CN100443254C - Six-rod whole hinge single-row drive type double pendulum angle milling head - Google Patents

Six-rod whole hinge single-row drive type double pendulum angle milling head Download PDF

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Publication number
CN100443254C
CN100443254C CNB2007100372926A CN200710037292A CN100443254C CN 100443254 C CN100443254 C CN 100443254C CN B2007100372926 A CNB2007100372926 A CN B2007100372926A CN 200710037292 A CN200710037292 A CN 200710037292A CN 100443254 C CN100443254 C CN 100443254C
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China
Prior art keywords
pair
milling head
side link
connecting rod
main shaft
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Expired - Fee Related
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CNB2007100372926A
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Chinese (zh)
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CN101011799A (en
Inventor
高峰
张青
张勇
郭为忠
赵现朝
刘仁强
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Publication of CN100443254C publication Critical patent/CN100443254C/en
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Abstract

The invention relates to a single bolt driving dual oscillating milling head. The No.1 controllable generator fixed with No.1 cylinder gear through No.1 coupler, No.2 cylinder gear fixed with the cover of the milling head cover, whose top cover and a pair of milling sleeve side cover fixed with the milling head sleeve, No.2 controllable generator installed on the bracket that fastened inside the milling head sleeve. Three pairs of linking brackets and two pairs of linkages set symmetrically at both sides of the electric main shaft of the milling head. The drive shaft fixes with the second controllable generator through the second coupler and fixed with the first pair of linking bracket. The first pair of linkage and the first pair of linking bracket or the second pair of linking bracket, the second pair of linkage and the second pair of linking bracket or the second pair of linkage and the third pair of linking bracket to form into rotating assistance respectively. The second and the third linking bracket connect to the milling head sleeve respectively, with the third linking bracket fixed with the main shaft of the milling head. It solves the issue of big size, low rigidity and poor bearing ability of the dual oscillating milling head.

Description

The six-rod whole hinge single-row drive type double pendulum angle milling head
Technical field
The present invention relates to the milling head in a kind of machine tool technology field, specifically is a kind of six-rod whole hinge single-row drive type double pendulum angle milling head, is applicable to heavy multi-axis numerical control high-precision high-speed lathe.
Background technology
Double-pendulum milling head is the core component of multiaxis control, 5-shaft linkage numerical control lathe, main big heavy type numerical control of service and conventional milling boring class lathe, main frame is by being equipped with this type of numerical control milling head, the control diaxon rotates realizes that five-axle linkage comes the processed complex three-dimension curved surface, enlarge the range of work and the function of use of main frame, enhance productivity greatly and help guaranteeing machining accuracy.Because of its superiority, the ratio that is equipped with when not only the user orders main frame is improving, and the quantity that many customer requirements that has used main frame are equipped with again also obviously increases.The double pendulum numerical control milling head belongs to the high-tech matching component, the characteristics that the content that possesses skills is high.For a long time, China does not possess the ability that manufactures and designs this base part, caused the high-precision high-speed multi-axis linkage numerical control lathe manufacture level of China lower, its consequence is a lot of complex parts and even equipment dependence on import, and some country also imposes embargo to some key equipment, had a strong impact on industrial expansion, the one cover double-pendulum milling head of import now is up to millions of.
At present, domestic in design with make and also to be in the starting stage aspect the double-pendulum milling head be used for high-precision high-speed multi-axis linkage numerical control lathe, also there is not relevant document record, only there is several family main frame factory carrying out the trial-production of exploration for trial-production 5-shaft linkage numerical control lathe, but owing to lack fully checking aspect key technology, aspects such as its reliability, quality, precision all are difficult to compare favourably with external product.In addition, the double-pendulum milling head that is used for the high accuracy 5-axis machining center needs to realize functions such as main shaft gyration, swing simultaneously, double-pendulum milling head mainly adopts the contour auxiliary driving of roller bearing, gear and worm and gear at present, though can reach certain motion and required precision, but because the limitation of higher pair transmission agency, have shortcomings such as volume is big, rigidity is low, bearing capacity is low, cause existing unavoidably shortcomings such as bearing capacity is low, volume is big, rigidity is low.
Find through literature search prior art, application number be 00211008.3 Chinese utility model patent disclose belong to the machine tool technology field a kind of screw rod Digit Control Machine Tool with turning round milling head, comprise revolving bed, revolution casing, disc milling cutter, motor, belt, T type bolt, belt pulley etc., wherein turn round box body device in revolving bed, be slidingly matched with the arc track of revolving bed, the revolution casing is done in revolving bed ± 90 ° sliding transfer, make disc milling cutter have ± 90 ° machining state, be applicable to milling bull complicated abnormal shape screw rod.This patent milling head can only realize the sliding transfer of 90 ° of scopes of one degree of freedom, can not realize the swing of big pivot angle two-freedom, have above-mentioned defective equally.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of six-rod whole hinge single-row drive type double pendulum angle milling head is provided, make it satisfy the job requirement of double-pendulum milling head by the novel mechanism configuration that adopts the low auxiliary driving of enclosed, this configuration has the characteristic of top load, high rigidity, big corner, corner around two axles can reach respectively ± and 180 ° and greater than ± 90 °, meet or exceed international like product standard, can solve problems such as present double-pendulum milling head is big owing to the volume that high auxiliary driving exists, rigidity is low, bearing capacity is low.
The present invention is achieved by the following technical solutions, and six-rod whole hinge single-row drive type double pendulum angle milling head of the present invention comprises: two controllable motors, two shaft couplings, a pair of roller gear, milling head cover upper cover plate, milling head cover, power transmission shaft, support, first pair of side link, second pair of side link, the 3rd pair of side link, first pair of connecting rod, second pair of connecting rod, milling head electricity main shaft and a pair of milling heads overlap side cover plate.
Wherein, first controllable motor is fixedlyed connected with first roller gear by first shaft coupling, and second roller gear is fixedlyed connected with milling head cover upper cover plate, and milling head cover upper cover plate is all fixedlyed connected with the milling head cover with a pair of milling head cover side cover plate, is used for installing.Second controllable motor is installed on the support, and support is fixed in the milling head cover.The first pair of side link, the second pair of side link, the 3rd pair of side link, first pair and the second pair of connecting rod all are symmetrically arranged in the both sides of milling head electricity main shaft.Power transmission shaft is fixedlyed connected with the axle of second controllable motor by second shaft coupling, fixedlys connected with first pair of side link again simultaneously.One end of first pair of connecting rod constitutes revolute pair with first pair of side link respectively, and the other end constitutes revolute pair with second pair of side link respectively.One end of second pair of connecting rod constitutes revolute pair with second pair of side link respectively, and the other end constitutes revolute pair with the 3rd pair of side link respectively.Second pair and the 3rd pair of side link all are connected in milling head by revolute pair and put, and wherein the 3rd pair of side link fixedlyed connected with milling head electricity main shaft.
In the use, the controllable motor that links to each other with first roller gear drives the milling head cover by gear drive and all members of being mounted thereon comprise the axis swing of milling head electricity main shaft integral body along the second roller gear axle, realize the swing of the one degree of freedom of milling head, its pivot angle can reach ± and 180 °.Second controllable motor drives first pair of side link motion by second shaft coupling and power transmission shaft, drive the relative milling head cover of the fixed hinge axis swing of the 3rd pair of side link and milling head electricity main shaft by first pair of connecting rod, the second pair of side link and second pair of connecting rod respectively again along the 3rd pair of side link, thereby realize the swing of another free degree of milling head, its pivot angle can be greater than ± 90 °.
The present invention utilizes two controllable motors as motion and power input by symmetrical two cover enclosed lower pair six-bar mechanisms, drives the swing that milling head is realized two-freedom.Mechanism configuration proposed by the invention has the characteristic of top load, high rigidity, big corner.Corner around two axles can reach respectively ± and 180 ° and greater than ± 90 °, meet or exceed international like product standard, can solve present double-pendulum milling head because problem such as the volume that high auxiliary driving exists is big, rigidity is low, bearing capacity is low.Applicable to heavy five-shaft numerical control high-precision high-speed lathe, to satisfy the processing request of parts such as large-scale generating equipment, nuclear-plant, forging equipment, but and modularized design simple in structure, easy to manufacture, guarantee the motion of mechanism scope simultaneously, accuracy guarantee can and be demarcated by size design and be guaranteed.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure: 1 is first controllable motor, and 2 is first shaft coupling, and 3 is first roller gear, 4 is second roller gear, and 5 are milling head cover upper cover plate, and 6 is first pair of side link, milling head cover 7,8 is a power transmission shaft, and 9 is support, 10 is second controllable motor, and 11 is second shaft coupling, and 12 is first pair of connecting rod, 13 is second pair of side link, and 14 is second pair of connecting rod, and 15 is the 3rd pair of side link, 16 is milling head electricity main shaft, and 17 is a pair of milling head cover side cover plate.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment has provided detailed embodiment and process being to implement under the prerequisite with the technical solution of the present invention, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: first controllable motor, 1, the first shaft coupling 2, first roller gear, 3, the second roller gears 4, milling head cover upper cover plate 5, first pair of side link 6, milling head cover 7, power transmission shaft 8, support 9, the second controllable motors 10, the second shaft couplings 11,13, the second pairs of connecting rods 14 of 12, the second pairs of side links of first pair of connecting rod, the 3rd pair of side link 15, milling head electricity main shaft 16 and a pair of milling head cover side cover plate 17.
Wherein, first controllable motor 1 is fixedlyed connected with first roller gear 3 by first shaft coupling 2, and second roller gear 4 is fixedlyed connected with milling head cover upper cover plate 5, and milling head cover upper cover plate 5 and a pair of milling head overlap side cover plate 17 and all overlap 7 with milling head and fixedly connected, and are used for installation.Second controllable motor 10 is installed on the support 9, and support 9 is fixed in the milling head cover 7.The first pair of side link 6, the first pair of connecting rod 12, the second pair of side link 13, the second pair of connecting rod 14 and the 3rd pair of side link 15 all are symmetrically arranged in the both sides of milling head electricity main shaft 16.Power transmission shaft 8 is fixedlyed connected with the axle of second controllable motor 10 by second shaft coupling 11, fixedlys connected with first pair of side link 6 again simultaneously.One end of first pair of connecting rod 12 constitutes revolute pair with first pair of side link 6 respectively, and the other end constitutes revolute pair with second pair of side link 13 respectively.One end of second pair of connecting rod 14 constitutes revolute pair with second pair of side link 13 respectively, and the other end constitutes revolute pair with the 3rd pair of side link 15 respectively.Second pair of side link 13 and the 3rd pair of side link 15 all are connected on the milling head cover 7 by revolute pair, and wherein the 3rd pair of side link 15 fixedlyed connected with milling head electricity main shaft 16.
In the use, first controllable motor 1 of fixedlying connected with first roller gear 3 drives milling head cover 7 by gear drive and all members of being mounted thereon comprise the axis swing of milling head electricity main shaft 16 integral body along second roller gear 4, realize the swing of the one degree of freedom of milling head, its pivot angle can reach ± and 180 °.Second controllable motor 10 drives 6 motions of first pair of side link by second shaft coupling 11 and power transmission shaft 8, drive relative milling head cover 7 swings of fixed hinge axis of the 3rd pair of side link 15 and milling head electricity main shaft 16 respectively by first pair of connecting rod 12, the second pair of side link 13 and second pair of connecting rod 14 again along the 3rd pair of side link 15, thereby realize the swing of another free degree of milling head, its pivot angle can be greater than ± 90 °.

Claims (5)

1, a kind of six-rod whole hinge single-row drive type double pendulum angle milling head, comprise: first controllable motor, first shaft coupling, first roller gear, second roller gear, second controllable motor, second shaft coupling, milling head electricity main shaft, it is characterized in that, also comprise: milling head cover upper cover plate, first pair of side link, second pair of side link, the 3rd pair of side link, first pair of connecting rod, second pair of connecting rod, milling head cover, power transmission shaft, support and a pair of milling head cover side cover plate; First controllable motor is fixedlyed connected with first roller gear by first shaft coupling, second roller gear is fixedlyed connected with milling head cover upper cover plate, and milling head cover upper cover plate is all fixedlyed connected with the milling head cover with a pair of milling head cover side cover plate, second controllable motor is arranged on the support, and support is fixed in the milling head cover; First pair of side link, second pair of side link, the 3rd pair of side link, first pair of connecting rod, second pair of connecting rod all is symmetrically arranged in the both sides of milling head electricity main shaft, power transmission shaft is fixedlyed connected with the axle of second controllable motor by second shaft coupling, fixedly connected with first pair of side link again simultaneously, one end of first pair of connecting rod constitutes revolute pair with first pair of side link respectively, the other end constitutes revolute pair with second pair of side link respectively, one end of second pair of connecting rod constitutes revolute pair with second pair of side link respectively, the other end constitutes revolute pair with the 3rd pair of side link respectively, second pair and the 3rd pair of side link all are connected in milling head by revolute pair and put, and wherein the 3rd pair of side link fixedlyed connected with milling head electricity main shaft.
2, six-rod whole hinge single-row drive type double pendulum angle milling head according to claim 1, it is characterized in that, described first controllable motor, by gear drive drive the milling head cover and on all members, comprise milling head electricity main shaft, whole along the swing of the second roller gear axis, realize the swing of the one degree of freedom of milling head.
3, six-rod whole hinge single-row drive type double pendulum angle milling head according to claim 2 is characterized in that, described milling head electricity main shaft is ± 180 ° along the pendulum angle scope of the second roller gear axis.
4, six-rod whole hinge single-row drive type double pendulum angle milling head according to claim 1, it is characterized in that, described second controllable motor drives first pair of side link motion by second shaft coupling and power transmission shaft, drive the relative milling head cover of the fixed hinge axis swing of the 3rd pair of side link and milling head electricity main shaft by first pair of connecting rod, the second pair of side link and second pair of connecting rod again, thereby realize the swing of milling head along the free degree of the fixed hinge axis of the 3rd pair of side link along the 3rd pair of side link.
5, six-rod whole hinge single-row drive type double pendulum angle milling head according to claim 4 is characterized in that, described milling head electricity main shaft along the pendulum angle scope of the fixed hinge axis of the 3rd pair of side link greater than ± 90 °.
CNB2007100372926A 2007-02-08 2007-02-08 Six-rod whole hinge single-row drive type double pendulum angle milling head Expired - Fee Related CN100443254C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116765484B (en) * 2023-08-25 2023-11-17 昆山市华奎机械电子有限公司 Pneumatic tool ironwork processing equipment

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CN1500590A (en) * 2002-11-04 2004-06-02 �¿˶�������շ������������ι�˾ Working unit for programme-controlled milling and boring machines
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CN1268419A (en) * 2000-01-05 2000-10-04 东北大学 Two parallel-rods virtual shaft multifunctional machine tool
CN1406710A (en) * 2001-08-27 2003-04-02 德克尔·马霍普夫龙滕有限责任公司 Universal assembled drill milling machine
CN1500590A (en) * 2002-11-04 2004-06-02 �¿˶�������շ������������ι�˾ Working unit for programme-controlled milling and boring machines
CN2644086Y (en) * 2003-08-27 2004-09-29 江苏多棱数控机床股份有限公司 Spindle head with double swing angle built-in electric spindle
CN1559753A (en) * 2004-03-01 2005-01-05 西安理工大学 Three-axle parallel mainshaft head structure for implemonting multidirection verticel-horizontal processing
CN2850806Y (en) * 2005-05-24 2006-12-27 桂林机床股份有限公司 Oscillating type AC axle linked milling head
CN2827621Y (en) * 2005-07-27 2006-10-18 桂林机床股份有限公司 Main transmission drive type AC axle automatic index cutter head
CN1788929A (en) * 2005-12-20 2006-06-21 哈尔滨工业大学 Five axis linkage parallel-tandem digital control machine tool

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新型可重组模块化并联微动机器人研究. 周红秀,高峰,张振宇.纳米技术与精密工程,第3卷第3期. 2005
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