CN109623084A - Damper welder - Google Patents
Damper welder Download PDFInfo
- Publication number
- CN109623084A CN109623084A CN201910095593.7A CN201910095593A CN109623084A CN 109623084 A CN109623084 A CN 109623084A CN 201910095593 A CN201910095593 A CN 201910095593A CN 109623084 A CN109623084 A CN 109623084A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- welded post
- shaft
- piston
- spring
- 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
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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
- B23K5/00—Gas flame welding
- B23K5/006—Gas flame welding specially adapted for particular articles or work
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- 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
- B23K5/00—Gas flame welding
- B23K5/22—Auxiliary equipment, e.g. backings, guides
-
- 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
- B23K5/00—Gas flame welding
- B23K5/22—Auxiliary equipment, e.g. backings, guides
- B23K5/24—Arrangements for supporting torches
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention relates to damper technical field of processing equipment, specifically disclose a kind of damper welder, including telescopic cylinder, cylinder body and welded post, the lug boss for placing end cap is connected at the top of welded post, air flue is equipped in welded post and lug boss, the junction of lug boss and welded post offers annular groove, and igniter and air nozzle are equipped in annular groove, and air nozzle is connected to air flue；The output end of telescopic cylinder is connected with the first spring and connecting rod, and the first spring is connected with pressing plate；Piston is slidably connected in cylinder body, cylinder body is divided into upper chamber and lower chambers by piston, lower chambers are communicated with air inlet pipe and appendix, appendix is connected to air flue, relief valve and the first check valve are installed on appendix, second one-way valve, mixed gas of the bottom chamber full of welding burning are installed in air inlet pipe；Piston is connected with piston rod, and piston rod is connect with connecting rod.The present invention can carry out fixed point welding to oil pipe and end cap, avoid human weld, it is ensured that the stability of welding quality.
Description
Technical field
The present invention relates to damper technical field of processing equipment, specifically disclose a kind of damper welder.
Background technique
Damper is widely used in motor-driven for concussion when inhibiting rebound after spring shock-absorbing and from the impact on road surface
Vehicle, such as automobile, motorcycle.Damper can speed up the decaying of Vehicular vibration, improve the ride performance of vehicle.It is hindered from generating
The angular divisions of damping material, damper are broadly divided into fluid pressure type and two kinds of inflatable.The damper of fluid pressure type mainly include oil cylinder,
Piston and piston rod, wherein oil cylinder is not integrally formed, but it is open at one end, another to be welded by components such as oil pipe, end caps
One end sealing tubular article after, to it inside add damping oil, then piston is installed again, work is finally sealed.It is worth note
Meaning, the shape of the shape of the end cap in some dampers similar to straw hat: central part is convex.
Currently, in existing damper oil cylinder welding manner are as follows: by oil pipe it is fixed after, the alignment of staff's hand torch
Welding position is welded, and after the completion of welding, manually removes the oil pipe after being welded.Such welding manner, welding
Quality directly influenced by the highly skilled degree of staff, welding quality unstable.Moreover, by staff's hand
It is dynamic to remove the oil pipe after being welded, for staff, heavy workload, and the efficiency welded is lower.
Summary of the invention
The invention is intended to provide a kind of damper welder, to solve to weld the oil of damper manually in the prior art
There are problems that welding quality unstable and low efficiency when cylinder.
In order to achieve the above object, base case of the invention are as follows: damper welder, including for being socketed oil pipe
Welded post, is fixedly connected with the lug boss for placing end cap central part at the top of the welded post, welded post and lug boss
Inside offers air flue, and the junction of lug boss and welded post offers the annular groove being circumferentially arranged along welded post, installation in annular groove
There are igniter and multiple air nozzles, air nozzle is connected to the air flue；Telescopic cylinder is installed above the welded post, is stretched
The output end of cylinder is fixedly connected with the first spring and horizontally disposed connecting rod, and the first spring is close to the fixed company in one end of welded post
It is connected to pressing plate；Cylinder body is installed by telescopic cylinder, piston is slidably connected in cylinder body, cylinder body separation is independent epicoele by piston
Room and lower chambers, lower chambers are communicated with air inlet pipe and appendix, and appendix is connected to the air flue, and pressure release is equipped on appendix
Valve and by the first check valve of gas export lower chambers, is equipped with the second one-way valve for introducing gas into lower chambers in air inlet pipe,
Mixed gas of the bottom chamber full of welding burning；The piston is fixedly connected with piston rod, the top of piston rod and connecting rod
Connection.
The working principle and beneficial effect of this base case is:
1, pressing plate is pushed using telescopic cylinder, so that end cap is compressed using pressing plate, so that the end of end cap and oil pipe is being welded
It is fitted closely in termination process, end cap is avoided to move in the welding process, guarantee welding quality；Made simultaneously using telescopic cylinder
It is sprayed so that the mixed gas of the welding burning of cylinder body bottom chamber enters in air flue through appendix through air nozzle for power source
It is lighted after out, realizes and the fixed point of end cap and oil pipe end is welded, avoid staff's hand torch from welding, to avoid
Welding quality is influenced by staff's fluency, improves the stability of welding quality, while improving welding efficiency.
2, in this base case, the welding to end cap and oil pipe be from inside carry out, compared to the prior art in
From outside for the welding that end cap and oil pipe carry out, the influence on interior welds work not receiving end hat brim edge, welding is more
It is easy, and will not influence the appearance of welding rear end cap and oil pipe.Also, when interior welds, the contact position of end cap and oil pipe is (to be welded
The place of connecing) inner surface take the lead in it is heated be welded together, for outside weldings, the former more can ensure that end cap connects with oil pipe
The inner surface of synapsis can weld together completely.
3, in this base case, the setting of lug boss can facilitate staff to place end cap, and lug boss can extend into
The central part of end cap avoids end cap that the movement in horizontal direction occurs in the welding process, to avoid the mistake of end cap and oil pipe
Position, it is ensured that welding quality.
4, due to being mounted with relief valve on appendix, the mixed gas of bottom chamber ability after pressing plate compresses end cap
It can enter in the air flue of welded post by appendix, mixed gas is avoided to enter air flue in advance.
It further, further include rack, the bottom of the welded post is fixedly connected with horizontally disposed transverse slat, the side wall of transverse slat
It is fixedly connected with shaft, shaft is rotatablely connected on the rack.
After the completion of welding, staff's rotating shaft or transverse slat, so that the welded post being fixedly connected on transverse slat turns
Dynamic, after welded post turns over 90 °, the oil pipe in welded post is slided along welded post under the effect of gravity, to automatically disengage welding
Column, it is easy to operate, avoid staff from manually removing oil pipe from welded post.
Further, the shaft has been fixedly and coaxially connected unilateral bearing, is fixedly connected on the periphery wall of unilateral bearing outer
Gear ring；The connecting rod is fixedly connected with vertical bar, and vertical bar is equipped with tooth-strip part, and tooth-strip part can be engaged with the outer gear ring.
When telescopic cylinder band dynamic pressure plate is mobile to welded post direction, the tooth-strip part on vertical bar is engaged with outer gear ring, this mistake
Cheng Zhong, unilateral bearing rotates and shaft not can rotate；When telescopic cylinder is mobile to the direction far from welded post with dynamic pressure plate, erect
Tooth-strip part on bar will be engaged with outer gear ring again, and during this, unilateral bearing and shaft rotate together, then, transverse slat, cross
Welded post on plate rotates, and the oil pipe in welded post is slided along welded post under the effect of gravity, to automatically disengage welding
Column avoids staff from removing oil pipe manually, reduces the amount of labour of staff.
Further, fixed plate is fixedly connected in the rack, the side of fixed plate towards shaft is fixedly connected with second
Spring, second spring are fixedly connected with flexible strand far from one end of fixed plate, the one end of flexible strand far from second spring with it is described
Shaft is fixedly connected.
During shaft is rotated together with unilateral bearing to realize the automatically disengaging of oil pipe, flexible strand coiling is in shaft
On, while stretching second spring.Therefore, when the tooth-strip part of vertical bar is no longer engaged with outer gear ring, second spring applies flexible strand
Add pulling force, flexible strip turn axis rotates backward, so that welded post resets, avoids staff's hand-reset welded post.
Further, the rotational angle of the shaft is greater than 90 °.
Ensure that the rotational angle of welded post is greater than 90 °, so that it is guaranteed that oil pipe can be detached from from welded post automatically.
Further, the rotational angle of the shaft is less than 360 °.
The rotational angle for limiting welded post avoids appendix that coiling occurs.
Further, it is fixedly connected with positive stop strip in the shaft, positive stop strip offsets with fixed plate.
When shaft rotates backward, welded post resets, positive stop strip and fixed plate offset and can be avoided shaft in rotary inertia
Under the action of continue to rotate.
Further, collecting box is installed below the transverse slat.
Collecting box can collect the oil pipe automatically disengaged from welded post, add to transport the oil pipe after welding to next
Building site point.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of damper welder in the embodiment of the present invention；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1.
Specific embodiment
It is further described below by specific embodiment:
Appended drawing reference in Figure of description include: rack 1, welded post 2, lug boss 3, air flue 4, annular groove 5, igniter 6,
Air nozzle 7, telescopic cylinder 8, the first spring 9, connecting rod 10, pressing plate 11, cylinder body 12, piston 121, piston rod 122, upper chamber 123,
Lower chambers 124, air inlet pipe 13, appendix 14, air storage chamber 15, relief valve 16, the first check valve 17, second one-way valve 18, transverse slat
19, channel 20, shaft 21, unilateral bearing 22, outer gear ring 23, vertical bar 24, tooth-strip part 25, fixed plate 26, second spring 27, flexibility
Rope 28, positive stop strip 29, oil pipe 30, end cap 31.
Embodiment damper welder as shown in Figure 1: substantially, the welded post including rack 1 and for being socketed oil pipe 30
2, the top that oil pipe 30 is socketed in welded post 2 in welded post 2 is fixedly connected with the lug boss 3 for placing 31 central part of end cap,
The inside of welded post 2 and lug boss 3 offers air flue 4, and the junction of lug boss 3 and welded post 2 offers circumferential along welded post 2
The annular groove 5 of setting is equipped with igniter 6 in annular groove 5 and is uniformly arranged four air nozzles 7, air nozzle 7 and gas along annular groove 5 is circumferential
Road 4 is connected to.
The top of welded post 2 is equipped with telescopic cylinder 8, and the output end of telescopic cylinder 8 is fixedly connected with the first spring 9 and water
The connecting rod 10 of flat setting, the lower end of the first spring 9 is fixedly connected with pressing plate 11.Cylinder body 12, cylinder body 12 are installed by telescopic cylinder 8
Piston 121 is inside slidably connected, piston 121 is fixedly connected with piston rod 122, and the top of piston rod 122 is connect with connecting rod 10.
The separation of cylinder body 12 is independent upper chamber 123 and lower chambers 124 by piston 121, and lower chambers 124 are communicated with air inlet pipe
13 and appendix 14, air inlet pipe 13 be communicated with air storage chamber 15, appendix 14 is connected to air flue 4.Pressure release is installed on appendix 14
Valve 16 and by the first check valve 17 of gas export lower chambers 124, is equipped in air inlet pipe 13 and introduces gas into lower chambers 124
Second one-way valve 18.In the present embodiment, the both ends of appendix 14 are hard tube, centre is hose, and relief valve 16 is arranged close to weld
On the hard tube for connecing column 2, the first check valve 17 is arranged close on the hard tube of lower chambers 124.In air storage chamber 15 and lower chambers 124
Mixed gas full of welding burning, in the present embodiment, mixed gas selects oxygen and acetylene.
The bottom of welded post 2 is fixedly connected with horizontally disposed transverse slat 19, and the lower section of transverse slat 19 is equipped with collecting box.Welding
Channel 20 is offered in portion and transverse slat 19, channel 20 is connected to annular groove 5 and the external world.The right side wall of transverse slat 19 is fixedly connected with shaft
21, shaft 21 is rotatably connected in rack 1.As shown in connection with fig. 2, shaft 21 has been fixedly and coaxially connected unilateral bearing 22, one-way shaft
It holding and is fixedly connected with outer gear ring 23 on 22 periphery wall, connecting rod 10 is fixedly connected with vertical bar 24, and vertical bar 24 is equipped with tooth-strip part 25,
Tooth-strip part 25 can be engaged with outer gear ring 23.The rotational angle of shaft 21 is greater than 90 ° and less than 360 °.
Fixed plate 26 is fixedly connected in rack 1, the lower end of fixed plate 26 is fixedly connected with second spring 27, second spring
27 lower end is fixedly connected with flexible strand 28, and the lower end of flexible strand 28 is fixedly connected in shaft 21, and flexible strand 28 is in exceptionally straight
State.Shaft 21 is fixedly connected with positive stop strip 29, and top and the fixed plate 26 of positive stop strip 29 offset.
Specific implementation process is as follows: being first placed on lug boss 3, makes in welded post 2, then by end cap 31 by 30 sets of oil pipe
Lug boss 3 is obtained to protrude into the central part of end cap 31.Then, start telescopic cylinder 8, the output end of telescopic cylinder 8 drives the first bullet
Spring 9, connecting rod 10 and pressing plate 11 move down, and final pressing plate 11 contacts the top of end cap 31 and applies downward pressure to end cap 31
Power avoids end cap 31 from moving in the welding process so that the lower end surface of end cap 31 and the upper surface of oil pipe 30 fit closely.
In the above process, the piston rod 122 being fixedly connected with connecting rod 10 is moved down, and then pushes piston 121 to downslide
It is dynamic, so that the volume of lower chambers 124 reduces, internal pressure increases, when the internal pressure of lower chambers 124 reaches the cracking pressure of relief valve 16
When, relief valve 16 is opened, and the mixed gas in lower chambers 124 enters in air flue 4 through appendix 14, then sprays through air nozzle 7, this
When igniter 6 light mixed gas, the contact position (place to be welded) of end cap 31 and oil pipe 30 is welded.It is circumferential along annular groove 5
The flame that four air nozzles 7 being uniformly arranged spray can the contact position to end cap 31 and oil pipe 30 welded comprehensively, avoid
Rotation air nozzle 7 rotates oil pipe 30 and end cap 31 to realize comprehensive welding to its contact position.
During connecting rod 10 moves down, the vertical bar 24 being fixedly connected with connecting rod 10 is moved down, and pressing plate 11 contacts
Before end cap 31, tooth-strip part 25 on vertical bar 24 and outer gear ring 23 are intermeshed so that unilateral bearing 22 rotate counterclockwise (in Fig. 1,
See from left to right), and shaft 21 does not rotate at this time.Here it is worth noting that between shaft 21 and rack 1 there is rotation to rub
Power is wiped, and the influence when rotation of unilateral bearing 22 to shaft 21 overcomes rotation friction insufficient for shaft 21, therefore, at this time
Shaft 21 can't rotate.
Then, the output end of telescopic cylinder 8 drives the first spring 9, connecting rod 10 and pressing plate 11 to move up reset.Work as connecting rod
10 when beginning to move up, and piston rod 122 follows connecting rod 10 to move up, and the volume of lower chambers 124 increases, and internal pressure reduces,
Relief valve 16 is closed immediately at this time, and mixed gas does not enter back into air flue 4, flame extinction, stops welding, completes end cap 31 and oil
The welding of pipe 30.Simultaneously as the internal pressure of lower chambers 124 reduces, mixed gas enters cavity of resorption through air inlet pipe 13 from air storage chamber 15
In room 124, in case next time uses.
During connecting rod 10 moves up, vertical bar 24 follows connecting rod 10 to move up, after pressing plate 11 leaves end cap 31,
Tooth-strip part 25 on vertical bar 24 is intermeshed with outer gear ring 23 again, and unilateral bearing 22 is locked in the clockwise direction freely to be turned
Dynamic (in Fig. 1, seeing from left to right) drives shaft 21 to rotate clockwise 120 °, and then, the transverse slat 19 being fixedly connected with shaft 21 is suitable
Hour hands rotate 120 °, cover oil pipe 30 in welded post 2 under the effect of gravity, slide along welded post 2, realize the automatic of oil pipe 30
It is detached from, and the oil pipe 30 for being detached from welded post 2 is fallen in collecting box.
During shaft 21 rotates clockwise, for 28 coiling of flexible strand in shaft 21, second spring 27 is stretched work
With and it is elongated.With the reset of vertical bar 24, when the tooth-strip part 25 on vertical bar 24 is no longer engaged with gear ring, flexible strand 28 is second
Shaft 21 is driven to rotate counterclockwise reset under the pulling force of spring 27, and the positive stop strip 29 being fixedly connected in shaft 21 is in shaft 21
It offsets again with fixed plate 26 after rotating counterclockwise reset, shaft 21 is avoided to continue to rotate under the action of rotary inertia.
Then, new 30 sets of oil pipe are placed on lug boss 3 in welded post 2, then by new end cap 31, telescopic cylinder
8 output end continues that the first spring 9, connecting rod 10 and pressing plate 11 is driven to move down, and repeats the above process, after completing welding
Close telescopic cylinder 8.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and practicability of the invention.
Claims (8)
1. damper welder, including the welded post for being socketed oil pipe, it is characterised in that: the top of the welded post is fixed
It is connected with the lug boss for placing end cap central part, the inside of welded post and lug boss offers air flue, lug boss and welding
The junction of column offers the annular groove being circumferentially arranged along welded post, and igniter and multiple air nozzles, air nozzle are equipped in annular groove
It is connected to the air flue；Telescopic cylinder is installed, the output end of telescopic cylinder is fixedly connected with first above the welded post
Spring and horizontally disposed connecting rod, the first spring are fixedly connected with pressing plate close to one end of welded post；It is equipped with by telescopic cylinder
Cylinder body, slidably connects piston in cylinder body, and cylinder body separation is independent upper chamber and lower chambers by piston, lower chambers be communicated with into
Tracheae and appendix, appendix are connected to the air flue, relief valve are equipped on appendix and by the of gas export lower chambers
One check valve is equipped with the second one-way valve for introducing gas into lower chambers in air inlet pipe, and bottom chamber is full of welding burning
Mixed gas；The piston is fixedly connected with piston rod, and the top of piston rod is connect with connecting rod.
2. damper welder according to claim 1, it is characterised in that: it further include rack, the bottom of the welded post
Portion is fixedly connected with horizontally disposed transverse slat, and the side wall of transverse slat is fixedly connected with shaft, and shaft is rotatablely connected on the rack.
3. damper welder according to claim 2, it is characterised in that: the shaft has been fixedly and coaxially connected unidirectionally
Bearing is fixedly connected with outer gear ring on the periphery wall of unilateral bearing；The connecting rod is fixedly connected with vertical bar, and vertical bar is equipped with rack gear
Portion, tooth-strip part can be engaged with the outer gear ring.
4. damper welder according to claim 3, it is characterised in that: be fixedly connected with fixation in the rack
Plate, the side of fixed plate towards shaft are fixedly connected with second spring, and second spring is fixedly connected with far from one end of fixed plate
Flexible strand, the one end of flexible strand far from second spring are fixedly connected with the shaft.
5. damper welder according to claim 3 or 4, it is characterised in that: the rotational angle of the shaft is greater than
90°。
6. damper welder according to claim 5, it is characterised in that: the rotational angle of the shaft is less than
360°。
7. damper welder according to claim 6, it is characterised in that: be fixedly connected with limit in the shaft
Item, positive stop strip offset with fixed plate.
8. the damper welder according to claim 2 or 7, it is characterised in that: be equipped with receipts below the transverse slat
Header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095593.7A CN109623084B (en) | 2019-01-31 | 2019-01-31 | Welding device for shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910095593.7A CN109623084B (en) | 2019-01-31 | 2019-01-31 | Welding device for shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109623084A true CN109623084A (en) | 2019-04-16 |
| CN109623084B CN109623084B (en) | 2020-12-11 |
Family
ID=66064424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910095593.7A Active CN109623084B (en) | 2019-01-31 | 2019-01-31 | Welding device for shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109623084B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814267A (en) * | 2019-11-21 | 2020-02-21 | 广州小出钢管有限公司 | Manufacturing process of oxygen sensor nut for automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5997784A (en) * | 1982-11-24 | 1984-06-05 | Yujiro Tamaki | Gas welding method |
| CN2104093U (en) * | 1991-10-29 | 1992-05-13 | 董晓东 | Oxyhydrogen weld cutting and electric welding machine |
| JP2000343217A (en) * | 1999-06-08 | 2000-12-12 | Matsushita Electric Ind Co Ltd | Torch for welding or cutting |
| CN107598325A (en) * | 2017-11-09 | 2018-01-19 | 中国航发贵州黎阳航空动力有限公司 | Semiclosed circular thin-wall cavity part outer wall sparking plug set welder and welding method |
| CN206912440U (en) * | 2017-07-19 | 2018-01-23 | 中国石油天然气集团公司 | A kind of flame preheating device |
| CN207073820U (en) * | 2017-06-05 | 2018-03-06 | 中冶交通建设集团有限公司 | Air pressure welding gun and air pressure welding system for reinforcement welding |
-
2019
- 2019-01-31 CN CN201910095593.7A patent/CN109623084B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5997784A (en) * | 1982-11-24 | 1984-06-05 | Yujiro Tamaki | Gas welding method |
| CN2104093U (en) * | 1991-10-29 | 1992-05-13 | 董晓东 | Oxyhydrogen weld cutting and electric welding machine |
| JP2000343217A (en) * | 1999-06-08 | 2000-12-12 | Matsushita Electric Ind Co Ltd | Torch for welding or cutting |
| CN207073820U (en) * | 2017-06-05 | 2018-03-06 | 中冶交通建设集团有限公司 | Air pressure welding gun and air pressure welding system for reinforcement welding |
| CN206912440U (en) * | 2017-07-19 | 2018-01-23 | 中国石油天然气集团公司 | A kind of flame preheating device |
| CN107598325A (en) * | 2017-11-09 | 2018-01-19 | 中国航发贵州黎阳航空动力有限公司 | Semiclosed circular thin-wall cavity part outer wall sparking plug set welder and welding method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110814267A (en) * | 2019-11-21 | 2020-02-21 | 广州小出钢管有限公司 | Manufacturing process of oxygen sensor nut for automobile |
| CN110814267B (en) * | 2019-11-21 | 2021-10-29 | 铭昊汽车金属零部件(广州)有限公司 | Manufacturing process of oxygen sensor nut for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109623084B (en) | 2020-12-11 |
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