CN108655777A - A kind of Tower crane standard section main chord drilling tool - Google Patents
A kind of Tower crane standard section main chord drilling tool Download PDFInfo
- Publication number
- CN108655777A CN108655777A CN201810465161.6A CN201810465161A CN108655777A CN 108655777 A CN108655777 A CN 108655777A CN 201810465161 A CN201810465161 A CN 201810465161A CN 108655777 A CN108655777 A CN 108655777A
- Authority
- CN
- China
- Prior art keywords
- drilling tool
- main chord
- standard section
- flatbed
- tooling base
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of devices, and more particularly, to a kind of drilling tool for Tower crane standard section main chord, it belongs to technical field of engineering machinery.The invention is used for the processing of main chord of standard section hole system, the drilling tool includes upright drill, contour bearing, flatbed tooling base, interchanged type drilling tool and bores boring integrated knife, it is processed for main chord of standard section hole system, it is reasonable in design, can make main chord of standard section hole position processing when feeding quickly position, reasonable structure, stability height, securely and reliably, it is at low cost, it can be used for multiple times, meet the tooling of same type different specifications, the drilling tool for the processing of Tower crane standard section main chord hole position.
Description
Technical field
The present invention relates to a kind of devices, more particularly, to a kind of drillman for Tower crane standard section main chord
Dress, it belongs to technical field of engineering machinery.
Background technology
Lifting equipment is widely used in modern industry, civil high-rise buildings and electric power, water conservancy and bridge construction etc.
Field, and derrick crane is wherein the most widely used one kind.With industry technology development and product renewing, tower lifting
The product category of machine continues to develop, and each producer develops the derrick crane of different size according to own situation.
And standard knot is an important component of derrick crane, the form according to two section standard knot connections is different, can divide
For connector sleeve formal standard section and fish platee formal standard section.With the development of existing market, the demand of building industrialization, big ton
The modular architectural structural of position has become normality, and the derrick crane of large-tonnage is needed to carry out meet demand.And fish platee form
Standard knot is exactly the standard knot that large-tonnage derrick crane is most widely used.
The fish platee formal standard section appearance and size of each producer is different, but structure be it is consistent, it is main
Processing technology is first angle steel reinforcement, the processing of angle steel end face, fish platee welding, the processing of main chord hole position, whole welding forming.It is main
The processing of chord member hole position is a wherein important ring, is related to the assembly precision of final fish platee formal standard section.It is existing at present to add
Work technique is two kinds, and a kind of individually to be processed using digital control special machine, cost is higher.It is another then be scribing line perforation processing, but product
Precision is relatively low.And existing market is in great demand, needs us that main chord of standard section drilling tool can be rapidly completed and makes to meet
Production requirement, while also adapting to different product.
Invention content
In view of the foregoing, it is an object to overcome above-mentioned deficiency existing in the prior art, and provide a kind of
Tower crane standard section main chord drilling tool, the tooling should be reasonable in design, can make main chord of standard section hole position
When processing feeding quickly position, reasonable structure, stability it is high, it is securely and reliably, at low cost, can be used for multiple times, meet mutually similar
The tooling of type different specifications, the drilling tool for the processing of Tower crane standard section main chord hole position.
Technical solution is used by the present invention solves the above problems：A kind of Tower crane standard section main chord brill is provided
Hole tool is used for the processing of main chord of standard section hole system, which is characterized in that the drilling tool includes upright drill, contour branch
Seat, flatbed tooling base, interchanged type drilling tool and brill boring integrated knife, flatbed tooling base are horizontally set on upright drill
On workbench, several contour bearings of upright drill workbench left and right settings are fixed with flatbed tooling base, it is ensured that the tooling
Pedestal upper end is horizontal, and vertical with upright drill, and interchanged type drilling tool is provided with above flatbed tooling base, puts down
Bench-type tooling base is for fixing interchanged type drilling tool, interchanged type drilling tool fixed standard section main chord, and in vertical drilling
Setting 1 processes brill boring integrated cutter for main chord of standard section hole system on bed main shaft.
Preferably, being provided with 7 location holes above flatbed tooling base of the present invention altogether, 7 location holes are flat
Bench-type tooling base transverse center is equidistantly uniformly distributed, and steel bushing is arranged in the location hole, it is ensured that does not repeatedly damage flatbed when installation
Tooling base.Meanwhile respectively setting 3 connects location holes for flatbed tooling base left and right ends, expands and lengthens so as to successive stage
Stroke.Further, connection interchanged type drilling tool and the bolt hole with its respective numbers are provided on flatbed tooling base,
Installation to meet interchanged type drilling tool compresses.
Preferably, the interchanged type drilling tool is equidistantly set along center line there are six hole, wherein left end hole and most right
The pitch-row at end is fixed value, and the pitch-row of each main chord of standard section corresponds to a kind of interchanged type drilling tool, to meet different marks
The length requirement of quasi- section main chord.
Preferably, the interchanged type drilling tool is arranged in flatbed tooling base left end, interchanged type drilling tool
Between four holes be accurately positioned on flatbed tooling base by 4 sets of location holes, steel bushing and alignment pin, make interchanged type drillman
It fills rightmost side hole and vertical drilling spindle center to overlap, while 12 sets of pressing plates and spiral shell by being arranged on interchanged type drilling tool
Bolt is fixed in flatbed tooling base；Further include main chord locating shaft 27, which is arranged in interchanged type
On drilling tool 22,26 left end interior outer fish plate 11 with holes of standard section section main chord to be processed is accurately positioned in interchanged type and is bored
On hole tool 22.When processing the main chord of standard section of different size, only needing to change interchanged type drilling tool can realize, exchange journey
Degree is high.
Preferably, the interchanged type drilling tool is additionally provided with 4 sets of clamping mechanisms in left and right ends, clamp system packet is often covered
V-type clamping head is included, fixed high screw plate and moving screw are living after moving screw is by surely high screw plate, then by V-type clamping head
After dynamic screw rod rotation, V-type clamping head energy automatic capturing main chord angle steel side center, and clamped.
Preferably, the centre-height of the fixed high screw plate is consistent with main chord of standard section angle steel center.
Preferably, the V-type clamping head often covers 1, and fixed high screw plate 1, moving screw 1, it is fixed that moving screw passes through
It is connected with V-type clamping head after high screw plate, V-type clamping head can move left and right..
Preferably, the interchanged type drilling tool is equipped with two sets of jacking demoulding mechanisms, often set jacking ingot stripper at middle part
Structure includes rolling bearing, jacks bearing block, fixed pin shaft, reduction box, rotary screw and rotating wheel, rolling bearing pass through fixation
Axis pin is mounted on jacking bearing block, and rotating wheel drives rotary screw rotation, then drives reduction box to move so that jacking bearing block
It moves up and down.Rolling bearing is mounted on by fixed pin shaft on jacking bearing block, and rotation wheel drives rotary screw rotation, then
Reduction box is driven to move so that jacking bearing block moves up and down.
Preferably, rolling bearing is equipped with 2 sets altogether in the jacking demoulding mechanism, kept after being installed on jacking bearing block
Certain distance can smoothly jack up main chord of standard section, and main chord is enable to be moved left and right on rolling bearing.
Preferably, the helical screw and interchanged type drilling tool are equipped with plane bearing and locknut when installing, ensure spiral shell
Rotation lead screw does not generate left and right displacement in rotary course, and the distance being transmitted on reduction box will not change.
Compared with prior art, the present invention haing the following advantages and effect：
1, simple and reasonable, positioning and clamping is convenient, easy to make, and stability is high, and work efficiency is high, be suitable for common production and
Assembly line produces main chord of standard section in batches；
2, device is adaptable, and different interchanged type drilling tools can be replaced according to different product size, corresponding to complete the production
Qualified main chord of standard section, meets same type different specifications tooling.
3, process is simpler, because having used brill boring integrated knife, only an aperture need to be adjusted in process, can batch
Production, workpiece replacing are not required to tool changing in the process and in process, and work efficiency is clearly.
Description of the drawings
Fig. 1 is the positive structure diagram of fish platee formal standard section main chord in the embodiment of the present invention.
Fig. 2 is the main structure diagram of the embodiment of the present invention.
Fig. 3 is the overlooking structure diagram of the flatbed tooling base of the embodiment of the present invention.
Fig. 4 is the overlooking structure diagram of the interchanged type drilling tool of the embodiment of the present invention.
Fig. 5 is the side structure schematic view of clamping mechanism in interchanged type drilling tool of the present invention.
Fig. 6 is the side structure schematic view that demoulding mechanism is jacked in interchanged type drilling tool of the present invention.
In figure：It is interior outer fish plate 11 with holes, main chord steel angle structure 12, contour bearing 21, interchanged type drilling tool 22, flat
Bench-type tooling base 23, bore boring integrated knife 24, upright drill 25, standard section section main chord 26,27 steel bushing 31 of main chord locating shaft,
Isometry block 41, pressing plate 42, positioning steel bushing 43, alignment pin 44, jacking demoulding mechanism 45, positioning side are by 46, clamping mechanism 47, V
Type clamping head 51, fixed high screw plate 52, moving screw 53, rolling bearing 61, jacking bearing block 63, fixed pin shaft 62, reduction box
64, rotary screw 65, plane bearing 66, locknut 67, rotating wheel 68.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
Referring to Fig. 1 to Fig. 6, a kind of Tower crane standard section main chord drilling tool includes：Upright drill 25, contour branch
Seat 21, interchanged type drilling tool 22, bores 24 main chord locating shaft 27 of boring integrated knife and to be processed at flatbed tooling base 23
Standard section section main chord 26, standard section section main chord 26 is made of interior outer fish plate 11 with holes, main chord steel angle structure 12.It is flat
Bench-type tooling base is for fixing interchanged type drilling tool, interchanged type drilling tool fixed standard section main chord, main chord positioning
Axis 27 is used for localization criteria section main chord.One flatbed tooling base 23 is set on the workbench of the upright drill 25, is stood
3 contour bearings 21 are arranged in formula Drilling machines bench or so altogether, it is ensured that told tooling base upper end is horizontal, and hangs down with upright drill
Directly.Meanwhile 1 set of interchanged type drilling tool 22 is provided with above flatbed tooling base 23, and in the main shaft of upright drill 25
Upper setting 1 processes brill boring integrated cutter 24 for 26 hole system of main chord of standard section.
23 top of flatbed tooling base of the present invention is provided with 7 location holes altogether, and 7 location holes are in flatbed tooling
Pedestal transverse center is equidistantly uniformly distributed, and steel bushing 31 is arranged in the location hole, it is ensured that does not repeatedly damage flatbed tooling bottom when installation
Seat.Meanwhile respectively setting 3 connects location holes to 23 left and right ends of flatbed tooling base, so that successive stage expands extended stroke.
Further, it is provided with 12 bolts hole corresponding with interchanged type drilling tool on flatbed tooling base 23, is exchanged with meeting
The installation of type drilling tool compresses.
The interchanged type drilling tool 22 is equidistantly set along center line there are six hole, the wherein pitch-row in left end hole and right end
Pitch-row for fixed value, each main chord of standard section corresponds to a kind of interchanged type drilling tool 22, to meet various criterion section master
The length requirement of chord member.
The setting of interchanged type drilling tool 22 is four among 23 left end of flatbed tooling base, interchanged type drilling tool
Hole is accurately positioned in by 4 sets of location holes, steel bushing 43 and alignment pin 44 on flatbed tooling base 23, and interchanged type drillman is made
It fills 22 rightmost side holes and 25 main-shaft core of upright drill overlaps, while 12 sets of pressing plates by being arranged on interchanged type drilling tool
It is fixed in flatbed tooling base with bolt.When processing the main chord of standard section ontology 26 of different size, only need integrally more
Changing interchanged type drilling tool 22 can realize, interchange level is high.
The main chord locating shaft 27 is arranged on interchanged type drilling tool 22, by standard section section main chord 26 to be processed
Left end interior outer fish plate 11 with holes is accurately positioned on interchanged type drilling tool 22, it is ensured that after boring 24 processing of boring integrated knife, pitch-row
Reach requirement.
Interchanged type drilling tool 22 of the present invention is equipped with 4 sets of clamping mechanisms 47 altogether in left and right ends, often covers clamp system
It is divided into V-type clamping head 51, fixed high screw plate 52, moving screw 53.After moving screw 53 is by high screw plate 52 surely, then pass through V
Type clamping head 51, after moving screw 53 rotates, 51 energy automatic capturing main chord angle steel side center of V-type clamping head, and clamped.
The centre-height of fixed high screw plate 52 of the present invention is consistent with main chord of standard section angle steel center.Also, V-type
Clamping head 51 often covers 1, and fixed high screw plate 52 often covers 1, and moving screw 53 often covers 1.Moving screw 53 passes through surely high screw hole
It is connected with V-type clamping head 51 after plate 52, V-type clamping head 51 can move left and right.
Interchanged type drilling tool 22 of the present invention is arranged with 2 sets of jacking demoulding mechanisms 44 at middle part, and often set jacking is de-
Mold mechanism 44 includes 2 sets of rolling bearings, 61,1 set of jacking 63,1 set of bearing block, 62,1 set of fixed pin shaft, 64,1 set of reduction box rotation
65,1 sets of lead screw, 66,1 sets of plane bearing, 67,1 sets of rotating wheels 68 of locknut.Rolling bearing 61 is mounted on jacking by fixed pin shaft 62
On bearing block 63, rotating wheel 68 drives rotary screw 65 to rotate, then drives reduction box 64 to move so that about 63 bearing block of jacking
It is mobile.
Jacking demoulding mechanism 44 of the present invention, set rotating wheel 68 drives rotary screw 65 to rotate, then drives deceleration
After case 64 moves so that jacking the upward jack-up of bearing block 63, after standard section section main chord 26 to be processed is detached from isometry block 41,
Standard section section main chord 26 to be processed can be moved on to home, then can be opened with quick-replaceable standard section section main chord 26
Begin next working cycles.
Rolling bearing 61 is equipped with 2 sets altogether in jacking demoulding mechanism 44 of the present invention, after being installed on jacking bearing block 63
Certain distance is kept, can smoothly jack up main chord of standard section ontology 26, and main chord of standard section ontology 26 is enable to roll
It is moved left and right on bearing 61.
It is equipped with plane bearing 66 and locknut 67 when helical screw 65 and interchanged type drilling tool 22 installation of the present invention, is protected
Card helical screw 65 does not generate left and right displacement in rotary course, and the distance being transmitted on reduction box 64 will not change.
Brill boring integrated knife 24 of the present invention is that cutter is transformed in U-shaped brill, and boring upper end in U is provided with one fine boring cutter to meet
Aperture requires.Work does not need to change cutter after starting and unloads knife, improves working efficiency.
24 bore diameter of brill boring integrated knife of the present invention is smaller 0.5mm than main chord of standard section finished hole, and made allowance is to boring
Knife right boring, it is ensured that aperture is qualified.
By above-mentioned elaboration, those skilled in the art can implement.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Claiming etc. can be different, described in this specification above content is only to structure of the invention example explanation.It is all according to
The equivalence changes or simple change done according to the structure, feature and principle described in inventional idea of the present invention, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do described specific embodiment various
The modify or supplement or adopt similar mode of various kinds substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (10)
1. a kind of Tower crane standard section main chord drilling tool, is used for the processing of main chord of standard section hole system, feature exists
In the drilling tool includes upright drill, contour bearing, flatbed tooling base, interchanged type drilling tool and bores boring one
Knife, flatbed tooling base are horizontally set on upright drill workbench, several contour branch of upright drill workbench left and right settings
Seat is fixed with flatbed tooling base, it is ensured that the tooling base upper end is horizontal, and vertical with upright drill, and in flatbed
Interchanged type drilling tool is provided with above tooling base, flatbed tooling base is for fixing interchanged type drilling tool, interchanged type
Drilling tool fixed standard section main chord, and brill boring integrated cutter is used for the main string of standard knot by setting 1 on vertical drilling spindle
Rod aperture system processes.
2. a kind of Tower crane standard section main chord drilling tool according to claim 1, it is characterised in that：It is described flat
7 location holes are provided with above bench-type tooling base altogether, 7 location holes are equidistantly uniformly distributed in flatbed tooling base transverse center,
Steel bushing is set in the location hole, and respectively setting 3 connects location holes, flatbed tooling base for flatbed tooling base left and right ends
On be provided with the connection interchanged type drilling tool and bolt hole with its respective numbers.
3. a kind of Tower crane standard section main chord drilling tool according to claim 1, it is characterised in that：It is described mutual
Drilling tool of remodeling equidistantly is set along center line there are six hole, and wherein the pitch-row of left end hole and right end is fixed value, each
The pitch-row of main chord of standard section corresponds to a kind of interchanged type drilling tool.
4. a kind of Tower crane standard section main chord drilling tool according to claim 2 or 3, it is characterised in that：Institute
Interchanged type drilling tool setting four holes among flatbed tooling base left end, interchanged type drilling tool are stated to position by 4 sets
Hole, steel bushing and alignment pin are accurately positioned on flatbed tooling base, make interchanged type drilling tool rightmost side hole and vertical drilling
Bed main-shaft core overlaps, while 12 sets of pressing plates and bolt by being arranged on interchanged type drilling tool are fixed in flatbed
Tooling base.
5. a kind of Tower crane standard section main chord drilling tool according to claim 1, it is characterised in that：It is described mutual
Drilling tool of remodeling is additionally provided with 4 sets of clamping mechanisms in left and right ends, and it includes V-type clamping head often to cover clamp system, fixed high screw plate
And moving screw, after moving screw is by surely high screw plate, then pass through V-type clamping head, after moving screw rotation, V-type clamping head
Energy automatic capturing main chord angle steel side center, and clamped；Further include main chord locating shaft 27, which sets
It sets on interchanged type drilling tool 22,26 left end interior outer fish plate 11 with holes of standard section section main chord to be processed is accurately positioned
On interchanged type drilling tool 22.
6. a kind of Tower crane standard section main chord drilling tool according to claim 5, it is characterised in that：It is described fixed
The centre-height of high screw plate is consistent with main chord of standard section angle steel center.
7. a kind of Tower crane standard section main chord drilling tool according to claim 5, it is characterised in that：The V
Type clamping head often covers 1, fixed high screw plate 1, moving screw 1, moving screw by after surely high screw plate with V-type clamping head
It is connected, V-type clamping head can move left and right.
8. a kind of Tower crane standard section main chord drilling tool according to claim 1, it is characterised in that：It is described mutual
Drilling tool of remodeling is equipped with two sets of jacking demoulding mechanisms at middle part, and often set jacking demoulding mechanism includes rolling bearing, jacks axis
Bearing, fixed pin shaft, reduction box, rotary screw and rotating wheel, rolling bearing are mounted on by fixed pin shaft on jacking bearing block,
Rotating wheel drives rotary screw rotation, then drives reduction box to move so that jacking bearing block moves up and down.
9. a kind of Tower crane standard section main chord drilling tool according to claim 8, it is characterised in that：The top
It rises rolling bearing in demoulding mechanism and is equipped with 2 sets altogether, keep certain distance after being installed on jacking bearing block, can smoothly jack up
Main chord of standard section, and main chord is enable to be moved left and right on rolling bearing.
10. a kind of Tower crane standard section main chord drilling tool according to claim 8, it is characterised in that：It is described
Helical screw and interchanged type drilling tool are equipped with plane bearing and locknut when installing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465161.6A CN108655777B (en) | 2018-05-16 | 2018-05-16 | Drilling tool for main chord member of standard knot of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810465161.6A CN108655777B (en) | 2018-05-16 | 2018-05-16 | Drilling tool for main chord member of standard knot of tower crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108655777A true CN108655777A (en) | 2018-10-16 |
| CN108655777B CN108655777B (en) | 2020-05-01 |
Family
ID=63779457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810465161.6A Active CN108655777B (en) | 2018-05-16 | 2018-05-16 | Drilling tool for main chord member of standard knot of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108655777B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355587A (en) * | 2019-06-11 | 2019-10-22 | 昌河飞机工业（集团）有限责任公司 | A kind of frock clamp and method for processing solder type strut |
| CN110524022A (en) * | 2019-09-26 | 2019-12-03 | 安徽江淮专用汽车有限公司 | A kind of drilling equipment for equidistantly organizing hole for drilling |
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| JPS58171238A (en) * | 1983-02-21 | 1983-10-07 | Toshiba Mach Co Ltd | Setting device of heavy weight tool |
| CN2882859Y (en) * | 2006-03-15 | 2007-03-28 | 周兴亮 | Digital controlled boring machine |
| CN103752904A (en) * | 2014-01-14 | 2014-04-30 | 中联重科股份有限公司 | Drill jig structure and drilling method of standard knot main chord member |
| CN204471034U (en) * | 2014-12-30 | 2015-07-15 | 湖南大汉至诚建设机械有限公司 | A kind of main chord positioning tool |
| CN204621441U (en) * | 2015-04-16 | 2015-09-09 | 山东易林机器人技术有限公司 | Building hoist standard knot frame positioning tool |
| CN205764050U (en) * | 2016-05-24 | 2016-12-07 | 江苏正兴建设机械有限公司 | Standard section main limb bar drill hole tool |
| CN208391070U (en) * | 2018-05-16 | 2019-01-18 | 浙江省建设机械集团有限公司 | A kind of Tower crane standard section main chord drilling tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58171238A (en) * | 1983-02-21 | 1983-10-07 | Toshiba Mach Co Ltd | Setting device of heavy weight tool |
| CN2882859Y (en) * | 2006-03-15 | 2007-03-28 | 周兴亮 | Digital controlled boring machine |
| CN103752904A (en) * | 2014-01-14 | 2014-04-30 | 中联重科股份有限公司 | Drill jig structure and drilling method of standard knot main chord member |
| CN204471034U (en) * | 2014-12-30 | 2015-07-15 | 湖南大汉至诚建设机械有限公司 | A kind of main chord positioning tool |
| CN204621441U (en) * | 2015-04-16 | 2015-09-09 | 山东易林机器人技术有限公司 | Building hoist standard knot frame positioning tool |
| CN205764050U (en) * | 2016-05-24 | 2016-12-07 | 江苏正兴建设机械有限公司 | Standard section main limb bar drill hole tool |
| CN208391070U (en) * | 2018-05-16 | 2019-01-18 | 浙江省建设机械集团有限公司 | A kind of Tower crane standard section main chord drilling tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355587A (en) * | 2019-06-11 | 2019-10-22 | 昌河飞机工业（集团）有限责任公司 | A kind of frock clamp and method for processing solder type strut |
| CN110524022A (en) * | 2019-09-26 | 2019-12-03 | 安徽江淮专用汽车有限公司 | A kind of drilling equipment for equidistantly organizing hole for drilling |
| CN110524022B (en) * | 2019-09-26 | 2024-04-26 | 安徽江淮专用汽车有限公司 | Drilling device for drilling equidistant holes |
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| Publication number | Publication date |
|---|---|
| CN108655777B (en) | 2020-05-01 |
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Address after: NO.175, Chaohui Road, Xiacheng District, Hangzhou, Zhejiang 310000 Patentee after: Zhejiang Construction Engineering Machinery Group Co.,Ltd. Address before: NO.175, Chaohui Road, Xiacheng District, Hangzhou, Zhejiang 310000 Patentee before: ZHEJIANG CONSTRUCTION MACHINERY GROUP Co.,Ltd. |
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