4.Be provided with awl core 6 in the leading portion of said centre bore 15.
Awl core 6 one ends near piston rod 12 are provided with push rod 11, and the two ends diameter of push rod 11 is all greater than the diameter between wherein, so that form retaining 9 at push rod 11 two ends, and the cylindrical at push rod 11 two ends and 15 of centre bores are and are slidingly matched.Being with second spring, 10, the second springs, 10 two ends on the interlude of push rod 11 offsets with the retaining at push rod 11 two ends 9 respectively.One end of push rod 11 and piston rod 12 1 ends offset, and the other end offsets with the neighboring terminal of awl core 6.
One end of awl core 6 axially is processed with radially outer lug boss 2; Radially be processed with radially inner convex platform 1 on the corresponding centre bore 15 of boss body 8 inwalls all around with this; The internal diameter of said radially inner convex platform 1 is less than the external diameter of said radially outer lug boss 2; And said radially outer lug boss 2 is in said radially inner convex platform 1 outside, so as to the awl core 6 axially carry out spacing.Be provided with first spring 3 at awl core 6 and 4 of cappings; The neighboring terminal center of capping 4 medial surface centers and said awl core 6 all is processed with circular pit, and first spring, 3 two ends offset with capping 4 medial surface central circular pits and awl core 6 one end central circular pits respectively.The leading portion of body 8 circumferentially is processed with radially slide opening, radially has in the slide opening and is furnished with cutter piece 5, and the radial thickness of cutter piece 5 is greater than the leading portion wall thickness of body 8, makes in the protruding leading portion that is in centre bore 15 of cutter piece 5 medial surfaces.See Fig. 2, on body 8 walls of slide opening one side radially, be processed with inclined hole, the outer end of this inclined hole is rotary with housing screw 16.Cutter piece 5 one sides also are processed with inclined hole, and this inclined hole is corresponding with inclined hole on body 8 walls, offset at the bottom of the inclined hole hole on the 3rd spring 17, the three springs, 17 1 ends and the cutter piece 5 is installed between two inclined holes, offset at the bottom of the inclined hole hole on the other end and body 8 walls.The medial surface of said cutter piece 5 is taper surface with the lateral surface of awl core 6, and the tapering of the two is equal, in the opposite direction.
On awl core 6 cylindricals, be processed with two grooves, the cell wall of groove seamlessly transits with boring to be between core 6 outer surfaces.Be processed with boss on the medial surface of cutter piece 5, the boss bottom seamlessly transits to being between the boss outer surface.Under off working state, said boss is in the said groove.During work, said boss offsets with awl core 6 outer surfaces.
Stability when working for improving awl core 6 is processed with blind hole with awl core 6 adjacent push rod 11 1 ends, is spherical at the bottom of the hole of blind hole.Quarter butt 7 is installed in the blind hole, and quarter butt 7 two ends are respectively protruding spheric end and concave ball shape end, offset at the bottom of its protruding spheric end and the hole, and the concave ball shape end offsets with the top (601) of awl core 6 neighboring terminals.
Claims (2)
1. a boring cutter comprises body (8), and this body is a column, and centre bore (15) is arranged on the body, and the leading portion diameter of said centre bore (15) is greater than back segment; There is hydraulic jack (13) body (8) rear end, and the piston rod (12) of hydraulic jack (13) is moving type and stretches in centre bore (15) back segment; Body (8) front end has capping (4), and awl core (6) is arranged in the leading portion of centre bore (15); Awl core (6) one ends near piston rod (12) have push rod (11), and the two ends diameter of push rod (11) is greater than the diameter between wherein, so that form retaining head (9) at push rod (11) two ends; Be with second spring (10) on the interlude of push rod (11), second spring (10) two ends offset with the retaining head (9) at push rod (11) two ends respectively; Push rod (11) one ends and piston rod (12) offset, and the other end offsets with the neighboring terminal of awl core (6); Between the other end of awl core (6) and capping (4) first spring (3) is arranged; The leading portion of body (8) circumferentially has radially slide opening, and cutter piece (5) is radially arranged in the slide opening, and the radial thickness of cutter piece (5) makes cutter piece (5) medial surface protrusion in the leading portion of centre bore (15) greater than the leading portion wall thickness of body (8); Radially on body (8) wall of slide opening one side inclined hole is arranged, the outer end of this inclined hole is rotary with housing screw (16); Cutter piece (5) one sides also have inclined hole; This inclined hole is corresponding with inclined hole on body (8) wall; The 3rd spring (17) is arranged between two inclined holes, offset at the bottom of the inclined hole hole on the 3rd spring (17) one ends and the cutter piece (5), offset at the bottom of the inclined hole hole on the other end and body (8) wall; The medial surface of said cutter piece (5) is taper surface with the lateral surface of awl core (6), and the tapering of the two is equal, in the opposite direction; It is characterized in that with adjacent push rod (11) the one end centers of awl core (6) blind hole being arranged, is spherical at the bottom of the hole of blind hole; Quarter butt (7) is arranged in the blind hole, and quarter butt (7) two ends are respectively concave ball shape end and protruding spheric end, and the concave ball shape end offsets with the top (601) of awl core (6) one ends, offsets at the bottom of the hole of protruding spheric end and blind hole.
2. boring cutter according to claim 1 is characterized in that boring on core (6) cylindrical fluted, is between the cell wall of groove and awl core (6) outer surface and seamlessly transits; The cutter piece has boss on (5), and the boss bottom seamlessly transits to being between the boss outer surface; Under off working state, said boss is in the said groove; During work, said boss offsets with awl core (6) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202933787U CN202207812U (en) | 2011-08-14 | 2011-08-14 | Boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202933787U CN202207812U (en) | 2011-08-14 | 2011-08-14 | Boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202207812U true CN202207812U (en) | 2012-05-02 |
Family
ID=45987368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202933787U Expired - Lifetime CN202207812U (en) | 2011-08-14 | 2011-08-14 | Boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202207812U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284722A (en) * | 2011-08-14 | 2011-12-21 | 无锡振华机械有限公司 | Boring cutter |
| CN102658496A (en) * | 2012-05-17 | 2012-09-12 | 无锡市瑞尔精密机械股份有限公司 | Inner hole annular groove machining device |
| CN112276221A (en) * | 2020-10-21 | 2021-01-29 | 德州普利森机床有限公司 | Drawing and planing tool for machining multi-head rifling |
-
2011
- 2011-08-14 CN CN2011202933787U patent/CN202207812U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284722A (en) * | 2011-08-14 | 2011-12-21 | 无锡振华机械有限公司 | Boring cutter |
| CN102658496A (en) * | 2012-05-17 | 2012-09-12 | 无锡市瑞尔精密机械股份有限公司 | Inner hole annular groove machining device |
| CN112276221A (en) * | 2020-10-21 | 2021-01-29 | 德州普利森机床有限公司 | Drawing and planing tool for machining multi-head rifling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |
|
| CX01 | Expiry of patent term |