CN209304105U - A kind of fixture of cold bending angle iron processing - Google Patents
A kind of fixture of cold bending angle iron processing Download PDFInfo
- Publication number
- CN209304105U CN209304105U CN201821758412.1U CN201821758412U CN209304105U CN 209304105 U CN209304105 U CN 209304105U CN 201821758412 U CN201821758412 U CN 201821758412U CN 209304105 U CN209304105 U CN 209304105U
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- fixedly connected
- mobile base
- fixed block
- screw rod
- bending angle
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Abstract
The utility model discloses a kind of fixtures of cold bending angle iron processing, including bottom plate, being fixedly connected sequentially at the top of bottom plate has the first fixed block, second fixed block, base plate interior side is fixedly connected with the first rotating device, base plate interior and the second rotating device is fixedly connected between the first fixed block and the second fixed block, the surface of first rotating device is successively threaded with first movement pedestal, second mobile base, the first hydraulic stem is fixedly connected at the top of first movement pedestal, the surface of second rotating device is successively threaded with third mobile base, 4th mobile base, third mobile base, rotation seat is fixedly connected at the top of 4th mobile base, third hydraulic stem is fixedly connected at the top of rotation seat, the utility model relates to clamp arts.It is single to solve existing fixture functional structure for the fixture of this kind of cold bending angle iron processing, it is difficult to and meet process requirements, needs manually to clamp in use process, time-consuming and laborious, ineffective problem.
Description
Technical field
The utility model relates to clamp art, specially a kind of fixture of cold bending angle iron processing.
Background technique
Cold bending angle iron is to form manufactured steel using steel plate or steel strip cold-bending, is that both sides are orthogonal at angular long bar steel
Material.Its wall thickness can not only be made very thin, but also enormously simplify production technology, improve production efficiency.Cold bending angle iron can be pressed
The difference of structure needs to form a variety of different primary structure members, can also make the connector between component.It is widely used for various build
Building structure and engineering structure, as house beam, bridge, power transmission tower, handling machinery, ship, industrial furnace, reaction tower, receptacle stand with
And warehouse shelf etc..Existing cold bending angle iron generally goes through that reprocessing is practical again, and work in-process is in order to guarantee cold bending angle iron
Stablize, clamp cold bending angle iron usually using fixture, existing fixture functional structure is single, it is difficult to meet process requirements, use
It needs manually to clamp in the process, time-consuming and laborious, working efficiency is low.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of fixture of cold bending angle iron processing, solves existing
Some fixture functional structures are single, it is difficult to and meet process requirements, needs manually to clamp in use process, time-consuming and laborious, work effect
The low problem of rate.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of cold bending angle iron processing use
Fixture, including bottom plate is fixedly connected with the first fixed block at the top of the bottom plate, the top of the bottom plate and to be located at first solid
The side for determining block is fixedly connected with the second fixed block, the base plate interior and is fixedly connected with first far from the second fixed block side
Rotating device, the base plate interior and is fixedly connected with the second rotating device between the first fixed block and the second fixed block,
The surface of first rotating device is successively threaded with first movement pedestal, the second mobile base, the first movement bottom
The top of seat is fixedly connected with the first hydraulic stem, and the working end of first hydraulic stem is fixedly connected with the first briquetting, and described the
The second hydraulic stem is fixedly connected at the top of two mobile bases, the working end of second hydraulic stem is fixedly connected with the second pressure
Block, the surface of second rotating device are successively threaded with third mobile base, the 4th mobile base, and the third is mobile
Rotation seat is fixedly connected at the top of pedestal, the 4th mobile base, it is hydraulic to be fixedly connected with third at the top of the rotation seat
The side of bar, the top of the rotation seat and close third hydraulic stem is fixedly connected with support rod, and the top of the support rod turns
Dynamic to be connected with connecting rod, the side of the connecting rod is rotatably connected to compression bar, and the working end of the third hydraulic stem is fixedly connected
There is trundle, the trundle and compression bar are sequentially connected, and the compression bar is rotatably connected to third briquetting far from one end of trundle.
Preferably, first rotating device includes the first screw rod and the second screw rod, first screw rod and the second screw rod
It being rotatablely connected with base plate interior, one end of first screw rod is fixedly connected with the first conical gear, and the one of second screw rod
End is fixedly connected with the second conical gear, and first conical gear is engaged with the surface of the second conical gear is connected with third circle
Bevel gear, the center of the third conical gear are fixedly connected with the first transmission shaft, and one end of first transmission shaft is fixed to be connected
It is connected to the first power block.
Preferably, second rotating device includes third screw rod and the 4th screw rod, the third screw rod and the 4th screw rod
It being rotatablely connected with base plate interior, one end of the third screw rod is fixedly connected with the 4th conical gear, and the one of the 4th screw rod
End is fixedly connected with the 5th conical gear, and the 4th conical gear is engaged with the surface of the 5th conical gear is connected with the 6th circle
Bevel gear, the center of the 6th conical gear are fixedly connected with second driving shaft, and one end of the second driving shaft is fixed to be connected
It is connected to the second power block, the surface of the second driving shaft and one end far from the second power block is sequentially connected with drive sleeve.
Preferably, the first movement pedestal, the second mobile base, third mobile base and the 4th mobile base side
It is slidably connected with bottom plate, the surface of the bottom plate offers and first movement pedestal, the second mobile base, third mobile base
With the sliding slot of the 4th mobile base adaptation.
Preferably, the middle part at the top of first fixed block opens up fluted, and the both ends of first fixed block are set as
45 degree of inclined-planes.
Preferably, it is set as right angle at the top of second fixed block, is set as small flat at the top of second fixed block
Face.
Preferably, the surface of the compression bar offers strip hole, and surface and the strip hole of the trundle are slidably connected.
Preferably, one end of first transmission shaft is provided with the Tooth Profile being adapted to drive sleeve, the drive sleeve with
The connection of first transmission shaft driven, the first power block, the second power block are interior hexagonal block.
Preferably, the surface four corners of the bottom plate offer fixation hole.
Preferably, the rotation seat can be rotated 180 degree.
(3) beneficial effect
The utility model provides a kind of fixture of cold bending angle iron processing.Have it is following the utility model has the advantages that
(1), the fixture of this kind of cold bending angle iron processing, it is described by being fixedly connected with the first fixed block at the top of bottom plate
Base plate interior and the first rotating device is fixedly connected with far from the second fixed block side, the surface of first rotating device is successively
It is threaded with first movement pedestal, the second mobile base, it is hydraulic to be fixedly connected with first at the top of the first movement pedestal
Bar, the working end of first hydraulic stem are fixedly connected with the first briquetting, are fixedly connected at the top of second mobile base
Second hydraulic stem, the working end of second hydraulic stem are fixedly connected with the second briquetting, and the middle part at the top of the first fixed block opens up
Fluted, the both ends of first fixed block are set as 45 degree of inclined-planes, are matched using the first briquetting, the second briquetting and the first fixed block
Conjunction clamps cold bending angle iron, is clamped using hydraulic stem, clamps, improves work efficiency instead of traditional craft, reduces
Labor intensity.The middle part at the top of the first fixed block opens up fluted convenient for drilling to cold bending angle iron surface simultaneously, by the
The both ends of one fixed block are set as 45 degree of inclined-planes and are convenient for carrying out cold bending angle iron 45 degree of cuttings, while passing through the first briquetting, second
Cold bending angle iron is clamped and the angle steel after cutting directly can be converted into perpendicular type by briquetting and the cooperation of the first fixed block, meets processing need
It asks.
(2), the fixture of this kind of cold bending angle iron processing, the top by the bottom plate and the side positioned at the first fixed block
It is fixedly connected with the second fixed block, the base plate interior and is fixedly connected between the first fixed block and the second fixed block
Two rotating devices, the surface of second rotating device is successively threaded with third mobile base, the 4th mobile base, described
It is fixedly connected to rotation seat at the top of third mobile base, the 4th mobile base, is fixedly connected at the top of the rotation seat
The side of third hydraulic stem, the top of the rotation seat and close third hydraulic stem is fixedly connected with support rod, the support rod
Top be rotatably connected to connecting rod, the side of the connecting rod is rotatably connected to compression bar, the working end of the third hydraulic stem
It is fixedly connected with trundle, the trundle and compression bar are sequentially connected, and the compression bar is rotatably connected to far from one end of trundle
Third briquetting drives compression bar rotation by third hydraulic stem, realizes to being clamped at the top of cold bending angle iron, ensure that the steady of processing
It is qualitative, while by rotation seat, the cold bending angle iron at the top of the second fixed block can be clamped, carry out other processing, improve
The flexibility of fixture.
(3), the fixture of this kind of cold bending angle iron processing is fixedly connected by base plate interior and far from the second fixed block side
There is the first rotating device, the base plate interior and is fixedly connected with the second rotation between the first fixed block and the second fixed block
Device, one end of the first transmission shaft are provided with the Tooth Profile being adapted to drive sleeve, the drive sleeve and the first transmission shaft driven
Connection, the first power block, the second power block are interior hexagonal block, can be distinguished by the first rotating device, the second rotating device
First movement pedestal and the second mobile base are moved with third mobile base and the 4th mobile base, according to cold bending angle iron
Length reasonably clamped with working position, using drive sleeve can independently to the first rotating device and the second rotating device into
Row control, can also be sequentially connected with the first drive shaft the whole control of progress by drive sleeve, and the actual operation being convenient for improves work
Make efficiency.
Detailed description of the invention
Fig. 1 is the utility model overall structure main view；
Fig. 2 is the utility model overall structure top view；
Fig. 3 is the utility model overall structure bottom view；
Fig. 4 is the structural schematic diagram of the utility model drive sleeve；
Fig. 5 is the structural schematic diagram of the utility model first movement pedestal.
In figure: 1- bottom plate, the first fixed block of 2-, the second fixed block of 3-, the first rotating device of 4-, the first screw rod of 41-, 42-
Second screw rod, the first conical gear of 43-, the second conical gear of 44-, 45- third conical gear, the first transmission shaft of 46-, 47-
One power block, the second rotating device of 5-, 51- third screw rod, the 4th screw rod of 52-, the 4th conical gear of 53-, the 5th circular cone tooth of 54-
Wheel, the 6th conical gear of 55-, 56- second driving shaft, the second power of 57- block, 58- drive sleeve, 6- first movement pedestal, 7-
Two mobile bases, the first hydraulic stem of 8-, the first briquetting of 9-, the second hydraulic stem of 10-, the second briquetting of 11-, 12- third mobile base,
The 4th mobile base of 13-, 14- rotation seat, 15- third hydraulic stem, 16- support rod, 17- connecting rod, 18- compression bar, 19- transmission
Pin, 20- third briquetting, 21- fixation hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of fixture of cold bending angle iron processing, including
Bottom plate 1, the top of bottom plate 1 are fixedly connected with the first fixed block 2, the top of the bottom plate 1 and side for being located at the first fixed block 2 is fixed
It is connected with the second fixed block 3,1 inside of bottom plate and is fixedly connected with the first rotating device 4, bottom plate 1 far from 3 side of the second fixed block
It is internal and the second rotating device 5 is fixedly connected between the first fixed block 2 and the second fixed block 3, the first rotating device 4
Surface is successively threaded with first movement pedestal 6, the second mobile base 7, and the top of first movement pedestal 6 is fixedly connected with
One hydraulic stem 8, the working end of the first hydraulic stem 8 are fixedly connected with the first briquetting 9, and the top of the second mobile base 7 is fixedly connected
There is the second hydraulic stem 10, the working end of the second hydraulic stem 10 is fixedly connected with the second briquetting 11, and the first hydraulic stem 8, second is hydraulic
Bar 10 works, and the clamping of cold bending angle iron is realized by the first briquetting 9 and the cooperation of the second briquetting 11 and the first fixed block 2.Second turn
The surface of dynamic device 5 is successively threaded with third mobile base 12, the 4th mobile base 13, third mobile base the 12, the 4th
The top of mobile base 13 is fixedly connected to rotation seat 14, and the top of rotation seat 14 is fixedly connected with third hydraulic stem 15, turns
The top of dynamic seat 14 and the side of close third hydraulic stem 15 are fixedly connected with support rod 16, the top rotation connection of support rod 16
There is connecting rod 17, the side of connecting rod 17 is rotatably connected to compression bar 18, and the working end of third hydraulic stem 15 is fixedly connected with transmission
Pin 19, trundle 19 and compression bar 18 are sequentially connected, and compression bar 18 is rotatably connected to third briquetting 20 far from one end of trundle 19, lead to
Crossing third hydraulic stem 15 drives compression bar 18 to rotate, and is clamped cold bending angle iron by third briquetting 20, is protected using hydraulic clamp
Clamping force has been demonstrate,proved, has been improved work efficiency.
First rotating device 4 includes the first screw rod 41 and the second screw rod 42, the first screw rod 41 and the second screw rod 42 and bottom plate 1
Inner rotation connection, one end of the first screw rod 41 are fixedly connected with the first conical gear 43, and one end of the second screw rod 42 is fixed to be connected
It is connected to the second conical gear 44, the first conical gear 43 engages with the surface of the second conical gear 44 and is connected with third conical gear
45, the center of third conical gear 45 is fixedly connected with the first transmission shaft 46, and one end of the first transmission shaft 46 is fixedly connected with
One power block 47 is rotated by the first power block 47 and drives the rotation of the first transmission shaft 46, drives first by gear engaged transmission
Screw rod 41 and the rotation of the second screw rod 42, so that the movement of first movement pedestal 6, the second mobile base 7 is realized, according to cold bending angle iron
Length and Working position select reasonable clamped position.
Second rotating device 5 includes third screw rod 51 and the 4th screw rod 52, third screw rod 51 and the 4th screw rod 52 and bottom plate 1
Inner rotation connection, one end of third screw rod 51 are fixedly connected with the 4th conical gear 53, and one end of the 4th screw rod 52 is fixed to be connected
It is connected to the 5th conical gear 54, the 4th conical gear 53 is engaged with the surface of the 5th conical gear 54 is connected with the 6th conical gear
55, the center of the 6th conical gear 55 is fixedly connected with second driving shaft 56, and one end of second driving shaft 56 is fixedly connected with
Two power blocks 57, the surface of second driving shaft 56 and are sequentially connected with drive sleeve 58 far from one end of the second power block 57, can be into
The selection of row clamped position.
First movement pedestal 6, the second mobile base 7, third mobile base 12 and the 4th mobile base 13 side with
Bottom plate 1 is slidably connected, the surface of bottom plate 1 offer with first movement pedestal 6, the second mobile base 7, third mobile base 12 and
The sliding slot of 4th mobile base 13 adaptation, guarantees first movement pedestal 6, the second mobile base 7, third mobile base 12 and the 4th
The stability of mobile base 13.
The middle part at the top of the first fixed block 2 opens up fluted, and convenient for drilling, the both ends of the first fixed block 2 are set as 45 degree
Instrument bevel is convenient on inclined-plane.
The top of second fixed block 3 is set as right angle, and the top of the second fixed block 3 is set as facet, facilitates clod wash angle
Steel tips upside down on 3 top of the second fixed block.
The surface of compression bar 18 offers strip hole, and surface and the strip hole of trundle 19 are slidably connected, and drives compression bar 18
Rotation.
One end of first transmission shaft 46 is provided with the Tooth Profile being adapted to drive sleeve 58, drive sleeve 58 and the first transmission shaft
46 transmission connections, the first power block 47, the second power block 57 are interior hexagonal block, it can be achieved that linking, while controlling the first rotation dress
Set 4 and second rotating device 5, can also independent control, be easy to use.
The surface four corners of bottom plate 1 offer fixation hole 21, the fixed installation for bottom plate 1.
Rotation seat 14 can be rotated 180 degree, can be realized by third briquetting 20 on the first fixed block 2, the second fixed block 3
Cold bending angle iron is fixed.
When work, it is placed on 2 top of the first fixed block by the one of cold bending angle iron, the other side leads to close to 9 side of the first briquetting
The first hydraulic stem 9, the work of the second hydraulic stem 10 are crossed, the first briquetting 9, the second briquetting 11 realize the clamping to cold bending angle iron side,
It drives compression bar 18 to rotate by third hydraulic stem 15 simultaneously, is clamped cold bending angle iron by third briquetting 20, it then can be into
Processing of the row to cold bending angle iron；When cold bending angle iron tips upside down on the second 3 top of fixed block, 180 degree is rotated by rotation seat 14, the
Three briquettings 20 are located at 3 top of the second fixed block, drive compression bar 18 to rotate by third hydraulic stem 15, will be cold by third briquetting 20
Bent angle steel is clamped；It is to be rotated by the first power block 47 and drive the rotation of the first transmission shaft 46, led to when needing to adjust clamping position
It crosses gear engaged transmission and drives the first screw rod 41 and the rotation of the second screw rod 42, to realize the mobile bottom of first movement pedestal 6, second
The movement of seat 7, the adjustment of 5 same procedure of the second rotating device, while drive sleeve 58 can also be connect with the first transmission shaft 46, it realizes
Whole control.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of fixture of cold bending angle iron processing, including bottom plate (1), it is characterised in that: the top of the bottom plate (1) is fixed to be connected
It is connected to the first fixed block (2), it is solid that the top of the bottom plate (1) and the side for being located at the first fixed block (2) are fixedly connected with second
Determine block (3), the bottom plate (1) is internal and is fixedly connected with the first rotating device (4) far from the second fixed block (3) side, described
Bottom plate (1) is internal and the second rotating device (5), institute are fixedly connected between the first fixed block (2) and the second fixed block (3)
The surface for stating the first rotating device (4) is successively threaded with first movement pedestal (6), the second mobile base (7), and described first
It is fixedly connected at the top of mobile base (6) the first hydraulic stem (8), the working end of first hydraulic stem (8) is fixedly connected with
First briquetting (9) is fixedly connected with the second hydraulic stem (10) at the top of second mobile base (7), second hydraulic stem
(10) working end is fixedly connected with the second briquetting (11), and the surface of second rotating device (5) is successively threaded with
Three mobile bases (12), the 4th mobile base (13), the third mobile base (12), the top of the 4th mobile base (13) are equal
It is fixedly connected with rotation seat (14), is fixedly connected with third hydraulic stem (15), the rotation seat at the top of the rotation seat (14)
(14) side at top and close third hydraulic stem (15) is fixedly connected with support rod (16), the top of the support rod (16)
It is rotatably connected to connecting rod (17), the side of the connecting rod (17) is rotatably connected to compression bar (18), the third hydraulic stem
(15) working end is fixedly connected with trundle (19), and the trundle (19) and compression bar (18) are sequentially connected, the compression bar
(18) one end far from trundle (19) is rotatably connected to third briquetting (20).
2. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: first rotating device
(4) include the first screw rod (41) and the second screw rod (42), first screw rod (41) and the second screw rod (42) with inside bottom plate (1)
Rotation connection, one end of first screw rod (41) are fixedly connected with the first conical gear (43), second screw rod (42)
One end is fixedly connected with the second conical gear (44), and first conical gear (43) and the surface of the second conical gear (44) are nibbled
Conjunction is connected with third conical gear (45), and the center of the third conical gear (45) is fixedly connected with the first transmission shaft (46),
One end of first transmission shaft (46) is fixedly connected with the first power block (47).
3. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: second rotating device
It (5) include third screw rod (51) and the 4th screw rod (52), the third screw rod (51) and the 4th screw rod (52) and bottom plate (1) are internal
Rotation connection, one end of the third screw rod (51) are fixedly connected with the 4th conical gear (53), the 4th screw rod (52)
One end is fixedly connected with the 5th conical gear (54), and the 4th conical gear (53) and the surface of the 5th conical gear (54) are nibbled
Conjunction is connected with the 6th conical gear (55), and the center of the 6th conical gear (55) is fixedly connected with second driving shaft (56),
One end of the second driving shaft (56) is fixedly connected with the second power block (57), the surface of the second driving shaft (56) and remote
One end from the second power block (57) is sequentially connected with drive sleeve (58).
4. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: the first movement pedestal
(6), the side of the second mobile base (7), third mobile base (12) and the 4th mobile base (13) is slided with bottom plate (1) and is connected
It connects, the surface of the bottom plate (1) offers and first movement pedestal (6), the second mobile base (7), third mobile base (12)
With the sliding slot of the 4th mobile base (13) adaptation.
5. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: first fixed block
(2) middle part at the top of opens up fluted, and the both ends of first fixed block (2) are set as 45 degree of inclined-planes.
6. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: second fixed block
(3) it is set as right angle, being set as facet at the top of second fixed block (3) at the top of.
7. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: the table of the compression bar (18)
Face offers strip hole, and the surface of the trundle (19) is slidably connected with strip hole.
8. a kind of fixture of cold bending angle iron processing according to claim 2, it is characterised in that: first transmission shaft
(46) one end is provided with the Tooth Profile being adapted to drive sleeve (58), and the drive sleeve (58) and the first transmission shaft (46) are driven
Connection, the first power block (47), the second power block (57) are interior hexagonal block.
9. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: the table of the bottom plate (1)
Face four corners offer fixation hole (21).
10. a kind of fixture of cold bending angle iron processing according to claim 1, it is characterised in that: the rotation seat (14)
It can be rotated 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821758412.1U CN209304105U (en) | 2018-10-29 | 2018-10-29 | A kind of fixture of cold bending angle iron processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821758412.1U CN209304105U (en) | 2018-10-29 | 2018-10-29 | A kind of fixture of cold bending angle iron processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209304105U true CN209304105U (en) | 2019-08-27 |
Family
ID=67671759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821758412.1U Expired - Fee Related CN209304105U (en) | 2018-10-29 | 2018-10-29 | A kind of fixture of cold bending angle iron processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209304105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020889A (en) * | 2021-03-17 | 2021-06-25 | 泉州芸台科技有限公司 | Automatic welding equipment for net frame |
-
2018
- 2018-10-29 CN CN201821758412.1U patent/CN209304105U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020889A (en) * | 2021-03-17 | 2021-06-25 | 泉州芸台科技有限公司 | Automatic welding equipment for net frame |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20201029 |