CN207086971U - A kind of double end bore hole lathe of long rod both ends with taper hole workpiece - Google Patents
A kind of double end bore hole lathe of long rod both ends with taper hole workpiece Download PDFInfo
- Publication number
- CN207086971U CN207086971U CN201720867519.9U CN201720867519U CN207086971U CN 207086971 U CN207086971 U CN 207086971U CN 201720867519 U CN201720867519 U CN 201720867519U CN 207086971 U CN207086971 U CN 207086971U
- Authority
- CN
- China
- Prior art keywords
- workpiece
- base
- support
- slide rail
- movable carriage
- 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
Abstract
The utility model discloses a kind of double end bore hole lathe of long rod both ends with taper hole workpiece, belong to auto parts machinery production equipment technology.Including support, it is located at along left and right to the horizontal slide rail on support, two boring devices of horizontal slide rail left and right ends and slip in horizontal slide rail and is respectively used to fix two work piece holders at workpiece both ends, the adjacent inboard that work piece holder is located at the boring device of respective side drills for coordinating to one end of workpiece, and support, which is provided with, can drive X-axis system servomotor of the work piece holder or so to motion;Work piece holder include sliding movable carriage in the horizontal slide rail, along front and rear longitudinal slide rail on movable carriage, slide on the support and base of the base in longitudinal slide rail, the fixture location structure on front side of movable carriage, cross bar on rear side of movable carriage between base and for driving the fixture pusher cylinder of reverse before base, on base and for supporting workpiece and the fixing tool of montant for clamping workpiece.
Description
Technical field
The utility model belongs to auto parts and components production equipment technology, more particularly to a kind of long rod both ends band taper hole
The double end bore hole lathe of workpiece.
Background technology
Fig. 1 is U-shaped stock workpiece, including the vertically disposed montant of cross bar and cross bar both ends, needed on the montant at both ends plus
The consistent taper hole of work axiality.Generally the workpiece is drilled at twice by the drilling machine of routine in the prior art.It has
Processed complex, efficiency are low, bore position is positioned and fixed for each processing needs specific frock and axiality difficulty or ease are protected
The shortcomings of card.
The content of the invention
In order to solve the above problems, the utility model embodiment provides a kind of long double end of the rod both ends with taper hole workpiece
Bore hole lathe, using the lathe, workpiece clamped one time can complete the processing of both ends taper hole, and can ensure the axiality of holes,
It is with strong points, it is simple to operate.The technical scheme is as follows:
The utility model embodiment provides a kind of double end bore hole lathe of long rod both ends with taper hole workpiece, including support
1st, along left and right to the horizontal slide rail 2 on support 1, two boring devices of the left and right ends of horizontal slide rail 2 and slip located at horizontal stroke
On to slide rail 2 and it is respectively used to fix two work piece holders at the both ends of workpiece 17, the work piece holder is located at the bore hole of respective side
The adjacent inboard of device is used to coordinate to drill to one end of workpiece 17, and the support 1, which is provided with, can drive work piece holder left
The X-axis system servomotor 12 of dextrad motion.
Wherein, the work piece holder includes sliding movable carriage 11 in the horizontal slide rail 2, along front and rear to located at activity
The fixture positioning knot of longitudinal slide rail 24, the base 19 slided in longitudinal slide rail 24, the front side of movable carriage 11 on planker 11
Between structure 16, the rear side of movable carriage 11 and base 19 and for driving the fixture pusher cylinder 14 of reverse, bottom before base 19
On seat 19 and for supporting on the support 20 and base 19 of the cross bar of workpiece 17 and the montant for clamping workpiece 17 one end is consolidated
Determine frock 13, the support 20 is located at the inner side of fixing tool 13, and the fixture location structure 16 is by the montant of workpiece 17
Spots localization to be processed is at the boring head 8 of boring device, and two boring devices are symmetrical set and synchronization action, two workpiece
Fixture is symmetrical set and synchronization action.
Wherein, the fixing tool 13 is included respectively positioned at the support member 21 of the montant front and rear sides of workpiece 17 and for inciting somebody to action
Workpiece 17 acts against the ejection cylinder 22 on support member 21, and the ejection cylinder 22 is along front and rear to setting and the front end of its expansion link
Provided with ejection head.
Wherein, the support member 21 in the utility model embodiment and ejection cylinder 22 are oppositely arranged and are respectively positioned on outside base 19
Side, the support 20 are located on the inside of base 19, and it is fixed to be provided with the base 19 and between support member 21 and ejection cylinder 22
Position workpiece 17 workpiece locating slot 23, the support 20, workpiece locating slot 23 and boring head 8 can adjust to it is same along left and right to it is straight
On line.
Specifically, the support member 21 in the utility model embodiment includes the support block vertically on base 19
Mounting bracket and the detachable support block on rear side of support block mounting bracket;The inner side of the trailing flank of the support block is along a left side
The plane of dextrad, its outside are the inclined-plane with work pieces mate.
Preferably, the front and rear sides of the movable carriage 11 in the utility model embodiment are respectively provided with limitation base 19
The position limiting structure 18 moved forward and backward.
Further, the rear side of the movable carriage 11 in the utility model embodiment and it is located at the adjacent outer of fixing tool 13
Provided with wheel truing device 15.
Wherein, the boring device in the utility model embodiment include horizontal slide rail 2 on planker 7, along left and right to located at
Z axis radial servo motor 9 on boring head 8 and planker 7 on planker 7, the Z axis radial servo motor 9 are used located at the outside of boring head 8
In driving boring head 8 or so the boring head motor 10 for driving it to rotate is provided with to motion, the top of boring head 8.
Wherein, the X-axis system servomotor 12 in the utility model embodiment located at the rear side of support 1 and its by along left and right to
Screw mandrel drive movable carriage 11 or so to motion.
Wherein, the fixture location structure 16 in the utility model embodiment includes the spacing branch of the adjacent outer of longitudinal slide rail 24
Frame, along the front and rear spill spin block on limiting bracket and along left and right to the latch being inserted on spill spin block, the limiting bracket
Vertically on movable carriage 11, the outside of the latch is handle, and the spill spin block can be around its sagittal rotating shaft
Rotation;When the latch is horizontally situated, the base 19 can be pushed up to the front side of movable carriage 11 by fixture pusher cylinder 14 and used
In feeding and discharging;When the latch rotates to vertical position, the front side of the base 19 by the ejection of fixture pusher cylinder 14 extremely
Act against the position face boring head 8 to be processed of workpiece 17 on latch and thereon.
The beneficial effect brought of technical scheme that the utility model embodiment provides is:The utility model embodiment provides
A kind of double end bore hole lathe of long rod both ends with taper hole workpiece, the lathe are specific to major axis class both ends with the specific of taper hole
The special purpose machine tool of research and development of products, workpiece clamped one time can complete the processing of both ends taper hole, and can ensure the axiality of holes, pin
It is strong to property, it is simple to operate, and the lathe can use the patented product " numerical control adjust automatically boring head " of our company, substitute tradition
Taper reamer fraising, size adjusting is convenient, and process tool cost significantly reduces.In addition, the positioning of U-shaped stock workpiece, clamp,
Discharging and feeding are very convenient.
Brief description of the drawings
Fig. 1 is the structural representation of U-shaped stock workpiece;
Fig. 2 is the main view for double end bore hole lathe of the long rod both ends with taper hole workpiece that the utility model embodiment provides
Figure;
Fig. 3 is the vertical view for double end bore hole lathe of the long rod both ends with taper hole workpiece that the utility model embodiment provides
Figure;
Fig. 4 is the side view for double end bore hole lathe of the long rod both ends with taper hole workpiece that the utility model embodiment provides
Figure;
Fig. 5 is Fig. 2 partial enlarged drawing;
Fig. 6 is Fig. 3 partial enlarged drawing;
Fig. 7 is the structural representation of the fixing tool and holder combination in the present embodiment.
In figure:1 support, 2 horizontal slide rails, 3 left boring devices, 4 left work piece holders, 5 right work piece holders, 6 right boring devices,
7 plankers, 8 boring heads, 9 Z axis radial servo motors, 10 boring head motors, 11 movable carriages, 12X shaftings servomotor, 13 are consolidated
Determine frock, 14 fixture pusher cylinders, 15 wheel truing devices, 16 fixture location structures, 17 workpiece, 18 position limiting structures, 19 bases,
20 supports, 21 support members, 22 ejection cylinders, 23 workpiece locating slots, 24 longitudinal slide rails.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
Referring to Fig. 2-7, the utility model embodiment provides a kind of double end bore hole car of long rod both ends with taper hole workpiece
Bed, including support 1, along left and right to the horizontal slide rail 2 on support 1(Specifically can be by two line slide rails be arrangeding in parallel
Form), the left and right ends of horizontal slide rail 2 two boring devices(Left boring device 3 and right boring device 6)It is located at laterally with sliding
On slide rail 2 and it is respectively used to fix two work piece holders at the both ends of workpiece 17(Left work piece holder 4 and right work piece holder 5)Deng.Work
The adjacent outer that part fixture is located at the boring device of respective side drills for coordinating to one end of workpiece 17, i.e., left workpiece clamp
Tool 4 coordinates with left boring device 3 positioned at the left inner side of boring device 3 and is located at right boring for the left end of workpieces processing 17, right work piece holder 5
The inner side of aperture apparatus 6 coordinates for the right-hand member of workpieces processing 17 with right boring device 6.Support 1, which is provided with, can drive work piece holder along horizontal stroke
Respectively an X-axis system servomotor 12 is set to distinguish to slide rail 2 or so to the X-axis system servomotor 12 of motion, the left and right ends of support 1
For driving left boring device 3 and right boring device 6.
Wherein, referring to Fig. 2-7, work piece holder includes movable carriage 11, the edge being located at along left and right to slip in horizontal slide rail 2
The front and rear longitudinal slide rail 24 on the upper surface of movable carriage 11(Specifically can be by two line slide rail be arrangeding in parallel structures
Into), along it is front and rear to the base 19 slided in the longitudinal slide rail 24, the fixture location structure 16 of the front side of movable carriage 11, along preceding
It is backward between the rear side of movable carriage 11 and base 19 and for drive the fixture pusher cylinder 14 of reverse before base 19,
On base 19 and for supporting on the support 20 and base 19 of the cross bar of workpiece 17 and the montant for clamping workpiece one end is consolidated
Determine frock 13 etc..Support 20 is located at the inner side of fixing tool 13, and fixture location structure 16 is located at the outside of longitudinal slide rail 24 by work
At the boring head 8 of boring device, two boring devices are symmetrical set and together spots localization to be processed on the montant of part 17
Step acts, and two work piece holders are symmetrical set and synchronization action.
Wherein, referring to Fig. 7, fixing tool 13 is included respectively positioned at the support member 21 and use of the montant front and rear sides of workpiece 17
In workpiece 17 to act against to ejection cylinder 22 on support member 21 etc., ejection cylinder 22 is along front and rear to setting and before its expansion link
End is provided with ejection head(For ejection montant), support member 21 and ejection head need to ensure that boring head 8 can be to the position to be processed of workpiece 17
It is processed.
Wherein, referring to Fig. 7, support member 21 and ejection cylinder 22 in the utility model embodiment are oppositely arranged and are respectively positioned on
The outside of base 19, support 20 are located at the inner side of base 19 and between support member 21 and ejection cylinders 22, on base 19 and be located at
The workpiece locating slot 23 of positioning workpiece 17 end is provided between support member 21 and ejection cylinder 22(Its end position when workpiece 17 is processed
In workpiece locating slot 23, it is specifically as follows along the front and rear bar-shaped trough to setting), workpiece locating slot 23 is with support 20 positioned at same
One along left and right to straight line on, meanwhile, support 20, workpiece locating slot 23 and boring head 8 can adjust to(Pass through fixture pusher cylinder 14
With fixture location structure 16)It is same along left and right to straight line on.
Specifically, referring to Fig. 7, the support member 21 in the utility model embodiment is included vertically on base 19
Support block mounting bracket and detachable(It is bolted, then goes for the work of different size by changing support block
Part is processed)Support block on rear side of support block mounting bracket etc..Support block is the class rectangle block structure along left and right to setting,
Its leading flank and left and right side are plane, the inner side of trailing flank be along left and right to plane, its outside is and work pieces mate
Inclined-plane(It is outer after oblique).
Preferably, referring to Fig. 2-6, the front and rear sides of the movable carriage 11 in the utility model embodiment are respectively provided with
The position limiting structure 18 that limitation base 19 moves forward and backward.Position limiting structure 18, which is specifically as follows, to be arranged between two longitudinal slide rails 24
Block(Higher than base 19).
Further, referring to Fig. 2-6, the rear side of the movable carriage 11 in the utility model embodiment and it is located at fixing tool
13 adjacent outers are provided with wheel truing device 15 and are used to be modified boring head 8.Wheel truing device 15 includes dragging located at activity
Mounting bracket on the rear side of plate 11, match somebody with somebody to the amendment axle rotated in mounting bracket, amendment axle front end and with boring head 8 along front and rear
Amendment servomotor on the amendment emery wheel and mounting bracket of conjunction and for driving amendment axle etc., its structure is the technology of this area
Known to personnel.
Wherein, referring to Fig. 2 and 3, the boring device in the utility model embodiment includes planker 7 in horizontal slide rail 2, edge
Left and right is to the boring head 8 on planker 7 and along left and right to Z axis radial servo motor 9 on planker 7 etc..Wherein, this implementation
Boring head 8 in example can use accurate digital control boring head disclosed in the patent of Application No. 200810048031.9.Z axis radial servo
Motor 9 is used to drive located at the outside of boring head 8(Pass through axle or connecting rod etc.)Boring head 8 is along left and right to moving, along left and right above boring head 8
To provided with the boring head motor 10 for driving it to rotate.
Wherein, referring to Fig. 2 and 3, X-axis system servomotor 12 in the utility model embodiment located at the rear side of support 1 and its
By along left and right to screw mandrel drive movable carriage 11 or so to moving.
Wherein, referring to Fig. 2-6, it is adjacent outer that the fixture location structure 16 in the utility model embodiment includes longitudinal slide rail 24
The limiting bracket of side, along the front and rear spill spin block on limiting bracket and along left and right to latch being inserted on spill spin block etc..
For limiting bracket vertically on movable carriage 11, the outside of latch is handle, and its inner side is circular cone mesa structure.Rotation
Block can make latch horizontally and vertically around its sagittal rotating shaft rotation, and it is specially rectangular block.Wherein, latch is horizontally situated
When, it is inner(Circular cone mesa structure)Above base 19(Simultaneously positioned at the outside of fixed work 13), base 19 can be by pressing from both sides
Tool pusher cylinder 14 is pushed up to the front side of movable carriage 11(Pass through below from latch)For feeding and discharging;Latch rotates to vertical position
When putting, its lower end(Circular cone mesa structure)Positioned at the front of base 19, the front side of base 19 is by the ejection of fixture pusher cylinder 14 to top
Lean against the position face boring head 8 to be processed of the workpiece 17 on rear side of latch above and thereon.
The utility model embodiment provides a kind of double end bore hole lathe of long rod both ends with taper hole workpiece, and the lathe is
The special purpose machine tool researched and developed specifically for specific products of the major axis class both ends with taper hole, workpiece clamped one time can complete both ends taper hole
Processing, and the axiality of holes can be ensured, it is with strong points, it is simple to operate, and the lathe can use the patent of our company
Product " numerical control adjust automatically boring head ", traditional taper reamer fraising is substituted, size adjusting is convenient, and process tool cost significantly drops
It is low.In addition, the positioning of U-shaped stock workpiece, clamp, discharging and feeding it is very convenient.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (8)
- A kind of 1. double end bore hole lathe of long rod both ends with taper hole workpiece, it is characterised in that including support (1), along left and right to Two boring devices of horizontal slide rail (2), horizontal slide rail (2) left and right ends on support (1) and slip are located at laterally sliding On rail (2) and it is respectively used to fix two work piece holders at workpiece (17) both ends, the work piece holder is located at the bore hole of respective side The adjacent inboard of device is used to coordinate to drill to one end of workpiece (17), and the support (1), which is provided with, can drive workpiece clamp X-axis system servomotor (12) of the tool left and right to motion;The work piece holder includes sliding movable carriage (11) in the horizontal slide rail (2), along front and rear to located at movable carriage (11) base (19) of longitudinal slide rail (24), slip in longitudinal slide rail (24), the fixture on front side of movable carriage (11) on Location structure (16), on rear side of movable carriage (11) between base (19) and being used to driving the fixture of reverse before base (19) In pusher cylinder (14), base (19) and for supporting on the support (20) and base (19) of the cross bar of workpiece (17) and for pressing from both sides The fixing tool (13) of the montant of clamping of workpieces (17) one end, the support (20) are located at the inner side of fixing tool (13), the folder Has location structure (16) by the spots localization to be processed on the montant of workpiece (17) in boring head (8) place of boring device, two borings Aperture apparatus is symmetrical set and synchronization action, and two work piece holders are symmetrical set and synchronization action;The fixing tool (13) is included respectively positioned at the support member (21) of the montant front and rear sides of workpiece (17) and for by work Part (17) acts against the ejection cylinder (22) on support member (21), and the ejection cylinder (22) is along front and rear to setting and its expansion link Front end be provided with ejection head.
- 2. double end bore hole lathe of the long rod both ends according to claim 1 with taper hole workpiece, it is characterised in that the branch Support member (21) and ejection cylinder (22) are oppositely arranged and are respectively positioned on the outside of base (19), and the support (20) is located in base (19) Side, the workpiece positioning of positioning workpiece (17) is provided with the base (19) and between support member (21) and ejection cylinder (22) Groove (23), the support (20), workpiece locating slot (23) and boring head (8) can adjust to it is same along left and right to straight line on.
- 3. double end bore hole lathe of the long rod both ends according to claim 2 with taper hole workpiece, it is characterised in that the branch Support member (21) includes the support block mounting bracket vertically on base (19) and is detachably located at support block installation branch Support block on rear side of frame;The inner side of the trailing flank of the support block be along left and right to plane, its outside be and work pieces mate Inclined-plane.
- 4. double end bore hole lathe of the long rod both ends according to claim 1 with taper hole workpiece, it is characterised in that the work The front and rear sides of dynamic planker (11) are respectively provided with the position limiting structure (18) that limitation base (19) moves forward and backward.
- 5. double end bore hole lathe of the long rod both ends according to claim 1 with taper hole workpiece, it is characterised in that the work Move the rear side of planker (11) and be provided with wheel truing device (15) positioned at fixing tool (13) adjacent outer.
- 6. double end bore hole lathe of the long rod both ends according to claim 1 with taper hole workpiece, it is characterised in that the boring Aperture apparatus includes planker (7) in horizontal slide rail (2), along left and right to the Z on the boring head (8) and planker (7) on planker (7) Axial and radial servomotor (9), the Z axis radial servo motor (9) be used on the outside of the boring head (8) driving boring head (8) left and right to Motion, boring head (8) top are provided with the boring head motor (10) for driving it to rotate.
- 7. double end bore hole lathe of the long rod both ends according to claim 1 with taper hole workpiece, it is characterised in that the X Shafting servomotor (12) on rear side of the support (1) and its by along left and right to screw mandrel come drive movable carriage (11) left and right to Motion.
- 8. double end bore hole lathe of the long rod both ends according to claim 1 with taper hole workpiece, it is characterised in that the folder Has the limiting bracket of location structure (16) including longitudinal slide rail (24) adjacent outer, along the front and rear rotation on limiting bracket Block and along left and right to the latch being inserted on spill spin block, the limiting bracket is vertically on movable carriage (11), institute The outside for stating latch is handle, and the spill spin block can rotate around its sagittal rotating shaft;When the latch is horizontally situated, institute State base (19) and can be pushed up by fixture pusher cylinder (14) to movable carriage (11) front side and be used for feeding and discharging;The latch rotation During to vertical position, the front side of the base (19) is by fixture pusher cylinder (14) ejection to the work acted against on latch and thereon The position face boring head (8) to be processed of part (17).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720867519.9U CN207086971U (en) | 2017-07-18 | 2017-07-18 | A kind of double end bore hole lathe of long rod both ends with taper hole workpiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720867519.9U CN207086971U (en) | 2017-07-18 | 2017-07-18 | A kind of double end bore hole lathe of long rod both ends with taper hole workpiece |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207086971U true CN207086971U (en) | 2018-03-13 |
Family
ID=61545237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720867519.9U Expired - Fee Related CN207086971U (en) | 2017-07-18 | 2017-07-18 | A kind of double end bore hole lathe of long rod both ends with taper hole workpiece |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207086971U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110076369A (en) * | 2019-03-07 | 2019-08-02 | 宁波润轴汽配有限公司 | A kind of automobile torsion bar spring automatic center drilling machine |
CN110842567A (en) * | 2019-12-02 | 2020-02-28 | 金华愉悦机械科技有限公司 | Machine tool for manufacturing internal hexagonal wrench |
CN111468899A (en) * | 2020-04-21 | 2020-07-31 | 扬州黎明钻具有限公司 | Laser hardening process for thread surface of trenchless drill rod joint |
-
2017
- 2017-07-18 CN CN201720867519.9U patent/CN207086971U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110076369A (en) * | 2019-03-07 | 2019-08-02 | 宁波润轴汽配有限公司 | A kind of automobile torsion bar spring automatic center drilling machine |
CN110842567A (en) * | 2019-12-02 | 2020-02-28 | 金华愉悦机械科技有限公司 | Machine tool for manufacturing internal hexagonal wrench |
CN111468899A (en) * | 2020-04-21 | 2020-07-31 | 扬州黎明钻具有限公司 | Laser hardening process for thread surface of trenchless drill rod joint |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103962602B (en) | numerical control multi-shaft gantry drilling and milling machine tool | |
CN207086971U (en) | A kind of double end bore hole lathe of long rod both ends with taper hole workpiece | |
CN104308536B (en) | A kind of automatic milling machine | |
US9162289B2 (en) | Machine tool apparatus and method | |
CN205968189U (en) | Cutting chamfer all -in -one | |
CN205437779U (en) | Compound lathe drilling equipment of section of thick bamboo wall drilling | |
CN103231247A (en) | Rotating platform type multi-head numerical control drilling and tapping machine tool | |
CN205380432U (en) | Compound lathe of section of thick bamboo wall drilling | |
CN203221338U (en) | Turntable type multipoint numerical control drilling and tapping machine | |
CN101508033A (en) | Double-magazine double main-shaft machine tool for processing two-end holes of crankshaft | |
CN105500007A (en) | Rotary motorcycle aluminum alloy wheel hub drilling-cutting all-in-one machine | |
CN204160240U (en) | Numerical control horizontal comprehensive machine | |
CN109202130A (en) | A kind of double main shaft drilling machines | |
CN109759631B (en) | High-speed positioning slot milling machine | |
CN208303928U (en) | A kind of drilling machine | |
CN201357245Y (en) | Three-mainshaft horizontal digital controlled drilling machine | |
CN203330684U (en) | Drilling and milling combined machine tool for automobile axle housing | |
CN105234708B (en) | Slip shaft yoke type part milling end face bores two ends centre bore fixture | |
CN204094469U (en) | A kind of automatic milling machine | |
CN207642804U (en) | A kind of horizontal digital-control drilling machine suitable for electric connector processing | |
CN203245403U (en) | Valve high-speed numerically-controlled drilling machine | |
CN206747659U (en) | A kind of full-automatic double-ended billot machine | |
CN204321245U (en) | Horizontal lathe bore hole frock | |
CN208438059U (en) | Two-sided cutter head automatic machining lathe | |
CN207326086U (en) | A kind of broach(ing) machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20190718 |
|
CF01 | Termination of patent right due to non-payment of annual fee |