CN108856601A - A kind of single mesh picking-up device and shield duct piece steel reinforcement cage welding equipment - Google Patents
A kind of single mesh picking-up device and shield duct piece steel reinforcement cage welding equipment Download PDFInfo
- Publication number
- CN108856601A CN108856601A CN201810628913.6A CN201810628913A CN108856601A CN 108856601 A CN108856601 A CN 108856601A CN 201810628913 A CN201810628913 A CN 201810628913A CN 108856601 A CN108856601 A CN 108856601A
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- Prior art keywords
- picking
- fixing seat
- single mesh
- vertical
- horizontal
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 230000002787 reinforcement Effects 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 238000003466 welding Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
- B21F27/125—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching individual stirrups to longitudinal wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The present invention relates to shield duct piece steel reinforcement cage welding technology field more particularly to a kind of single mesh picking-up devices and shield duct piece steel reinforcement cage welding equipment.Single mesh picking-up device includes mounting rack, at least two picking-up components are arranged at intervals on mounting rack, each picking-up component includes horizontal fixing seat, horizontal movable base, the first driving mechanism, vertical fixing seat, vertical shift seat, the second driving mechanism and holds up pawl.Single mesh picking-up device provided by the invention can shorten the driving trip of vertical driving mechanism, reduce the model requirement to vertical driving mechanism, be effectively saved cost first by that will hold up component integral arrangement on mounting rack；Secondly the compact-sized of component is held up, space needed for reducing installation, and the structure type of mounting rack can be adjusted flexibly according to installation space, the requirement to installation space is greatly reduced, mounting arrangements are more easier.
Description
Technical field
The present invention relates to shield duct piece steel reinforcement cage welding technology field more particularly to a kind of single mesh picking-up device and shields
Section of jurisdiction steel reinforcement cage welding equipment.
Background technique
During tunneling, shield machine needs the shield duct piece of multiple arcs by round hole after digging out round hole
It is fixed, firm safe space is provided for successive projects.Shield duct piece is closed by shield duct piece steel reinforcement cage and concrete anchor consolidation
It forms.Fig. 1 is the structural schematic diagram of shield duct piece steel reinforcement cage 100, as shown in Figure 1, shield duct piece steel reinforcement cage 100 is in including multiple
The single mesh 110 and Duo Gen stirrup 120 of arc shape；Multiple single meshes 110 interval and arranged in parallel；Between more stirrups 120
Every and be parallel to each other on the outer ledge for being weldingly fixed on multiple single meshes 110.
In shield duct piece steel reinforcement cage welding equipment, the monolithic that will be piled up in bunching device with single mesh picking-up device is needed
Net 110 is held up to the welding position of welder.The prior art provides a kind of single mesh picking-up device, as shown in Fig. 2, monolithic
Net picking-up device 10 ' includes two vertical cylinders 11 ' being vertically arranged, the supporting plate connecting with the telescopic end of vertical cylinder 11 '
12 ', two horizontal air cylinders 13 ' being arranged at intervals on supporting plate 12 ' and the picking-up pawl being connect with the telescopic end of horizontal air cylinder 13 '
14'.When holding up single mesh 110, needs two single mesh picking-up devices 10 ' to split and is completed jointly in the two sides of single mesh 110,
Specifically, the driving of horizontal air cylinder 13 ' picking-up pawl 14 ' is stretched out along horizontal guide rail 16 ' to single mesh 110 first, 110 two sides of single mesh
Single mesh picking-up device 10 ' in picking-up pawl 14 ' block the inner arc reinforcing bar 110a and outer arc reinforcing bar of single mesh 110 respectively
110b；Then vertical cylinder 11 ' holds up supporting plate 12 ' along upright guide rail 15 ' upwards, and supporting plate 12 ' is with picking-up pawl 14 ' and single mesh
110 move upwardly together, when single mesh 110 by support to the position welded with stirrup 120 when, vertical cylinder 11 ' stops drive
It is dynamic；It is retracted finally, the driving of horizontal air cylinder 13 ' holds up pawl 14 ' along horizontal guide rail 16 ', vertical cylinder 11 ' drives supporting plate 12 ' along perpendicular
The retraction of straight guide 15 ' resets, and completes the process for holding up a single mesh 110.
There are following defects for the single mesh picking-up device of the above-mentioned prior art：Its vertical stroke is mentioned by vertical cylinder completely
For, cause the model of vertical cylinder larger, not only increases cost, and biggish installation space need to be occupied, however shield pipe
The installation space of piece steel reinforcement cage welding equipment is limited, so causing space layout of the picking-up device on welding equipment more tired
It is difficult.Therefore, a kind of single mesh picking-up device and shield duct piece steel reinforcement cage welding equipment are needed to solve the above technical problems.
Summary of the invention
The purpose of the present invention is to provide a kind of single mesh picking-up device, with solve it is of the existing technology it is at high cost, account for
With the technical problem that installation space is big and mounting arrangements are more difficult.
For this purpose, the present invention uses following technical scheme：
A kind of single mesh picking-up device, including mounting rack are arranged at intervals at least two picking-up components on the mounting rack,
Each picking-up component includes horizontal fixing seat, horizontal movable base, the first driving mechanism, vertical fixing seat, vertical shift
Seat, the second driving mechanism and picking-up pawl；
Wherein, the horizontal fixing seat is fixed on the mounting rack, and the horizontal movable base and the level are solid
Reservation is slidably matched, and can the horizontal fixing seat described in the driving lower edge of first driving mechanism move horizontally；It is described vertical
Fixing seat is fixed in the horizontal movable base, and the vertical shift seat is slidably matched with the vertical fixing seat, and energy
The vertical fixing seat vertical shift described in the driving lower edge of second driving mechanism；The picking-up pawl is fixedly connected on described perpendicular
On straight Mobile base.
Preferably, the horizontal fixing seat and the horizontal movable base, it is provided with first pulley on one in the two,
The first sliding groove with first pulley cooperation is provided on another in the two.
Preferably, the horizontal fixing seat includes bottom plate and two pulley mounting plates, set in the pulley mounting plate
It is equipped with the first pulley；The horizontal movable base is located between two pulley mounting plates, and the two of the horizontal movable base
The horizontally extending first sliding groove is offered on opposite flank respectively.
Preferably, first driving mechanism is the first cylinder, first cylinder is fixed on the horizontal fixing seat
On, and the driving end of first cylinder and the horizontal movable base are drivingly connected.
Preferably, the vertical fixing seat and the vertical shift seat, it is provided with second pulley on one in the two,
It is provided on another in the two in the second sliding slot of second pulley cooperation.
Preferably, the U-shaped profile of the vertical fixing seat, described second is respectively arranged on two relative side
Pulley；The vertical shift seat is located at the inside of the vertical fixing seat, and the two relative side of the vertical shift seat is opened respectively
Equipped with the second sliding slot extended along the vertical direction.
Preferably, second driving mechanism is the second cylinder, the fixing end of second cylinder is fixed on the water
On flat Mobile base, the driving end of second cylinder and the vertical shift seat are drivingly connected.
Another object of the present invention is to provide a kind of shield duct piece steel reinforcement cage welding equipments, including described in any of the above item
Single mesh picking-up device.
Preferably, further including bunching device and welder, the bunching device is for piling up single mesh；Described in two
Single mesh picking-up device is separately positioned on the two sides of the bunching device, for holding out the single mesh one by one；The welding
The top of the bunching device is arranged in device, for welding stirrup and the single mesh held out.
The beneficial effect of the present invention compared with the prior art：
Single mesh picking-up device provided by the invention can be with first by will hold up component integral arrangement on mounting rack
The driving trip for shortening vertical driving mechanism reduces the model requirement to vertical driving mechanism, is effectively saved cost；Secondly
The compact-sized of component is held up, space needed for reducing installation, and mounting rack can be adjusted flexibly according to installation space
Structure type, greatly reduces the requirement to installation space, and mounting arrangements are more easier.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shield duct piece steel reinforcement cage；
Fig. 2 is the structural schematic diagram for the single mesh picking-up device that the prior art provides；
Fig. 3 is the structural schematic diagram of single mesh picking-up device provided by the invention；
Fig. 4 is sectional view along A-A in Fig. 3；
Fig. 5 is B-B direction cross-sectional view in Fig. 3；
Fig. 6 is the structural schematic diagram of shield duct piece steel reinforcement cage welding equipment provided by the invention.
In figure：
100- shield duct piece steel reinforcement cage；110- single mesh；110a- inner arc reinforcing bar；110b- outer arc reinforcing bar；120- stirrup；
10 '-single mesh picking-up devices；11 '-vertical cylinders；12 '-supporting plates；13 '-horizontal air cylinders；14 '-hold up pawl；15'-
Upright guide rail；16 '-horizontal guide rails；
10 single mesh picking-up devices；11- mounting rack；The horizontal fixing seat of 12-；121- bottom plate；122- pulley mounting plate；123-
First pulley；124- cylinder mounting plate；13- horizontal movable base；131- first sliding groove；The first cylinder of 14-；The vertical fixing seat of 15-；
151- second pulley；16- vertical shift seat；161- second sliding slot；162- connecting plate；The second cylinder of 17-；18- holds up pawl；
20- bunching device；30- welder.
Specific embodiment
Technical solution of the present invention is further illustrated with embodiment with reference to the accompanying drawing.It is understood that this place
The specific embodiment of description is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to
Convenient for description, in attached drawing, only the parts related to the present invention are shown and it is not all.
As shown in figure 3, the present invention provides a kind of single mesh picking-up device, which includes mounting rack 11,
At least two picking-up components are arranged at intervals on mounting rack 11, each picking-up component includes horizontal fixing seat 12, moves horizontally
The 13, first driving mechanism of seat, vertical fixing seat 15, vertical shift seat 16, the second driving mechanism and picking-up pawl 18.Wherein, water
Flat fixing seat 12 is fixed on mounting rack 11, and horizontal movable base 13 is slidably matched with horizontal fixing seat 12, and can be first
The horizontal fixing seat 12 of the driving lower edge of driving mechanism moves horizontally；Vertical fixing seat 15 is fixed in horizontal movable base 13,
Vertical shift seat 16 is slidably matched with vertical fixing seat 15, and can be perpendicular in the vertical fixing seat 15 of driving lower edge of the second driving mechanism
Translation is dynamic；Pawl 18 is held up to be fixedly connected on vertical shift seat 16.
Horizontal movable base 13 is slidably matched by way of pulley and sliding slot with horizontal fixing seat 12.In the present embodiment,
Referring to Fig. 3-Fig. 5, it is provided with first pulley 123 in horizontal fixing seat 12, first sliding groove 131 is offered in horizontal movable base 13.
Specifically, horizontal fixing seat 12 includes bottom plate 121 and is spaced apart and two pulley mounting plates 122 vertical with bottom plate 121,
The septal direction of two pulley mounting plates 122 is vertical with the moving direction of horizontal movable base 13, sets in each pulley mounting plate 122
It is equipped at least two first pulleys 123 arranged in the horizontal direction；Horizontal movable base 13 be located at two pulley mounting plates 122 it
Between, horizontally extending first sliding groove 131 is offered on the two relative side of horizontal movable base 13 respectively.Or at other
In embodiment, it is also possible to open up first sliding groove 131 in horizontal fixing seat 12, first pulley 123 is set in horizontal movable base 13.
Preferably, the first driving mechanism is the first cylinder 14, and horizontal fixing seat 12 further includes the cylinder mounting plate perpendicular to bottom plate 121
124, the first cylinder 14 is fixed on the cylinder mounting plate 124, and telescopic end and horizontal movable base 13 driving of the first cylinder 14 connect
It connects.
Vertical shift seat 16 is slidably matched with vertical fixing seat 15 also by the form of pulley and sliding slot.In the present embodiment
In, referring to Fig. 3 and Fig. 4, it is provided with second pulley 151 in vertical fixing seat 15, offers second sliding slot on vertical shift seat 16
161.Specifically, the U-shaped profile of vertical fixing seat 15 is respectively arranged at least on the two relative side of vertical fixing seat 15
Two second pulleys 151 arranged along the vertical direction；Vertical shift seat 16 is located at the inside of vertical fixing seat 15, vertical shift seat
16 opposite sides face offers the second sliding slot 161 extended along the vertical direction respectively.It or in other embodiments, can also be with
It is to offer second sliding slot 161 in vertical fixing seat 15, second pulley 151 is set on vertical shift seat 16.Preferably, it second drives
Motivation structure is the second cylinder 17, and the fixing end of the second cylinder 17 is fixed in horizontal movable base 13, the driving end of the second cylinder 17
It is drivingly connected with vertical shift seat 16 by connecting plate 162.
The fit form of the fit form of pulley and sliding slot sliding rail more in the prior art and sliding block more easily realizes, and
Cost is lower.Of course, it should be understood that horizontal movable base 13 is solid with horizontal fixing seat 12 and vertical shift seat 16 and vertically
The form of being slidably matched of reservation 15 is not limited to the form of pulley and sliding slot, can be realized times being slidably matched between the two
What other forms is used equally for the present invention, will not enumerate herein.
As shown in fig. 6, the present invention also provides a kind of shield duct piece steel reinforcement cage welding equipment, including single mesh as described above
Picking-up device 10 further includes bunching device 20 and welder 30.Wherein bunching device 20 is for piling up single mesh 110；Two
Single mesh picking-up device 10 is separately positioned on the two sides of bunching device 20, and wherein the picking-up pawl 18 of side is towards single mesh 110
Inner arc reinforcing bar 110a, wherein outer arc reinforcing bar 110b of the picking-up pawl 18 towards single mesh 110 of the other side；The setting of welder 30 exists
The top of bunching device 20.Single mesh picking-up device is sent to welding for holding out the single mesh 110 in bunching device 20 one by one
In device 30, shield duct piece steel reinforcement cage 100 is formed with the welding of stirrup 120.
The course of work of shield duct piece steel reinforcement cage welding equipment provided by the invention is as follows：Firstly, 20 two sides of bunching device
The first cylinder 14 driving horizontal movable base 13 move forward, horizontal movable base 13 drive hold up pawl 18 in the horizontal direction to bunching device
The single mesh 110 of block pattern row pattern is stretched out in 20, and the picking-up pawl 18 of 20 two sides of bunching device is stuck in inner arc reinforcing bar 110a and outer
On arc reinforcing bar 110b；Then, the second cylinder 17 driving vertical shift seat 16 of 20 two sides of bunching device moves up, vertical shift seat 16
It is moved upwardly together with picking-up pawl 18 and single mesh 110, when single mesh 110 is held in the palm to the position welded with stirrup 120
When, the second cylinder 17 stops driving, and the support member stretching in welder 30 supports single mesh 110；Then the first cylinder
14 driving horizontal movable bases 13 move back, and horizontal movable base 13 retracts in the horizontal direction with pawl 18 is held up, the driving of the second cylinder 17
Vertical shift seat 16 moves down, and vertical shift seat 16 moves down reset with pawl 18 is held up, while welder 30 is to stirrup 120 and support
The single mesh 110 risen in place is welded；Above-mentioned movement is repeated, until shield duct piece steel reinforcement cage 100 forms.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and being not is pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (9)
1. a kind of single mesh picking-up device, which is characterized in that including mounting rack (11), be arranged at intervals on the mounting rack (11)
At least two hold up component, and each picking-up component includes horizontal fixing seat (12), horizontal movable base (13), the first driving
Mechanism, vertical fixing seat (15), vertical shift seat (16), the second driving mechanism and picking-up pawl (18)；
Wherein, the horizontal fixing seat (12) is fixed on the mounting rack (11), the horizontal movable base (13) and institute
It states horizontal fixing seat (12) to be slidably matched, and can be in horizontal fixing seat (12) water described in the driving lower edge of first driving mechanism
Translation is dynamic；The vertical fixing seat (15) is fixed on the horizontal movable base (13), the vertical shift seat (16) with
The vertical fixing seat (15) is slidably matched, and the vertical fixing seat (15) described in the driving lower edge of second driving mechanism
Vertical shift；The picking-up pawl (18) is fixedly connected on the vertical shift seat (16).
2. single mesh picking-up device according to claim 1, which is characterized in that the horizontal fixing seat (12) and the water
Flat Mobile base (13) is provided with first pulley (123) on one in the two, is provided on another in the two and described
The first sliding groove (131) of one pulley (123) cooperation.
3. single mesh picking-up device according to claim 2, which is characterized in that the horizontal fixing seat (12) includes bottom plate
(121) and two pulley mounting plates (122) first pulley (123), are provided on the pulley mounting plate (122)；Institute
Horizontal movable base (13) are stated between two pulley mounting plates (122), the two opposite sides of the horizontal movable base (13)
The horizontally extending first sliding groove (131) is offered on face respectively.
4. single mesh picking-up device according to claim 1, which is characterized in that first driving mechanism is the first cylinder
(14), first cylinder (14) is fixed on the horizontal fixing seat (12), and the driving end of first cylinder (14) with
The horizontal movable base (13) is drivingly connected.
5. single mesh picking-up device according to claim 1, which is characterized in that the vertical fixing seat (15) and described perpendicular
Straight Mobile base (16) is provided with second pulley (151) on one in the two, is provided on another in the two in described the
The second sliding slot (161) of two pulleys (151) cooperation.
6. single mesh picking-up device according to claim 5, which is characterized in that the cross section of the vertical fixing seat (15)
It is in U-shape, the second pulley (151) is respectively arranged on two relative side；The vertical shift seat (16) is located at described perpendicular
The inside of straight fixing seat (15), the two relative side of the vertical shift seat (16) offer the institute extended along the vertical direction respectively
State second sliding slot (161).
7. single mesh picking-up device according to claim 1, which is characterized in that second driving mechanism is the second cylinder
(17), the fixing end of second cylinder (17) is fixed on the horizontal movable base (13), the drive of second cylinder (17)
Moved end and the vertical shift seat (16) are drivingly connected.
8. a kind of shield duct piece steel reinforcement cage welding equipment, which is characterized in that including the single mesh as described in claim any one of 1-7
Picking-up device (10).
9. shield duct piece steel reinforcement cage welding equipment according to claim 8, which is characterized in that further include bunching device (20)
With welder (30), the bunching device (20) is for piling up single mesh (110)；Two single mesh picking-up devices (10)
The two sides of the bunching device (20) are separately positioned on, for holding out the single mesh (110) one by one；The welder
(30) setting is in the top of the bunching device (20), for welding stirrup (120) and the single mesh (110) held out
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628913.6A CN108856601B (en) | 2018-06-19 | 2018-06-19 | Single-piece net supporting device and shield segment steel reinforcement cage welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628913.6A CN108856601B (en) | 2018-06-19 | 2018-06-19 | Single-piece net supporting device and shield segment steel reinforcement cage welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108856601A true CN108856601A (en) | 2018-11-23 |
| CN108856601B CN108856601B (en) | 2024-01-02 |
Family
ID=64339701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810628913.6A Active CN108856601B (en) | 2018-06-19 | 2018-06-19 | Single-piece net supporting device and shield segment steel reinforcement cage welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108856601B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984813A (en) * | 2023-09-27 | 2023-11-03 | 中交三航(南通)海洋工程有限公司 | Stacking device in shield segment steel reinforcement cage automatic welding equipment |
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| CN102458711A (en) * | 2009-05-28 | 2012-05-16 | Mep意大利美普机械制造有限公司 | Machine to make reinforcement cages, welding device to make reinforcement cages and relative producti |
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| CN103464656A (en) * | 2013-09-04 | 2013-12-25 | 建科机械（天津）股份有限公司 | Single mesh holding device of automatic shield segment steel cage welding equipment |
| CN103466336A (en) * | 2013-09-04 | 2013-12-25 | 建科机械（天津）股份有限公司 | Stacking device of automatic shield segment steel cage welding equipment |
| CN103464955A (en) * | 2013-09-04 | 2013-12-25 | 建科机械（天津）股份有限公司 | Single mesh holding device of shield segment steel cage single mesh squeezing and welding equipment |
| CN203428545U (en) * | 2013-07-30 | 2014-02-12 | 河北骄阳丝网设备有限责任公司 | Steel bar mesh stacking output device |
| CN208495664U (en) * | 2018-06-19 | 2019-02-15 | 建科机械（天津）股份有限公司 | A kind of single mesh picking-up device and welding equipment |
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2018
- 2018-06-19 CN CN201810628913.6A patent/CN108856601B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2202597Y (en) * | 1994-02-05 | 1995-07-05 | 陈达兴企业股份有限公司 | Steel wire cage automatic shaping machine |
| CN102458711A (en) * | 2009-05-28 | 2012-05-16 | Mep意大利美普机械制造有限公司 | Machine to make reinforcement cages, welding device to make reinforcement cages and relative producti |
| JP2012036667A (en) * | 2010-08-10 | 2012-02-23 | Sasaki Corporation | Device and method for assembling reinforcement cage |
| CN203003353U (en) * | 2012-11-02 | 2013-06-19 | 济南吉利汽车有限公司 | Clamp lifting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116984813A (en) * | 2023-09-27 | 2023-11-03 | 中交三航(南通)海洋工程有限公司 | Stacking device in shield segment steel reinforcement cage automatic welding equipment |
| CN116984813B (en) * | 2023-09-27 | 2023-12-15 | 中交三航(南通)海洋工程有限公司 | Stacking device in shield segment steel reinforcement cage automatic welding equipment |
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| Publication number | Publication date |
|---|---|
| CN108856601B (en) | 2024-01-02 |
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