CN102909420B - Right-angle milling head device - Google Patents

Right-angle milling head device Download PDF

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Publication number
CN102909420B
CN102909420B CN201210390887.0A CN201210390887A CN102909420B CN 102909420 B CN102909420 B CN 102909420B CN 201210390887 A CN201210390887 A CN 201210390887A CN 102909420 B CN102909420 B CN 102909420B
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China
Prior art keywords
milling head
supporting
collar bush
base
cutter
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CN201210390887.0A
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Chinese (zh)
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CN102909420A (en
Inventor
王嵩
曾艳峰
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Yichang Marine Diesel Engine Co Ltd
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Yichang Marine Diesel Engine Co Ltd
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Priority to CN201210390887.0A priority Critical patent/CN102909420B/en
Publication of CN102909420A publication Critical patent/CN102909420A/en
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Abstract

A right-angle milling head device comprises a shell, and the right-angle milling head device is characterized in that a transmission mechanism is connected with a milling head main shaft sleeve so as to drive the milling head main shaft sleeve to rotate, two opposite sides of the milling head main shaft sleeve are respectively provided with a supporting base, and two ends of a tool are respectively connected with the milling head main shaft sleeve and the supporting bases. The supporting base is provided with a follow-up shaft sleeve which is supported by a bearing so as to rotate along the tool which is installed on the supporting base. Through the structure, i.e. the supporting bases, the stress situation of the tool is greatly improved, and technical problems in the prior art that the machining precision is reduced due to unreliability of the stress of a cantilever structure when a deep hole is machined can be solved. The tool is strained in two directions, so that the rigidness is improved, and the deep hole machining precision is further guaranteed. The supporting base can be adjusted in a sliding way along the axis of the tool so as to be adjusted according to the depth of a machined hole. Due to adopting the right-angle milling head device, mechanical machining of a high-precision specially-shaped deep hole and especially of a non-circular hole such as a square hole and a triangular hole can be realized, and the technical bottleneck for mechanically machining the specially-shaped hole can be broken through.

Description

Right-angle milling head device
Technical field
The present invention relates to a kind of Milling Process field, particularly a kind of such as, for processing profiled deep hole, square opening, tri-angle-holed right-angle milling head device.
Background technology
In machine-building, processing profiled deep hole (non-circular hole, limit and limit angle are non-wedge angle) as: being greater than the square opening of 50mm, tri-angle-holed (root fillet is greater than R8), is a process difficulties in machining, can only be solved at present by broaching or electric machining two kinds of techniques.For large-scale can soldering part, can by the process of welding again and connecing that is first shaped in the less demanding situation of Product Precision, this method solder yield is low, and because of can not heat treatment after weld parts, destroys the stability of whole element precision.For high-accuracy shaped hole and the part that can not weld, also do not adopt the maturation process method of Milling Process at present.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of right-angle milling head device, can the special-shape deep-hole of machining high-precision.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of right-angle milling head device, comprise housing, transmission mechanism is connected with milling head collar bush, rotate to drive milling head collar bush, be provided with base for supporting at milling head collar bush opposite side, the two ends of cutter are connected with milling head collar bush and base for supporting respectively.
Described base for supporting is provided with the servo-actuated axle sleeve supported by bearing, to rotate with cutter mounted thereto.
The axis of described servo-actuated axle sleeve and the dead in line of milling head collar bush.
Described base for supporting is slidably mounted on housing.
Cutter one end is hung tight by milling head collar bush afterbody blind rivet, and the cutter other end adopts screw tension by base for supporting lower end.
Described cutter is connected with milling head collar bush and base for supporting in the mode strained from two ends.Described housing is provided with guide rail along the direction of milling head collar bush, and base for supporting is slidably mounted on guide rail.
The land length of described cutter is greater than the thickness at position to be processed.
In described transmission mechanism, be connected by spline for the power sub be connected with milling machine spindle with bevel gear set, bevel gear set is connected with a joggle by idler gear and travelling gear, and travelling gear is connected with milling head collar bush key.
In described bevel gear set, the other end of the first bevel gear is provided with and forms with power sub the spline coordinated, and the other end of the second bevel gear is provided with the first gear with idler gear engagement fit.
Described servo-actuated axle sleeve two ends adopt thrust bearing supporting, and at least one end of servo-actuated axle sleeve is connected with end cap by end face.
A kind of right-angle milling head device provided by the invention, by adopting above-mentioned structure, the base for supporting namely arranged, greatly improve the stressing conditions of cutter, solve in prior art, when deep hole processing, due to the stressed unreliable and technical problem making machining accuracy reduce of cantilever design.The two-way tension of cutter enhances rigidity, further ensures deep hole machining precision.Base for supporting along tool axis slidable adjustment, thus can regulate according to the degree of depth of machining hole.Present invention achieves high-accuracy shaped deep hole, especially non-circular hole as: square opening, tri-angle-holed machining, breaches irregularly-shaped hole process for machining bottleneck.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is overall structure cross-sectional schematic of the present invention.
In figure: housing 1, power sub 2, bevel gear set 3, milling head collar bush 4, base for supporting 5, guide rail 6, workpiece 7, cutter 8, spline 9, servo-actuated axle sleeve 10, travelling gear 11, idler gear 12, the first gear 13, second bevel gear 14, first bevel gear 15.
Detailed description of the invention
As in Fig. 1, a kind of right-angle milling head device, comprises housing 1, transmission mechanism is connected with milling head collar bush 4, to drive milling head collar bush 4 to rotate, be provided with base for supporting 5 at milling head collar bush 4 opposite side, the two ends of cutter 8 are connected with milling head collar bush 4 and base for supporting 5 respectively.
Described base for supporting 5 is provided with the servo-actuated axle sleeve 10 supported by bearing, to rotate with cutter 8 mounted thereto.
In the scheme optimized, the axis of described servo-actuated axle sleeve 10 and the dead in line of milling head collar bush 4.Described base for supporting 5 is slidably mounted on housing 1.Further optimization, described housing 1 is provided with guide rail 6 along the direction of milling head collar bush 4, and base for supporting 5 is slidably mounted on guide rail 6.
Described cutter 8 is connected with milling head collar bush 4 and base for supporting 5 in the mode strained from two ends.Structure thus, improves the rigidity of cutter 8, thus improves machining accuracy.For matching with this connected mode, described servo-actuated axle sleeve 10 two ends adopt thrust bearing supporting, and at least one end of servo-actuated axle sleeve 10 is connected with end cap by end face.Structure is to be suitable for the connected mode of cutter 8 two ends tension thus.
The land length of described cutter 8 is greater than the thickness at position to be processed.Structure thus, time processing can go out a face.And do not need whole device to move back and forth, further increase machining accuracy.
In described transmission mechanism, be connected by spline for the power sub 2 be connected with milling machine spindle with bevel gear set 3, bevel gear set 3 is connected with a joggle by idler gear 12 and travelling gear 11, and travelling gear 11 is connected with milling head collar bush 4 key.
In described bevel gear set 3, the other end of the first bevel gear 15 is provided with the other end forming spline 9, second bevel gear 14 coordinated with power sub 2 and is provided with the first gear 13 with idler gear 12 engagement fit.
As shown in Figure 1: housing 1, as the basis of installing each drive disk assembly and milling head collar bush, adopts screw to be connected with lathe.Power sub 2 is arranged in tapered bore of machine tool spindle, transfers a torque to bevel gear set 3 by spline, and bevel gear set 3 transfers torque to milling head collar bush 4 by idler gear 12, thus carry its tools 8 rotates.
Base for supporting 5 slides up and down suitable distance along guide rail 6, with screw tight, so that the irregularly-shaped hole of processing different depth.Milling head collar bush 4 mounting cutter 8, especially cutter 8, except being hung tight by milling head collar bush 4 afterbody blind rivet, can also be adopted screw to strain from the negative by base for supporting 5, enhance cutter rigidity and ensure that machining accuracy.Base for supporting 5 is provided with thrust bearing and needle bearing.Cutter 8 afterbody optimized can by spacer shell holder in base for supporting 5.
During use, first install power sub 2 in machine tool chief axis, adjustment is extended, and whole device is installed on lathe.Install special mandrel in milling head main shaft, adjustment base for supporting 5 adapts with cutter, compact schemes base 5 after correcting.Part between milling head collar bush 4 and base for supporting 5 is stretched into by processing parts, through base for supporting 5 with part mounting cutter 8 in milling head collar bush 4.Hang tight cutter from milling head collar bush 4, from base for supporting 5 lower end tension cutter, lathe carry its tools rotates and feeding can process the part meeting designing requirement.

Claims (6)

1. a right-angle milling head device, comprise housing (1), it is characterized in that: transmission mechanism is connected with milling head collar bush (4), rotate to drive milling head collar bush (4), be provided with base for supporting (5) at milling head collar bush (4) opposite side, the two ends of cutter (8) are connected with milling head collar bush (4) and base for supporting (5) respectively;
Described base for supporting (5) is provided with the servo-actuated axle sleeve (10) supported by bearing, to rotate with cutter (8) mounted thereto;
The axis of described servo-actuated axle sleeve (10) and the dead in line of milling head collar bush (4);
Described base for supporting (5) is slidably mounted on housing (1);
Cutter (8) one end is hung tight by milling head collar bush (4) afterbody blind rivet, and cutter (8) other end adopts screw tension by base for supporting (5) lower end.
2. a kind of right-angle milling head device according to claim 1, is characterized in that: described housing (1) is provided with guide rail (6) along the direction of milling head collar bush (4), and base for supporting (5) is slidably mounted on guide rail (6).
3. a kind of right-angle milling head device according to claim 1, is characterized in that: the land length of described cutter (8) is greater than the thickness at position to be processed.
4. a kind of right-angle milling head device according to claim 1, it is characterized in that: in described transmission mechanism, power sub (2) for being connected with milling machine spindle is connected with bevel gear set (3) by spline, bevel gear set (3) is connected with a joggle by idler gear (12) and travelling gear (11), and travelling gear (11) is connected with milling head collar bush (4) key.
5. a kind of right-angle milling head device according to claim 4, it is characterized in that: in described bevel gear set (3), the other end of the first bevel gear (15) is provided with the spline (9) being formed with power sub (2) and coordinate, and the other end of the second bevel gear (14) is provided with the first gear (13) with idler gear (12) engagement fit.
6. a kind of right-angle milling head device according to claim 1, is characterized in that: described servo-actuated axle sleeve (10) two ends adopt thrust bearing supporting, and at least one end of servo-actuated axle sleeve (10) is connected with end cap by end face.
CN201210390887.0A 2012-10-16 2012-10-16 Right-angle milling head device Active CN102909420B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210390887.0A CN102909420B (en) 2012-10-16 2012-10-16 Right-angle milling head device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210390887.0A CN102909420B (en) 2012-10-16 2012-10-16 Right-angle milling head device

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CN102909420A CN102909420A (en) 2013-02-06
CN102909420B true CN102909420B (en) 2015-04-22

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329451A (en) * 2013-12-26 2015-02-04 柳州正菱重型数控机床有限公司 Spiral bevel gear gap adjustment device for universal milling head
CN105522403A (en) * 2016-01-13 2016-04-27 一重集团绍兴重型机床有限公司 Boring tool holder of combined machining machine special for drum shafts
CN105522186A (en) * 2016-01-13 2016-04-27 一重集团绍兴重型机床有限公司 Combined machining machine special for drum shaft
CN105522388A (en) * 2016-01-13 2016-04-27 一重集团绍兴重型机床有限公司 Milling cutter rest of combined machining machine special for drum shaft

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055313A (en) * 1991-02-21 1991-10-16 陈礼 Multifunctional matching machine tool and cutting process thereof
CN202447744U (en) * 2011-11-30 2012-09-26 天津重钢机械装备股份有限公司 Fitting for machining square hole on boring mill

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JPS54145087A (en) * 1978-05-04 1979-11-12 Hitachi Ltd Method of processing square hole on furnace-center supporting plate
RO90868B1 (en) * 1984-12-19 1987-01-31 îNTREPRINDEREA "METALURGICA" Device for machining polygon-shaped holes
CN2858151Y (en) * 2006-02-14 2007-01-17 刘长春 Vertical milling head
LU91336A2 (en) * 2007-05-07 2008-11-10 Wurth Paul Sa Providing deep-holes with an oblong cross-section and corresponding tools
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CN102001012A (en) * 2010-10-14 2011-04-06 莱芜市数控机床研究所 Universal angle milling head for boring and milling numerical control machine tool
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CN202861496U (en) * 2012-10-16 2013-04-10 宜昌船舶柴油机有限公司 Right-angle milling head device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055313A (en) * 1991-02-21 1991-10-16 陈礼 Multifunctional matching machine tool and cutting process thereof
CN202447744U (en) * 2011-11-30 2012-09-26 天津重钢机械装备股份有限公司 Fitting for machining square hole on boring mill

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