CN103786028A - Movable gantry type multi-spindle numerical-control drilling and milling center - Google Patents

Movable gantry type multi-spindle numerical-control drilling and milling center Download PDF

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Publication number
CN103786028A
CN103786028A CN201210433064.1A CN201210433064A CN103786028A CN 103786028 A CN103786028 A CN 103786028A CN 201210433064 A CN201210433064 A CN 201210433064A CN 103786028 A CN103786028 A CN 103786028A
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China
Prior art keywords
slide unit
center
type
zuan
slide
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CN201210433064.1A
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Chinese (zh)
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林志贺
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林志贺
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Priority to CN201210433064.1A priority Critical patent/CN103786028A/en
Publication of CN103786028A publication Critical patent/CN103786028A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/012Portals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02Indexing equipment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q37/00Metal-working machines, or constructional combinations thereof, built-up from units designed so that at least some of the units can form parts of different machines or combinations; Units therefor in so far as the feature of interchangeability is important
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/36Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission in which a servomotor forms an essential element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
    • B23Q5/402Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw in which screw or nut can both be driven

Abstract

The invention provides a movable gantry type multi-spindle numerical-control drilling and milling center. A numerical-control drilling and milling center main body is a movable beam type gantry drilling and milling center frame. The moveable gantry type multi-spindle numerical-control drilling and milling center is characterized in that a workpiece mounting table is directly arranged on a base; a horizontal type tool magazine is arranged at the other end of the workpiece mounting table in a travel of a movable gantry frame; three or more spindle units with automatic tool changing mechanisms are arranged on a sliding plate of a Y-direction sliding table or a Z-direction sliding table; and the movable gantry frame, the Y-direction sliding table and the Z-direction sliding table are driven in a numerical-control servo manner. According to the movable gantry type multi-spindle numerical-control drilling and milling center, a plurality of spindles can be used for machining simultaneously, automatic tool changing can be performed synchronously, handling time is short, and production efficiency is high. The movable gantry type multi-spindle numerical-control drilling and milling center is widely applicable to mechanically cutting medium or small parts.

Description

Many main spindle numerical controls of moving gantry type Zuan Xi center
Technical field
The present invention relates to a kind of machining equipment, especially a kind of multiway type machining center.
Technical background
Current machining center is on the market substantially all single main axle structure, and it is for the processing in enormous quantities of finding in some, and efficiency is relatively low, because only one cutter is participated in to processing in the same time.But building-block machine, although can participate in cutting by many main shafts simultaneously, raises the efficiency, its versatility is poor, and adjusts and bother with safeguarding also.Chinese patent discloses a kind of gantry Multishaft processing center (patent No.: 201120550910.9), though it has adopted many main axle structures, its cutter can not be changed automatically, thereby has retrained productivity.Also have on the market at present some gantry machining centers to adopt two main axle structures, but it can not carry out two spindle synchronous tool changing, thereby affect working (machining) efficiency.
Summary of the invention
The object of this invention is to provide one can automatic many spindle synchronous tool changing, the much higher Spindle Machining Center of working (machining) efficiency.
In order to reach above-mentioned goal of the invention, the technical solution adopted in the present invention is: this numerical control drilling-milling central body adopts movable beam type gantry machining center framework, and it is mainly by base, mobile gantry frame, workpiece erecting bed, Y-direction slide unit, Z-direction slide unit, main axle unit, composition of the control system; It is characterized in that: workpiece erecting bed is directly installed on base; At the other end of workpiece erecting bed, and in the stroke of mobile gantry frame, flat placed type tool magazine is installed; Three or three main axle units that are provided with above automatic tool changer are installed on the slide plate of Y-direction or Z-direction slide unit; Its mobile gantry frame, Y-direction slide unit, Z-direction slide unit adopt numerical control servo to drive.
Above-mentioned flat placed type tool magazine refers to the magazine tool structure that the axle center of the cutter placement in tool magazine parallels with the axle center of main shaft.
As the further improvement of technique scheme, described workpiece erecting bed adopts circular index workbench, and this circular index workbench is two decile circular index workbench preferably; This structure can effectively solve in part machined in enormous quantities, and the handling of part affect the problem of total working (machining) efficiency, thereby significantly enhance productivity.
As the further improvement of technique scheme, between the slide plate of the slide plate of described Z-direction slide unit and Y-direction slide unit, vertical compensating cylinder is installed, thus the smoothness while improving the feeding of Z-direction slide unit; Reduce screw mandrel and the motor vertical gravity because of main shaft and slide unit plate, and the load increasing.
As the further improvement of technique scheme, described X can be according to one or more revolution working shafts of condition of work increase in demand, to increase processing work face to slide unit.
The invention has the beneficial effects as follows: 1. adopt after many main axle structures, in processing, have much knives tool to participate in processing simultaneously, significantly improved production efficiency.2. because the tool magazine of automatic tool changer adopts flat placed type tool magazine, thereby just can carry out easily the tool changing simultaneously of many main shafts, thus minimizing tool change time.3. tool magazine is arranged on the other end of circular index workbench, and in the stroke of mobile gantry frame, can make full use of the accurate positioning function of Y, Z axis, carries out reliable flat placed type automatic tool changer with mobile gantry frame composition three dimension system.4. because workpiece erecting bed adopts circular index workbench, and adopt travelling gantry shelf structure, so just circular index workbench can be divided into two table tops and apply, the first half is first for workpiece loading and unloading, and later half is used for the processing of workpiece and carries out; After the workpiece on later half workbench processes, the workpiece of second half workbench loads and unloads already, thereby system can be carried out rotary table automatically, has reduced thus the lay day of workpiece.
Accompanying drawing explanation
Fig. 1 is the agent structure schematic diagram of first embodiment of the invention; Wherein: 1 is base, 2 is circular index workbench, and 3 is mobile gantry frame, and 4 is Y-direction slide unit, 5 is Z-direction slide unit, and 6 is main axle unit, and 7 is rolling lead screw, and 8 is No. 2 rolling lead screws, 9 is No. 2 servomotors, and 10 is No. 3 rolling lead screws, and 11 is No. 3 servomotors, and 12 is nitrogen balance cylinder.
Fig. 2 is the side structure schematic diagram of Fig. 1; Wherein 13 is lucite baffle plate, and 14 is flat placed type direct-row tool magazine, and 15 is spindle motor.
Fig. 3 is the workpiece front view of the embodiment of the present invention.
Fig. 4 is the straight-line horizontal tool magazine schematic diagram of the embodiment of the present invention.
The agent structure schematic diagram of Fig. 5 second embodiment of the invention; Wherein: 16 is A slide unit, 17 is B slide unit, and 18 is C slide unit, and 19 is D slide unit, and 20 is E slide unit, and 21 is main axle unit.
The agent structure schematic diagram of Fig. 6 third embodiment of the invention; Wherein: 22 is mobile gantry frame, 23 is servomotor, and 24 is rolling lead screw, and 25 is Y-direction slide unit, and 26 is main axle unit, and 27 is horizontal straight-line tool magazine, and 28 is rolling guide, and 30 is Z-direction slide unit.
Fig. 7 is the side structure schematic diagram of Fig. 6; Wherein 29 is rod-free cylinder.
The specific embodiment
With reference to workpiece shown in Fig. 3, it need to process 6 tooth holes, 6 counterbores, 2 locating holes, and same structure product also has minimum 5 kinds of specifications in addition, and their structures are all this class flange-types, just in size, have several millimeters make a return journey, its every kind the specification moon demand all in 5,000 left and right.Because pitch of holes is smaller, multi-shaft device is once difficult to use, and the spacing of two dowel hole requires in positive and negative 0.03 millimeter, is also difficult to assurance by multi-shaft device precision; If with the special plane combining, it is minimum wants 7 multi-shaft devices just to combine the processing in each hole, and precision does not also ensure; Its kind is many again in addition, but the quantity of single variety is few again, and every kind of the word of exploitation special plane all need one, and equipment cost is just very high; And the size of this series products and morpheme all likely change every year, thereby relatively do not ensure very much with special plane; Though be guaranteed by traditional single shaft machining center machining accuracy, efficiency is very low again.But 14 Spindle Machining Centers in embodiment mono-in employing the present invention, it just can effectively solve the processing problems of such part.
embodiment 1:shown in Fig. 1,2, this machining center of the present embodiment adopts the framework of mobile gantry; Its X to adopt that two numerical control servomotors form with rolling lead screw 7 transmission mechanism synchronize and promote accurately moving back and forth of mobile gantry frame 3.Its 9 and No. 2 rolling lead screws of No. 2 servomotors of Y-direction slide unit 4 use 8 that are arranged on mobile gantry frame 3 drive it accurately to move back and forth.Z-direction slide unit 5 is arranged on Y-direction slide unit 4, its Z-direction slide unit 5 adopts two No. 3 servomotors 11 and two No. 3 rolling lead screws 10 to promote one 14 slide unit plates with the BT30 machining center main axle unit 6 of automatic tool changer is installed, and 14 main axle units 6 adopt a word equidistantly to arrange; Between the slide unit plate of Z-direction slide unit 5 and the slide unit plate of Y-direction slide unit 4, two nitrogen balance cylinders 12 have been installed, the pulling force of this nitrogen balance cylinder 12 just equals the whole vertical gravity summations that load on Z-direction slide unit 5 slide plates.Workpiece erecting bed adopts two decile hydraulic gyration index tables 2, has filled a poly (methyl methacrylate) plate 13 in the centre of panoramic table, for keeping off iron filings and the cooling fluid of processing; A flat placed type direct-row tool magazine 14 is equipped with at circular index workbench 2 rears.
When work, first on the first half of circular index workbench 2, install workpiece, after start key, 2 transpositions of circular index workbench; Can carry out workpiece loading and unloading to second half of circular index workbench 2 with that, meanwhile system automatically and mobile gantry frame 3, Y-direction slide unit 4, Z-direction slide unit 5 form three dimension system, carry out converted products; In the time wanting tool changing, Z-direction slide unit 5 is raised to top, and then mobile gantry frame 3 moves to the top, cutter position that tool magazine 14 will exchange, and Z-direction slide unit 5 is stretched down the replacing of carrying out cutter; After cutter changing is good, Z-direction slide unit 5 is raised to top again, and mobile gantry frame 3 moves to workpiece place and carries out converted products.After work-handling is good, click start key, after system can wait circular index workbench 2 latter half workpiece to process, automatic displacement; If the latter half work of circular index workbench 2 has processed, and the workpiece of first half does not does not also load and unload, now system can wait work-handling good after, by just starting working after start key.
The 14 main shaft forms that adopted a word equidistantly to arrange in above-described embodiment 1, can be according to the structure of the condition of work more main shafts of employing and different arrangement modes in practical application, and for example matrix is arranged, snakelike arrangement.Tool magazine mode also can adopt chain flat placed type, and the automatic tool changer of the patent No. machining center that is 200880010051.5, and the flat placed type magazine tool structure of different structure all can use in the present invention according to condition of work; Tool magazine also can drive with numerical control, steam-operating, hydraulic pressure.
embodiment 2:shown in Fig. 5, the present embodiment is different from the first embodiment to be: Z-direction slide unit has adopted A slide unit 16, B slide unit 17, C slide unit 18, D slide unit 19, E slide unit 20 totally five slide unit compositions arranged side by side, and on the slide plate of each slide unit, has respectively filled two machining center main axle units 21 with the oil cylinder of forging a knife.The benefit of the relative embodiment mono-of the present embodiment is, in the time that the requirement of workpiece depth tolerances is more consistent, can only with five, cutter be processed, and owing to being independent servo slide table, its degree of depth can be adjusted by input parameter easily.
In above-described embodiment 2, Z-direction slide unit has adopted five numerical control servo slide unit structures arranged side by side, in practical application, can adopt two and more slide unit parallel construction according to condition of work; The slide plate of its each slide unit also can be installed one or more main shaft.
embodiment 3:shown in Fig. 6,7, the present embodiment is different from the first embodiment to be: one, Z-direction slide unit 30 is directly installed on mobile gantry frame 22, and the synchronous drive mechanism that adopts two cover servomotors 23 and rolling lead screw 24 to form is realized the accurate movement of Z axis; Two, Y-direction slide unit 25 is contained on Z-direction slide unit 30, and 14 machining center main axle units 26 with the oil cylinder of forging a knife are installed on Y-direction slide unit 25; Three, tool magazine 27 is arranged on base by rolling guide 28, and with mobile gantry frame 22 parallels, when tool changing, adopt rod-free cylinder 29 to be advanced to the end, and then form three dimension system by mobile gantry frame 22, Z-direction slide unit 30, Y-direction slide unit 25 and carry out tool changing.
The benefit of the relative embodiment mono-of the present embodiment is, because Z-direction slide unit 30 is directly installed on mobile gantry frame 22, thereby Z-direction stroke easily designs highlyer; In addition due to tool magazine 27 can with mobile gantry frame 22 parallels, thereby complete machine length can shorten.
In above-described embodiment 3, tool magazine also can be arranged on mobile gantry frame by rolling guide, and carrys out this tool magazine of transmission with servomotor and rolling lead screw.
The foregoing is only specific embodiments of the invention, but architectural feature of the present invention is not limited to this, any those skilled in the art, the variation of doing in the field of the invention or modification are all encompassed among the scope of the claims of the present invention.

Claims (8)

1. many main spindle numerical controls of moving gantry type Zuan Xi center, this numerical control drilling-milling central body adopts movable beam type gantry machining center framework, and it is mainly by base, mobile gantry frame, workpiece erecting bed, Y-direction slide unit, Z-direction slide unit, main axle unit, composition of the control system; It is characterized in that: workpiece erecting bed is directly installed on base; At the other end of workpiece erecting bed, and in the stroke of mobile gantry frame, flat placed type tool magazine is installed; Three or three main axle units that are provided with above automatic tool changer are installed on the slide plate of Y-direction or Z-direction slide unit; Its mobile gantry frame, Y-direction slide unit, Z-direction slide unit adopt numerical control servo to drive.
2. many main spindle numerical controls of moving gantry type Zuan Xi according to claim 1 center, is characterized in that: described workpiece erecting bed adopts circular index workbench.
3. many main spindle numerical controls of moving gantry type Zuan Xi according to claim 2 center, is characterized in that: described circular index workbench adopts two workbench such as circular index such as fraction such as grade.
4. according to many main spindle numerical controls of the moving gantry type Zuan Xi center described in claim 1-3 any one, it is characterized in that: described mobile gantry frame adopts the each a set of numerical-control motor in left and right to add the displacement drive mechanism of screw mandrel.
5. according to many main spindle numerical controls of the moving gantry type Zuan Xi center described in claim 1-4 any one, it is characterized in that: between the slide plate of described Z-direction slide unit and the slide plate of Y-direction slide unit, vertical compensating cylinder is installed.
6. according to many main spindle numerical controls of the moving gantry type Zuan Xi center described in claim 1-5 any one, it is characterized in that: can be according to one or more revolution working shafts of condition of work increase in demand on described circular index workbench.
7. according to many main spindle numerical controls of the moving gantry type Zuan Xi center described in claim 1-6 any one, it is characterized in that: described Y-direction slide unit is arranged on mobile gantry frame, Z-direction slide unit is arranged on Y-direction slide unit, and Z-direction slide unit is that majority is controlled servo slide table structures side by side.
8. many main spindle numerical controls of moving gantry type Zuan Xi according to claim 7 center, is characterized in that: on the slide plate of described arranged side by side most control servo slide tables, two main shafts are installed.
CN201210433064.1A 2012-11-04 2012-11-04 Movable gantry type multi-spindle numerical-control drilling and milling center Pending CN103786028A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104842204A (en) * 2015-04-24 2015-08-19 重庆麦斯特精密机械有限公司 Portal machining center combination for large part machining
CN104875065A (en) * 2015-04-24 2015-09-02 重庆麦斯特精密机械有限公司 Power assembly of multifunctional high-precision CNC (computer numerical control) machining center
CN104875078A (en) * 2015-04-24 2015-09-02 重庆麦斯特精密机械有限公司 Crossbeam-fixed type high-precision numerical control gantry machining center
CN105729135A (en) * 2016-04-13 2016-07-06 意特利(上海)科技有限公司 Machining center
CN108723883A (en) * 2018-05-29 2018-11-02 闫羽 A kind of five axis dragon boring-milling centers
CN110773826A (en) * 2019-09-02 2020-02-11 广东米尔迪克智能机械实业有限公司 Large-scale double ox head spark machine

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Publication number Priority date Publication date Assignee Title
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CN101480777A (en) * 2009-01-24 2009-07-15 苏州江南电梯(集团)有限公司 Five-shaft linkage numerical control machining center
CN101870063A (en) * 2009-04-24 2010-10-27 上海电机学院 Vertical five axle interlocked gantry digital control milling machining center
CN102172850A (en) * 2011-03-03 2011-09-07 梁刚 Central machining machine tool
CN202411837U (en) * 2011-12-26 2012-09-05 广州市敏嘉制造技术有限公司 Gantry multi-axis machining center
CN202963998U (en) * 2012-11-04 2013-06-05 林志贺 Traveler gantry type numerical control drilling and milling center with multiple main shafts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20019035U1 (en) * 2000-11-08 2001-01-18 Waldrich Werkzeugmasch Machine tool, in particular high-speed machining center
CN101480777A (en) * 2009-01-24 2009-07-15 苏州江南电梯(集团)有限公司 Five-shaft linkage numerical control machining center
CN101870063A (en) * 2009-04-24 2010-10-27 上海电机学院 Vertical five axle interlocked gantry digital control milling machining center
CN102172850A (en) * 2011-03-03 2011-09-07 梁刚 Central machining machine tool
CN202411837U (en) * 2011-12-26 2012-09-05 广州市敏嘉制造技术有限公司 Gantry multi-axis machining center
CN202963998U (en) * 2012-11-04 2013-06-05 林志贺 Traveler gantry type numerical control drilling and milling center with multiple main shafts

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104842204A (en) * 2015-04-24 2015-08-19 重庆麦斯特精密机械有限公司 Portal machining center combination for large part machining
CN104875065A (en) * 2015-04-24 2015-09-02 重庆麦斯特精密机械有限公司 Power assembly of multifunctional high-precision CNC (computer numerical control) machining center
CN104875078A (en) * 2015-04-24 2015-09-02 重庆麦斯特精密机械有限公司 Crossbeam-fixed type high-precision numerical control gantry machining center
CN105729135A (en) * 2016-04-13 2016-07-06 意特利(上海)科技有限公司 Machining center
CN108723883A (en) * 2018-05-29 2018-11-02 闫羽 A kind of five axis dragon boring-milling centers
CN110773826A (en) * 2019-09-02 2020-02-11 广东米尔迪克智能机械实业有限公司 Large-scale double ox head spark machine

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