CN201792084U - Vertical circular seam welding machine - Google Patents
Vertical circular seam welding machine Download PDFInfo
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- CN201792084U CN201792084U CN2010205316563U CN201020531656U CN201792084U CN 201792084 U CN201792084 U CN 201792084U CN 2010205316563 U CN2010205316563 U CN 2010205316563U CN 201020531656 U CN201020531656 U CN 201020531656U CN 201792084 U CN201792084 U CN 201792084U
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Abstract
The utility model belongs to the field of welding equipment and relates to a vertical circular seam welding machine for non-oxidation welding of a thin-wall stainless steel three-way bellmouth. The welding machine comprises a working table, a driving device and a welding gun and also comprises a rotating mechanism which makes a product to be processed to rotate by matching the welding gun, wherein the rotating mechanism comprises a spindle and a driving device; a spindle mounting hole is formed on the working table; the spindle is matched with the spindle mounting hole; the lower end of the spindle is connected with the driving device; a fixing shaft for fixing the product to be processed is arranged at the upper end of the spindle; a through hole for transmitting shielding gases is formed inside the spindle; an air hole is formed on the fixing shaft and is communicated with the through hole inside the spindle; and the welding gun is fixed on the working table through a welding gun seat. The vertical circular seam welding machine can simplify the clamping process of products, improve the welding efficiency and welding quality and fulfill the aim of non-oxidation inside and outside the welded pipe fitting, greatly reduces the labor intensity of a worker and shortens the welding time of the products.
Description
Technical field
The utility model belongs to field of welding devices, relates to a kind of welding machine, relates in particular to a kind of vertical circular seam welder that is used for the welding of thin-wall stainless steel threeway bellmouth non-oxidation.
Background technology
As everyone knows, be subjected to the relatively poor characteristic limitations of stainless steel material ductility, the thin-wall stainless steel threeway that fluid is used is produced, can not directly use the thin-walled welding pipe drawing and forming, can only medial head stretch a bit ofly, weld one section straight tube behind the scarfing again, be used for the production technology of stainless steel tee pipe fitting welding at present to guarantee bellmouth length, mainly contain two kinds, a kind of is manual argon arc welding, and characteristics are that efficient is low, welds inhomogeneous, qualification rate is low, is generally used for sample making or new product small lot batch manufacture; Another kind method is to adopt horizontal circular seam welder welding, and advantage is that efficient is higher, and welding quality is better.As the disclosed a kind of equipment of girth weld automatically of Chinese utility model patent ZL200920027186.4, it comprises Work fixing device and weldering device; Wherein Work fixing device comprises the equipment stand, buncher, reductor, the workpiece fixed mould, lateral cylinder, the lateral cylinder fixed head, vertical air cylinder connecting rod, guide pin bushing, vertical cylinder, vertical air cylinder fixed plate, the guide pin bushing fixed bar, one side of equipment stand is provided with vertical air cylinder fixed plate, the guide pin bushing fixed bar, guide pin bushing fixed bar and guide pin bushing are affixed, vertically cylinder is fixed on vertical air cylinder fixed plate, vertically air cylinder connecting rod is with vertically cylinder is affixed, the lateral cylinder fixed head is with vertically air cylinder connecting rod is affixed, lateral cylinder and lateral cylinder fixed head are affixed, and reductor is fixed on equipment stand top and is connected with buncher; The welding gun fixture comprises gun rack and welding gun.The shortcoming of the horizontal welding machine of this class is that machine spindle and tailstock calibration difficulty are higher; and clamping and taking-up are all inconvenient; product drops easily; the argon arc welding machine of being joined can only be protected the product outer surface; but the product inwall seriously is exposed in the air; oxidation is serious, causes product strength to descend, and needs to increase the operation of scale removal.
The utility model content
The utility model mainly is technical problems such as the production efficient that exists at prior art is not high, solder yield is low, a kind of vertical circular seam welder that is used to weld thin-wall stainless steel threeway bellmouth is provided, utilize the utility model can simplify the clamping operation of product, improve welding efficiency and welding quality, reach the purpose of the inside and outside non-oxidation of welding rear tubular member.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of vertical circular seam welder; comprise workbench, drive unit and welding gun; this welding machine also comprises the rotating mechanism that makes processed product cooperate the welding gun rotation; described rotating mechanism comprises main shaft and drive unit; workbench is provided with spindle mounting hole; main shaft matches with spindle mounting hole; the lower end of main shaft links to each other with drive unit; the upper end of main shaft is provided with the fixed axis that is used for fixing processed product; be provided with the through hole that is used to transmit protection gas in the main shaft; have pore on the fixed axis, the through hole in pore and the main shaft is connected, and welding gun is fixed on the workbench by the welding gun seat.Because the utility model is vertical circular seam welder; very convenient when clamping and taking-up product; fixed axis is fixed with product; the through hole of protection gas (adopting argon gas usually) in main shaft sprays from the pore on the fixed axis during welding; and product position to be welded is positioned at the outside of pore, and the protected gas of the air in the groove arranges, and makes solder side be in oxygen-free environment; avoided that the stainless steel weld bond is directly exposed in the air under the high temperature, reduced the oxidation of product inner surface greatly.
As preferably, described drive unit comprises belt pulley, belt, gearbox and motor, and belt pulley links to each other with main shaft, and belt pulley is connected with gearbox by belt, and motor is housed on the gearbox.
As preferably; this welding machine also comprises protection gas transport sector; protection gas transport sector is made up of hollow thimble, steel pipe and air inlet seat; hollow thimble be positioned at described belt pulley under and be connected with the through hole of main shaft; hollow thimble is connected with steel pipe by bearing, is threaded between steel pipe and the air inlet seat.Hollow thimble directly adopts tapering to contact with main shaft, owing in the middle of the tapering head bearing is housed, can rotate together along with main shaft, and keep protection gas transmission structure airtight air tight.
As preferably, this welding machine also comprises hold-down mechanism, and hold-down mechanism is made up of cylinder, Rubber end and cylinder block, cylinder block is fixed on the workbench, cylinder is positioned at the top of main shaft, and cylinder links to each other with cylinder block, and being equipped with on the piston of cylinder can be with the Rubber end of processed product rotation.Compressing structure is used to avoid product, and the parts dislocation influences welding effect owing to overheated generation distortion causes up and down when welding.
As preferably, by nested fixing, nested upper and lower is equipped with bearing between described main shaft and the workbench.Help the stable of main shaft, can not swing during rotation, welding gun is directly consistent apart from remaining with product when guaranteeing welding.
As preferably, described fixed axis bottom is that connecting portion, top are the product seat, is provided with step between connecting portion and the product seat, connecting portion and main shaft are fixed, the product seat is provided with the groove of annular, an even distribution 6-15 pore in the groove, and the external diameter of product seat matches with the internal diameter of processed product.Can be during production according to the product different size, change different size product seats, the product seat guarantees stable the rotating along spindle axis of product sealing wire, and product seat that size is suitable and compressing structure cooperate assurance sealing wire and welding gun rifle core (tungsten electrode) to keep suitable distance.
As preferably, fix a vertical column on the described welding gun seat, welding gun is fixed in the rifle folder, and the rifle folder is connected with slide bar, and the other end of slide bar is contained in the fixed cover, fixed cover is provided with the fixed screw that is used to regulate the slide bar extension elongation, the other end of fixed cover is a clamping part, is fixed on the column, and positioning sleeve is equipped with in the fixed cover below, fixed cover is provided with fixed screw, and fixed screw can be regulated the elasticity between fixed cover and the column; The upper-lower position of fixed cover then needs to regulate with positioning sleeve.
As preferably, described workbench be provided with one can horizontal adjusting position the welding gun positioning seat, welding gun positioning seat upper end studs with the magnetite that is used for fixing slide bar, guarantees the distance of welding gun and welding position.
As preferably, described welding gun seat is provided with two parallel slideways, and four set screws are fixed on the welding gun seat on the workbench by slideway.When the processing specification differs bigger product, can't guarantee coverage if regulate the extension elongation of slide bar extension elongation and rifle, can make welding gun aim at the position to be welded of product by the position of regulating the welding gun seat.
Therefore, the utility model is mainly used in the bellmouth non-oxidation welding of thin-wall stainless steel pipe fitting, especially thin-wall stainless steel threeway, the utility model can be simplified the clamping operation of product, improves welding efficiency and welding quality, reaches the purpose of the inside and outside non-oxidation of welding rear tubular member.The production joint presentation quality of utilizing the utility model welding machine to produce is good, greatly reduces working strength of workers, has shortened the weld interval of product.
Description of drawings
Fig. 1 is a kind of main TV structure schematic diagram of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is the nested a kind of sectional structure schematic diagram of the utility model.
Fig. 5 is a kind of structural representation of the utility model fixed axis.
Fig. 6 is the cross-sectional schematic of fixed axis shown in Figure 5.
Label declaration: nested 1, workbench 2, main shaft 3, fixed axis 4, straight-tube portion 5, cylinder 6, Rubber end 7, threeway semi-finished product 8, cylinder block 9, welding gun seat 10, column 11, welding gun 12, rifle folder 13, slide bar 14, fixed cover 15, fixed screw 16, screw 17, positioning sleeve 18, fixed screw 19, welding gun positioning seat 20, belt pulley 21, belt 22, gearbox 23, motor 24, hollow thimble 25, steel pipe 26, air inlet seat 27, groove 28, pore 29, set screw 30, set screw 31, connecting portion 41, product seat 42, step 43.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
Vertical circular seam welder as shown in Figure 1, 2, 3 adopts vertical structure clamping product (threeway semi-finished product 8) to be processed; workbench 2 is provided with spindle mounting hole; nested 1 is vertically fixed in the spindle mounting hole of workbench 2; the bearing (see figure 4) all is equipped with in nested 1 upper and lower; main shaft 3 is equipped with in nested 1 inside; main shaft 3 can rotate in nested 1, and the inside of main shaft 3 is provided with the through hole that is used to transmit protection gas, and this through hole is used for transmission protection gas (protective gas can be carbon dioxide or argon gas).As shown in Figure 5 and Figure 6; the bottom of fixed axis 4 is that connecting portion 41, top are product seat 42; be provided with step 43 between connecting portion 41 and the product seat 42; connecting portion is threaded with the upper end of main shaft 3; product seat 42 is used for fixing the straight-tube portion 5 of product; the external diameter of product seat 42 is slightly less than the internal diameter of threeway semi-finished product 8; the groove 28 that it is the annular about 2mm that product seat 42 has a width at the place, welding position of threeway semi-finished product 8; even 8 pores 29 that distribute provide protection gas to product inwall solder side when pore 29 is used to weld in the groove 28.Fixing threeway semi-finished product 8 when the part of groove more than 28 is used to weld guarantee that threeway semi-finished product 8 upper and lower two parts horizontal directions can not misplace.
A cylinder 6 is arranged directly over the fixed axis 4, the cylinder piston front end is equipped with a resistant to elevated temperatures Rubber end 7 by bearing, push down threeway semi-finished product 8 when Rubber end 7 is used to weld, product can not break away from fixed axis when guaranteeing welding, and Rubber end can rotate with threeway semi-finished product 8.Cylinder 6 is fixed on the cylinder block 9, and cylinder block 9 is fixedly mounted on the workbench 2.
The bottom of main shaft 3 connects a belt pulley 21, and belt pulley 21 is connected with gearbox 23 by belt 22, and motor 24 is housed on the gearbox 23, and motor 24 provides power for main shaft 3, and gearbox and frequency converter are used to regulate the rotary speed of main shaft.Be hollow thimble 25 under the belt pulley 21, hollow thimble 25 is connected with steel pipe 26 by bearing, between steel pipe and the air inlet seat 27 by being threaded, but the height up-down adjustment of steel pipe is air tight to guarantee between hollow thimble and the main shaft.There is a joint side of air inlet seat 27, is used for connecting protection gas.
Workbench be provided with one can horizontal adjusting position welding gun positioning seat 20, the both sides of welding gun positioning seat 20 have the bar shaped notch, two set screws 30 are fixed on welding gun positioning seat 20 on the workbench by the bar shaped notch, the upper end of welding gun positioning seat 20 studs with a magnetite that is used for fixing slide bar 14, can not move when welding to guarantee welding gun.
Should be understood that this embodiment only to be used to the utility model is described and be not used in the restriction scope of the present utility model.For example, can all can realize the utility model purpose according to production requirement 6-15 the pore that evenly distribute in the groove on the product seat.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The utility model operational instances:To produce DN50 thin-wall stainless steel three-way connection is example.Elder generation's accent machine connects the fixed axis that is fit to the DN50 product on main shaft, regulate welding gun extension elongation, welding gun height, slide bar extension elongation, makes welding gun tungsten electrode and sealing wire keep suitable distance.When slide bar is close to magnet, welding gun front end tungsten pin needle point is the most suitable from sealing wire 0.8-2mm, the speed of mainshaft is transferred to per minute 2 changes, the argon arc welding machine electric current is transferred to 35-40A, the argon bottle that argon arc welding machine connects is opened, and pressure is transferred to about 0.15MPa, set 370 ° of welding, 5 ° of the starting the arc, receive 5 ° of arcs.Operating procedure during production is specific as follows:
A) as shown in Figure 1, ready straight pipe is positioned on the fixed axis, again the threeway semi-finished product is placed above the straight tube.
B) be that the center clockwise rotates with welding gun, and utilize magnet that the suction of slide bar is fixed welding gun with the column.
C) start cylinder 6; make Rubber end 7 vertically push down product; the product top and the bottom break away from when preventing to weld; start protection gas simultaneously; allow protection gas enter product internal protection welding position, make the welding position avoid when high temperature and airborne oxygen generation oxidation reaction by the pore on main shaft, the fixed axis.
D) start welding machine, when main shaft drive product began to rotate, welding gun began striking, and welding gun begins to receive arc when rotating to 365 °; When product stopped the rotation, welding gun was received arc and is finished, and welding gun is pulled from the welding gun positioning seat, and cylinder is return original position, takes off product, enters next life cycle of the product.
Above C, D step can realize automatically that all the straight tube and the threeway semi-finished product of welding usefulness must guarantee consistent size by the PLC system, otherwise because the sealing wire variation in altitude reduces inwall gas shiled effect.
Vertical circular seam welder of the present utility model also can be used for the welding of stainless steel threaded fitting, screw thread elbow for example, only need fixed axis is changed into threaded, two parts of product are put three solder joints by hand gently, again thread head is spun on the fixed axis, just can realize the circumferential weld weldering, when producing elbow, not need to use cylinder to push down product.
The applicant brings into use the method to carry out the stainless steel pipe welding from April, 2010, with thin-wall stainless steel DN50 three-way connection is example, need expend about 1 hour with horizontal girth welding machine accent machine, and be difficult to guarantee that two parts are concentric fully, because horizontal girth welding machine needs main shaft and tailstock fixed product simultaneously, in case the center misplaces to some extent, product is also dislocation unavoidably in welding process, finally cause the product surface injustice, qualification rate is generally about 90%.Must grasp product during horizontal girth welding machine clamping; up to the tailstock plunger tip product is fixed; there is certain danger; the clamping time probably needs 20 seconds; also must live product when taking out product and move back core again with hand rest; welding initial production temperature is higher; scald hand easily; probably need 8 seconds from the time that horizontal circular seam welder takes out product meticulously if wear gloves, add 32 seconds weld intervals, disregard every machine of adjusting machine time and can produce about 480 in per eight hours; and because the product inwall is not protected; need to increase the operation of scale removal, the obvious attenuate of product welding portion after this operation, pipe fitting compression strength descends to some extent.
And use the utility model production with a product, and the accent machine can be finished in 10 minutes, and product is placed directly on the fixed cover, puts the threeway semi-finished product again, another hand starting cylinder, the clamping time only needs 5 seconds.Directly the time from fixed axis taking-up product only needed 2 seconds after cylinder withdrawed from.Weld interval is the same, needs 32 seconds.Every machine can be produced about 730 in per eight hours.Because the welding distance is constant during the product rotation; welding effect is very even; qualification rate is usually more than 98%; simultaneously because the product inwall obtains the protection of carbon dioxide; substantially there is not oxide layer; product compression strength is maintained, need not follow-up scale removal and handle, product appearance is more attractive in appearance.
Claims (10)
1. vertical circular seam welder; comprise workbench (2); drive unit and welding gun (12); it is characterized in that: this welding machine also comprises the rotating mechanism that makes processed product cooperate the welding gun rotation; described rotating mechanism comprises main shaft (3) and drive unit; workbench is provided with spindle mounting hole; main shaft (3) matches with spindle mounting hole; the lower end of main shaft (3) links to each other with drive unit; the upper end of main shaft (3) is provided with the fixed axis (4) that is used for fixing processed product; be provided with the through hole that is used to transmit protection gas in the main shaft (3); the pore (29) that has on the fixed axis (4); through hole in pore (29) and the main shaft (3) is connected, and welding gun (12) is fixed on the workbench (2) by welding gun seat (10).
2. vertical circular seam welder according to claim 1, it is characterized in that: described drive unit comprises belt pulley (21), belt (22), gearbox (23) and motor (24), belt pulley (21) links to each other with main shaft, belt pulley is connected with gearbox (23) by belt (22), and motor is housed on the gearbox.
3. vertical circular seam welder according to claim 2; it is characterized in that: this welding machine also comprises protection gas transport sector; protection gas transport sector is made up of hollow thimble (25), steel pipe (26) and air inlet seat (27); hollow thimble be positioned at described belt pulley under and be connected with the through hole of main shaft; hollow thimble is connected with steel pipe by bearing, is threaded between steel pipe and the air inlet seat.
4. according to claim 1 or 2 or 3 described vertical circular seam welders, it is characterized in that: this welding machine also comprises hold-down mechanism, hold-down mechanism is made up of cylinder (6), Rubber end (7) and cylinder block (9), cylinder block (9) is fixed on the workbench (2), cylinder (6) is positioned at the top of main shaft (3), cylinder (6) links to each other with cylinder block (9), and being equipped with on the piston of cylinder (6) can be with the Rubber end (7) of processed product rotation.
5. according to claim 1 or 2 or 3 described vertical circular seam welders, it is characterized in that: fixing by nested (1) between described main shaft (3) and the workbench (2), nested upper and lower is equipped with bearing.
6. vertical circular seam welder according to claim 4 is characterized in that: fixing by nested (1) between described main shaft (3) and the workbench (2), nested upper and lower is equipped with bearing.
7. according to claim 1 or 2 or 3 described vertical circular seam welders, it is characterized in that: described fixed axis (4) bottom is that connecting portion (41), top are product seat (42), be provided with step (43) between connecting portion (41) and the product seat (42), connecting portion and main shaft are fixed, product seat (42) is provided with the groove (28) of annular, an even distribution 6-15 pore (29) in the groove, the external diameter of product seat (42) matches with the internal diameter of processed product.
8. according to claim 1 or 2 or 3 described vertical circular seam welders, it is characterized in that: fix a vertical column (11) on the described welding gun seat (10), welding gun (12) is fixed in the rifle folder (13), the rifle folder is connected with slide bar (14), the other end of slide bar is contained in the fixed cover (15), fixed cover is provided with the fixed screw (16) that is used to regulate the slide bar extension elongation, the other end of fixed cover (15) is a clamping part, be fixed on the column (11), positioning sleeve (18) is equipped with in the fixed cover below, and fixed cover is provided with fixed screw (19).
9. vertical circular seam welder according to claim 8 is characterized in that: described workbench be provided with one can horizontal adjusting position welding gun positioning seat (20), welding gun positioning seat (20) upper end studs with the magnetite that is used for fixing slide bar.
10. vertical circular seam welder according to claim 9 is characterized in that: described welding gun seat (10) is provided with two parallel slideways, and four set screws (31) are fixed on welding gun seat (10) on the workbench by slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205316563U CN201792084U (en) | 2010-09-17 | 2010-09-17 | Vertical circular seam welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205316563U CN201792084U (en) | 2010-09-17 | 2010-09-17 | Vertical circular seam welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN201792084U true CN201792084U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205316563U Expired - Lifetime CN201792084U (en) | 2010-09-17 | 2010-09-17 | Vertical circular seam welding machine |
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| Country | Link |
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| CN (1) | CN201792084U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961812A (en) * | 2010-09-17 | 2011-02-02 | 浙江天兴管业有限公司 | Vertical circular seam welding machine |
| CN103846528A (en) * | 2014-03-21 | 2014-06-11 | 谢二文 | Annular welding method |
| CN106363278A (en) * | 2016-10-26 | 2017-02-01 | 广西科技大学鹿山学院 | Swing mechanism for full-automatic vertical circular seam welder |
-
2010
- 2010-09-17 CN CN2010205316563U patent/CN201792084U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961812A (en) * | 2010-09-17 | 2011-02-02 | 浙江天兴管业有限公司 | Vertical circular seam welding machine |
| CN101961812B (en) * | 2010-09-17 | 2012-07-11 | 浙江天兴管业有限公司 | Vertical circular seam welding machine |
| CN103846528A (en) * | 2014-03-21 | 2014-06-11 | 谢二文 | Annular welding method |
| CN103846528B (en) * | 2014-03-21 | 2015-12-09 | 佛山晓世科技服务有限公司 | A kind of annular solder method |
| CN106363278A (en) * | 2016-10-26 | 2017-02-01 | 广西科技大学鹿山学院 | Swing mechanism for full-automatic vertical circular seam welder |
| CN106363278B (en) * | 2016-10-26 | 2019-01-15 | 广西科技大学鹿山学院 | A kind of full-automatic vertical circular seam welder swing mechanism |
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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 |
Granted publication date: 20110413 Effective date of abandoning: 20120711 |