CN106853550A - A kind of bidifly photocoagulation integrated form plumb joint - Google Patents
A kind of bidifly photocoagulation integrated form plumb joint Download PDFInfo
- Publication number
- CN106853550A CN106853550A CN201510903915.8A CN201510903915A CN106853550A CN 106853550 A CN106853550 A CN 106853550A CN 201510903915 A CN201510903915 A CN 201510903915A CN 106853550 A CN106853550 A CN 106853550A
- Authority
- CN
- China
- Prior art keywords
- frame
- inner core
- laser
- nozzle base
- auxiliary laser
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
- B23K26/1464—Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire
- B23K26/1476—Features inside the nozzle for feeding the fluid stream through the nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to laser welding field,Specifically a kind of bidifly photocoagulation integrated form plumb joint,Including laser head interface,Nozzle base,Wai Ji Zuo ﹑ L-types Luo line Jie Tou ﹑ inner core covers,Outer adapter sleeve and auxiliary laser component,Nozzle base is arranged on laser head interface downside,Outer frame is sleeved on nozzle base,Protection air cavity is formed between the mounting body of the outer frame and the base body of nozzle base,Inner core cover is sleeved in the connecting shaft of nozzle base,Communicate to form welding laser channeling inside the connecting shaft inside and inner core cover,Outer adapter sleeve is sleeved in the shaft sleeve part of outer frame,Communicate to form protection gas passage between the shaft sleeve part of the outer frame and the connecting shaft of nozzle base and between the outer adapter sleeve and inner core cover,The outer frame both sides are fixed with L-type nipple,The auxiliary laser frame component is arranged at the outer frame outside.Protection gas passage length of the invention is adjustable and the accuracy that demonstration fixture aids in teaching process is effectively ensured.
Description
Technical field
The present invention relates to laser welding field, specifically a kind of bidifly photocoagulation integrated form weldering
Joint.
Background technology
Double acting laser welding mechanism body based on robot needs to plan machine by teaching
The welding track of device people, because welding procedure is complicated, the structure type of weldment is not quite similar again,
So that laser welding head of the prior art easily produces interference, and protect gas shielded position not
With adjustability, it is difficult to which more effectively protection is welded, in addition robotic's frock teaching process
Comparatively laborious, the accuracy that demonstration fixture auxiliary teaching process how is effectively ensured is also in practice
The problem for needing to solve.
The content of the invention
It is an object of the invention to provide a kind of bidifly photocoagulation integrated form plumb joint, protection gas leads to
Road adjustable length and be effectively ensured demonstration fixture aid in teaching process accuracy.
The purpose of the present invention is achieved through the following technical solutions：
A kind of bidifly photocoagulation integrated form plumb joint, including it is laser head interface, nozzle base, outer
Ji Zuo ﹑ L-type Luo line Jie Tou ﹑ inner core covers, outer adapter sleeve and auxiliary laser component, nozzle base
Installed in laser head interface downside, outer frame is sleeved on the nozzle base, the spray
Mouth pedestal includes base body and hollow connecting shaft, and the outer frame includes mounting body and axle sleeve
Portion, forms protection air cavity between the mounting body of the outer frame and the base body of nozzle base
Body, inner core cover is sleeved in the connecting shaft of nozzle base, in the connecting shaft inside and inner core cover
Portion is communicated to form welding laser channeling, and outer adapter sleeve is sleeved in the shaft sleeve part of outer frame, described
Between the shaft sleeve part of outer frame and the connecting shaft of nozzle base and the outer adapter sleeve and inner core
Communicate to form protection gas passage between set, the outer frame both sides are fixed with L-type nipple,
The auxiliary laser frame component is arranged at the outer frame outside.
The inner core cover is threadedly coupled with the connecting shaft of nozzle base, and the welding laser channeling is long
Degree is adjusted by screwing the inner core cover.
The stage casing of the connecting shaft is provided with one section of threaded portion, one end of the inner core cover and the company
The threaded portion connection in spindle stage casing.
Connecting shaft lateral surface and inner core cover medial surface on the downside of the threaded portion are smooth surface, in institute
State threaded portion downside and be provided with jackscrew, the inner core cover is solid with the connecting shaft by the jackscrew
It is fixed.
The outer adapter sleeve is threadedly coupled with the shaft sleeve part of outer frame, the protection gas passage length
Adjusted by screwing the outer adapter sleeve.
The shaft sleeve part is provided with one section of threaded portion, the outer company near one end of the mounting body
One end of female connector is to be connected with the threaded portion.
Shaft sleeve part outside and outer adapter sleeve inner side on the downside of the threaded portion are smooth surface, the spiral shell
Line subordinate side is provided with jackscrew, and the outer adapter sleeve is fixed by the jackscrew with the shaft sleeve part.
The laser head interface is provided with a rest pad, the rest pad to laser head interface outside
Side extends, and the auxiliary laser frame component is arranged on the free end of the rest pad.
The auxiliary laser frame component includes auxiliary laser frame great Bei ﹑ auxiliary laser frame elbow joints
With auxiliary laser frame chuck, the auxiliary laser frame large arm is arranged on the rest pad, described
Auxiliary laser frame Jia Tou ﹑ auxiliary laser frame elbow joints and auxiliary laser frame large arm are hinged successively, auxiliary
LASER Light Source is helped to be arranged on the auxiliary laser frame chuck.
The auxiliary laser frame Jia Tou ﹑ auxiliary laser frame elbow joints and auxiliary laser frame large arm exist
It is determined that fixed behind welding focal position.
Advantages of the present invention is with good effect：
1st, inner core cover of the invention is sleeved in the connecting shaft of nozzle base, in the connecting shaft
Portion and inner core cover inside constitute welding laser channeling, be can adjust by screwing the inner core cover
The length of the welding laser channeling, outer adapter sleeve of the invention is sleeved on the axle sleeve of outer frame
Portion, between the shaft sleeve part of the outer frame and the connecting shaft of nozzle base and the outer adapter sleeve
The protection gas passage for communicating is formed between inner core cover, by screwing the outer adapter sleeve
The adjustment protection gas passage length.
2nd, the present invention opens laser first in robot welding campaign teaching programming process
Guiding radiant, laser guiding light is coaxial with inner core cover, auxiliary laser and the laser
Device guiding light intersects at welding focal position, so that the attitude of fixed auxiliary laser frame component,
I.e. fixed welding laser and auxiliary laser focal position, i.e. using being determined during teaching
Welding laser and auxiliary laser focal position carry out teaching.
Brief description of the drawings
Fig. 1 is front view of the invention,
Fig. 2 is enlarged diagram at A in Fig. 1,
Fig. 3 is side view of the invention in Fig. 1.
Wherein, 1 is laser head interface, and 2 is nozzle base, and 3 is outer frame, and 4 is L-type spiral shell
Line joint, 5 is jackscrew, and 6 is inner core cover, and 7 is outer adapter sleeve, and 8 is soket head cap screw, 9
It is auxiliary laser frame chuck, 10 is auxiliary laser frame elbow joint, and 11 is auxiliary laser frame large arm,
12 is screw, and 13 is rest pad, and 14 is base body, and 15 is connecting shaft, and 16 is threaded portion,
17 is jackscrew, and 18 is mounting body, and 19 is shaft sleeve part, and 20 is threaded portion.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figures 1 to 3, the present invention includes the ﹑ outer frames of 1 ﹑ nozzle bases of laser head interface 2
The outer adapter sleeves 7 of the ﹑ of 34 ﹑ inner core covers of ﹑ L-types nipple 6 and auxiliary laser frame component, wherein
Laser head interface 1 is fixed on laser head by with laser head interference fit, and nozzle base 2 is pacified
Mounted in the downside of the laser head interface 1, as shown in Fig. 1~2, the nozzle base 2 includes
The connecting shaft 15 of base body 14 and inner hollow, the base body 14 of the nozzle base 2 leads to
Screw 12 and laser head interface 1 is crossed to be connected, and the base body 14 of the nozzle base 2 with swash
Bare headed interface 1 coordinates positioning, the connecting shaft 15 to be vertically installed in the pedestal by seam
The downside of body 14, as shown in Fig. 2 the inner core cover 6 is sleeved on the company of the nozzle base 2
In spindle 15, the stage casing of the connecting shaft 15 is provided with one section of threaded portion 16, the inner core cover 6
One end be to be threadedly coupled with the threaded portion 16 in the stage casing of the connecting shaft 15, the threaded portion
The lateral surface of connecting shaft 15 and the medial surface of inner core cover 6 of 16 downsides are smooth surface, in the screw thread
The downside of portion 16 is provided with jackscrew 17, and the inner core cover 6 is by the jackscrew 17 and the connection
Axle 15 is fixed, and the jackscrew 17 is divided into the both sides of inner core cover 6.
Outer frame 3 is sleeved on the nozzle base 2, as shown in Fig. 1~2, the outer base
Seat 3 includes mounting body 18 and shaft sleeve part 19, wherein the mounting body 18 is set in spray
The outside of base body 14 of mouth pedestal 2, the shaft sleeve part 19 is set in the connection of nozzle base 2
The outside of axle 15, and inner core cover 6 in the connecting shaft 15 is also disposed on the outer base
In the shaft sleeve part 19 of seat 3, mounting body 18 and the nozzle base 2 of the outer frame 3
Base body 14 be connected, the mounting body 18 is tapered, and the mounting body 18
The one end being relatively large in diameter is threadedly coupled with the base body 14 of the nozzle base 2, such as Fig. 2 institutes
Show, the outer adapter sleeve 7 is set in the shaft sleeve part 19 of the outer frame 3, the shaft sleeve part
19 are provided with one section of threaded portion 20, the outer adapter sleeve 7 near one end of the mounting body 18
One end be to be threadedly coupled with the threaded portion 20, the shaft sleeve part of the downside of the threaded portion 20
19 outsides and the inner side of outer adapter sleeve 7 are smooth surface, and the downside of the threaded portion 20 is provided with jackscrew 5,
The outer adapter sleeve 7 is fixed by the jackscrew 5 with the shaft sleeve part 19, the jackscrew 5
Set up separately and the both sides of outer adapter sleeve 7.
As shown in figure 1, the both sides of the outer frame 3 are provided with the L-type nipple 4, institute
L-type nipple 4 is stated for connecting outside tracheae to be input into cavity protection gas.In the present embodiment,
The model 112-10B-1640 of the L-type nipple 4, manufacturer is Germany Festo
Company.
As shown in figure 1, the auxiliary laser frame component is arranged at the side of the outer frame 3,
A rest pad 13 is provided with the laser head interface 1, the rest pad 13 is to laser head
The outside of interface 1 extends, the auxiliary laser frame component be arranged on the rest pad 13 from
By holding.The auxiliary laser frame component includes the ﹑ auxiliary laser frame elbows of auxiliary laser frame large arm 11
Joint 10 and auxiliary laser frame chuck 9, the auxiliary laser frame large arm 11 are arranged on the branch
In supporting block 13, the ﹑ auxiliary laser framves elbow joint 10 of the auxiliary laser frame chuck 9 and auxiliary swash
Light frame large arm 11 is sequentially connected, and is provided with for auxiliary in the head of the auxiliary laser frame chuck 9
Help the soket head cap screw 8 of LASER Light Source, the ﹑ auxiliary laser frame elbows of the auxiliary laser frame chuck 9
Joint 10 and auxiliary laser frame large arm 11 form three-dimensional space linkage, it is ensured that auxiliary
The LASER Light Source direction adjustment of the head of laser frame chuck 9.
Operation principle of the invention is：
The inner core cover 6 is sleeved in the connecting shaft 15 of nozzle base 2, the connecting shaft 15
The internal and inside of inner core cover 6 constitutes welding laser channeling, the inner core cover 6 and the connection
Axle 15 is threadedly coupled, and the position of inner core cover 6 is can adjust by screwing the inner core cover 6, from
And adjust the length of the welding laser channeling.
Outer frame 3 is sleeved on the nozzle base 2, wherein the mounting body of outer frame 3
Protection air cavity is formed between 18 and the base body 14 of nozzle base 2, protection gas is by L-type spiral shell
Line joint 4 enters in the protection air cavity, and outer adapter sleeve 7 is sleeved on the axle sleeve of outer frame 3
Portion 19, between the shaft sleeve part 19 of the outer frame 3 and the connecting shaft 15 of nozzle base 2 with
And the protection gas passage for communicating is formed between the outer adapter sleeve 7 and inner core cover 6, protect gas
Entered into the protection gas passage and exported by the protection air cavity, realize protection gas shielded
Weldment function.
The outer adapter sleeve 7 is sleeved in the shaft sleeve part 19 of outer frame 3, with the shaft sleeve part
It is threaded connection between 19, outer adapter sleeve 7 is can adjust by screwing the outer adapter sleeve 7
Position, so as to adjust the protection gas passage length.
In robot welding campaign teaching programming process, laser guiding light light is opened first
Source, the laser guiding light is coaxial with inner core cover, and adjustment auxiliary laser direction swashs auxiliary
Light intersects at welding focal position with laser guiding light, and welding focal position is solid after determining
Determine the attitude of auxiliary laser frame component, namely fixed welding laser and auxiliary laser focal position,
Carried out using identified welding laser and auxiliary laser focal position during teaching
Teaching.
Claims (10)
1. a kind of bidifly photocoagulation integrated form plumb joint, it is characterised in that：Connect including laser head
Mouth (1), nozzle base (2), outer frame (3) ﹑ L-types nipple (4) ﹑ inner core covers
(6), outer adapter sleeve (7) and auxiliary laser component, nozzle base (2) swash installed in described
Bare headed interface (1) downside, outer frame (3) is sleeved on the nozzle base (2), institute
Stating nozzle base (2) includes base body (14) and hollow connecting shaft (15), the outer base
Seat (3) includes mounting body (18) and shaft sleeve part (19), the peace of the outer frame (3)
Protection air cavity is formed between dress pedestal (18) and the base body (14) of nozzle base (2),
Inner core cover (6) is sleeved in the connecting shaft of nozzle base (2) (15), the connecting shaft (15)
Communicate to form welding laser channeling inside internal and inner core cover (6), outer adapter sleeve (7) suit
In the shaft sleeve part (19) of outer frame (3), the shaft sleeve part (19) of the outer frame (3)
And the connecting shaft (15) of nozzle base (2) between and the outer adapter sleeve (7) and inner core
Communicate to form protection gas passage between set (6), outer frame (3) both sides are fixed with L-type
Nipple (4), the auxiliary laser frame component is arranged at the outer frame (3) outside.
2. bidifly photocoagulation integrated form plumb joint according to claim 1, its feature exists
In：The inner core cover (6) is threadedly coupled with the connecting shaft (15) of nozzle base (2), institute
State welding laser channeling length and adjusted by screwing the inner core cover (6).
3. bidifly photocoagulation integrated form plumb joint according to claim 2, its feature exists
In：The stage casing of the connecting shaft (15) is provided with one section of threaded portion (16), the inner core cover (6)
One end be threadedly coupled with the threaded portion (16) in the connecting shaft (15) stage casing.
4. bidifly photocoagulation integrated form plumb joint according to claim 3, its feature exists
In：In connecting shaft (15) lateral surface and inner core cover (6) on the downside of the threaded portion (16)
Side is smooth surface, and jackscrew (17), the inner core are provided with the threaded portion (16) downside
Set (6) is fixed with the connecting shaft (15) by the jackscrew (17).
5. bidifly photocoagulation integrated form plumb joint according to claim 1, its feature exists
In：The outer adapter sleeve (7) is threadedly coupled with the shaft sleeve part (19) of outer frame (3), institute
State protection gas passage length and adjusted by screwing the outer adapter sleeve (7).
6. bidifly photocoagulation integrated form plumb joint according to claim 5, its feature exists
In：The shaft sleeve part (19) is provided with one section of screw thread near one end of the mounting body (18)
Portion (20), one end of the outer adapter sleeve (7) is to be threadedly coupled with the threaded portion (20).
7. bidifly photocoagulation integrated form plumb joint according to claim 6, its feature exists
In：In shaft sleeve part (19) outside and outer adapter sleeve (7) on the downside of the threaded portion (20)
Side is smooth surface, and threaded portion (20) downside is provided with jackscrew (5), the outer adapter sleeve (7)
It is fixed with the shaft sleeve part (19) by the jackscrew (5).
8. bidifly photocoagulation integrated form plumb joint according to claim 1, its feature exists
In：The laser head interface (1) is provided with a rest pad (13), the rest pad (13)
Extend to laser head interface (1) outside, the auxiliary laser frame component is arranged on the supporting
The free end of block (13).
9. bidifly photocoagulation integrated form plumb joint according to claim 8, its feature exists
In：The auxiliary laser frame component includes auxiliary laser frame large arm (11) ﹑ auxiliary laser frame elbows
Joint (10) and auxiliary laser frame chuck (9), the auxiliary laser frame large arm (11) are installed
On the rest pad (13), auxiliary laser frame chuck (the 9) ﹑ auxiliary laser frame elbows
Joint (10) and auxiliary laser frame large arm (11) are hinged successively, and auxiliary laser light source is arranged at
On the auxiliary laser frame chuck (9).
10. bidifly photocoagulation integrated form plumb joint according to claim 9, its feature exists
In：(9) ﹑ auxiliary laser framves elbow joint (10) and auxiliary swash the auxiliary laser frame chuck
Light frame large arm (11) is it is determined that fixed behind welding focal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903915.8A CN106853550B (en) | 2015-12-09 | 2015-12-09 | A kind of bidifly photocoagulation integrated form plumb joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903915.8A CN106853550B (en) | 2015-12-09 | 2015-12-09 | A kind of bidifly photocoagulation integrated form plumb joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106853550A true CN106853550A (en) | 2017-06-16 |
| CN106853550B CN106853550B (en) | 2018-08-24 |
Family
ID=59131359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903915.8A Expired - Fee Related CN106853550B (en) | 2015-12-09 | 2015-12-09 | A kind of bidifly photocoagulation integrated form plumb joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106853550B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264291A (en) * | 1987-04-22 | 1988-11-01 | Amada Co Ltd | Laser beam machining head |
| CN1142794A (en) * | 1994-01-27 | 1997-02-12 | 铬合金气体涡轮公司 | Laser/powder metal coat spray head |
| EP2085173A1 (en) * | 2005-09-09 | 2009-08-05 | Fronius International GmbH | Method for process control of a robot welding assembly with maintenance periodical check for changing the gas nozzle |
| CN201823642U (en) * | 2010-08-17 | 2011-05-11 | 华东理工大学 | Laser cladding coaxial powder delivery nozzle comprising guide protective air flow |
| JP2012000648A (en) * | 2010-06-17 | 2012-01-05 | Laserx:Kk | Nozzle for use both in laser cutting and laser welding, laser beam machine using the same, and method of plate butt welding using the same |
| CN103212802A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Coaxial type nozzle used for laser micro machining of thin-walled tube |
| CN203664925U (en) * | 2014-01-14 | 2014-06-25 | 江苏中科四象激光科技有限公司 | Externally-mounted water cooling transmission focusing laser welding work head |
| CN104708198A (en) * | 2015-03-02 | 2015-06-17 | 大族激光科技产业集团股份有限公司 | Cutting nozzle airflow cavity device and cutting nozzle system |
-
2015
- 2015-12-09 CN CN201510903915.8A patent/CN106853550B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63264291A (en) * | 1987-04-22 | 1988-11-01 | Amada Co Ltd | Laser beam machining head |
| CN1142794A (en) * | 1994-01-27 | 1997-02-12 | 铬合金气体涡轮公司 | Laser/powder metal coat spray head |
| EP2085173A1 (en) * | 2005-09-09 | 2009-08-05 | Fronius International GmbH | Method for process control of a robot welding assembly with maintenance periodical check for changing the gas nozzle |
| JP2012000648A (en) * | 2010-06-17 | 2012-01-05 | Laserx:Kk | Nozzle for use both in laser cutting and laser welding, laser beam machine using the same, and method of plate butt welding using the same |
| CN201823642U (en) * | 2010-08-17 | 2011-05-11 | 华东理工大学 | Laser cladding coaxial powder delivery nozzle comprising guide protective air flow |
| CN103212802A (en) * | 2012-01-19 | 2013-07-24 | 昆山思拓机器有限公司 | Coaxial type nozzle used for laser micro machining of thin-walled tube |
| CN203664925U (en) * | 2014-01-14 | 2014-06-25 | 江苏中科四象激光科技有限公司 | Externally-mounted water cooling transmission focusing laser welding work head |
| CN104708198A (en) * | 2015-03-02 | 2015-06-17 | 大族激光科技产业集团股份有限公司 | Cutting nozzle airflow cavity device and cutting nozzle system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106853550B (en) | 2018-08-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5959382A (en) | Fixture for tool | |
| CN106853550A (en) | A kind of bidifly photocoagulation integrated form plumb joint | |
| CN206653073U (en) | Galvanometer light path perpendicularity regulating device | |
| CN205138428U (en) | Three -dimensional laser scanning appearance dust keeper | |
| CN207387030U (en) | A kind of laser-beam welding machine polished | |
| CN104281012B (en) | A kind of gas shield camera lens | |
| CN106272511B (en) | A kind of flexible vacuum absorption hand for automatic discharging | |
| CN105397400B (en) | Butt joint device for pipe connectors | |
| CN107131377A (en) | The method that bend pipe mouth of pipe docking is carried out using straight tube mouth of pipe heat-melting butt-joint equipment | |
| CN206913178U (en) | A kind of ears encircling type robot joint structure | |
| CN207022643U (en) | A kind of plant box | |
| CN105834665B (en) | New cone tube spot-welding equipment structure and its welding assembly technique | |
| CN210971256U (en) | High-sealing automobile steering device | |
| CN207394181U (en) | It is a kind of can be with the band liner pipe connector of adjustment length | |
| CN206898800U (en) | A kind of Digit Control Machine Tool machining auxiliary fixing structure | |
| CN105695651A (en) | Positioning device and method of blast furnace air supply device at bustle pipe installation position | |
| CN207728675U (en) | A kind of pipe guardrail connector | |
| CN207333800U (en) | A kind of tap | |
| CN207757060U (en) | One kind protecting tool for small-bore high alloy steel pipe internal argon-filling | |
| CN105328382B (en) | Positioning tool for installing and welding of nozzle pipe and elbow in venturi scrubber device | |
| CN207634737U (en) | A kind of copper sleeve of Pneumatic pipe valve | |
| CN206112348U (en) | Sealing joint device | |
| CN107855692A (en) | Tube-sheet Welding robotic gun gas shield device | |
| CN107155688A (en) | A kind of plant box | |
| CN205033025U (en) | Grind bed core stick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 Termination date: 20201209 |