CN203171360U - Multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring - Google Patents
Multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring Download PDFInfo
- Publication number
- CN203171360U CN203171360U CN 201320083812 CN201320083812U CN203171360U CN 203171360 U CN203171360 U CN 203171360U CN 201320083812 CN201320083812 CN 201320083812 CN 201320083812 U CN201320083812 U CN 201320083812U CN 203171360 U CN203171360 U CN 203171360U
- Authority
- CN
- China
- Prior art keywords
- axis
- main shaft
- servomotor
- drives
- power seat
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Turning (AREA)
Abstract
The utility model relates to a multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring. The machine tool integrates the drilling, the tapping, the milling and the boring, and comprises an electric control system. An X-axis saddle is vertically arranged at one end of a base of the machine tool, a Z-axis worktable is arranged on the base of the machine tool through Z-axis pin roller linear rails, a Z-axis ball screw rod is matched with the Z-axis worktable, and a Z-axis servo motor drives the Z-axis ball screw rod to drive the Z-axis worktable to move along the Z-axis pin roller linear rails in a Z-axis stroke. X-axis pin roller linear rails are arranged on the inner side face of the X-axis saddle, an X-axis worktable is located on the X-axis pin roller linear rails, an X-axis servo motor is arranged on the X-axis saddle between the X-axis pin roller linear rails, and the X-axis servo motor drives the X-axis worktable to move back and forth along the X-axis pin roller linear rails through an X-axis roller screw rod. A Y-axis saddle is arranged on the upper end face of the X-axis saddle, Y-axis pin roller linear rails are vertically arranged on the inner side of the Y-axis saddle, a Y-axis main shaft base is located on the Y-axis pin roller linear rails, and the Y-axis main shaft base is matched with a Y-axis roller screw rod on the back side of the Y-axis main shaft base.
Description
Technical field
The utility model relates to and a kind ofly collects brill, attacks, mills, boring is compound can multiplex's part processing bores and attack the combined numerically controlled machine lathe bed that mills boring, belongs to revolving horizontal Machining centers and making the field.
Background technology
The machining center machine that existing market is sold, the lathe volume is big (as 850 lathes, long 2500mm * wide 2500mm * high 2500mm), not only floor space is many, the lathe high material consumption, in process, though but multiplex's part is installed discharging, can only process the different station size by single station, must the tool changing of tool arm formula, and tool arm formula tool change time is 3 seconds (comprise location, automatically controlled letter in reply number) the soonest at present.Therefore this machining center lathe can't make quantification workpiece efficient get a promotion, and have high input (human and material resources, place), the lathe high material consumption, floor space is big, and the energy consumption height is unfavorable for environmental protection.
The utility model content
Purpose of design: avoid the weak point in the background technology, but design a kind of multiple operation, multistation converted products, many of like products are disposable to be machined and bores to attack than multiplex's part processing of 2～4 times of traditional machining center improving productivity and mill the boring combined numerically controlled machine.
Design: in order to realize above-mentioned purpose of design.1, the utility model to lathe casting structure heavy designs, adopts foundry goods modularity form on the basis of existing machining center lathe, and lathe casting is carried out die sinking.The foundry goods lathe bed base adopts the form of water-oil separating, i.e. the mode on cutting fluid and line rail oil, ball screw oil, bearing oil, two slopes of gear wet goods employing refluxes in water tank cutting fluid and its excess oil refluxes in swab case; Next, X-axis foundry goods length overall 1290mm, X-axis stroke maximum 800mm, it is processed that workpiece is maximized, and pick and place workpiece conveniently, and fast, and the span of increase X-axis two line rails makes the increase of work top supporting surface, the lifting maximum load-carrying capacity; The 3rd, cutter is installed on the module combined type power seat, module combined type power seat is fixed on the Z axle workbench, make the height between center cutter and the line rail level have only 279mm, and the roller line rail span that Z axle workbench is connected with lathe bed base is big, support steady, low central cutting improves the machine cut rigidity, is fit to multiple processing request.2, on existing tool-changing mechanism, module combined type power seat is fixed on the Z axle, adopt power seat modularity form, travelling table carries out tool changing action design, its moving speed of table can reach 36m/min, finish within 0.2s for adjacent cutter tool change time, finish within 1.2s for cutter tool change time farthest, its module combined type power seat can be made fast scheme accurately to workpiece, solve user's the matter of great urgency, and module combined type power seat can be processed identical a plurality of workpiece simultaneously, according to workpiece multistation demand, cutter is installed in module combined type power seat and arranges the power seat in order, satisfy the requirement to the processing of workpiece multistation.3, the utility model carries out the modularity design to type of drive on module combined type power seat, adopt servomotor that the main shaft drives mode is optimized, a servomotor can drive a main shaft, a servomotor also can drive the above main shaft of diaxon and diaxon, servomotor directly drives a main shaft by shaft coupling, this active main shaft tail end can be installed gear or synchronous pulley, pass through transition axis, gear or belt wheel are installed on the transition axis, initiatively main shaft passes through transition pulley by the transition gear transferring power in next main shaft or active main shaft, transition pulley is regulated belt degree of tightness transferring power realize that in next main shaft servomotor is to driving diaxon and the transmission of power more than the diaxon, and driven by servomotor can be done the rotating speed adjustment in any one position, to be fit to the workpiece processing that rotating speed is had relatively high expectations, and under the man-machine interface of electric control operation system, can be according to client's needs, the material of product and the requirement of processing technology, programme, to realize the function of speed change processing multiplex (MUX) part multistation.4, the utility model at module combined type power seat driven by servomotor main shaft quantitatively, its electric-control system that conforms to is done the modularity design, according to module combined type power seat driven by servomotor main shaft quantity, select the maximum maximum maximum 8 servo-drive axles/900ME operating system of supporting of 4 servo-drive axles/10B operating system of supporting of 3 servo-drive axles/EZ4 operating system of supporting of EZ3 operating system to support 8 above servo-drive axles, and can its operating system be carried out freely selecting according to requirement of client.
Technical scheme: a kind of multiplex's part processing is bored to attack and is milled the boring combined numerically controlled machine, comprise electric-control system, the X-axis saddle is erect and is installed in lathe base one end, Z axle workbench is installed on the lathe base by Z axle roller line rail, and the Z shaft ball screw cooperates with Z axle workbench and drives Z axle workbench by Z axle driven by servomotor Z shaft ball screw makes Z axle stroke action along Z axle roller line rail; X-axis roller line rail is installed in X-axis saddle medial surface, the X-axis workbench is positioned on the X-axis roller line rail, the X-axis servomotor is installed on the X-axis saddle between X-axis roller line rail, and the X-axis servomotor drives the X-axis workbench by X roller bearing screw mandrel and moves around along X-axis roller line rail; The Y-axis saddle is installed in X-axis saddle upper surface, Y-axis roller line rail is erect and is installed in Y-axis saddle medial surface, the Y-axis spindle drum is positioned on the Y-axis roller line rail and the Y-axis spindle drum cooperates with the Y-axis roller bearing screw mandrel that is positioned at the Y-axis spindle drum back side, and Y-axis roller bearing screw mandrel is by the Y-axis driven by servomotor.
The utility model is compared with background technology, the roller line rail span that the one, Z axle workbench is connected with lathe bed base is big, support steady, low central cutting, improve the machine cut rigidity, be fit to multiple processing request, can guarantee product quality effectively, improve cutter life, strengthened the comprehensive utilization ratio of lathe; The 2nd, and module combined type power seat can be processed identical a plurality of workpiece simultaneously, according to workpiece multistation demand, cutter is installed in module combined type power seat and arranges the power seat in order, satisfy the requirement to the processing of workpiece multistation, than 2～4 times of traditional machining center improving productivity, save tool change time; The 3rd, under the man-machine interface of electric control operation system, can be according to client's needs, the material of product and the requirement of processing technology are programmed, to realize the function of speed change processing multiplex (MUX) part multistation.
Description of drawings
Fig. 1 is that multiplex's part processing brill is attacked the structural representation that mills the boring combined numerically controlled machine, wherein 3-1 is the bed piece base, 3-2 is Z axle roller line rail, 3-3 is the Z shaft ball screw, 3-4 is Z axle servomotor, 3-5 is Z axle workbench, and 3-6 is X-axis roller line rail, and 3-7 is the X-axis servomotor, 3-8 is the X-axis ball screw, 3-9 is the X-axis saddle, and 3-10 is the X-axis workbench, and 3-11 is Y-axis saddle 2,3-12 is the Y-axis spindle drum, 3-13 is the Y-axis ball screw, and 3-14 is Y-axis roller line rail, and 3-15 is the Y-axis servomotor.
Fig. 2 is one of structural representation behind the module combined type power seat.
Fig. 3 is the structural representation of module combined type power seat, wherein 4-1 is the flange main shaft, 4-2 is the ER main shaft, 4-3 is the solid main shaft of side, and 4-4 is mill principal axis, and 4-5 is the cluster head main shaft, 4-6 is compound main shaft, 4-7 is side direction power seat, and 4-8 is that individual layer single shaft power seat adds cluster head, and 4-9 is individual layer single shaft power seat, 4-10 is individual layer diaxon power seat, 4-11 is three power seats of individual layer, and 4-12 is double-deck diaxon power seat, 4-13,4-14,4-15 is double-deck four power seats, 4-16 is double-deck six power seats, 4-17 adds cluster head for double-deck six power seats, and 4-18 is that double-deck single shaft power seat adds cluster head, and 4-19 is the vertical driving force seat.
Fig. 4 is the module combined type power seat schematic diagram that servo gear drives many spindle drives, and wherein 5-1 is servomotor, and 5-2 is shaft coupling, and 5-3 is the active main shaft, and 5-4 is driving gear, and 5-5 is transition gear, and 5-6 is driven gear, and 5-7 is slave spindle.
Fig. 5 is the module combined type power seat schematic diagram that servo synchronous band drives many spindle drives, and wherein 6-1 is the active main shaft, and 6-2 is shaft coupling, and 6-3 is servomotor, and 6-4 is synchronous pulley, and 6-5 is that band is adjusted wheel synchronously, and 6-6 is slave spindle.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-5.A kind of multiplex's part processing is bored to attack and is milled the boring combined numerically controlled machine, comprise electric-control system, X-axis saddle 3-9 erects and is installed in lathe base 3-1 one end, Z axle workbench 3-5 is installed on the lathe base 3-1 by Z axle roller line rail 3-2, and Z shaft ball screw 3-3 cooperates with Z axle workbench 3-5 and makes Z axle stroke action by Z axle servomotor 3-4 driving Z shaft ball screw 3-3 drive Z axle workbench 3-5 along Z axle roller line rail 3-2; X-axis roller line rail 3-6 is installed in X-axis saddle 3-9 medial surface, X-axis workbench 3-10 is positioned on the X-axis roller line rail 3-6, X-axis servomotor 3-7 is installed on the X-axis saddle 3-9 between X-axis roller line rail 3-6, and X-axis servomotor 3-7 drives X-axis workbench 3-10 by X roller bearing screw mandrel 3-8 and moves around along X-axis roller line rail 3-6; Y-axis saddle 3-11 is installed in X-axis saddle 3-9 upper surface, Y-axis roller line rail 3-14 erects and is installed in Y-axis saddle 3-11 medial surface, Y-axis spindle drum 3-12 is positioned at Y-axis roller line rail 3-14 upward and Y-axis spindle drum 3-12 cooperates with the Y-axis roller bearing screw mandrel 3-13 that is positioned at the Y-axis spindle drum 3-12 back side, and Y-axis roller bearing screw mandrel 3-13 is driven by Y-axis servomotor 3-15.
X-axis saddle 3-9 is groove shape structure, and Y-axis roller bearing screw mandrel 3-13 and Y-axis servomotor 3-15 are positioned at groove.X-axis saddle 3-9 erect be installed in lathe base 3-1 one end and with machine tool horizontal lathe bed form right angle.Module combined type power seat 4 is positioned on the Z axle workbench 3-5, and its module combined type power seat 4 contains flange main shaft 4-1, ER main shaft 4-2, the solid main shaft 4-3 of side, mill principal axis 4-4, cluster head main shaft 4-5, compound main shaft 4-6, side direction power seat 4-7, individual layer single shaft power seat adds cluster head 4-8, individual layer single shaft power seat 4-9, individual layer diaxon power seat 4-10, three power seats of individual layer 4-11, double-deck diaxon power seat 4-12, double-deck four power seat (4-13,4-14,4-15), double-deck six power seat 4-16, double-deck six power seats add cluster head 4-17, double-deck single shaft power seat adds cluster head 4-18, one or more combinations among the vertical driving force seat 4-19.
Module combined type power seat 4 drives many spindle drives for servo gear, and the servomotor 5-1 that servo gear drives in the many spindle drives is connected with active main shaft 5-3 on being positioned at the power pedestal by shaft coupling 5-2, driving gear 5-4 is installed on the active main shaft 5-3, driving gear 5-4 engagement transition gear 5-5, transition gear 5-5 engagement driven gear 5-6, driven gear 5-6 is installed on slave spindle 5-7 upward and slave spindle 5-7 is positioned on the power pedestal, driving initiatively by servomotor 5-1, main shaft 5-3 is just making the active main shaft, driving slave spindle 5-7 by gear transmission in the time of the despining campaign is just doing, the despining campaign realizes that a servomotor drives many motion of main shaft.
Cutter is installed on the module combined type power seat 4, makes that the height between center cutter and the line rail level is 279mm.
Cutting fluid among the bed piece base 3-1 and line rail oil, ball screw oil, bearing oil, gear oil adopt two ramp structures, cutting fluid is refluxed in water tank, and its excess oil reflux in swab case.
Embodiment 2: with reference to accompanying drawing 5.On the basis of embodiment 1, module combined type power seat 4 is that servo synchronous band drives many spindle drives, and the servomotor 6-3 that servo synchronous band drives in the many spindle drives is connected with active main shaft 6-1 on being positioned at the power pedestal by shaft coupling 6-2, synchronous pulley 6-4 is installed on active main shaft 6-1 and slave spindle 6-6 goes up and driven shaft 6-6 is positioned on the power pedestal, synchronous pulley makes slave spindle 6-6 do positive and negative rotatablely moving by the transfer function of synchronous band, realizes that a servomotor drives many slave spindle motions.Be that the power pedestal is provided with synchronous band adjustment wheel 6-5.The power pedestal is provided with transition axis, and transition pulley is installed on the transition axis, thereby this transition pulley is realized an initiatively purpose of many slave spindles rotations of main shaft drive by synchronous band.
What need understand is: though above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text seedling of the utility model mentality of designing is stated; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (9)
1. multiplex's part processing is bored to attack and is milled the boring combined numerically controlled machine, comprise electric-control system, it is characterized in that: X-axis saddle (3-9) is erect and is installed in lathe base (3-1) end, Z axle workbench (3-5) is installed on the lathe base (3-1) by Z axle roller line rail (3-2), and Z shaft ball screw (3-3) cooperates with Z axle workbench (3-5) and drives Z shaft ball screw (3-3) drive Z axle workbench (3-5) by Z axle servomotor (3-4) makes Z axle stroke action along Z axle roller line rail (3-2); X-axis roller line rail (3-6) is installed in X-axis saddle (3-9) medial surface, X-axis workbench (3-10) is positioned on the X-axis roller line rail (3-6), X-axis servomotor (3-7) is installed on the X-axis saddle (3-9) between X-axis roller line rail (3-6), and X-axis servomotor (3-7) drives X-axis workbench (3-10) by X roller bearing screw mandrel (3-8) and moves around along X-axis roller line rail (3-6); Y-axis saddle (3-11) is installed in X-axis saddle (3-9) upper surface, Y-axis roller line rail (3-14) is erect and is installed in Y-axis saddle (3-11) medial surface, Y-axis spindle drum (3-12) is positioned at Y-axis roller line rail (3-14) upward and Y-axis spindle drum (3-12) cooperates with the Y-axis roller bearing screw mandrel (3-13) that is positioned at Y-axis spindle drum (3-12) back side, and Y-axis roller bearing screw mandrel (3-13) is driven by Y-axis servomotor (3-15).
2. multiplex's part according to claim 1 processing is bored to attack and is milled the boring combined numerically controlled machine, it is characterized in that: X-axis saddle (3-9) erect be installed in lathe base (3-1) end and with machine tool horizontal lathe bed form right angle.
3. multiplex's part processing according to claim 1 is bored to attack and is milled the boring combined numerically controlled machine, and it is characterized in that: the module combined type power seat is on Z axle workbench (3-5).
4. multiplex's part processing according to claim 1 is bored to attack and is milled the boring combined numerically controlled machine, and it is characterized in that: X-axis saddle (3-9) is groove shape structure, and Y-axis roller bearing screw mandrel (3-13) and Y-axis servomotor (3-15) are positioned at groove.
5. multiplex's part processing according to claim 1 is bored to attack and is milled the boring combined numerically controlled machine, and it is characterized in that: module combined type power seat (4) contains flange main shaft (4-1), ER main shaft (4-2), the solid main shaft (4-3) of side, mill principal axis (4-4), cluster head main shaft (4-5), compound main shaft (4-6), side direction power seat (4-7), individual layer single shaft power seat adds cluster head (4-8), individual layer single shaft power seat (4-9), individual layer diaxon power seat (4-10), three power seats of individual layer (4-11), double-deck diaxon power seat (4-12), double-deck four power seat (4-13,4-14,4-15), double-deck six power seats (4-16), double-deck six power seats add cluster head (4-17), double-deck single shaft power seat adds cluster head (4-18), one or more combinations in the vertical driving force seat (4-19).
6. multiplex's part processing according to claim 5 is bored to attack and is milled the boring combined numerically controlled machine, it is characterized in that: module combined type power seat (4) drives many spindle drives for servo gear, and the servomotor (5-1) that servo gear drives in the many spindle drives is connected with active main shaft (5-3) on being positioned at the power pedestal by shaft coupling (5-2), driving gear (5-4) is installed on the active main shaft (5-3), driving gear (5-4) engagement transition gear (5-5), transition gear (5-5) engagement driven gear (5-6), driven gear (5-6) is installed on slave spindle (5-7) upward and slave spindle (5-7) is positioned on the power pedestal, drive active main shaft (5-3) by servomotor (5-1) and just making the active main shaft, driving slave spindle (5-7) by gear transmission in the time of the despining campaign is just doing, the despining campaign realizes that a servomotor drives many motion of main shaft.
7. multiplex's part processing according to claim 5 is bored to attack and is milled the boring combined numerically controlled machine, it is characterized in that: module combined type power seat (4) drives many spindle drives for servo synchronous band, and the servomotor (6-3) that servo synchronous band drives in the many spindle drives is connected with active main shaft (6-1) on being positioned at the power pedestal by shaft coupling (6-2), synchronous pulley (6-4) is installed on active main shaft (6-1) and the slave spindle (6-6), synchronous pulley is just making slave spindle (6-6) by the transfer function of synchronous band, the despining campaign realizes that a servomotor drives many motion of main shaft.
8. multiplex's part processing according to claim 5 is bored to attack and is milled the boring combined numerically controlled machine, and it is characterized in that: cutter is installed on the module combined type power seat (4), makes that the height between center cutter and the line rail level is 279mm.
9. multiplex's part processing according to claim 5 is bored to attack and is milled the boring combined numerically controlled machine, it is characterized in that: the cutting fluid in the bed piece base (3-1) and line rail oil, ball screw oil, bearing oil, gear oil adopt two ramp structures, cutting fluid is refluxed in water tank, and its excess oil reflux in swab case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083812 CN203171360U (en) | 2013-02-25 | 2013-02-25 | Multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083812 CN203171360U (en) | 2013-02-25 | 2013-02-25 | Multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171360U true CN203171360U (en) | 2013-09-04 |
Family
ID=49068113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083812 Withdrawn - After Issue CN203171360U (en) | 2013-02-25 | 2013-02-25 | Multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171360U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143989A (en) * | 2013-02-25 | 2013-06-12 | 杭州贝克机械有限公司 | Drilling, tapping, milling and boring combined numerical control machine tool with multi-workpiece processing function |
| CN104029071A (en) * | 2014-06-03 | 2014-09-10 | 山东威达重工股份有限公司 | Guide rail and ball screw structure for lifting of both cross beam and horizontal boring and milling heads at two sides |
-
2013
- 2013-02-25 CN CN 201320083812 patent/CN203171360U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143989A (en) * | 2013-02-25 | 2013-06-12 | 杭州贝克机械有限公司 | Drilling, tapping, milling and boring combined numerical control machine tool with multi-workpiece processing function |
| CN104029071A (en) * | 2014-06-03 | 2014-09-10 | 山东威达重工股份有限公司 | Guide rail and ball screw structure for lifting of both cross beam and horizontal boring and milling heads at two sides |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103143989B (en) | Milling boring combined numerically controlled machine attacked by multi-work piece processing brill | |
| CN201856088U (en) | Moving beam type numerical control gantry combined machine tool | |
| CN202447889U (en) | Numerical control turning and milling combined machining center | |
| CN201329497Y (en) | Digital control drilling-milling device with a plurality of independent processing systems | |
| CN203044948U (en) | Deep-hole drilling machine tool capable of machining a plurality of deep holes with different diameters and different depths simultaneously | |
| CN103158038A (en) | High-speed vertical machining center | |
| CN201470894U (en) | Numerical control vertical lathe | |
| CN203343729U (en) | Numerically-controlled gantry vertical-and-horizontal compound machining center with tool magazines and main shafts compounded on saddles | |
| CN203304995U (en) | Compound numerical control machine tool capable of carrying out drilling, tapping, milling and boring processing on a plurality of workpieces at one time | |
| CN203171360U (en) | Multi-workpiece machining combined numerical control machine tool for drilling, tapping, milling and boring | |
| CN201446403U (en) | L-shaped beam guide rail structure of gantry machining centre and gantry engraving and milling machine | |
| CN203245400U (en) | Intelligent three-dimensional multiple-spindle single action and joint action adjustable numerical-control drilling and boring system | |
| CN203304996U (en) | Composite drilling, tapping, milling and boring numerical control machine tool | |
| CN201052575Y (en) | Multifunctional machine tool for digital control vehicle milling drill | |
| CN202479814U (en) | Turning and milling composite power head device | |
| CN211991817U (en) | Special double-spindle numerical control lathe for automatic production line | |
| CN203679282U (en) | 75-degree oblique-bed-body dual-bed-saddle row tool numerical control horizontal lathe | |
| CN103143990B (en) | A multi-work piece processing can bore the combined numerically controlled machine of attacking milling boring | |
| CN202684235U (en) | Numerical-control gulleting machine tool rest mechanism of large-sized cylindrical gear | |
| CN201338215Y (en) | Reconfigurable production system combined with drilling, turning and milling functions | |
| CN202763057U (en) | High-efficiency numerical control turning center | |
| CN201969964U (en) | Numerical control gear chamfering machine | |
| CN201783655U (en) | Double-shaft slant-bed numerically controlled lathe | |
| CN205325339U (en) | Five lathes of whetting a knife | |
| CN204565757U (en) | A kind of high-speed numeric control bores attacks milling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |