CN100415418C - Radial drilling machine capable of conducting boring processing - Google Patents
Radial drilling machine capable of conducting boring processing Download PDFInfo
- Publication number
- CN100415418C CN100415418C CNB2003101105464A CN200310110546A CN100415418C CN 100415418 C CN100415418 C CN 100415418C CN B2003101105464 A CNB2003101105464 A CN B2003101105464A CN 200310110546 A CN200310110546 A CN 200310110546A CN 100415418 C CN100415418 C CN 100415418C
- Authority
- CN
- China
- Prior art keywords
- boring
- drilling machine
- boring bar
- radial drilling
- main shaft
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Drilling And Boring (AREA)
Abstract
The present invention relates to a radial drilling machine capable of boring, which comprises a machine body, a rocker arm, a motor, a main shaft supporting base and a main shaft, wherein the rocker arm is sheathed on the machine body and is capable of rotating around the shaft center of the machine body and moving up and down along a shaft center line. The main shaft supporting base is arranged on the rocker arm and is capable of moving transversely along a guide groove arranged on the rocker arm. The motor is fixed on the main shaft supporting base; the main shaft which can be driven to rotate and simultaneously move up and down by the motor is arranged in the main shaft supporting base. The present invention is characterized in that the main shaft is connected with a boring bar shaft; a boring bar sleeve is sheathed on the boring bar shaft and is positioned by a positioning component; the front end of the boring bar sleeve is provided with the boring cutter combined block which can make a boring cutter blade on the boring cutter combined block move along the radial direction through the movement of the boring bar shaft. The present invention fully utilizes the characteristic of convenient and flexible processing of the radial drilling machine, to design a special boring clamp according to the movement characteristic of the radial drilling machine. The present invention has the advantages of reasonable structure design and convenient operation, and achieves the design goal of processing an inner groove of a box body bearing hole on the radial drilling machine. Meanwhile, the processing capacity of the radial drilling machine is enhanced, and the processing range of the radial drilling machine is widened.
Description
Technical field:
The present invention relates to the machine-building manufacture field, be specifically related to a kind of improvement that existing radial drilling machine is done, can on its drilling machine, carry out boring processing.
Background technology:
At present, at the machine-building manufacture field, processing to the dead eye and the inside groove thereof of large-size box, the main boring machine processing method that adopts, comparatively suitable under the few situation of production lot, and the hole group of and casing big when batch more for a long time, it is slow just fully to demonstrate its speed, the defective that efficient is low, and take service time of large-scale borer in a large number, very uneconomical, if adopt special plane machining box dead eye group, but improve production efficiency and product quality, but if will can make special plane mechanism complexity simultaneously processing very difficulty of groove within the dead eye (circlip groove) on the special plane simultaneously, and its working (machining) efficiency reduces, and does not calculate very much; If other process the dead eye group on special plane, it is placed to boring machine again and gets on to process inside groove, then more bothers, very inconvenient, is difficult to adapt to the needs of present modernized high efficiency production.Radial drilling machine is because it is simple in structure, easy to use, flexible characteristic and being widely used in each middle-size and small-size machining enterprise, but, be difficult to finish the processing of sundry item because it adds the man-hour motion of main shaft only for rotatablely moving and the vertical direction feed motion, thereby has certain limitation.
Summary of the invention:
Technical problem to be solved by this invention is how in the processing that realizes groove within the casing dead eye on the radial drilling machine, to reach both convenient and swift, can satisfy the crudy requirement of product again fully.
The present invention improves present widely used radial drilling machine.This drilling machine comprises lathe bed; rocking arm; motor; spindle bearing and main shaft; described rocking arm is placed on the lathe bed and can rotates around the lathe bed main shaft and can move up and down along its axial line simultaneously; spindle bearing places on the rocking arm; can move laterally along the guide groove of offering on the rocking arm; motor is fixed on the spindle bearing; be provided with in the spindle bearing and can make the main shaft that rotation moves up and down simultaneously by driven by motor; described main shaft is connected with a boring bar axle; be with the boring bar cover on this boring bar axle; the boring bar cover is located by positioning component, and front end is provided with can be by the mobile boring cutter combination block that boring cutter sheet work on it is radially passed of boring bar axle.The present invention is characterised in that: described boring cutter combination block comprises boring cutter sheet, blade folder, boring cutter seat and push rod etc., the boring cutter seat is fixed on boring bar and puts, push rod places in this boring cutter seat, boring bar axle afterbody is a circular cone with the part that push rod touches mutually, push rod one end insertion boring bar puts in the jack of offering and can touch mutually with the boring bar axle, the other end follows the cutter holder flange that is clamped on one with the blade that the boring cutter sheet is housed to join, and blade folder bottom also is provided with can adjust the radially adjustment pad of depth of cut of boring cutter sheet.Described positioning component comprises positioning sleeve, bearing, backing plate, and described positioning sleeve is placed in boring bar and puts, and its outer round surface is equipped with bearing, is fixed on the backing plate by bearing, bearing block.Also be with pressing plate on the boring bar axle, the depression bar that the bottom is fixed on positioning sleeve is housed on this pressing plate, spring is loaded between pressing plate and the positioning sleeve and is placed on this depression bar.For guaranteeing the steady of process, put at boring bar and also be provided with radial support.For the cooling that strengthens the boring cutter sheet and lubricated, prolong its service life, on anchor clamps, also be provided with oiling device.
It is easy to process that the present invention makes full use of radial drilling machine, flexible characteristic, and can special use boring clamp thereon according to the movement characteristic design of radial drilling machine processing, the rotary cutting and the motion of the radial feed in the rotary cutting process of boring cutter have been realized, its jig Design is rational in infrastructure, easy to operate, reached the purpose of design of groove within machining box dead eye on the radial drilling machine, its product that processes all can reach the drawing requirement, compare with on boring machine, processing, many non-cutting times have been saved, reduced product cost, improved labor productivity, special under the situation of large-scale borer working ability deficiency, more demonstrated its advantage and characteristics, can improve simultaneously the working ability of radial drilling machine, widen the range of work of radial drilling machine.
Description of drawings:
Fig. 1 is a structural front view of the present invention;
Fig. 2 is boring clamp structure embodiment of the present invention;
Fig. 3 is the boring cutter combination block structural representation of boring clamp embodiment of the present invention;
Fig. 4 is the lubricated part-structure schematic diagram of the present invention.
Among the figure:
1-boring cutter combination block; 11-boring cutter sheet; 12-blade folder;
13-adjusts pad; 14-cutter holder flange; The 15-push rod;
The 16-cover plate; The 17-elastic component; 18-boring cutter seat;
The 2-positioning component; The 21-backing plate; The 22-briquetting;
The 23-depression bar; The 24-positioning sleeve; The 25-key;
The 26-depression bar; The 27-pressing plate; The 28-spring;
The 29-bearing; The 30-bearing baffle; The 31-bearing block;
32-boring bar cover; 33-boring bar axle; The 4-radial support;
41-radial support seat; The 5-workpiece; 51-oiling base;
The 52-oil fuel tube; The 6-lathe bed; The 7-rocking arm;
The 8-motor; The 9-main shaft; The 10-spindle bearing.
The specific embodiment:
At present, radial drilling machine is used quite extensively in the field of machining, but existing radial drilling machine adds man-hour its motion of main shaft for rotatablely moving and the vertical direction feed motion, 1), the transmission and the conversion (drill press spindle lacks the radial feed motion that is used for the boring inside groove) of motion will process the inside groove of dead eye with the radial drilling machine boring, the subject matter of existence has:; 2), the width of inside groove and degree of depth control; 3), the safety of inside groove boring blade is cut and is withdrawed from; 4), the stationarity of moving in the process; 5), the wearing and tearing of blade and replacing; 6), the cooling of blade and lubricated etc.The present invention is directed to the problems referred to above, designed a kind of can be on radial drilling machine boring process the special fixture of dead eye inside groove, enable to address the above problem.As shown in Figure 1, it comprises lathe bed 6; rocking arm 7; motor 8; spindle bearing 10 and main shaft 9; described lathe bed 6 fixes on the ground by fot screw; rocking arm 7 one ends are placed on the lathe bed 6; can rotate around its axle center; can move up and down along its axial line simultaneously; spindle bearing 10 places rocking arm 7 other ends; be processed with the guide rail that can move laterally along the guide groove of offering on the rocking arm 7 on it; motor 8 is fixed on spindle bearing 10 tip positions; main shaft 9 is housed in the spindle bearing 10, and this main shaft 9 can be driven by motor 8 and rotate, the while can move up and down under other actuated elements drives (not drawing among the figure).As Fig. 1, shown in Figure 2, the present invention is characterised in that and connects a boring clamp on this radial drilling machine main shaft 9, these anchor clamps are provided with a boring bar axle 33, described boring bar axle 33 1 ends and drill press spindle 9 join, adopt the Mohs awl to be connected between the two, quick and easy for installation, be with boring bar cover 32 on this boring bar axle 33, connect with key 7, present embodiment adopts flat key to connect, and can pass motion to boring bar axle 33 by drill press spindle 9, drive together rotation of boring bar cover 32 by flat key 7 then, key 7 and boring bar overlap to adopt between 32 keyways and are slidingly matched, and can make boring bar cover 32 in 33 rotations of boring bar axle, can not hinder the bottom and top feed motion of boring bar axle 33.Boring bar cover 32 is by dress positioning component 2 location thereon, and this positioning component 2 can place on the workpiece to be processed 5, to give whole anchor clamps location.Overlap 32 front ends at boring bar, boring cutter combination block 1 is housed, boring cutter sheet 11 is housed on it, can make it do radially to pass by the mobile of boring bar axle 33.Like this, by positioning component 2 location, together rotate by boring bar cover 32 drive boring cutter combination block 1 and boring cutter sheet 11 attached to it then, do radially to pass by the mobile boring cutter sheet 11 that makes of boring bar axle 33 simultaneously, thereby realized rotating in a circumferential direction and radial feed of inside groove processing.
As shown in Figure 3, boring cutter combination block 1 of the present invention comprises boring cutter sheet 11, blade folder 12, cutter holder flange 14, boring cutter seat 18 and push rod 15 etc., described boring cutter seat 18 is fixed on the boring bar cover 32, push rod 15 places in this boring cutter seat 18, one end is the semicircle sphere, the insertion boring bar overlaps in the jack of offering on 32 and can touch mutually with boring bar axle 33, the other end is processed with a shaft shoulder, touch mutually with cutter holder flange 14, cutter holder flange 14 is fastening with blade folder 12 usefulness screws, on the blade folder 12 boring cutter sheet 11 is housed, boring cutter sheet 11 places blade to press from both sides 12 locating slots, be welded in one with copper arc welding electrode again, when changing blade, moltenly snap seam and get final product.On the blade folder 2 cover plate 16 is housed, is fixed on the boring cutter seat 18, adopt the gap to be slidingly matched between the two, to guarantee the correct guidance of boring cutter sheet 11 when radial feed and the withdrawing.The width dimensions of cutting inside groove is controlled by the width of blade, guarantees when cutting blade.
Press from both sides 12 bottoms at blade, be equipped with and adjust pad 13, between blade folder 12 and cutter holder flange 14, consider the length and the wearing and tearing of boring cutter sheet 11, in certain scope, can be by increasing or reduce the quantity of adjusting pad 13, control the radial depth of boring cutter sheet 11 incision dead eyes, to satisfy the requirement of inside groove depth dimensions, when 11 wearing and tearing of boring cutter sheet are too short, replaceable new blade.Between cover plate 16 and cutter holder flange 14, also be provided with elastic component 17, be used for ejection cutter holder flange 14, push rod 15, drive boring cutter sheet 11 and reset.
As Fig. 2, shown in Figure 3, boring bar axle 33 afterbodys of the present invention and the working portion that push rod 15 touches mutually are designed to have the circular cone of certain angle, when drill press spindle 9 and boring bar axle 33 are done vertical feed downwards, boring bar axle 33 afterbody cone ejection push rods 15 heads, force cutter holder flange 14 extruding elastic components 17, drive blade folder 12, boring cutter sheet 11 to left movement, make radial feed.
During original state, boring bar axle 33 does not contact push rod 15, and elastic component 17 ejection cutter holder flanges 14 are against boring cutter seat 18 inner faces to the right, and boring cutter sheet 11 is inwardly shunk, and is convenient to sectional fixture and makes blade not injure workpiece 5 dead eyes.When the boring inside groove, boring bar axle 33 tail cone ejection push rods 15 make the 11 slow feeds of boring cutter sheet, realize cutting.When boring bar axle 33 continues when downward, when circular cone entered column part contact push rod 15, the depth of cut be a maximum, and this depth of cut is the feed distance of boring cutter sheet 11.After inside groove machined, boring bar axle 33 withdrawed from, and elastic component 17 can eject push rod 15 by cutter holder flange 14 automatically resets it, and meanwhile, boring cutter sheet 11 also withdraws from inside groove, is contracted to original position.
As shown in Figure 2, positioning component 2 of the present invention comprises positioning sleeve 24, bearing 29, backing plate 21, described positioning sleeve 24 is placed on the boring bar cover 32, its outer round surface is equipped with bearing 29, and this bearing is the separate type taper roll bearing, and the bottom, outer ring is loaded on the bearing block 31 that is fixed on the backing plate 21, bearing baffle 30 is housed on the top, by seam location, bearing block 31 upper end, fixing by the depression bar 23 that a briquetting 22 and an end are threaded onto on the backing plate 21,21 on backing plate is fastening by screw and workpiece 5.On boring bar axle 33, also be with pressing plate 27, the depression bar 26 that the bottom is fixed on positioning sleeve 24 is housed on this pressing plate 27, spring 28 is loaded between pressing plate 27 and the positioning sleeve 24, is placed on the depression bar 26.Like this, when boring bar axle 33 is done feed motion downwards, pass to 24 1 downward axial forces of positioning sleeve by pressing plate 27 and spring 28, taper roll bearing 29 Internal and external cycles are closed all the time in one, like this, anchor clamps move more steady reliably when rotary cutting, and the inside groove that processes with abundant assurance reaches the drawing quality requirement.
In the actual practicality, consider that asymmetric cutting can make the cutting force list inclined to one side, thereby make boring bar axle 33 and boring bar overlap 32 beats, cause rotatablely move not steady, the present invention is welded with radial support seat 41 on boring bar cover 32, with screw radial support 4 is housed on this supporting seat, to guarantee the stationarity of motion.For reducing the wearing and tearing of 4 pairs of dead eyes of radial support, the material of radial support 4 can be selected brass alloys for use, supports wearing and tearing back fast changeable.
For overcoming heating and the dry grinding of boring cutter sheet 11 in the boring process, to strengthen the lubricated of blade and to prolong its service life, as shown in Figure 4, offer a clear opening on the positioning sleeve 24 of the present invention, oil fuel tube 52 1 ends pass through this through hole and place boring cutter sheet 11 tops, the other end is positioned on the pressing plate 27 by oiling base 51, adopts matched in clearance between oiling base 51 and the pressing plate 27, with moving down of not overslaugh pressing plate 27.Lubricating oil can be injected on the boring cutter sheet 11 by this pipe, boring cutter sheet 11 is cooled off and lubricates.Slower because of inside groove boring speed, lubricating oil only need splash at interval and can meet the demands.
Boring clamp of the present invention both can be sold as annex that complete machine is with radial drilling machine, also can be separately be used for drilling machine as the accessory of radial drilling machine, only needed during use drill bit on the former drilling machine unloaded to get final product, and was very convenient.
Claims (7)
1. radial drilling machine capable of conducting boring processing; Comprise lathe bed (6); Rocking arm (7); Motor (8); Spindle bearing (10) and main shaft (9); The upper cover of described lathe bed (6) has the rocking arm (7) that can rotate around its axle center and can move up and down along its axial line; Spindle bearing (10) places on the rocking arm (7); Be processed with the guide rail that can move laterally along the guide groove of offering on the rocking arm (7) on it; Motor (8) is fixed on the spindle bearing (10); Being provided with in the spindle bearing (10) can be by the action rotation of motor (8) band and the main shaft (9) that can move up and down simultaneously; Described main shaft (9) is connected with a boring bar axle (33); The upper cover of this boring bar axle (33) has boring bar cover (32); Boring bar cover (32) is by dress positioning component (2) location thereon; Front end is provided with and can makes up piece (1) by the boring cutter that the boring blade (11) that moving up and down of boring bar axle (33) makes on it is done radially to pass; It is characterized in that: described boring cutter combination piece (1) comprises boring blade (11); Cutting blade clip (12); Boring cutter seat (18) and push rod (15); Boring cutter seat (18) is fixed on the boring bar cover (32); Push rod (15) places in this boring cutter seat (18); One end inserts in the jack of offering on the boring bar cover (32) and can touch mutually with boring bar axle (33), and the other end joins with the cutting blade clip (12) that boring blade (11) are housed.
2. radial drilling machine capable of conducting boring processing according to claim 1, it is characterized in that positioning component (2) comprises positioning sleeve (24), bearing (29), backing plate (21), described positioning sleeve (24) is placed on the boring bar cover (32), its outer round surface is equipped with bearing (29), is fixed on the backing plate (21) by bearing block (31).
3. radial drilling machine capable of conducting boring processing according to claim 1 is characterized in that boring bar cover (32) is provided with radial support (4).
4. radial drilling machine capable of conducting boring processing according to claim 1 is characterized in that the part that boring bar axle (33) afterbody and push rod (15) touch mutually is a circular cone.
5. radial drilling machine capable of conducting boring processing according to claim 1 is characterized in that blade folder (12) bottom is provided with can adjust the radially adjustment pad (13) of depth of cut of boring cutter sheet (11).
6. radial drilling machine capable of conducting boring processing according to claim 1 is characterized in that Elastic Contact between push rod (15), blade folder (12), cutter holder flange (14) and cover plate (16), the bearing block (31).
7. radial drilling machine capable of conducting boring processing according to claim 2, it is characterized in that also being with on the boring bar axle (33) pressing plate (27), the depression bar (26) that the bottom is fixed on positioning sleeve (24) is housed on this pressing plate (27), spring (28) is loaded between pressing plate (27) and the positioning sleeve (24), is placed on the depression bar (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101105464A CN100415418C (en) | 2003-11-21 | 2003-11-21 | Radial drilling machine capable of conducting boring processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101105464A CN100415418C (en) | 2003-11-21 | 2003-11-21 | Radial drilling machine capable of conducting boring processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544190A CN1544190A (en) | 2004-11-10 |
| CN100415418C true CN100415418C (en) | 2008-09-03 |
Family
ID=34335652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101105464A Expired - Fee Related CN100415418C (en) | 2003-11-21 | 2003-11-21 | Radial drilling machine capable of conducting boring processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100415418C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179542A (en) * | 2011-05-24 | 2011-09-14 | 浙江通达钢模有限公司 | Boring device |
| CN102266962A (en) * | 2011-07-19 | 2011-12-07 | 天津重钢机械装备股份有限公司 | Device for boring holes on end face of large-sized workpiece by drill press |
| CN106624293B (en) * | 2016-12-09 | 2019-03-15 | 广西建工集团第五建筑工程有限责任公司 | Combined submerged arc welding device and method for carrying out butt welding on large-diameter steel pipe |
| CN107309952A (en) * | 2017-07-05 | 2017-11-03 | 嘉善县飞虹钮扣厂 | A kind of button process equipment with drilling function |
| CN107234667A (en) * | 2017-07-05 | 2017-10-10 | 嘉善县飞虹钮扣厂 | A kind of button boring equipment |
| CN111558734A (en) * | 2020-06-17 | 2020-08-21 | 东北林业大学 | Radial automatic tool retracting device structure for inner hole boring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3771896A (en) * | 1970-09-05 | 1973-11-13 | R Frank | Radial boring machine with extending, adjustable boring head |
| CN2335725Y (en) * | 1998-06-29 | 1999-09-01 | 四平市鸿宇机床附件厂 | Special boring cutter for undercutting trough of tube plate |
| CN2578025Y (en) * | 2002-10-25 | 2003-10-08 | 张洪羽 | Automatic hydraulic drill machines |
| CN2664818Y (en) * | 2003-11-21 | 2004-12-22 | 三一重工股份有限公司 | Radial drilling machine capable of boring |
-
2003
- 2003-11-21 CN CNB2003101105464A patent/CN100415418C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3771896A (en) * | 1970-09-05 | 1973-11-13 | R Frank | Radial boring machine with extending, adjustable boring head |
| CN2335725Y (en) * | 1998-06-29 | 1999-09-01 | 四平市鸿宇机床附件厂 | Special boring cutter for undercutting trough of tube plate |
| CN2578025Y (en) * | 2002-10-25 | 2003-10-08 | 张洪羽 | Automatic hydraulic drill machines |
| CN2664818Y (en) * | 2003-11-21 | 2004-12-22 | 三一重工股份有限公司 | Radial drilling machine capable of boring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1544190A (en) | 2004-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104589061B (en) | Rod class part cutting and drilling integrated machine | |
| CN110216479B (en) | Drilling and milling composite automatic hole making device | |
| CN101704228B (en) | Bar-dedicated clamp | |
| CN110976980B (en) | Bearing bush workpiece splayed oil line automatic processing equipment | |
| CN100415418C (en) | Radial drilling machine capable of conducting boring processing | |
| CN210281914U (en) | Shaft workpiece clamping mechanism | |
| CN112548191A (en) | Full-automatic pipe cutting machine | |
| CN2664818Y (en) | Radial drilling machine capable of boring | |
| CN201235408Y (en) | Apparatus for machining workpiece with lathe replacing boring mill | |
| CN205996532U (en) | A kind of tool magazine lathe | |
| CN2900057Y (en) | Pipe rotary driver | |
| CN110744305B (en) | Efficient deep hole turning and boring machine and method for machining deep hole by using same | |
| CN100519028C (en) | Digital controlled metal band saw having double primary motion | |
| CN112405117A (en) | Multifunctional numerical control machine tool | |
| CN103273145A (en) | Method for machining worm shaft sleeve spiral teeth of revolving cup spinning machine | |
| CN100415419C (en) | Boring fixture capable of conducting boring processing on drilling machine | |
| CN203725816U (en) | Machining device for inner hole of shaft type workpiece | |
| CN102632250A (en) | Deep-hole cutter-lifting lathe for automatically clamping work-piece without shutdown | |
| CN202555829U (en) | Deep-hole cutter lifting lathe capable of automatically clamping workpieces without shutdown | |
| CN2664819Y (en) | Boring gripper capable of boring on the drill press | |
| CN210232441U (en) | Turnover feed workbench | |
| CN215280805U (en) | Perforating device is used in auto-parts processing | |
| CN211219841U (en) | Full-automatic turntable | |
| CN211489711U (en) | Triaxial machining center | |
| CN210937933U (en) | Ultrasonic rolling device for large-diameter metal inner spherical surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130507 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130507 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 31 industrial city, Xingsha Economic Development Zone, Hunan, Changsha Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20131121 |