CN106002453A - Electronically controlled double-adjustable feed clamping device - Google Patents
Electronically controlled double-adjustable feed clamping device Download PDFInfo
- Publication number
- CN106002453A CN106002453A CN201610379899.1A CN201610379899A CN106002453A CN 106002453 A CN106002453 A CN 106002453A CN 201610379899 A CN201610379899 A CN 201610379899A CN 106002453 A CN106002453 A CN 106002453A
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- CN
- China
- Prior art keywords
- clamping device
- material feed
- support
- electric
- feed clamping
- 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
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- 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
- B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
- B23Q7/1442—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices using carts carrying work holders
Abstract
The invention relates to an electronically controlled double-adjustable feed clamping device which comprises a base, a support seat and a lifting mechanism. The lifting mechanism comprises a box, a support frame and a delivery mechanism. The box is fixed to the base and provided with a top face capable of being lifted. The support seat is fixed to the top face. Both the support frame and the delivery mechanism are arranged inside the box. The support frame is fixed to the bottom of the top face. The whole delivery mechanism is mounted on the support frame and comprises two parallel racks, two rotating wheels engaged with the two racks correspondingly and two motors used for driving the two rotating wheels to synchronously rotate in the mutually reversed directions. The support seat is positioned above the top face through bolts. The bolts are rotated to adjust the distance between the support seat and the base. The support seat comprises a clamping plate, a support beam and two limiting posts, wherein the support beam is used for supporting a plurality of workpieces to be positioned, and the two limiting posts are fixed to the opposite two ends of the support beam. The clamping plate is locked to the support beam through a plurality of bolts with the tops being butterfly-shaped operating parts, and used for clamping the workpieces to be positioned to the support beam.
Description
Technical field
The present invention relates to a kind of clamping device during work piece production, particularly relate to double tune of a kind of electric-controlled type and send
Material clamping device.
Background technology
In the production process of workpiece, in the production process of piston rod, it is necessary first to cylinder barrel is cut into institute
The size needed, owing to cylinder barrel is longer, Heavy Weight, so inconvenient a dead lift, need to be provided with feeding
Device.Some pay-offs do not have clamping device, in cylinder barrel conveying built on the sand, there is potential safety hazard.Have
Even if arranging clamping device, but can not be according to cylinder barrel quantity regulating width.Haul of some pay-offs
Few, efficiency is low.Some blanking machines need by cold water pouring cut portion to cool in cutting process,
But cooling water can drench along cutting part and drop down the other end to cylinder barrel, wastes and pollutes workshop.Owing to cutting
Cut node needs to ensure the end face of all cylinder barrels at grade, so needing to arrange the device kept out.
Our company was a pay-off of this R & D design, and has applied for patent: in 2015 09 month 23
" a kind of pay-off for steel pipe blanking machine " that notification number is CN204658066U that day is announced.So
And in the use of production process, this kind of product still exists many defects, when cylinder barrel diameter changes,
Pay-off can not regulate therewith, thus obtain and additionally design the pay-off that the identical height of a structure is different.
To this end, research and development department of company is specially at World Intellectual Property Day (the The World in April 26 2016 this year
Intellectual Property Day) hold scientific and technical innovation mobilization meeting, the fierce discussion through everybody gives all
Many suggestions and way.Through research and development and the innovation of two weeks by a definite date, everybody provides tens kinds of good technology
Scheme, and meet at patent agency and carry out patent distribution and patent application.It is very big that whole event gives company
Research and development power, be filled with new research and development spirit, whole R&D force of company is inspired greatly.
Summary of the invention
In view of this, it is necessary to providing a kind of electric-controlled type double tune material feed clamping device, it solves different-diameter cylinder
The steady feeding problems of cylinder.
The present invention uses following technical scheme to realize, and a kind of electric-controlled type is double adjusts material feed clamping device, and it includes
Pedestal, support seat, elevating mechanism；This elevating mechanism includes casing, bracing frame, connecting gear；Casing is solid
Being scheduled on pedestal, casing has the end face that can lift, and supports seat and is fixed on end face；Bracing frame and conveyer
Structure is arranged in casing, and bracing frame is fixed on the bottom of end face；Connecting gear integral installation on bracing frame,
Connecting gear includes two runners that be arranged in parallel two tooth bars and two tooth bars engage respectively, drives two
Two motors of the mutually opposing synchronous axial system of individual runner；Being fixed with at least one guide pile on end face, this is automatically controlled
Formula is double adjusts material feed clamping device also to include at least one stud corresponding with at least one guide pile；Guide pile
Offering screw one, the bottom supporting seat offers the screw two corresponding with this screw one；One end of stud
By screwing togather in the screw one being plugged in corresponding guide pile, the other end of stud is plugged in accordingly by screwing togather
Support seat screw two in, make support seat by stud be positioned at top face and by rotate stud adjustment
Support the spacing between seat and pedestal；Support seat and include grip block, for supporting propping up of multiple workpiece to be positioned
Support beam, two limited posts being fixed on support beam opposite end；The opposite sides of grip block offers chute；
Offer holding tank respectively on the side that two limited posts are relative to each other, the opposite sides of holding tank is provided with
Draw runner, two draw runner screens respectively are in two chutes, and grip block can being guided in holding tank by draw runner
Relative limit post slides；Grip block is locked in support beam by some bolts that top is butterfly operation portion.
As the further improvement of such scheme, pedestal being provided with bracket, casing is arranged on bracket.
As the further improvement of such scheme, casing has guidance panel, and guidance panel is provided with control
The three-pointswitch that two motor synchronous run.
As the further improvement of such scheme, the bottom of pedestal is provided with some pulleys.
As the further improvement of such scheme, stud is arranged with stiffnut.
As the further improvement of such scheme, stud is for carrying externally threaded steel column.
As the further improvement of such scheme, the quantity of guide pile is multiple, and multiple guide piles are yi word pattern
Arrangement.
As the further improvement of such scheme, the two ends of grip block are locked in support beam by some bolts.
The present invention is in use, it is only necessary to start three-pointswitch, and one of them direction of three-pointswitch is to control
A kind of reverse sync rotating manner of two motors, another direction is to control the another kind of two motors reversely
Synchronous axial system mode, the 3rd direction is the reset of two motors and deenergization.Three-pointswitch has only to city
Type conventional on face, centre is to reset, and two represents two kinds of reverse sync respectively and rotates.Two horses
When reaching mutually opposing synchronous axial system, the runner of correspondence can be driven to move on corresponding tooth bar, so that supporting
Frame drives end face lifting, and final end face drives and supports seat lifting, it is achieved adjusts and supports spacing between seat and pedestal
Purpose.When support seat rises the position being down to need, can extremely support working as of seat by three-pointswitch replacement and fixation
Front state.
The structure design of the present invention, can solve different-diameter by adjusting the spacing supported between seat and pedestal
The steady feeding problems of cylinder barrel.Meanwhile, the present invention is simple to operate, and whole process has only to operate three-pointswitch
, workman can be on duty without training, it is easy to the popularization in process of manufacture and application.
Material feed clamping device is adjusted to support the spacing between seat and pedestal by adjustment it addition, electric-controlled type of the present invention is double,
Solving the steady feeding problems of different-diameter cylinder barrel, present configuration designs, and is not only simple in structure, and spiral shell
Post, to support design between seat, pedestal three very useful, is in particular in: support seat and base adjusting
During spacing between Zuo, only need to rotate stud, and support seat with any one in pedestal all without following spiral shell
Post rotates.So supporting the free degree of regulation of spacing between seat and pedestal the highest, supporting on seat even if supporting
Workpiece to be positioned (such as cylinder barrel) is had can also quickly to regulate the spacing supported between seat and pedestal.The most so
Design structure so that whole device convenient disassembly, it is easy to clear up and keep in repair.Meanwhile, the present invention operates letter
Single, workman can be on duty without training, it is easy to the popularization in process of manufacture and application.
Furthermore, multiple workpiece to be positioned are firmly positioned in support beam by the present invention by grip block, and keep away
Exempt from the unstable situation of feeding to occur, and adapt to, in the different cylinder barrel of various sizes, solve different-diameter cylinder barrel
Steady feeding problems.What is more important, by limited post from draw runner is set, therefore, it is possible to
Two the multiple workpiece to be positioned of orientation upper limit in left and right, and two limited posts inherently can be in former and later two orientation
Upper limit, therefore, the present invention can be at four multiple workpiece to be positioned of orientation upper limit.And compare traditional
Clamping mode, unless the whole device of the present invention is moved, the most multiple workpiece to be positioned will not occur shape
Become, and the easy whole disengaging support beam of traditional clamping mode；It addition, the design of such structure is the simplest
It is easily achieved, and cost is substantially reduced；Meanwhile, weight declines, and alleviates cutting mechanics tractive load, because of
For in whole operation process, multiple workpiece to be positioned are the tractions by cutting mechanics so that the present invention with
Move toward the direction near cutting mechanics with multiple workpiece to be positioned.
Accompanying drawing explanation
The double structural representation adjusting material feed clamping device of electric-controlled type that Fig. 1 provides for the embodiment of the present invention.
Fig. 2 is the close-up schematic view of region I in Fig. 1.
Fig. 3 is the close-up schematic view of region II in Fig. 1.
Fig. 4 is the internal structure schematic diagram of the double casing adjusting material feed clamping device of electric-controlled type in Fig. 1.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Seeing also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, wherein, Fig. 2 is that in Fig. 1, the local of region I is put
Big schematic diagram, Fig. 3 is the close-up schematic view of region II in Fig. 1.The electric-controlled type of the present invention is double adjusts feeding
Clamping device pedestal 14, support seat 12, elevating mechanism, at least one stud 11 (in the present embodiment, spiral shell
Post 11 illustrates as a example by two).Elevating mechanism is arranged on pedestal 14, and elevating mechanism props up for driving
Support seat 12 lifts.
Support seat 12 and include support beam 121, two limited posts 122, grip blocks 125.Support beam 121 is used
In supporting multiple workpiece 1 (such as cylinder barrel) to be positioned, two limited posts 122 are separately fixed at support beam 121
On opposite end.
The opposite sides of grip block 125 offers chute 126, the side that two limited posts 122 are relative to each other
The upper holding tank 123 that offers respectively, the opposite sides of holding tank 123 is provided with draw runner 124.Two draw runners
124 respectively screens are in two chutes 126, and what grip block 125 can pass through draw runner 124 is guided in holding tank
In 123, relative limited post 122 slides.If grip block 125 passes through the bolt stem that top is butterfly operation portion 17
It is locked in support beam 121.
Material feed clamping device of the present invention passes through grip block 125 in support beam 121 by multiple workpiece 1 to be positioned
Firmly position, and the situation avoiding feeding unstable occurs, and adapt in the different cylinder barrel of various sizes.
What is more important, by limited post 122 from draw runner 124 is set, therefore, it is possible to two, left and right
The multiple workpiece 1 to be positioned of orientation upper limit, and two limited posts 122 inherently can be in former and later two orientation
Spacing, therefore, the material feed clamping device of the present invention can be at four multiple workpiece 1 to be positioned of orientation upper limit.
And compare traditional clamping mode, and it is moved unless the material feed clamping device of the present invention is whole, the most
Individual workpiece to be positioned 1 will not deform upon, and the easy whole disengaging support beam 121 of traditional clamping mode；
It addition, the design of such structure is the most simply easily achieved, and cost is substantially reduced；Meanwhile, under weight
Fall, alleviates cutting mechanics tractive load, because in whole operation process, multiple workpiece 1 to be positioned are logical
Cross the traction of cutting mechanics so that the material feed clamping device of the present invention follows multiple workpiece to be positioned 1 toward close
The direction of cutting mechanics is moved.
This elevating mechanism includes casing 18, bracing frame 187, connecting gear.Casing 18 is fixed on pedestal 14
On, pedestal 14 can be provided with bracket 20, casing 18 is arranged on bracket 20.The bottom of pedestal 14 can
It is provided with some pulleys 15, is so moved easily whole electric-controlled type double tune material feed clamping device.
Casing 18 has the end face 184 that can lift, and the elevating function of end face 184 is realized by elevating mechanism.
Support seat 12 to be fixed on the end face 184 of casing 18, end face 184 is fixed with and at least one stud 11
At least one corresponding guide pile 16, this is corresponding shows: guide pile 16 the most quantitatively with
Stud 11 is identical, and is the most also one_to_one corresponding.Support seat 12 and be fixed on top by guide pile 16
On face 184.Support and be used for supporting some workpiece to be positioned 1 (such as cylinder barrel) on seat 12.When guide pile 16
Quantity is multiple, and multiple guide piles 16 are preferably arranged in yi word pattern.
Guide pile 16 offers screw one, and the bottom supporting seat 12 offers the spiral shell corresponding with this screw one
Hole two.One end of stud 11 is passed through to screw togather in the screw one being plugged in corresponding guide pile 16, stud 11
The other end is plugged in the corresponding screw two supporting seat 12 by screwing togather, and makes support seat 12 by stud 11
It is positioned at the spacing supported between seat 12 and pedestal 14 above pedestal 14 and by rotating stud 11 to adjust.
Material feed clamping device of the present invention structure design, be not only simple in structure, and stud 11, support seat 12,
Design between pedestal 14 three is very useful, is in particular in: support seat 12 and pedestal 14 adjusting
Between spacing time, only need to rotate stud 11, and support seat 12 and any one in pedestal 14 all without
Follow stud 11 to rotate.So support the free degree of regulation of spacing between seat 12 and pedestal 14 the highest, i.e.
Just supporting to support on seat 12 has workpiece 1 (such as cylinder barrel) to be positioned can also quickly regulate support seat 12 and base
Spacing between seat 14.The most such design structure so that whole material feed clamping device convenient disassembly, easily
In cleaning and maintenance.Therefore, the present invention can solve by adjusting the spacing supported between seat 12 and pedestal 14
The certainly steady feeding problems of different-diameter cylinder barrel.Meanwhile, the present invention is simple to operate, and workman is without training
On duty, it is easy to the popularization in process of manufacture and application.
In order to improve the structural strength of stud 11, it is proposed that stud 11 uses and carries externally threaded steel column.Preferably
Stud 11 is arranged with stiffnut 13.When rotating stud 11, stiffnut 13 can not only play
Well positioning action, moreover it is possible to share the stress being carried on guide pile 16.
Bracing frame 187 and connecting gear are arranged in casing 18, and bracing frame 187 is fixed on end face 184
Bottom.Connecting gear integral installation is on bracing frame 187, and connecting gear includes two teeth be arrangeding in parallel
Two runners 193, two runners 193 of driving that bar 192 engages respectively with two tooth bars 192 are mutually opposing
Two motors 194 of synchronous axial system.Casing 18 can have guidance panel 181, and guidance panel 181 is arranged
There is the three-pointswitch 182 controlling two motor 194 synchronous operations.
The present invention is in use, it is only necessary to start three-pointswitch 182, one of them side of three-pointswitch 182
To being a kind of reverse sync rotating manner controlling two motors 194, another direction is to control two motors
The another kind of reverse sync rotating manner of 194, the 3rd direction is the reset of two motors 194 and disconnects electricity
Source.Three-pointswitch 182 has only to the type commonly used on the market, and centre is to reset, and two represents respectively
Two kinds of reverse sync rotate.During two motor 194 mutually opposing synchronous axial system, the runner 193 of correspondence can be driven
Corresponding tooth bar 192 moves, so that bracing frame 187 drives end face 184 to lift, final end face 184
Support seat 12 is driven to lift, it is achieved to adjust and support the purpose of spacing between seat 12 and pedestal 14.Support seat
During 12 liters of positions being down to needs, can extremely be supported the current state of seat 12 by three-pointswitch replacement and fixation.
The structure design of the present invention, can be by adjusting the spacing supported between seat 12 and pedestal 14, and solution is never
Steady feeding problems with diameter cylinder barrel.Meanwhile, the present invention is simple to operate, and whole process has only to operate three
To switch 182, workman without training can be on duty, it is easy to the popularization in process of manufacture with answer
With.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.
Claims (8)
1. electric-controlled type is double adjusts a material feed clamping device, and it includes pedestal (14), supports seat (12)；Support
Seat (12) includes the support beam (121) for supporting multiple workpiece to be positioned (1), is fixed on support beam (121)
Two limited posts (122) on opposite end；It is characterized in that: this electric-controlled type is double adjusts material feed clamping device also
Including elevating mechanism；This elevating mechanism includes casing (18), bracing frame (187), connecting gear；Casing (18)
Being fixed on pedestal (14), casing (18) has the end face (184) that can lift, and supports seat (12) solid
It is scheduled on end face (184)；Bracing frame (187) and connecting gear are arranged in casing (18), support
Frame (187) is fixed on the bottom of end face (184)；Connecting gear integral installation on bracing frame (187),
Connecting gear includes two that be arranged in parallel two tooth bars (192) are engaged respectively with two tooth bars (192)
Runner (193), two motors (194) of two mutually opposing synchronous axial system of runner (193) of driving；
Being fixed with at least one guide pile (16) on end face (184), this electric-controlled type is double adjusts material feed clamping device
Also include at least one stud (11) corresponding with at least one guide pile (16)；Guide pile (16) leaves
Being provided with screw one, the bottom supporting seat (12) offers the screw two corresponding with this screw one；Stud (11)
One end by screwing togather in the screw one being plugged in corresponding guide pile (16), the other end of stud (11)
It is plugged in the screw two supporting seat (12) accordingly by screwing togather, makes support seat (12) by stud (11)
It is positioned at end face (184) top and adjusts support seat (12) and pedestal (14) by rotating stud (11)
Between spacing；
Support seat (12) and also include that grip block (125), the opposite sides of grip block (125) offer chute
(126)；Offer holding tank (123) respectively on the side that two limited posts (122) are relative to each other, accommodate
Being provided with draw runner (124) in the opposite sides of groove (123), two draw runner (124) screens respectively are at two
In chute (126), grip block (125) can pass through draw runner (124) to be guided in holding tank (123) interior
Relative limit post (122) slides；Grip block (125) is the some of butterfly operation portion (17) by top
Bolt is locked in support beam (121).
2. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: pedestal (14)
On be provided with bracket (20), casing (18) is arranged on bracket (20).
3. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: casing (18)
There is guidance panel (181), guidance panel (181) is provided with two motors (194) of control and synchronizes fortune
The three-pointswitch (182) of row.
4. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: pedestal (14)
Bottom be provided with some pulleys (15).
5. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: stud (11)
On be arranged with stiffnut (13).
6. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: stud (11)
For carrying externally threaded steel column.
7. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: guide pile (16)
Quantity be multiple, multiple guide piles (16) are arranged in yi word pattern.
8. electric-controlled type as claimed in claim 1 is double adjusts material feed clamping device, it is characterised in that: grip block
(125) two ends are locked in support beam (121) by some bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610379899.1A CN106002453A (en) | 2016-05-31 | 2016-05-31 | Electronically controlled double-adjustable feed clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610379899.1A CN106002453A (en) | 2016-05-31 | 2016-05-31 | Electronically controlled double-adjustable feed clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106002453A true CN106002453A (en) | 2016-10-12 |
Family
ID=57092062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610379899.1A Pending CN106002453A (en) | 2016-05-31 | 2016-05-31 | Electronically controlled double-adjustable feed clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106002453A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202462094U (en) * | 2012-01-13 | 2012-10-03 | 安徽新园矿山设备制造有限责任公司 | Sawing machine automatic feed device |
| US20130213769A1 (en) * | 2010-09-21 | 2013-08-22 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Production cell with a workpiece transfer device, and transport device for workpieces and part carriers |
| CN203696136U (en) * | 2013-12-20 | 2014-07-09 | 浙江五环钛业股份有限公司 | Sawing machine feeding rack |
| CN203936811U (en) * | 2014-05-27 | 2014-11-12 | 潘素云 | Fixture for boiler with heat exchanger tube |
| CN204400019U (en) * | 2015-01-01 | 2015-06-17 | 广州市嘉诚国际物流股份有限公司 | A kind of improvement automatic guided vehicle |
| CN204658066U (en) * | 2015-05-21 | 2015-09-23 | 安庆市天润工程机械有限责任公司 | A kind of pay-off for steel pipe blanking machine |
| CN105290862A (en) * | 2014-05-27 | 2016-02-03 | 天津市兴南电机制造有限公司 | Feeding device |
-
2016
- 2016-05-31 CN CN201610379899.1A patent/CN106002453A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130213769A1 (en) * | 2010-09-21 | 2013-08-22 | Trumpf Maschinen Austria Gmbh & Co. Kg. | Production cell with a workpiece transfer device, and transport device for workpieces and part carriers |
| CN202462094U (en) * | 2012-01-13 | 2012-10-03 | 安徽新园矿山设备制造有限责任公司 | Sawing machine automatic feed device |
| CN203696136U (en) * | 2013-12-20 | 2014-07-09 | 浙江五环钛业股份有限公司 | Sawing machine feeding rack |
| CN203936811U (en) * | 2014-05-27 | 2014-11-12 | 潘素云 | Fixture for boiler with heat exchanger tube |
| CN105290862A (en) * | 2014-05-27 | 2016-02-03 | 天津市兴南电机制造有限公司 | Feeding device |
| CN204400019U (en) * | 2015-01-01 | 2015-06-17 | 广州市嘉诚国际物流股份有限公司 | A kind of improvement automatic guided vehicle |
| CN204658066U (en) * | 2015-05-21 | 2015-09-23 | 安庆市天润工程机械有限责任公司 | A kind of pay-off for steel pipe blanking machine |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161012 |