CN2848447Y - Automatic welding gun - Google Patents
Automatic welding gun Download PDFInfo
- Publication number
- CN2848447Y CN2848447Y CN 200520140246 CN200520140246U CN2848447Y CN 2848447 Y CN2848447 Y CN 2848447Y CN 200520140246 CN200520140246 CN 200520140246 CN 200520140246 U CN200520140246 U CN 200520140246U CN 2848447 Y CN2848447 Y CN 2848447Y
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- fixed
- welding gun
- jaw clutch
- transmission shaft
- centering
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- Expired - Lifetime
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Abstract
The utility model relates to an automatic welding gun which is composed of a positioning mechanism, a driving mechanism a welding gun and a rotary table, and the utility model is used for automatic welding pipes on pipes or pipes on plates. A centering shaft of the positioning mechanism is fixed in the middle part of the rotary table on the basis of a bearing, the driving mechanism and the welding gun relative positioning mechanism are respectively fixed at both sides of the rotary table, and the rotary table position arranged between the driving mechanism and the positioning mechanism is fixed with transition gearwheels. The transition gearwheels are respectively engaged with a stationary gearwheel which is fixed on the centering shaft and engaged with a load ring wheel which is fixed on the driving mechanism, the transition gearwheels can realize that a motor of the driving mechanism can drive the rotary table to rotate around the centering shaft via the load ring wheel, the transition gearwheel and the stationary gearwheel, therefore the welding gun can be driven to rotate round the centering shaft so as to complete rotary welding. The positioning mechanism is provided with a centering fixing device for automatic positioning the inner walls of pipe joints, and the positioning mechanism also comprises a device which can adjust the space between the centering shafts and the lifting position between the rotary tables. The driving mechanism is provided with an automatic protection device for motor transmission overload, and the automatic protection device is arranged between a motor rotary shaft and a load gearwheel ring.
Description
Technical field
The utility model relates to a kind of automatic welding gun, the automatic welding gun of particularly a kind of pipe pipe or the welding of the tube sheet degree of depth.
Background technology
The restriction of in the prior art because operating environment and operating space, usually can run into operating parts how with the concentric pipe fitting that is fixed in of pipe fitting central shaft so that carry out operating parts work, in automatic welding technique, often run into especially based on the pipe fitting central shaft.Carry out tube sheet when welding automatically in pipe, because the operating space is narrow, operating environment is poor, and welding operation is very difficult.In order to guarantee weldquality, welding gun must be positioned fast and accurately by the inwall of welded tube spare.
Summary of the invention
In order to solve above problem, the utility model provides a kind of automatic welding gun, can accurately fast the welding gun centration axis be fixed in pipe fitting inner wall again, thereby has guaranteed accurately and reliably carrying out of automatic welding gun operation sequence.
The technical solution of the utility model is achieved in that a kind of automatic welding gun, by detent mechanism, driving mechanism, welding gun and rotating disk are formed, being used for pipe pipe or tube sheet welds automatically, the centration axis of this detent mechanism based on bearing fixing in this rotating disk middle part, and relative this detent mechanism with welding gun of this driving mechanism is individually fixed in the both sides of this rotating disk, this rotating disk position between this driving mechanism and this detent mechanism is installed with transition gear, this transition gear meshes with the fixed gear engagement of being fixed in this centration axis and with the load ring wheel that is fixed in this driving mechanism respectively, the motor of realizing this driving mechanism is by this load ring wheel, transition gear and fixed gear drive this rotating disk and rotate around this centration axis, thereby also driving this welding gun rotates around this centration axis, finish and rotate welding, this detent mechanism has the centering fixture of automatic location pipe fitting inner wall, this welding gun have regulate and this centration axis between spacing and and this rotating disk between lifting position.
As further improvement of the utility model, this fixture of feeling relieved, by cylinder, air cylinder connecting rod, pivot bush unit is in this air cylinder connecting rod and be fixed in the connecting rod cover of this cylinder, the circular cone that the upper end is connected in this air cylinder connecting rod bar that rises, pivot bush unit rises in this circular cone, and bar and upper end are communicated with and the positioning sleeve that is fixed in this connecting rod cover lower port is formed, this connecting rod cover as the centration axis of this detent mechanism based on this rotating disk of bearing fixing, and be fixed in this fixed gear, this positioning sleeve lower end has tension mechanism and can stretch into the pipe fitting of being felt relieved, this air cylinder connecting rod of this air cylinder driven and circular cone rise by bar when moving down, the tension mechanism that drives this positioning sleeve evenly outwards opens and is supported in by the centering pipe fitting inner wall, thus with concentric its inwall that also is fixed in automatically of this pipe fitting central shaft.
As further improvement of the utility model, the tension mechanism of this positioning sleeve is the evenly a plurality of identical spacing slotted eyes of distribution of this positioning sleeve lower end periphery, and cooperate the movable a plurality of identical centering of stretching into this spacing slotted eye piece that rises, this positioning sleeve lower end wears ring spring and is convenient to these a plurality of centering piece that rises and is wrapped in this positioning sleeve bottom, this circular cone of this air cylinder driven rises by bar when moving down, the rise conehead of bar of this circular cone is inserted into these a plurality of centering and rises in the middle of the piece, and drive this a plurality of centering and rise by piece by to should outwards evenly opening in the stopper slot hole, thereby with concentric its inwall that also is fixed in automatically of this pipe fitting central shaft.
As further improvement of the utility model, should tightly overlap three the spacing slotted eyes that evenly distribute on the periphery of lower end surely, correspondence is provided with three identical centering piece that rises, this centering piece front of rising is at right angles trapezoidal, rising as this centering of lateral surface is provided with a notch on the right-angle side of piece at least, is convenient to this ring spring and snaps in.
As further improvement of the utility model; this positioning sleeve also activity wears the splashproof cover; this splashproof cover surface is provided with screw and attachment screw can be fixed in this positioning sleeve; this splashproof cover is fixed in this positioning sleeve when touching this in this splashproof cover lower end and being felt relieved the pipe fitting port, and protects the tension mechanism of this positioning sleeve.
As further improvement of the utility model; this driving mechanism has Self-protective device of motor drive overload; be installed between motor transmission shaft and this load gear ring; it is by the last jaw clutch and the following jaw clutch of the relative engagement that is set in this power transmission shaft; this time jaw clutch is fixed in the governor motion composition of this power transmission shaft relatively; should go up jaw clutch and coaxial fixing and movable this power transmission shaft that is set in of load gear ring; this time jaw clutch circumferentially is fixed in this power transmission shaft and axially can slides along this power transmission shaft; this governor motion can drive this time jaw clutch based on spring force and be engaged in jaw clutch on this; realize that this power transmission shaft normally drives the load gear ring and rotates; simultaneously when the load gear ring is obstructed should on jaw clutch can break away from and promote this time jaw clutch and move down, thereby this governor motion can compress this time of absorption jaw clutch based on spring.
As further improvement of the utility model, this governor motion by spring that is set in this power transmission shaft successively and spring centring sleeve, this spring centring sleeve can be positioned this power transmission shaft arbitrarily and be fixed in the adjusting rod of this power transmission shaft end and the adjustment screw of cooperation is formed, this spring one end is supported in this spring centring sleeve anchor ring and the other end is supported in this time jaw clutch anchor ring.
As further improvement of the utility model, this time jaw clutch inner ring surface axially is provided with a groove at least, to should this transmission shafts of groove to being convexly equipped with a strip convex part that can snap in this groove, be convenient to this time jaw clutch and axially can slide and circumferentially can be fixed in this power transmission shaft along this power transmission shaft based on this groove and this protuberance.
The beneficial effects of the utility model:
A plurality of identical spacing slotted eyes and cooperate a plurality of movable identical centering of stretching into piece that rises owing to evenly distribute on this positioning sleeve periphery, this circular cone bar conehead that rises rises in the middle of the piece can stretching into these a plurality of centering under this air cylinder driven, thereby force these a plurality of centering piece that rises outwards evenly to open by the spacing slotted eye on this positioning sleeve, be supported in pipe fitting inner wall equably, thereby realize and concentric this pipe fitting inner wall that is fixed in of this pipe fitting central shaft, so the detent mechanism of this automatic welding gun has and is positioned pipe fitting inner wall automatically fast.
Because last jaw clutch is fixed on the load gear ring, following jaw clutch circumferentially is fixed on motor transmission shaft, and axially can move along motor transmission shaft, under the driving of the spring force of this governor motion, this time jaw clutch fits to jaw clutch, has realized the normal driven loads of motor.
When the load generation of being obstructed; and the jaw clutch rotational resistance is during greater than the spring force of governor motion; last jaw clutch promotes down, and jaw clutch moves down; upper and lower jaw clutch separately; at this moment, gear stops the rotation, but motor still rotates; the protection motor, so the driving mechanism of this automatic welding gun has the effect of motor transmission automatic overload protection.
Description of drawings
Fig. 1 is a half section structural representation of the present utility model;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the half section structural representation of the detent mechanism described in the utility model;
Fig. 4 is the positioning sleeve installation diagram described in the utility model;
Fig. 5 is the half section structural representation of the driving mechanism described in the utility model;
Fig. 6 is the local structure for amplifying schematic diagram of A among Fig. 5;
Fig. 7 is an embodiment schematic diagram of the present utility model.
The specific embodiment
Below contrast Fig. 1 to Fig. 7 is further described:
As depicted in figs. 1 and 2, a kind of automatic welding gun, by detent mechanism 100, driving mechanism 200, welding gun 300 and rotating disk 400 are formed, being used for pipe pipe or tube sheet welds automatically, the centration axis of this detent mechanism based on bearing fixing in this rotating disk middle part, and relative this detent mechanism with welding gun of this driving mechanism is individually fixed in the both sides of this rotating disk, this rotating disk position between this driving mechanism and this detent mechanism is installed with transition gear 401, this transition gear meshes with fixed gear 101 engagements of being fixed in this centration axis and with the load ring wheel 250 that is fixed in this driving mechanism respectively, the motor of realizing this driving mechanism is by this load ring wheel, transition gear and fixed gear drive this rotating disk and rotate around this centration axis, thereby also driving this welding gun rotates around this centration axis, finish and rotate welding, this detent mechanism has the centering fixture of automatic location pipe fitting inner wall, this welding gun have regulate and this centration axis between spacing and and this rotating disk between lifting position.
As shown in Figure 3, this fixture of feeling relieved, by cylinder 1, air cylinder connecting rod 2, pivot bush unit is in this air cylinder connecting rod and be fixed in the connecting rod cover 3 of this cylinder, the circular cone that the upper end is connected in this air cylinder connecting rod bar 4 that rises, pivot bush unit rises in this circular cone, and bar and upper end are communicated with and the positioning sleeve 5 that is fixed in this connecting rod cover lower port is formed, this connecting rod cover as the centration axis of this detent mechanism based on this rotating disk of bearing fixing, and be fixed in this fixed gear, this positioning sleeve lower end has tension mechanism and can stretch into the pipe fitting 7 of being felt relieved, this air cylinder connecting rod of this air cylinder driven and circular cone rise by bar when moving down, the tension mechanism that drives this positioning sleeve evenly outwards opens and is supported in by the centering pipe fitting inner wall, thus with concentric its inwall that also is fixed in automatically of this pipe fitting central shaft.
As shown in Figure 4, the tension mechanism of this positioning sleeve is the evenly a plurality of identical spacing slotted eyes 51 of distribution of this positioning sleeve lower end periphery, and cooperate the movable a plurality of identical centering of stretching into this spacing slotted eye piece 52 that rises, this positioning sleeve lower end wears ring spring 53 and is convenient to these a plurality of centering piece that rises and is contained within this positioning sleeve bottom, this circular cone of this air cylinder driven rises by bar when moving down, the rise conehead of bar of this circular cone is inserted into these a plurality of centering and rises in the middle of the piece, and drive this a plurality of centering and rise by piece by to should outwards evenly opening in the stopper slot hole, thereby with concentric its inwall that also is fixed in automatically of this pipe fitting central shaft.
Should tightly overlap three the spacing slotted eyes that evenly distribute on the periphery of lower end surely, correspondence is provided with three identical centering piece that rises, this centering piece front of rising is at right angles trapezoidal, and rising as this centering of lateral surface is provided with a notch 521 on the right-angle side of piece at least, is convenient to this ring spring and snaps in.
As shown in Figure 3; this positioning sleeve also activity wears splashproof cover 8; this splashproof cover surface is provided with screw and attachment screw can be fixed in this positioning sleeve; this splashproof cover is fixed in this positioning sleeve when touching this in this splashproof cover lower end and being felt relieved the pipe fitting port, and protects the tension mechanism of this positioning sleeve.
As shown in Figure 5 and Figure 6; this driving mechanism has Self-protective device of motor drive overload; be installed between motor 10 power transmission shafts 3 and this load gear ring; it is by the last jaw clutch 1 and the following jaw clutch 2 of the relative engagement that is set in this power transmission shaft; this time jaw clutch is fixed in the governor motion composition of this power transmission shaft relatively; should go up jaw clutch and coaxial fixing and movable this power transmission shaft that is set in of load gear ring; this time jaw clutch circumferentially is fixed in this power transmission shaft and axially can slides along this power transmission shaft; this governor motion can drive this time jaw clutch based on spring force and be engaged in jaw clutch on this; realize that this power transmission shaft normally drives the load gear ring and rotates; simultaneously when the load gear ring is obstructed should on jaw clutch can break away from and promote this time jaw clutch and move down, thereby this governor motion can compress this time of absorption jaw clutch based on spring.
This governor motion by spring 4 that is set in this power transmission shaft successively and spring centring sleeve 5, this spring centring sleeve can be positioned this power transmission shaft arbitrarily and be fixed in the adjusting rod 6 of this power transmission shaft end and the adjustment screw 7 that cooperates is formed, this spring one end is supported in this spring centring sleeve anchor ring and the other end is supported in this time jaw clutch anchor ring.
This time jaw clutch inner ring surface axially is provided with a groove at least, to should this transmission shafts of groove to being convexly equipped with a strip convex part that can snap in this groove, be convenient to this time jaw clutch and axially can slide and circumferentially can be fixed in this power transmission shaft along this power transmission shaft based on this groove and this protuberance.
Its operation principle is elaborated when welding automatically below in conjunction with Fig. 2, Fig. 3, Fig. 4 and Fig. 7:
1. location duty
Start this cylinder then and move downward, pneumatic connecting rod 2 drives these circular cones bar 4 that rises and moves down, and promotes the centering piece 51 that rises and outwards evenly opens, and welding gun fast, accurately is positioned soldered tube wall center.
2. break away from the location duty
Welding job finishes, when welding gun breaks away from location work:
Start this cylinder 1 and move upward, this pneumatic connecting rod 2 drives these circular cones bar 4 that rises and moves up, and breaks away from this centering piece 52 that rises.This centering piece that rises inwardly shrinks under the effect of these ring spring 53 pulling force, drives the tube wall that welding gun breaks away from this location, the welding that enters next pipe fitting.
Motor is usually run into load based on the power transmission shaft transmission and is obstructed in the prior art; at this moment, except that causing the motor safety pin cut off, even the serious accident that motor shaft is cut off can take place; therefore how making motor transmission shaft break away from driven loads under situation is obstructed in load, is the key of protection motor.The utility model provides a kind of automatic welding gun, has Self-protective device of motor drive overload, can be under driven loads be obstructed situation, and motor and motor transmission shaft can break away from load automatically, thus the protection motor.
Be described further below in conjunction with Fig. 5 and 6:
In carrying out automatic welding process, this welding gun is realized rotating around the centration axis of this detent mechanism based on the motor transmission of this driving mechanism, and motor rotates around this detent mechanism by gear drive, rotates around this detent mechanism thereby drive this welding gun.Because in limited space, carry out tube sheet when welding automatically, through regular meeting welding wire and workpiece adhesion or welding gun and workpiece taking place and collide, thereby causes the motor transmission to be obstructed, seriously can make the motor damage.
Therefore at motor transmission shaft Self-protective device of motor drive overload of the present utility model is installed, is driven load by jaw clutch on this and realize transmission.
The operation principle of this Self-protective device of motor drive overload is:
1. normal operating conditions:
This time jaw clutch is under the effect of the spring force of this governor motion and should be in closure state by last jaw clutch.This motor transmission shaft drives the rotation of this time jaw clutch, drives simultaneously to go up jaw clutch and gear rotation, welding gun operate as normal.
2. adhesion, collision status:
When welding wire adhesion or welding gun collision workpiece takes place; the gear rotation is obstructed; when rotational resistance during greater than the spring force of governor motion; promoting this time jaw clutch moves down; separate with jaw clutch on this, at this moment, gear stops the rotation; but motor still rotates, and protection motor, rifle body are not damaged.
Claims (8)
1, a kind of automatic welding gun, by detent mechanism (100), driving mechanism (200), welding gun (300) and rotating disk (400) are formed, being used for pipe pipe or tube sheet welds automatically, it is characterized in that, the centration axis of this detent mechanism (103) based on bearing fixing in this rotating disk middle part, and relative this detent mechanism with welding gun of this driving mechanism is individually fixed in the both sides of this rotating disk, this rotating disk position between this driving mechanism and this detent mechanism is installed with transition gear (401), this transition gear meshes with the fixed gear that is fixed in this centration axis (101) engagement and with the load ring wheel (250) that is fixed in this driving mechanism respectively, the motor of realizing this driving mechanism is by this load ring wheel, transition gear and fixed gear drive this rotating disk and rotate around this centration axis, thereby also driving this welding gun rotates around this centration axis, finish and rotate welding, this detent mechanism has the centering fixture of automatic location pipe fitting inner wall, this welding gun have regulate and this centration axis between spacing and and this rotating disk between lifting position.
2, a kind of automatic welding gun as claimed in claim 1, it is characterized in that, this fixture of feeling relieved, by cylinder (1), air cylinder connecting rod (2), pivot bush unit is in this air cylinder connecting rod and be fixed in the connecting rod cover (3) of this cylinder, the circular cone that the upper end is connected in this air cylinder connecting rod bar (4) that rises, pivot bush unit rises in this circular cone, and bar and upper end are communicated with and the positioning sleeve (5) that is fixed in this connecting rod cover lower port is formed, this connecting rod cover as the centration axis of this detent mechanism based on this rotating disk of bearing fixing, and be fixed in this fixed gear, this positioning sleeve lower end has tension mechanism and can stretch into the pipe fitting (7) of being felt relieved, this air cylinder connecting rod of this air cylinder driven and circular cone rise by bar when moving down, the tension mechanism that drives this positioning sleeve evenly outwards opens and is supported in by the centering pipe fitting inner wall, thus with concentric its inwall that also is fixed in automatically of this pipe fitting central shaft.
3, a kind of automatic welding gun as claimed in claim 2, it is characterized in that, the tension mechanism of this positioning sleeve is the evenly a plurality of identical spacing slotted eyes (51) of distribution of this positioning sleeve lower end periphery, and cooperate the movable a plurality of identical centering of stretching into this spacing slotted eye piece (52) that rises, this positioning sleeve lower end wears ring spring (53) and is convenient to these a plurality of centering piece that rises and is wrapped in this positioning sleeve bottom, this circular cone of this air cylinder driven rises by bar when moving down, the rise conehead of bar of this circular cone is inserted into these a plurality of centering and rises in the middle of the piece, and drive this a plurality of centering and rise by piece by to should outwards evenly opening in the stopper slot hole, thereby with concentric its inwall that also is fixed in automatically of this pipe fitting central shaft.
4, a kind of automatic welding gun as claimed in claim 3, it is characterized in that, should tightly overlap three the spacing slotted eyes that evenly distribute on the periphery of lower end surely, correspondence is provided with three identical centering piece that rises, this centering piece front of rising is at right angles trapezoidal, rising as this centering of lateral surface is provided with a notch (521) on the right-angle side of piece at least, is convenient to this ring spring and snaps in.
5, a kind of automatic welding gun as claimed in claim 2; it is characterized in that; this positioning sleeve also activity wears splashproof cover (8); this splashproof cover surface is provided with screw and attachment screw can be fixed in this positioning sleeve; this splashproof cover is fixed in this positioning sleeve when touching this in this splashproof cover lower end and being felt relieved the pipe fitting port, and protects the tension mechanism of this positioning sleeve.
6; a kind of automatic welding gun as claimed in claim 1 or 2; it is characterized in that; this driving mechanism has Self-protective device of motor drive overload; be installed between motor (210) power transmission shaft (203) and this load gear ring; it is by the last jaw clutch (201) and the following jaw clutch (202) of the relative engagement that is set in this power transmission shaft; this time jaw clutch is fixed in the governor motion composition of this power transmission shaft relatively; should go up jaw clutch and coaxial fixing and movable this power transmission shaft that is set in of load gear ring; this time jaw clutch circumferentially is fixed in this power transmission shaft and axially can slides along this power transmission shaft; this governor motion can drive this time jaw clutch based on spring force and be engaged in jaw clutch on this; realize that this power transmission shaft normally drives the load gear ring and rotates; simultaneously when the load gear ring is obstructed should on jaw clutch can break away from and promote this time jaw clutch and move down, thereby this governor motion can compress this time of absorption jaw clutch based on spring.
7, a kind of automatic welding gun as claimed in claim 6, it is characterized in that, this governor motion by spring that is set in this power transmission shaft successively (204) and spring centring sleeve (205), this spring centring sleeve can be positioned this power transmission shaft arbitrarily and be fixed in the adjusting rod (206) of this power transmission shaft end and the adjustment screw (207) that cooperates is formed, this spring one end is supported in this spring centring sleeve anchor ring and the other end is supported in this time jaw clutch anchor ring.
8, a kind of automatic welding gun as claimed in claim 6, it is characterized in that, this time jaw clutch inner ring surface axially is provided with a groove at least, to should this transmission shafts of groove to being convexly equipped with a strip convex part that can snap in this groove, be convenient to this time jaw clutch and axially can slide and circumferentially can be fixed in this power transmission shaft along this power transmission shaft based on this groove and this protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140246 CN2848447Y (en) | 2005-12-22 | 2005-12-22 | Automatic welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140246 CN2848447Y (en) | 2005-12-22 | 2005-12-22 | Automatic welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2848447Y true CN2848447Y (en) | 2006-12-20 |
Family
ID=37520925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520140246 Expired - Lifetime CN2848447Y (en) | 2005-12-22 | 2005-12-22 | Automatic welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2848447Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463765C (en) * | 2005-12-22 | 2009-02-25 | 昆山市华恒焊接设备技术有限责任公司 | Automatic welding gun |
| CN101653892B (en) * | 2009-09-14 | 2012-05-23 | 奇瑞汽车股份有限公司 | Guiding mechanism of soldering pliers |
| CN103659097A (en) * | 2013-12-03 | 2014-03-26 | 补家武 | Swing type automatic weld tracker for digital welding |
| CN105579180A (en) * | 2013-06-25 | 2016-05-11 | 帕拉联邦大学 | Welding process gas metal arc welding - double cold wire (gmaw-dcw) |
| CN105880887A (en) * | 2016-06-29 | 2016-08-24 | 天津城建大学 | Circumferential feeding device of splicing pipeline welding system |
| CN107457511A (en) * | 2017-08-22 | 2017-12-12 | 安徽汇泰车轮有限公司 | A kind of four welding guns press fitting electric welding machine |
-
2005
- 2005-12-22 CN CN 200520140246 patent/CN2848447Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100463765C (en) * | 2005-12-22 | 2009-02-25 | 昆山市华恒焊接设备技术有限责任公司 | Automatic welding gun |
| CN101653892B (en) * | 2009-09-14 | 2012-05-23 | 奇瑞汽车股份有限公司 | Guiding mechanism of soldering pliers |
| CN105579180A (en) * | 2013-06-25 | 2016-05-11 | 帕拉联邦大学 | Welding process gas metal arc welding - double cold wire (gmaw-dcw) |
| CN103659097A (en) * | 2013-12-03 | 2014-03-26 | 补家武 | Swing type automatic weld tracker for digital welding |
| CN103659097B (en) * | 2013-12-03 | 2015-09-23 | 补家武 | The automatic weld tracker of numerical control weldering swing type |
| CN105880887A (en) * | 2016-06-29 | 2016-08-24 | 天津城建大学 | Circumferential feeding device of splicing pipeline welding system |
| CN105880887B (en) * | 2016-06-29 | 2024-06-04 | 天津城建大学 | Circumferential feeding device of splicing pipeline welding system |
| CN107457511A (en) * | 2017-08-22 | 2017-12-12 | 安徽汇泰车轮有限公司 | A kind of four welding guns press fitting electric welding machine |
| CN107457511B (en) * | 2017-08-22 | 2019-07-19 | 安徽汇泰车轮有限公司 | A kind of four welding guns press fitting electric welding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090225 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |