CN102284722A - Boring cutter - Google Patents
Boring cutter Download PDFInfo
- Publication number
- CN102284722A CN102284722A CN2011102313736A CN201110231373A CN102284722A CN 102284722 A CN102284722 A CN 102284722A CN 2011102313736 A CN2011102313736 A CN 2011102313736A CN 201110231373 A CN201110231373 A CN 201110231373A CN 102284722 A CN102284722 A CN 102284722A
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- hole
- cutter
- spring
- awl core
- push rod
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Abstract
The invention relates to a boring cutter and particularly relates to the boring cutter which is used for performing boring machining treatment on a hole on a boring machine. The boring cutter comprises a body, wherein a center hole is arranged on the body and a hydraulic oil cylinder is arranged at the back end of the body. A sealing cover is arranged at the front end of the body and a tapered core is arranged in the front section of the center hole. An ejector rod is arranged at one end of the tapered core, which is close to a piston rod. A second spring is sheathed on the middle section of the ejector rod. The two ends of the ejector rod push against the piston rod and the tapered core respectively. A first spring is arranged between the tapered core and the sealing cover. A radial sliding hole is arranged at the front section of the body in the circumferential direction and a cutter block is arranged in the radial sliding hole. Inclined holes are arranged on the body wall at one side of the radial sliding hole and the cutter block, and a compression screw is screwed at the outer end of each inclined hole. The inclined hole is also arranged at one side of the cutter block, the inclined hole corresponds to the inclined hole on the body wall and the compression screw and a third spring are arranged between the two inclined holes. The boring cutter is characterized in that a blind hole is arranged at the center of one end of the ejector rod adjacent to the taper core, the hole bottom of the blind hole is spherical, a short rod is arranged in the blind hole, and the two ends of the short rod are the concave spherical end and the convex spherical end respectively and push against the hole bottom of the blind hole and a top head respectively. The quality of a workpiece machined by adopting the boring cutter is good.
Description
Technical field
The present invention relates to a kind of cutter.Specifically, be to be used on the boring machine boring cutter that usefulness is handled in boring processing 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 described 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 protrude 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 by 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 outer and the hole wall of workpiece to be machined is left in the side.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 therefore the workpiece quality that processes is relatively poor.
Summary of the invention
The problem to be solved in the present invention 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
Boring cutter of the present invention comprises body, and this body is a column, and centre bore is arranged on the body, and the leading portion diameter of described 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 in the middle of it, so that at push rod two ends formation retaining head.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 protrude 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 lateral surface of the medial surface of described cutter piece and awl core is taper surface, and the tapering of the two equates, direction is opposite.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 described top offset, and offset at the bottom of the hole of protruding spheric end and blind hole.
The further improvement of the present invention scheme 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, described boss is in the described groove; During work, described 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 described top offset, and offset at the bottom of the hole of protruding spheric end and blind hole.Make the cutter piece float easily in the boring process, thereby stressed even, therefore the workpiece quality that adopts the present invention to process is better.
Description of drawings
Fig. 1 is a boring cutter structural representation of the present invention;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, boring cutter of the present invention 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 by screw around the inner surface of capping 4.Be provided with awl core 6 in the leading portion of described centre bore 15.
Be provided with push rod 11 near awl core 6 one ends of piston rod 12, the two ends diameter of push rod 11 is all greater than the diameter in the middle of it, 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 described radially inner convex platform 1 is less than the external diameter of described radially outer lug boss 2, and described radially outer lug boss 2 is in described 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 described 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, be processed with inclined hole on body 8 walls of slide opening one side radially, 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 lateral surface of the medial surface of described cutter piece 5 and awl core 6 is taper surface, and the tapering of the two equates, direction is opposite.
Be processed with two grooves on awl core 6 cylindricals, 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, described boss is in the described groove.During work, described boss offsets with awl core 6 outer surfaces.
Stability when improving 6 work of awl core, push rod 11 one ends adjacent with awl core 6 are processed with blind hole, be sphere 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 described 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 in the middle of it, so that at push rod (11) two ends formation retaining heads (9); 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 protrude 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 lateral surface of the medial surface of described cutter piece (5) and awl core (6) is taper surface, and the tapering of the two equates, direction is opposite; It is characterized in that there is blind hole at push rod (11) the one end centers adjacent with awl core (6), 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, described boss is in the described groove; During work, described boss offsets with awl core (6) outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102313736A CN102284722A (en) | 2011-08-14 | 2011-08-14 | Boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102313736A CN102284722A (en) | 2011-08-14 | 2011-08-14 | Boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102284722A true CN102284722A (en) | 2011-12-21 |
Family
ID=45331622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102313736A Pending CN102284722A (en) | 2011-08-14 | 2011-08-14 | Boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102284722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047801A (en) * | 2018-09-30 | 2018-12-21 | 西安鑫旺矿业设备有限公司 | A kind of blind hole boring cutter component |
| CN109986383A (en) * | 2019-04-15 | 2019-07-09 | 太原科技大学 | A kind of automatic positioning locking device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08336707A (en) * | 1995-06-12 | 1996-12-24 | Seiichi Kobayashi | Bolt hole periphery knurling tool |
| CN200951469Y (en) * | 2006-10-19 | 2007-09-26 | 武裕 | Boring roller head |
| CN101091995A (en) * | 2006-06-23 | 2007-12-26 | 德州德隆(集团)机床有限责任公司 | Combined boring head for deep hole |
| DE102007042960B3 (en) * | 2007-08-30 | 2008-08-28 | MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG | Extending tool cutting internal spherical surfaces in differential gear casings, includes piston-cylinder unit operated from cooling lubricant supply |
| CN101628343A (en) * | 2009-07-29 | 2010-01-20 | 常州市西夏墅工具研究所有限公司 | Boring and rolling combined processing tool |
| CN202207812U (en) * | 2011-08-14 | 2012-05-02 | 无锡振华机械有限公司 | Boring cutter |
-
2011
- 2011-08-14 CN CN2011102313736A patent/CN102284722A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08336707A (en) * | 1995-06-12 | 1996-12-24 | Seiichi Kobayashi | Bolt hole periphery knurling tool |
| CN101091995A (en) * | 2006-06-23 | 2007-12-26 | 德州德隆(集团)机床有限责任公司 | Combined boring head for deep hole |
| CN200951469Y (en) * | 2006-10-19 | 2007-09-26 | 武裕 | Boring roller head |
| DE102007042960B3 (en) * | 2007-08-30 | 2008-08-28 | MAPAL Fabrik für Präzisionswerkzeuge Dr. Kress KG | Extending tool cutting internal spherical surfaces in differential gear casings, includes piston-cylinder unit operated from cooling lubricant supply |
| CN101628343A (en) * | 2009-07-29 | 2010-01-20 | 常州市西夏墅工具研究所有限公司 | Boring and rolling combined processing tool |
| CN202207812U (en) * | 2011-08-14 | 2012-05-02 | 无锡振华机械有限公司 | Boring cutter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047801A (en) * | 2018-09-30 | 2018-12-21 | 西安鑫旺矿业设备有限公司 | A kind of blind hole boring cutter component |
| CN109986383A (en) * | 2019-04-15 | 2019-07-09 | 太原科技大学 | A kind of automatic positioning locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |