CN103480873A - Satellite expansion type tool - Google Patents
Satellite expansion type tool Download PDFInfo
- Publication number
- CN103480873A CN103480873A CN201310452976.8A CN201310452976A CN103480873A CN 103480873 A CN103480873 A CN 103480873A CN 201310452976 A CN201310452976 A CN 201310452976A CN 103480873 A CN103480873 A CN 103480873A
- Authority
- CN
- China
- Prior art keywords
- tool
- boring bar
- workpiece
- bar
- ejector
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention discloses a satellite expansion type tool which comprises a boring bar. A draw bar is arranged in the boring bar, a plurality of oblique ejector blocks which are axially arranged are circumferentially uniformly distributed on the draw bar, ejector rods are radially arranged on the boring bar, each ejector rod is positioned at the corresponding oblique ejector block, the inner ends of the ejector rods are abutted onto the oblique ejector blocks, the outer ends of the ejector rods are abutted to tool bodies, the tool bodies are fixedly connected with the boring bar by fixing bolts, and openings are machined in the tool bodies. The satellite expansion type tool has the advantages that when a workpiece is bored and machined, the boring bar is positioned in a machined hole of the workpiece, and the draw bar is drawn via a spindle drawing mechanism, so that the oblique ejector blocks are outwardly abutted to the ejector rods, the tool bodies deform, in other words, a part of each tool body outwardly and eccentrically rotate owing to the opening of the tool body, tool noses outwardly extend to machine the workpiece, the multiple tool bodies simultaneously act circumferentially, and the work efficiency and the machining quality can be improved; after the workpiece is machined, the draw bar acts towards the opposite direction, the tool bodies return to original positions under the effect of internal stress after the tool bodies deform, in other words, the tool noses are retracted, and the purpose of tool retracting can be achieved.
Description
Technical field
The present invention relates to a kind of cutter, particularly a kind of satellite expansion boring workpiece cutter.
Background technology
The boring workpiece comprises boring bar with cutter, and cutter is installed on boring bar, during machined, boring bar is stretched in the hole of workpiece, utilizes the rotation of machine tool chief axis and feed motion to carry out boring processing to workpiece.Mounting cutter limited amount on boring bar, be not to be evenly distributed with a plurality of cutters on circumference at present, and the hardness ag(e)ing rate is low, and machining accuracy is also not ideal enough.
Summary of the invention
The present invention relates on a kind of boring bar the satellite expansion cutter that a plurality of cutters, raising working (machining) efficiency can along the circumferential direction be set, improve crudy, overcome the deficiencies in the prior art.
Satellite expansion cutter of the present invention, comprise boring bar, be provided with pull bar in boring bar, be distributed with the oblique jacking block of a plurality of axial settings along even circumferential on pull bar, be positioned at each oblique jacking block place and radially be provided with push rod on boring bar, the inner termination of push rod leans on oblique jacking block, and the external end head of push rod withstands on cutter hub, be fixedly connected with by set bolt between cutter hub and boring bar, be processed with opening on cutter hub.
The described push rod outside is set with top stem casing, and top stem casing fixedly is embedded in boring bar; Be provided with backing plate between described push rod and cutter hub, padding plate clip is provided with groove between cutter hub and boring bar and on backing plate.
Satellite expansion cutter of the present invention, boring adds man-hour, boring bar is positioned at the processed hole of workpiece, pull pull bar by the main shaft pulling mechanism, make oblique jacking block lean laterally push rod, cutter hub is deformed, owing to there being opening to exist, yaw motion laterally occurs in a cutter hub part, point of a knife is stretched out laterally, workpiece is processed, on circumferencial direction, a plurality of cutters move simultaneously, improved working (machining) efficiency, improved crudy, after completion of processing, pull bar moves round about, after the distortion of cutter hub self under the internal stress effect, return to home position, be that point of a knife is retracted, reach the purpose of withdrawing.When this cutter enters workpiece, integral diameter can diminish, and needs the inner hole of workpiece diameter of processing larger, can get around when cutter enters workpiece and interfere position, at working position, enlarges tool diameter, has facilitated cutter to enter inside workpiece.
The accompanying drawing explanation
Fig. 1 is the structural representation of the specific embodiment of the invention;
Fig. 2 is the B section enlarged diagram shown in Fig. 1;
Fig. 3 is the A-A section enlarged diagram shown in Fig. 1.
The specific embodiment
As shown in Figure 1, 2, 3: 2 is boring bar being connected with the main shaft of lathe, the 1st, and be positioned at the pull bar at boring bar 2 endoporus places and join with the pulling mechanism of machine tool chief axis inside.Be distributed with five oblique jacking blocks 3 of a plurality of axial settings along even circumferential on pull bar 1, oblique jacking block 3 outsides be inclined-plane and with pull bar 1 between be fixedly connected with.Be positioned at each oblique jacking block 3 place and radially process and use jogger hole on boring bar 2, top stem casing 14 is housed in this jogger hole, there is edge the termination of top stem casing 14 is fixedly connected with boring bar 2 by screw 13.Push rod 4 inserts in top stem casings 14, and the inner termination of push rod 4 leans on the inclined-plane of oblique jacking block 3, and the external end head of push rod 4 withstands on cutter hub 11, between cutter hub 11 and boring bar 2, by set bolt 7, is fixedly connected with, and is processed with opening 5 on cutter hub 11.Be provided with backing plate 8 between push rod 4 and cutter hub 11, backing plate 8 is clipped between cutter hub 11 and boring bar 2 and on backing plate 8 and is provided with groove 10.
Satellite expansion cutter of the present invention, boring adds man-hour, boring bar 2 is positioned at the processed hole of workpiece, pull pull bar 1 by the main shaft pulling mechanism, make oblique jacking block 3 lean laterally push rod 4, cutter hub 11 is deformed, owing to there being opening 5 to exist, yaw motion laterally occurs in cutter hub 11 parts, point of a knife 12 on cutter hub is stretched out laterally, workpiece is processed, on circumferencial direction, a plurality of cutters move simultaneously, improved working (machining) efficiency, improved crudy, after completion of processing, pull bar 1 moves round about, after cutter hub 11 self-deformations under the internal stress effect, return to home position, be that point of a knife 12 is retracted, reach the purpose of withdrawing.
Claims (2)
1. a satellite expansion cutter, comprise boring bar (2), be provided with pull bar (1) in boring bar (2), it is characterized in that: at the upper oblique jacking block (3) that is distributed with a plurality of axial settings along even circumferential of pull bar (1), be positioned at each oblique jacking block (3) and locate radially to be provided with push rod (4) on boring bar (2), the inner termination of push rod (4) leans on oblique jacking block (3), the external end head of push rod (4) withstands on cutter hub (11), between cutter hub (11) and boring bar (2), by set bolt (7), be fixedly connected with, be processed with opening (5) on cutter hub (11).
2. satellite expansion cutter according to claim 1 is characterized in that: described push rod (4) outside is set with top stem casing (14), and top stem casing (14) fixedly is embedded in boring bar (2); Be provided with backing plate (8) between described push rod (4) and cutter hub (11), what backing plate (8) was clipped in cutter hub and boring bar (2) is, and is provided with groove (10) on backing plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310452976.8A CN103480873A (en) | 2013-09-29 | 2013-09-29 | Satellite expansion type tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310452976.8A CN103480873A (en) | 2013-09-29 | 2013-09-29 | Satellite expansion type tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103480873A true CN103480873A (en) | 2014-01-01 |
Family
ID=49821656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310452976.8A Pending CN103480873A (en) | 2013-09-29 | 2013-09-29 | Satellite expansion type tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103480873A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030002938A1 (en) * | 1999-10-27 | 2003-01-02 | Wohlhaupter Gmbh | Tool holder |
| CN2892333Y (en) * | 2006-05-22 | 2007-04-25 | 孙浩 | Rotatable precision lathe tool |
| CN201338126Y (en) * | 2009-01-12 | 2009-11-04 | 广西玉柴机器股份有限公司 | Micro-adjustable milling cutter |
| CN102615300A (en) * | 2012-03-26 | 2012-08-01 | 华中科技大学 | Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter |
| CN203541571U (en) * | 2013-09-29 | 2014-04-16 | 大连机床(数控)股份有限公司 | Satellite unfolding cutter |
-
2013
- 2013-09-29 CN CN201310452976.8A patent/CN103480873A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030002938A1 (en) * | 1999-10-27 | 2003-01-02 | Wohlhaupter Gmbh | Tool holder |
| CN2892333Y (en) * | 2006-05-22 | 2007-04-25 | 孙浩 | Rotatable precision lathe tool |
| CN201338126Y (en) * | 2009-01-12 | 2009-11-04 | 广西玉柴机器股份有限公司 | Micro-adjustable milling cutter |
| CN102615300A (en) * | 2012-03-26 | 2012-08-01 | 华中科技大学 | Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter |
| CN203541571U (en) * | 2013-09-29 | 2014-04-16 | 大连机床(数控)股份有限公司 | Satellite unfolding cutter |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |