CN112440054A

CN112440054A - Welding system for steel cylinder and welding method thereof

Info

Publication number: CN112440054A
Application number: CN202011244221.5A
Authority: CN
Inventors: 林建华; 丰云红; 魏春华; 陈浩; 郑荣华
Original assignee: Zhejiang Jucheng Steel Cylinder Co ltd
Current assignee: Zhejiang Jucheng Steel Cylinder Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-03-05
Anticipated expiration: 2040-11-10
Also published as: CN112440054B

Abstract

The invention relates to a welding system for a steel cylinder, which comprises a base supporting plate, a front fixing seat and a rear fixing seat, wherein the front fixing seat and the rear fixing seat are arranged on the base supporting plate at a relative interval in a front-rear direction, the side wall of the front fixing seat facing the rear fixing seat is fixed with a fixing seat, the rear side of the fixing seat is oppositely provided with a movable seat, the side wall of one side of the fixing seat opposite to the movable seat is symmetrically provided with semicircular grooves, the bottoms of the grooves are provided with arc-shaped clamping grooves, the rear fixing seat is provided with a control clamping assembly used for pushing the movable seat to move relative to the fixing seat and matching with the fixing seat to clamp the steel cylinder. Compared with the manual welding operation in the prior art, and the fixation of the steel cylinder body is realized by a complicated mechanical mechanism, the steel cylinder fixing device has the advantages of simple and reliable structure, automatic welding processing, welding operation after clamping and fixation, and high welding quality.

Description

Welding system for steel cylinder and welding method thereof

Technical Field

The invention relates to a welding system for steel cylinders and a welding method thereof.

Background

The liquefied gas steel cylinder is a class II pressure container for containing flammable and explosive chemicals, is widely applied to the life of urban and rural residents and large-gear, small-scale restaurants and small-scale restaurants in cities and towns, and the production quality of the liquefied gas steel cylinder undoubtedly plays a crucial role in the life and property safety of people. The steel bottle generally includes the steel bottle body, need the welding base bottom the steel bottle body, present welding mode generally is artifical manual welding, welding inefficiency, welding quality is unstable, the welding jig who adopts among the welding process presss from both sides tight use inconvenient, it presss from both sides tightly to adopt complicated mechanical structure to come transmission operation control, and it is fixed unstable to the clamp of steel bottle body, receive the vibration and throw off in welding process after pressing from both sides tightly fixedly easily, bring great influence to welding quality, from this need improve.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a steel cylinder welding system and a steel cylinder welding method, which are convenient for welding operation, clamping and fixing and are stable and difficult to shake and release after being fixed.

The technical scheme of the invention is realized as follows: the utility model provides a welding system for steel bottle, includes base support board and preceding fixing base and the back fixing base of relative interval setting in base support board around and, its characterized in that: the steel cylinder body clamping device is characterized in that a fixing seat is fixed on the side wall of the front fixing seat facing the rear fixing seat, a movable seat is arranged on the rear side of the fixing seat oppositely, semicircular grooves are symmetrically formed in the side wall of the fixing seat opposite to the movable seat, an arc-shaped clamping groove is formed in the bottom of the groove, a control clamping assembly used for pushing the movable seat to move relative to the fixing seat and match with the fixing seat to clamp the steel cylinder body is arranged on the rear fixing seat, and an adjusting welding assembly used for rotatably lifting and welding the steel cylinder body and the base is arranged at the top of.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot arranged on the side wall of the fixed seat and is clamped into the arc-shaped clamping slot for further limiting, then the rear fixed seat is provided with the control clamping component for pushing the movable seat to move relative to the fixed seat and matching with the fixed seat to clamp the steel cylinder body, the control clamping component pushes the movable seat to move relative to the fixed seat, so that the movable seat and the fixed seat are close to and in extrusion contact, the steel cylinder body is fixed, then the base is placed on the top of the steel cylinder body, and under the operation of the adjusting and welding component, the steel cylinder body and the base are processed and welded in a lifting and rotating way, compared with the manual welding operation in the prior art and the complicated mechanical mechanism is needed to fix the steel cylinder body, the steel cylinder welding device has simple and reliable structure, and can automatically weld and perform welding operation after clamping, the welding quality is high.

The invention is further configured to: adjust welding assembly including set up the lift cylinder at preceding fixing base top, connect at the lifter of lift cylinder output, connect the lifting seat in the lifter upper end and set up the rotating electrical machines at the lifting seat upper surface, the rotating electrical machines output is connected with the rotation axis, the rotation axis lower extreme runs through and is connected with the roating seat behind the lifting seat, one side that the rotation axis was kept away from to the roating seat lower surface is provided with welder, welder output downward sloping and towards fluting axis top, the roating seat lower surface is provided with the sideslip adjusting part that is used for driving welder relative rotation axis lower extreme and is close to or keeps away from.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot formed on the side wall of the fixed seat and is clamped into the arc-shaped clamping slot for further limiting, then the clamping assembly is controlled to push the movable seat to move relative to the direction of the fixed seat, so that the movable seat is close to and in extrusion contact with the fixed seat, the steel cylinder body is fixed, then the base is placed on the top of the steel cylinder body, the lifting rod connected with the output end driven by the lifting oil cylinder retracts to drive the lifting seat to lift downwards, then the rotating motor drives the rotating shaft to rotate to drive the rotating seat connected with the lower end of the rotating shaft to rotate, a welding gun is arranged on one side of the lower surface of the rotating seat far away from the rotating shaft, the output end of the welding gun is close to the joint of the steel cylinder body and the base after the welding gun is lifted downwards and, accomplish welding back welder stop work, the rotating electrical machines stop motion, afterwards, the lifter of connecting by lift cylinder drive output is released, it resets to drive the lift seat and rise, the fixing base is kept away from relatively to control clamping components drive removal seat, make removal seat and fixing base separately be convenient for take off the steel bottle body of accomplishing the processing, in order to be convenient for further to handle the welding use needs of different transverse position, be provided with the sideslip adjusting part that is used for driving welder relative rotation axis lower extreme and is close to or keeps away from at the roating seat lower surface.

The invention is further configured to: the transverse moving adjusting assembly comprises a transverse moving oil cylinder which is arranged on the lower surface of the rotating seat and is located below the lower end of the rotating shaft, the output end of the transverse moving oil cylinder is connected with a transverse moving push rod, and one end, far away from the transverse moving oil cylinder, of the transverse moving push rod is connected with a welding gun.

Through adopting above-mentioned technical scheme, need adjust the transverse distance at the relative steel bottle body top of welder output and add man-hour in order to adapt to the welding, the welder by the push rod pulling end connection of roating seat lower surface is along lateral sliding at the roating seat lower surface to adjust the distance of welder relative rotation axis lower extreme below, thereby realize adjusting the transverse distance at the relative steel bottle body top of welder output and in order to adapt to welding processing.

The invention is further configured to: the control clamping assembly comprises a reciprocating plunger pump, an electromagnetic reversing valve and a hydraulic control one-way valve, wherein the reciprocating plunger pump is fixed on the side wall of the front fixed seat facing the rear fixed seat, the driving side of the reciprocating plunger pump is provided with a driving piston, the driving piston is connected with a main board through a connecting rod, the main board is connected with the movable seat through two push plates which are bilaterally symmetrical along the central axis of the movable seat, the rodless side of the driving piston is a rear driving cavity, the rod side of the driving piston is a front driving cavity, the electromagnetic reversing valve is a three-position four-way valve and is provided with a left electromagnetic coil and a right electromagnetic coil, the valve core is normally positioned at the middle position by a left spring and a right spring and deviates to a first; normally in the neutral position, port A3 is off, and port a1 is in communication with both port a2 and port a 4; in the first position, port A3 and port a1 are in communication, and port a2 and port a4 are in communication; in the second position, port a1 and port a4 are in communication, and port a2 and port A3 are in communication; the port A1 of the electromagnetic directional valve is communicated with the front driving cavity, the port A2 of the electromagnetic directional valve is communicated with the rear driving cavity through a hydraulic control one-way valve, a control oil path of the hydraulic control one-way valve is communicated with the port A1 of the electromagnetic directional valve, the port A3 of the electromagnetic directional valve is connected with an oil supply pipeline, and the port A4 of the electromagnetic directional valve is connected with an oil return pipeline.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot formed on the side wall of the fixed seat and is clamped into the arc-shaped clamping slot for further limiting, then the electromagnetic directional valve is switched from the middle position to the second position, when the second position is reached, the port A1 is communicated with the port A4, the port A2 is communicated with the port A3, hydraulic oil passes through the port A3 and the port A2 from an oil supply pipeline and enters the rear driving cavity of the reciprocating plunger pump through the electromagnetic directional valve and the hydraulic control one-way valve, the driving piston is pushed to slide in the direction of the front driving cavity and drives the main board connected through the connecting rod to move in the direction of the fixed seat, the main board is connected with the movable seat through two push plates which are bilaterally symmetrical along the central axis of the movable seat, so that the movable seat and the fixed seat are pushed to be close to and pressed to contact with the fixed seat through the bilateral symmetry, the normal state is a middle position, the port A3 is cut off, the port A1 is simultaneously communicated with the port A2 and the port A4, the hydraulic oil stops feeding, the hydraulic control one-way valve is arranged to prevent the hydraulic oil fed into the rear driving cavity from being reversely flushed back to cause the driving piston to move towards the front driving cavity, so as to ensure the stability of the driving piston against the connecting rod, ensure the driving piston to keep the limiting and clamping effect on the moving seat, prevent the driving piston from being separated due to vibration in the welding process after clamping and fixing, improve the welding quality, then the base is placed at the top of the steel cylinder body, the lifting rod connected with the output end of the lifting oil cylinder is retracted to drive the lifting seat to lift downwards, then the rotating motor drives the rotating shaft to rotate to drive the rotating seat connected with the lower end of the rotating shaft, the welding gun is arranged on the side of the lower surface of the rotating seat far away from the, welding the joint of the steel cylinder body and the base along the circumferential direction along with the rotation of the rotary seat, stopping the welding gun after welding, stopping the operation of the rotary motor, then pushing out the steel cylinder by a lifting rod connected with the driving output end of a lifting oil cylinder to drive the lifting seat to ascend and reset, after welding, switching the electromagnetic directional valve to a first position, communicating a port A3 with a port A1, communicating a port A2 with a port A4, enabling hydraulic oil to pass through the port A3 and the port A1 from an oil supply pipeline through the electromagnetic directional valve, leading most of the hydraulic oil to a front driving cavity of the reciprocating plunger pump, pushing a driving piston to slide towards a rear driving cavity, extruding the hydraulic oil in the rear driving cavity to move towards the hydraulic control one-way valve, enabling the other part of the hydraulic oil to pass through the electromagnetic directional valve and enter a control oil way of the hydraulic control one-way valve, and opening the liquid-air one-way valve to, After port A2 and port A4 of solenoid directional valve, send back from returning oil pipe way, for prior art convenient to use, be convenient for to the tight fixed use of clamp of steel bottle body, the vibration throw-off phenomenon appears in welding process difficult to appear after the tight fixed simultaneously, has improved welding quality.

The invention is further configured to: the side wall of one side of the moving seat far away from the fixed seat is provided with a control limiting assembly which is used for limiting, fixing and preventing loosening of the moving seat after the moving seat and the fixed seat are matched, clamped and fixed.

Through adopting above-mentioned technical scheme, in order to further prevent pressing from both sides tight fixed back to the steel bottle body, vibration among the welding process makes to remove the seat and throw off around the relative fixing base, be provided with on the lateral wall of one side that the fixing base was kept away from to the removal seat and be used for carrying out spacing fixed control spacing subassembly that prevents the pine and take off to removing the seat after removing the seat and fixing base cooperation and pressing from both sides tight fixed, realize pressing from both sides tight fixed back to the steel bottle body removing seat and fixing base, carry out spacing fixed by the spacing subassembly of control to removing the seat, prevent to appear removing the seat displacement and the pine.

The invention is further configured to: the control limiting assembly comprises a connecting plate fixed on the side wall of the fixed seat, a U-shaped limiting plate fixed on the connecting plate, a control seat fixed in the middle of the side wall of the movable seat far away from the fixed seat and a movable cavity arranged in the control seat, wherein two ends of the limiting plate far away from the connecting plate respectively extend to the upper side and the lower side of the movable seat, a sliding plate is arranged in the movable cavity in a sliding manner from front to back in the groove, an inner cavity is arranged in the control seat and positioned at one side of the movable cavity far away from the movable seat, an ejector rod is fixed on the side wall of the sliding plate facing the inner cavity, one end of the ejector rod penetrates through the movable cavity and extends into the inner cavity and is connected with an inner block with an isosceles trapezoid longitudinal section, an upper ejection cavity and a lower ejection cavity are respectively arranged in the control seat and positioned at the upper side and, the upper sliding block and the lower sliding block are respectively fixed with an upper top plate and a lower top plate, the opposite ends of the upper top plate and the lower top plate respectively penetrate through the control seat in the vertical direction to extend into the inner cavity to abut against the upper step surface and the lower step surface of the inner block, the opposite ends of the upper top plate and the lower top plate are arranged to be inclined with the upper step surface and the lower step surface of the inner hole, one ends, far away from each other, of the upper top plate and the lower top plate respectively penetrate through the outer walls of the upper side and the lower side of the control seat, the opposite sides of the upper sliding block and the lower sliding block are respectively connected with the upper ejection cavity and the lower ejection cavity through the upper spring and the lower spring and are close to the inner cavity wall of the side, the front side of the movable cavity is connected between the hydraulic control one-way valve and the port A2 of the electromagnetic reversing valve in parallel through the on-off valve, the rear side of the movable cavity is connected between the port A1 of the electromagnetic reversing valve and the front movable And the upper top plate and the lower top plate extending out of the outer walls of the upper side and the lower side of the control seat are fixed limiting plates for limiting and moving backwards.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot formed on the side wall of the fixed seat and clamped into the arc-shaped clamping slot for further limiting, then the electromagnetic directional valve is switched from the middle position to the second position, when the second position is reached, the port A1 is communicated with the port A4, the port A2 is communicated with the port A3, hydraulic oil passes through the port A3 and the port A2 from an oil supply pipeline and enters the rear driving cavity of the reciprocating plunger pump through the electromagnetic directional valve and the hydraulic control one-way valve, the driving piston is pushed to slide in the direction of the front driving cavity and drives the main board connected through the connecting rod to move in the direction of the fixed seat, the main board is connected with the movable seat through two push plates which are bilaterally symmetrical along the central axis of the movable seat, so that the movable seat and the fixed seat are pushed to be close to and contact with the hydraulic oil in a bilateral symmetry mode through the two push plates, after the, the hydraulic oil is sent back from the oil return pipeline, the steel cylinder body is fixed, after the hydraulic oil is fixed in place, the on-off valve is switched to a passage state, at the moment, the hydraulic oil stops entering the rear driving cavity and enters the front side of the moving cavity after passing through the on-off valve, the sliding plate in the moving cavity is pushed to slide towards the rear side, the ejector rod is driven to push towards the rear side into the inner cavity in the sliding process, the inner block in the inner cavity is driven by the ejector rod to move towards the rear side, the opposite ends of the upper top plate and the lower top plate respectively penetrate through the control seat along the vertical direction to extend into the inner cavity to be abutted against the upper trapezoidal surface and the lower trapezoidal surface of the inner block, the opposite ends of the upper top plate and the lower top plate are arranged to be inclined to be matched with the upper trapezoidal surface and the lower trapezoidal surface of the inner hole, so that the upper top plate and the lower top plate are respectively driven to push upwards and downwards, the upper spring and the lower spring are stretched, one ends of the upper top plate and the lower top plate, which are far away from each other, are respectively pushed out and slide along the side walls of the fixed limiting plates on the upper inner wall and the lower inner wall of the limiting plates, the fixed limiting plates limit the upper top plate and the lower top plate to move backwards, hydraulic oil in the rear side of the moving cavity is sent back from an oil return pipeline after passing through a port A1 and a port A4 of the electromagnetic directional valve, then the electromagnetic directional valve is switched to a normal state, the normal state is a middle position, the port A3 is stopped, the port A1 is simultaneously communicated with the port A2 and the port A4, the hydraulic oil is stopped from being sent, at the moment, on one hand, the hydraulic control one-way valve is arranged to prevent the hydraulic oil fed into the rear driving cavity from reversely rushing back to cause the driving piston to move forwards in the direction of the driving cavity, so as, The lower top plate is matched with a limiting plate structure to limit the control seat, the moving seat is prevented from being separated by vibration in the welding process after clamping and fixing, the welding quality is improved, then the base is placed on the top of the steel cylinder body, the lifting rod connected with the output end is driven by the lifting oil cylinder to retract, the lifting seat is driven to lift downwards, then the rotating motor drives the rotating shaft to rotate, the rotating seat connected with the lower end of the rotating shaft is driven to rotate, a welding gun is arranged on one side of the lower surface of the rotating seat, which is far away from the rotating shaft, the output end of the welding gun is close to the joint of the steel cylinder body and the base after lifting downwards and starts welding, the joint of the steel cylinder body and the base is welded along the circumferential direction along with the rotation of the rotating seat, the welding gun stops working after welding is finished, the rotating motor stops, after welding is finished, the electromagnetic directional valve is switched to a first position, the port A3 is communicated with the port A1, the port A2 is communicated with the port A4, hydraulic oil passes through the port A3 and the port A1 from an oil supply pipeline and passes through the electromagnetic directional valve, the backspacing on-off valve is switched to an off state, the hydraulic oil enters the rear inner side of the moving cavity through the electromagnetic directional valve, a sliding plate in the moving cavity is pushed to slide towards the front side, in the sliding process, the ejector rod is driven to move towards the front side, an inner block in the inner cavity also moves towards the front side under the driving of the ejector rod, after the support of the inner block is lost, under the restoring acting force of an upper spring and a lower spring, the upper top plate and the lower top plate are driven to relatively approach, the fixed limit plate stops limiting the upper top plate and the lower top plate, the hydraulic oil in the front side of the moving cavity is sent back from the oil return pipeline after passing through the port A2 and the port, a majority of hydraulic oil lets in the preceding drive chamber of reciprocal plunger pump, the top is moved the drive piston and is slided to the back drive chamber direction, and the hydraulic oil in the extrusion back drive chamber removes to the pilot operated check valve direction, another part hydraulic oil enters into the control oil circuit of pilot operated check valve after passing through the solenoid directional valve, open empty check valve of liquid, make the hydraulic oil in the back drive chamber pass through the pilot operated check valve, behind port A2 and the port A4 of solenoid directional valve, send back from returning oil pipe way, the mainboard that the drive piston slided to the back drive chamber direction and drives the connecting rod connection removes to keeping away from the fixing base direction, make and remove the seat and keep away from the fixing base and stop fixed steel bottle body, be convenient for take off the steel bottle body that finishes the. Compared with the prior art, convenient to use is convenient for press from both sides tight fixed use to the steel bottle body, is difficult to appear vibration throw-off phenomenon in welding process after pressing from both sides tight fixed simultaneously, has improved welding quality.

The invention also discloses a welding method suitable for the welding system for the steel bottle, which is characterized by comprising the following steps of:

s1, clamping and fixing: the steel cylinder body is reversely clamped into a groove formed in the side wall of a fixed seat and clamped into an arc-shaped clamping groove for further limiting, then, an electromagnetic directional valve is switched to a second position from a middle position, when the electromagnetic directional valve is at the second position, a port A1 is communicated with a port A4, a port A2 is communicated with a port A3, hydraulic oil enters a rear driving cavity of the reciprocating plunger pump through an electromagnetic directional valve and a hydraulic control one-way valve from an oil supply pipeline, the hydraulic oil pushes the driving piston to slide in the forward driving cavity direction and drives a main plate connected through a connecting rod to move in the direction of the fixed seat, after the moving seat and the fixed seat are pushed to be close and in extrusion contact through two push plates in a bilateral symmetry mode, the hydraulic oil in the front driving cavity is sent back from an oil return pipeline after passing through a port A1 and a port A4 of the electromagnetic directional valve, and the steel cylinder body;

s2, control limiting: the on-off valve is switched to a passage state, at the moment, hydraulic oil stops entering the rear driving cavity, then enters the front side of the moving cavity after passing through the on-off valve, a sliding plate in the moving cavity is pushed to slide towards the rear side, in the sliding process, the ejector rod is driven to push towards the rear side and enter the inner cavity, the inner block in the inner cavity is driven by the ejector rod to move towards the rear side, the opposite ends of the upper top plate and the lower top plate respectively penetrate through the control seat along the vertical direction and extend into the inner cavity to abut against the upper ladder surface and the lower ladder surface of the inner block, the upper top plate and the lower top plate are driven to push upwards and downwards along the vertical direction along with the backward movement of the inner block, the upper sliding block and the lower sliding block in the upper ejection cavity and the lower ejection cavity are respectively driven to slide upwards and downwards, the upper spring and the lower spring are stretched, the ends of the upper top plate and the lower top plate, the fixed limiting plate limits the upper top plate and the lower top plate to move backwards, and hydraulic oil in the rear side of the moving cavity is returned from an oil return pipeline after passing through a port A1 and a port A4 of the electromagnetic directional valve;

s3, clamping and positioning: then the electromagnetic directional valve is switched to a normal state, the normal state is a middle position, the port A3 is cut off, the port A1 is communicated with the port A2 and the port A4 at the same time, and hydraulic oil stops being fed;

s4, welding: then, the base is placed on the top of the steel cylinder body, the lifting rod connected with the output end of the lifting oil cylinder is driven to retract to drive the lifting seat to lift downwards, then the rotating motor drives the rotating shaft to rotate to drive the rotating seat connected with the lower end of the rotating shaft to rotate, a welding gun is arranged on one side of the lower surface of the rotating seat far away from the rotating shaft, the output end of the welding gun is close to the joint of the steel cylinder body and the base and starts welding after lifting downwards, the joint of the steel cylinder body and the base is welded along the circumferential direction along with the rotation of the rotating seat, the welding gun stops working after welding is completed, the rotating motor stops running, and then the lifting rod connected with the output end of the;

s5, completing releasing: after welding is finished, the electromagnetic directional valve is switched to a first position, the port A3 is communicated with the port A1, the port A2 is communicated with the port A4, hydraulic oil passes through the port A3 and the port A1 from an oil supply pipeline and passes through the electromagnetic directional valve, the backspacing on-off valve is switched to an off state, the hydraulic oil enters the rear side of the moving cavity through the electromagnetic directional valve, a sliding plate in the moving cavity is pushed to slide towards the front side, in the sliding process, the ejector rod is driven to move towards the front side, an inner block in the inner cavity also moves towards the front side under the driving of the ejector rod, after the support of the inner block is lost, under the restoring acting force of the upper spring and the lower spring, the upper top plate and the lower top plate are driven to relatively approach, the fixed limiting plate stops limiting the upper top plate and the lower top plate, and the hydraulic oil in the front side of the moving cavity is sent back from an oil return;

s6, rollback reset: the backspacing on-off valve is switched to a backspacing state, a large part of hydraulic oil is introduced into a front driving cavity of the reciprocating plunger pump, the jacking driving piston slides towards a rear driving cavity, the hydraulic oil in the rear driving cavity is extruded to move towards the direction of the hydraulic control one-way valve, the other part of hydraulic oil enters a control oil way of the hydraulic control one-way valve after passing through the electromagnetic directional valve, a liquid-air one-way valve is opened, the hydraulic oil in the rear driving cavity passes through the hydraulic control one-way valve, a port A2 and a port A4 of the electromagnetic directional valve and then is sent back from an oil return pipeline, the driving piston slides towards the rear driving cavity to drive a main board connected with a connecting rod to move towards a direction far away from the fixed seat, so that the movable seat is far away from the fixed seat to move and.

By adopting the technical scheme, the clamping assembly is controlled to push the movable seat to move relative to the fixed seat, so that after the movable seat and the fixed seat are close to each other and are in extrusion contact, the steel cylinder body is fixed, then the base is placed at the top of the steel cylinder body, and under the operation of adjusting the welding assembly, the steel cylinder body and the base are processed and welded in a lifting adjusting and rotating mode After the moving seat and the fixed seat clamp and fix the steel cylinder body, the moving seat is limited and fixed by the control limiting assembly to prevent the moving seat from moving and loosening, after the clamping and fixing of the steel cylinder body by the moving seat and the fixed seat are completed, the clamping and fixing of the steel cylinder body and the limiting of the control limiting assembly on the moving seat are completed, on one hand, the hydraulic control one-way valve is arranged to prevent the hydraulic oil fed into the rear driving cavity from reversely rushing back to cause the driving piston to move towards the front driving cavity direction so as to ensure the stability of the driving piston against the connecting rod and keep the limiting and clamping effect on the moving seat, on the other hand, the upper top plate and the lower top plate are matched with the structure of the limiting plate to limit the control seat, so that the moving seat is prevented from vibrating and being separated in the welding process after the clamping and fixing, the welding quality is improved, after the welding is completed, the control limiting assembly is firstly reset by the control of the oil circuit, the structure is reliable and the use is simple.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a control clamping assembly according to an embodiment of the present invention.

Fig. 3 is a schematic longitudinal sectional view of a limiting plate and a control seat according to an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the present invention discloses a welding system for a steel cylinder, which includes a base support plate 100, and a front fixing seat 101 and a rear fixing seat 102 disposed on the base support plate 100 at a front-rear relative interval, in a specific embodiment of the present invention, a fixing seat 1 is fixed on a side wall of the front fixing seat 101 facing the rear fixing seat 102, a moving seat 2 is disposed on a rear side of the fixing seat 1, semicircular slots 3 are symmetrically disposed on a side wall of the fixing seat 1 opposite to the moving seat 2, an arc-shaped clamping groove is disposed at a bottom of the slot 3, a control clamping assembly for pushing the moving seat 2 to move relative to the fixing seat 1 to cooperate with the fixing seat 1 to clamp the steel cylinder body is disposed on the rear fixing seat 102, and an adjustment welding assembly for rotatably lifting and welding the steel cylinder body and the base is disposed at.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot 3 formed in the side wall of the fixed seat 1 and is clamped into the arc-shaped clamping slot for further limiting, then the rear fixed seat 102 is provided with the control clamping component for pushing the movable seat 2 to move relative to the fixed seat 1 and matching with the fixed seat 1 to clamp the steel cylinder body, the control clamping component pushes the movable seat 2 to move relative to the fixed seat 1, so that the movable seat 2 and the fixed seat 1 are close to each other and are pressed to be pressed, automatic welding processing and clamping fix back welding operation, welding quality is high.

In the embodiment of the invention, the adjusting and welding assembly comprises a lifting cylinder 103 arranged at the top of the front fixed seat 101, a lifting rod 104 connected to the output end of the lifting cylinder 103, a lifting seat 105 connected to the upper end of the lifting rod 104, and a rotating motor 106 arranged on the upper surface of the lifting seat 105, the output end of the rotating motor 106 is connected with a rotating shaft 107, the lower end of the rotating shaft 107 penetrates through the lifting seat 105 and is connected with a rotating seat 108, a welding gun 109 is arranged on one side of the lower surface of the rotating seat 108 far away from the rotating shaft 107, the output end of the welding gun 109 inclines downwards and faces upwards the central axis of the slot 3, and a traverse moving adjusting assembly for driving the welding gun 109 to approach or depart.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot 3 formed in the side wall of the fixed seat 1 and is clamped into the arc-shaped clamping slot for further limiting, then the clamping assembly is controlled to push the movable seat 2 to move relative to the fixed seat 1, so that the movable seat 2 is close to and is pressed against the fixed seat 1 to fix the steel cylinder body, then the base is placed at the top of the steel cylinder body, the lifting rod 104 connected with the output end is driven to retract by the lifting oil cylinder 103 to drive the lifting seat 105 to ascend and descend downwards, then the rotating shaft 107 is driven to rotate by the rotating motor 106 to drive the rotating seat 108 connected with the lower end of the rotating shaft 107 to rotate, a welding gun 109 is arranged on one side of the lower surface of the rotating seat 108, which is far away from the rotating shaft 107, the output end of the welding gun 109 is close to the joint of the steel cylinder body and the base and starts welding along the, accomplish welding back welder 109 stop work, rotating electrical machines 106 bring to rest, subsequently, the lifter 104 who is connected by lift cylinder 103 drive output pushes away, it resets to drive lift seat 105 to rise, control clamping components drives and removes seat 2 and keep away from fixing base 1 relatively, make and remove seat 2 and fixing base 1 and part the steel bottle body of being convenient for take off completion processing, in order to further be convenient for to deal with the welding use needs of different transverse position, be provided with the sideslip adjusting part that is used for driving welder 109 relative rotation axis 107 lower extreme and is close to or keeps away from at roating seat 108 lower surface.

In the embodiment of the present invention, the traverse adjustment assembly includes a traverse cylinder 110 disposed on the lower surface of the rotary base 108 and below the lower end of the rotary shaft 107, an output end of the traverse cylinder 110 is connected to a traverse push rod 111, and an end of the traverse push rod 111 far away from the traverse cylinder 110 is connected to the welding gun 109.

By adopting the technical scheme, when the transverse distance of the output end of the welding gun 109 relative to the top of the steel cylinder body needs to be adjusted to adapt to welding processing, the push rod 111 on the lower surface of the rotary seat 108 pulls the welding gun 109 connected with the end part to slide along the transverse direction on the lower surface of the rotary seat 108 so as to adjust the distance below the lower end of the welding gun 109 relative to the rotary shaft 107, thereby realizing the adjustment of the transverse distance of the output end of the welding gun 109 relative to the top of the steel cylinder body to adapt.

In a specific embodiment of the present invention, the control clamping assembly includes a reciprocating plunger pump 11, an electromagnetic directional valve 12 and a pilot operated check valve 13 fixed on the side wall of the rear fixing seat 102 facing the front fixing seat 101, a driving piston 14 is arranged on the driving side of the reciprocating plunger pump 11, the driving piston 14 is connected with a main plate 19 through a connecting rod 15, the main plate 19 is connected with the moving seat 2 through two push plates 16 which are bilaterally symmetrical along the central axis of the moving seat 2, the rodless side of the driving piston 14 is a rear driving cavity 17, the rod side of the driving piston 14 is a front driving cavity 18, the electromagnetic directional valve 12 is a three-position four-way valve which has two left and right electromagnetic coils, the valve core is normally positioned at a middle position by two left and right springs, and is biased to a first position or a second position under the driving of the left; normally in the neutral position, port A3 is off, and port a1 is in communication with both port a2 and port a 4; in the first position, port A3 and port a1 are in communication, and port a2 and port a4 are in communication; in the second position, port a1 and port a4 are in communication, and port a2 and port A3 are in communication; the port A1 of the electromagnetic directional valve 12 is communicated with the front driving cavity 18, the port A2 of the electromagnetic directional valve 12 is communicated with the rear driving cavity 17 through the hydraulic control one-way valve 13, the control oil path of the hydraulic control one-way valve 13 is communicated with the port A1 of the electromagnetic directional valve 12, the port A3 of the electromagnetic directional valve 12 is connected with the oil supply pipeline 4, and the port A4 of the electromagnetic directional valve 12 is connected with the oil return pipeline 5.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot 3 formed in the side wall of the fixed seat 1 and clamped into the arc-shaped clamping slot for further limiting, then the electromagnetic directional valve 12 is switched to the second position from the middle position, when in the second position, the port A1 is communicated with the port A4, the port A2 is communicated with the port A3, hydraulic oil enters the rear driving cavity 17 of the reciprocating plunger pump 11 from the oil supply pipeline 4 through the port A3 and the port A2 and through the electromagnetic directional valve 12 and the hydraulic control one-way valve 13, the piston 14 is pushed to slide towards the direction of the front driving cavity 18 and drive the main plate 19 connected through the connecting rod 15 to move towards the fixed seat 1, the main plate 19 is connected with the movable seat 2 through two push plates 16 which are bilaterally symmetrical along the central axis of the movable seat 2, so that the movable seat 2 is pushed to approach to the fixed seat 1 and be squeezed by the push plates 16, after the steel cylinder body is fixed, the electromagnetic directional valve 12 is switched to a normal state, the normal state is a middle position, the port A3 is cut off, the port A1 is simultaneously communicated with the port A2 and the port A4, the feeding of hydraulic oil is stopped, the hydraulic control one-way valve 13 is arranged to prevent the hydraulic oil fed into the rear driving cavity 17 from reversely rushing back to cause the driving piston 14 to move towards the direction of the front driving cavity 18 so as to ensure the stability of the driving piston 14 against the connecting rod 15, so that the driving piston 14 keeps the limiting clamping effect on the moving seat 2, the vibration and the disengagement in the welding process after the clamping and fixing are prevented, the welding quality is improved, then the base is placed at the top of the steel cylinder body, the lifting rod 104 connected with the driving output end of the lifting cylinder 103 retracts to drive the lifting seat 105 to lift downwards, then the rotating motor 106 drives the rotating shaft 107 to rotate to drive the rotating seat 108 connected with the lower end of the rotating shaft 107 to, after the welding gun 109 is lifted downwards, the output end is close to the joint of the steel cylinder body and the base and starts welding, the welding machining is carried out on the joint of the steel cylinder body and the base along the circumferential direction along with the rotation of the rotating seat 108, the welding gun 109 stops working after welding is finished, the rotating motor 106 stops running, then, the lifting rod 104 connected with the output end is driven by the lifting oil cylinder 103 to push out to drive the lifting seat 105 to ascend and reset, after the welding is finished, the electromagnetic reversing valve 12 is switched to the first position, the port A3 is communicated with the port A1, the port A2 is communicated with the port A4, after hydraulic oil passes through the electromagnetic reversing valve 12 from an oil supply pipeline through the port A3 and the port A1, most of the hydraulic oil is introduced into the front driving cavity 18 of the reciprocating plunger pump 11 to push the driving piston 14 to slide towards the rear driving cavity 17 and extrude the hydraulic oil in the rear driving cavity 17 to move towards the one-way valve 13, and the other part of the hydraulic, open empty check valve 13 of liquid, make the hydraulic oil in the back drive chamber 17 pass through the hydraulic control check valve 13, after port A2 and the port A4 of solenoid directional valve 12, send back from oil return line 5, for prior art convenient to use, be convenient for to the tight fixed use of clamp of steel bottle body, the difficult vibration that appears after the clamp is fixed simultaneously breaks away from the phenomenon at the welding in-process, has improved welding quality.

In the specific embodiment of the invention, a side wall of the movable seat 2 away from the fixed seat 1 is provided with a control limit component for limiting, fixing and preventing the movable seat 2 from loosening after the movable seat 2 and the fixed seat 1 are clamped and fixed in a matching manner.

Through adopting above-mentioned technical scheme, in order to further prevent pressing from both sides tight fixed back to the steel bottle body, vibration among the welding process makes and removes the relative fixing base 1 front and back and throw off of seat 2, it is used for carrying out spacing fixed control spacing subassembly that prevents to take off to removing seat 2 after removing seat 2 and fixing base 1 cooperation clamp fixed to remove seat 2 to be provided with on the lateral wall of one side of keeping away from fixing base 1, remove seat 2 and fixing base 1 and realize pressing from both sides tight fixed back to the steel bottle body, carry out spacing fixed by the spacing subassembly of control to removing seat 2, it takes off to prevent to appear removing the displacement of seat 2 and take off.

In the specific embodiment of the invention, the control limit component comprises a connecting plate 6 fixed on the side wall of the fixed seat 1, a U-shaped limit plate 7 fixed on the connecting plate 6, a control seat 21 fixed in the middle of the side wall of the movable seat 2 far away from the fixed seat 1, and a movable cavity 22 arranged inside the control seat 21, two ends of the limit plate 7 far away from the connecting plate 6 respectively extend to the upper side and the lower side of the movable seat 2, a sliding plate 23 is arranged inside the movable cavity 22 in a front-back sliding manner relative to the slot 3, an inner cavity 24 is arranged inside the control seat 21 and on the side of the movable cavity 22 far away from the movable seat 2, an ejector rod 25 is fixed on the side wall of the sliding plate 23 facing the inner cavity 24, one end of the ejector rod 25 passes through the movable cavity 22 and the control seat 21 and extends into the inner cavity 24 to be connected with an inner block 26 with an isosceles trapezoid longitudinal section, an upper, an upper sliding block 29 and a lower sliding block 30 are respectively arranged in the upper ejection cavity 27 and the lower ejection cavity 28 in an up-and-down sliding manner, an upper top plate 31 and a lower top plate 32 are respectively fixed on the upper sliding block 29 and the lower sliding block 30, opposite ends of the upper top plate 31 and the lower top plate 32 respectively penetrate through the control seat 21 in the vertical direction and extend into the inner cavity 24 to abut against the upper and lower terraces of the inner block 26, opposite ends of the upper top plate 31 and the lower top plate 32 are arranged in an inclined manner matched with the upper and lower terraces of the inner hole 26, one ends of the upper top plate 31 and the lower top plate 32, which are far away from each other, respectively penetrate through the outer walls of the upper side and the lower side of the control seat 21, opposite sides of the upper sliding block 29 and the lower sliding block 30 are respectively connected with the inner cavity walls, close to the side, of the upper ejection cavity 27 and the lower ejection cavity 28, through an on-off valve 35, at, the rear side of the movable cavity 22 is connected in parallel between a port A1 of the electromagnetic directional valve 12 and the front drive cavity 18, a backspacing on-off valve 10 is arranged between the front drive cavity 18 and a port A1 of the electromagnetic directional valve 12, and fixed limiting plates 8 used for limiting and moving backwards an upper top plate 31 and a lower top plate 32 extending out of the outer walls of the upper side and the lower side of the control seat 21 after the movable seat 2 and the fixed seat 1 are matched, clamped and fixed are respectively arranged on the upper inner wall and the lower inner wall of the limiting plate 7.

By adopting the technical scheme, when in use, the steel cylinder body is reversely clamped into the open slot 3 formed in the side wall of the fixed seat 1 and clamped into the arc-shaped clamping slot for further limiting, then the electromagnetic directional valve 12 is switched to the second position from the middle position, when in the second position, the port A1 is communicated with the port A4, the port A2 is communicated with the port A3, hydraulic oil enters the rear driving cavity 17 of the reciprocating plunger pump 11 from the oil supply pipeline 4 through the port A3 and the port A2 and through the electromagnetic directional valve 12 and the hydraulic control one-way valve 13, the piston 14 is pushed to slide towards the direction of the front driving cavity 18 and drive the main plate 19 connected through the connecting rod 15 to move towards the fixed seat 1, the main plate 19 is connected with the movable seat 2 through two push plates 16 which are bilaterally symmetrical along the central axis of the movable seat 2, so that the movable seat 2 is pushed to approach to the fixed seat 1 and be squeezed by the push plates 16, the hydraulic oil in the front driving cavity 18 is sent back from the oil return pipeline 5 after passing through the port A1 and the port A4 of the electromagnetic directional valve 12, the steel cylinder body is fixed, after the hydraulic oil is fixed in place, the on-off valve 35 is switched to a passage state, at the moment, the hydraulic oil stops entering the rear driving cavity 17 and enters the front side of the moving cavity 22 after passing through the on-off valve 35, the sliding plate 23 in the moving cavity 22 is pushed to slide towards the rear side, in the sliding process, the ejector rod 25 is driven to push into the inner cavity 24 towards the rear side, the inner block 26 in the inner cavity 24 is driven by the ejector rod 25 to move towards the rear side, the opposite ends of the upper top plate 31 and the lower top plate 32 respectively pass through the control seat 21 in the vertical direction and extend into the inner cavity 24 to abut against the upper and lower step surfaces of the inner block 26, the opposite ends of the upper top plate 31 and the lower top plate 32 are arranged in an inclined shape matched with the upper and lower step surfaces of the inner hole 26, so as the inner block 26 moves towards, the upper slide block 29 and the lower slide block 30 in the upper ejection cavity 27 and the lower ejection cavity 28 are respectively driven to slide upwards and downwards to stretch the upper spring 33 and the lower spring 34, one ends, far away from each other, of the upper top plate 31 and the lower top plate 32 are respectively pushed out and slide along the side wall of the fixed limit plate 8 on the upper inner wall and the lower inner wall of the limit plate 7, the fixed limit plate 8 limits the upper top plate 31 and the lower top plate 32 to move backwards, hydraulic oil in the rear side of the moving cavity 22 is sent back from the oil return pipeline 5 after passing through the port A1 and the port A4 of the electromagnetic directional valve 12, then the electromagnetic directional valve 12 is switched to a normal state which is a middle position, the port A3 is stopped, the port A1 is simultaneously communicated with the port A2 and the port A4, the hydraulic oil stops being sent in, and on the one hand, the hydraulic control one-way valve 13 is arranged to avoid that the hydraulic oil fed into the rear driving, so as to ensure the stability of the driving piston 14 against the connecting rod 15 and keep the limiting and clamping effect on the moving seat 2, on the other hand, the upper top plate 31 and the lower top plate 32 are matched with the structure of the limiting plate 7 to limit the control seat 21, so as to prevent the moving seat 2 from being vibrated and separated in the welding process after clamping and fixing, thereby improving the welding quality, then the base is placed on the top of the steel cylinder body, the lifting rod 104 connected with the output end is driven to retract by the lifting oil cylinder 103 to drive the lifting seat 105 to ascend and descend downwards, then the rotating motor 106 drives the rotating shaft 107 to rotate, thereby driving the rotating seat 108 connected with the lower end of the rotating shaft 107 to rotate, a welding gun 109 is arranged on one side of the lower surface of the rotating seat 108 far away from the rotating shaft 107, after the welding gun 109 ascends and descends downwards, the output end is close to the joint of the steel cylinder body and, after welding is completed, the welding gun 109 stops working, the rotating motor 106 stops running, then, the lifting rod 104 connected with the output end is driven by the lifting oil cylinder 103 to push out, the lifting seat 105 is driven to lift and reset, after welding is completed, the electromagnetic directional valve 12 is switched to the first position, the port A3 is communicated with the port A1, the port A2 is communicated with the port A4, hydraulic oil passes through the port A3 and the port A1 from an oil supply pipeline and passes through the electromagnetic directional valve 12, the backspacing on-off valve 10 is switched to an off state, the hydraulic oil passes through the electromagnetic directional valve 12 and enters the rear side of the movable cavity 22, the sliding plate 23 in the movable cavity 22 is pushed to slide to the front side, in the sliding process, the ejector rod 25 is driven to move to the front side, the inner block 26 in the inner cavity 24 is driven by the ejector rod 25 to move to the front side, after the support of the inner block 26 is lost, the upper top plate 31 and the lower top plate, the fixed limit plate 8 stops limiting the upper top plate 31 and the lower top plate 32, the hydraulic oil inside the front side of the moving cavity 22 passes through the port A2 and the port A4 of the electromagnetic directional valve 12 and then is sent back from the oil return pipeline 5, then the retraction on-off valve 10 is switched to a passage state, a large part of the hydraulic oil is introduced into the front driving cavity 18 of the reciprocating plunger pump 11, the jacking driving piston 14 slides towards the rear driving cavity 17 and extrudes the hydraulic oil in the rear driving cavity 17 to move towards the hydraulic control one-way valve 13, the other part of the hydraulic oil passes through the electromagnetic directional valve 12 and then enters the control oil circuit of the hydraulic control one-way valve 13, the hydraulic air one-way valve 13 is opened, the hydraulic oil in the rear driving cavity 17 passes through the hydraulic control one-way valve 13, the port A2 and the port A4 of the electromagnetic directional valve 12 and then is sent back from the oil return pipeline 5, the driving piston 14 slides towards the rear driving cavity 17 to drive the main plate 19 connected with, make to remove seat 2 and keep away from fixing base 1 and stop fixed steel bottle body, be convenient for take off the steel bottle body of accomplishing the processing. Compared with the prior art, convenient to use is convenient for press from both sides tight fixed use to the steel bottle body, is difficult to appear vibration throw-off phenomenon in welding process after pressing from both sides tight fixed simultaneously, has improved welding quality.

The invention also discloses a welding method suitable for the welding system for the steel bottle, which comprises the following steps in the specific embodiment of the invention:

s1, clamping and fixing: the steel cylinder body is reversely clamped into a slot 3 arranged on the side wall of the fixed seat 1 and clamped into an arc-shaped clamping slot for further limiting, then the electromagnetic directional valve 12 is switched to a second position from a middle position, in the second position, port a1 is in communication with port a4, port a2 is in communication with port A3, hydraulic oil is communicated from the oil supply line 4 through port A3 and port a2, enters the rear driving cavity 17 of the reciprocating plunger pump 11 through the electromagnetic directional valve 12 and the hydraulic control one-way valve 13, the pushing driving piston 14 slides towards the front driving cavity 18, and drives the main board 19 connected by the connecting rod 15 to move towards the fixed seat 1, after the two push plates 16 symmetrically push the movable seat 2 to approach and press the fixed seat 1, hydraulic oil in the front driving cavity 18 is returned from the oil return pipeline 5 after passing through a port A1 and a port A4 of the electromagnetic directional valve 12, so that the steel cylinder body is fixed;

s2, control limiting: the on-off valve 35 is switched to a passage state, at the moment, hydraulic oil stops entering the rear driving cavity 17 and enters the front side of the moving cavity 22 through the on-off valve 35, the sliding plate 23 inside the moving cavity 22 is pushed to slide towards the rear side, the ejector rod 25 is driven to be ejected into the inner cavity 24 towards the rear side in the sliding process, the inner block 26 in the inner cavity 24 is driven by the ejector rod 25 to move towards the rear side, opposite ends of the upper ejector plate 31 and the lower ejector plate 32 respectively penetrate through the control seat 21 in the vertical direction to extend into the inner cavity 24 to be abutted against the upper ladder surface and the lower ladder surface of the inner block 26, the upper ejector plate 31 and the lower ejector plate 32 are driven to be ejected upwards and downwards along the vertical direction along with the movement of the inner block 26 towards the rear side, the upper slider 29 and the lower slider 30 in the upper ejector cavity 27 and the lower ejector cavity 28 are respectively driven to slide upwards and downwards, the upper spring 33 and the lower spring 34 are stretched, and one ends of the, the hydraulic oil in the rear side of the moving cavity 22 passes through a port A1 and a port A4 of the electromagnetic directional valve 12 and then is returned from the oil return pipeline 5;

s3, clamping and positioning: then the electromagnetic directional valve 12 is switched to a normal state, the normal state is a middle position, the port A3 is cut off, the port A1 is communicated with the port A2 and the port A4 at the same time, and hydraulic oil stops being fed;

s4, welding: then, the base is placed on the top of the steel cylinder body, the lifting rod 104 connected with the output end is driven to retract by the lifting oil cylinder 103, the lifting seat 105 is driven to lift downwards, then the rotating shaft 107 is driven to rotate by the rotating motor 106, the rotating seat 108 connected with the lower end of the rotating shaft 107 is driven to rotate, a welding gun 109 is arranged on one side, far away from the rotating shaft 107, of the lower surface of the rotating seat 108, the output end of the welding gun 109 is close to the joint of the steel cylinder body and the base after lifting downwards and starts welding, the joint of the steel cylinder body and the base is welded along the circumferential direction along with the rotation of the rotating seat 108, the welding gun 109 stops working after welding, the rotating motor 106 stops running, and then the lifting rod 104 connected with the output end is;

s5, completing releasing: after welding is finished, the electromagnetic directional valve 12 is switched to the first position, the port A3 is communicated with the port A1, the port A2 is communicated with the port A4, hydraulic oil passes through the port A3 and the port A1 from an oil supply pipeline and passes through the electromagnetic directional valve 12, the backspacing on-off valve 10 is switched to an off state, the hydraulic oil enters the rear inner side of the movable cavity 22 through the electromagnetic directional valve 12, pushes the sliding plate 23 in the movable cavity 22 to slide towards the front side and drives the ejector rod 25 to move towards the front side in the sliding process, the inner block 26 in the inner cavity 24 is also driven towards the front side by the ejector rod 25, after the support of the inner block 26 is lost, under the restoring acting force of the upper spring 33 and the lower spring 34, the upper top plate 31 and the lower top plate 32 are driven to relatively approach, the fixed limit plate 8 stops limiting the upper top plate 31 and the lower top plate 32, the hydraulic oil in the front side of the movable cavity 22 passes through the port A2 and, returning from the return line 5;

s6, rollback reset: the backspacing on-off valve 10 is switched to a return passage state, a large part of hydraulic oil is introduced into a front driving cavity 18 of the reciprocating plunger pump 11, the jacking driving piston 14 slides towards a rear driving cavity 17, and presses the hydraulic oil in the rear driving cavity 17 to move towards the hydraulic control one-way valve 13, the other part of hydraulic oil enters a control oil path of the hydraulic control one-way valve 13 after passing through the electromagnetic directional valve 12, a liquid-air one-way valve 13 is opened, so that the hydraulic oil in the rear driving cavity 17 passes through the hydraulic control one-way valve 13, a port A2 and a port A4 of the electromagnetic directional valve 12 and then is returned from the oil return pipeline 5, the driving piston 14 slides towards the rear driving cavity 17 to drive a main board 19 connected with a connecting rod 15 to move towards a direction far away from the fixed seat 1, so that the movable seat 2 moves away from the fixed seat 1 and stops fixing the steel cylinder.

By adopting the technical scheme, the clamping assembly is controlled to push the movable seat 2 to move relative to the fixed seat 1, so that the movable seat 2 and the fixed seat 1 are close to each other and are pressed to be connected, the steel cylinder body is fixed, then the base is placed at the top of the steel cylinder body, and under the operation of the welding assembly, the steel cylinder body and the base are processed and welded in a lifting adjustment and rotating mode, compared with the manual welding operation in the prior art and the complex mechanical mechanism is needed to fix the steel cylinder body, the steel cylinder fixing device has the advantages of simple and reliable structure, automatic welding processing, welding operation after clamping and fixing, high welding quality, regulation of the relative position of the movable seat 2 and the fixed seat 1 through the control of the hydraulic oil circuit, clamping and fixing of the steel cylinder body, and compared with the complex mechanical mechanism needed to fix in the prior art, the steel cylinder fixing device has simple and convenient, a control limit component for limiting and fixing the moving seat 2 after the moving seat 2 and the fixed seat 1 are matched, clamped and fixed and preventing the moving seat 2 from loosening is arranged on the side wall of one side of the moving seat 2 away from the fixed seat 1, after the moving seat 2 and the fixed seat 1 clamp and fix the steel cylinder body, the control limit component limits and fixes the moving seat 2 and prevents the moving seat 2 from loosening due to displacement, after the clamping and fixing of the steel cylinder body and the control limit component limit the moving seat 2, on one hand, the hydraulic control check valve 13 is arranged to prevent the hydraulic oil fed into the rear driving cavity 17 from reversely rushing back to cause the driving piston 14 to move towards the direction of the front driving cavity 18 so as to ensure the stability of the driving piston 14 against the connecting rod 15 and keep the limiting and clamping effect on the moving seat 2, on the other hand, the upper top plate 31 and the lower top plate 32 are matched with the structure of the limit plate 7 to limit, prevent to move seat 2 and receive the vibration and throw off in the welding process after pressing from both sides tight fixed, improve welding quality, after the welding is accomplished, make the spacing subassembly of control earlier roll back through the control of oil circuit and reset and then control the removal of moving seat 2 relative fixing base 1 and reset, the reliable simple to use of structure.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a welding system for steel bottle, includes base support plate (100) and preceding fixing base (101) and back fixing base (102) that relative interval set up on base support plate (100) around and, its characterized in that: preceding fixing base (101) are fixed with fixing base (1) on the lateral wall towards after-fixing base (102), fixing base (1) rear side is provided with relatively and removes seat (2), semicircular fluting (3) have been seted up to the symmetry on fixing base (1) and the relative lateral wall of removal seat (2), open at the bottom of fluting (3) inside groove and be equipped with the arc and press from both sides tight groove, be provided with on after-fixing base (102) and be used for promoting to remove the relative fixing base (1) of seat (2) and remove the control clamping components that cooperation fixing base (1) pressed from both sides tight steel bottle body, preceding fixing base (101) top is provided with the regulation welding assembly who is used for rotatable lift welding steel bottle body and base.

2. The welding system for steel cylinders according to claim 1, wherein: adjust welding assembly including set up lift cylinder (103) at preceding fixing base (101) top, connect lifter (104) at lift cylinder (103) output, connect lift seat (105) and the rotating electrical machines (106) of setting at lift seat (105) upper surface in lifter (104) upper end, rotating electrical machines (106) output is connected with rotation axis (107), be connected with roating seat (108) behind rotation axis (107) lower extreme running through lift seat (105), one side that rotation axis (107) were kept away from to roating seat (108) lower surface is provided with welder (109), welder (109) output downward sloping and towards fluting (3) axis top, roating seat (108) lower surface is provided with and is used for driving the sideslip adjusting part that welder (109) relative rotation axis (107) lower extreme is close to or keeps away from.

3. The welding system for steel cylinders according to claim 2, wherein: the transverse moving adjusting assembly comprises a transverse moving oil cylinder (110) which is arranged on the lower surface of the rotating seat (108) and located below the lower end of the rotating shaft (107), the output end of the transverse moving oil cylinder (110) is connected with a transverse moving push rod (111), and one end, far away from the transverse moving oil cylinder (110), of the transverse moving push rod (111) is connected with a welding gun (109).

4. A cylinder welding system according to claim 1, 2 or 3, wherein: the control clamping assembly comprises a reciprocating plunger pump (11), an electromagnetic reversing valve (12) and a hydraulic control one-way valve (13) which are fixed on the side wall of the rear fixed seat (102) facing the front fixed seat (101), a driving piston (14) is arranged on the driving side of the reciprocating plunger pump (11), the driving piston (14) is connected with a main plate (19) through a connecting rod (15), the main board (19) is connected with the movable seat (2) through two push plates (16) which are symmetrical left and right along the central axis of the movable seat (2), the rodless side of the driving piston (14) is a rear driving cavity (17), the rod side of the driving piston (14) is a front driving cavity (18), the electromagnetic directional valve (12) is a three-position four-way valve, the valve core is positioned at the middle position by a left spring and a right spring under the normal state, and is driven by the left electromagnetic coil or the right electromagnetic coil to deflect to a first position or a second position; normally in the neutral position, port A3 is off, and port a1 is in communication with both port a2 and port a 4; in the first position, port A3 and port a1 are in communication, and port a2 and port a4 are in communication; in the second position, port a1 and port a4 are in communication, and port a2 and port A3 are in communication; the port A1 and the preceding drive chamber (18) intercommunication of solenoid directional valve (12), the port A2 of solenoid directional valve (12) is through pilot operated check valve (13) and rear drive chamber (17) intercommunication, the control oil circuit of pilot operated check valve (13) and the port A1 intercommunication of solenoid directional valve (12), the port A3 of solenoid directional valve (12) is connected with oil feed line (4), the port A4 of solenoid directional valve (12) is connected with oil return line (5).

5. The welding system for steel cylinders according to claim 4, wherein: remove seat (2) and keep away from on the lateral wall of one side of fixing base (1) and be provided with the spacing subassembly of control that is used for carrying out spacing fixed the preventing pine and takes off removal seat (2) after removing seat (2) and fixing base (1) cooperation clamping fixation.

6. The welding system for steel cylinders according to claim 5, wherein: the control limiting assembly comprises a connecting plate (6) fixed on the side wall of the fixing seat (1), a U-shaped limiting plate (7) fixed on the connecting plate (6), a control seat (21) fixed at the middle part of the side wall of one side of the fixing seat (1) and a movable cavity (22) arranged inside the control seat (21), wherein the two ends of the limiting plate (7) far away from the connecting plate (6) extend to the upper side and the lower side of the movable seat (2) respectively, a sliding plate (23) is arranged in the movable cavity (22) in a front-back sliding mode relative to the groove (3), an inner cavity (24) is arranged in one side of the control seat (21) and located in the movable cavity (22) and far away from the movable seat (2), an ejector rod (25) is fixed on the side wall of one side of the sliding plate (23) facing the inner cavity (24), one end of the ejector rod (25) penetrates through the movable cavity (22) and the control seat (21) extends into the inner, an upper ejection cavity (27) and a lower ejection cavity (28) are respectively arranged in the control seat (21) and positioned at the upper side and the lower side of the inner cavity (24), an upper sliding block (29) and a lower sliding block (30) are respectively arranged in the upper ejection cavity (27) and the lower ejection cavity (28) in an up-and-down sliding manner, an upper top plate (31) and a lower top plate (32) are respectively fixed on the upper sliding block (29) and the lower sliding block (30), opposite ends of the upper top plate (31) and the lower top plate (32) respectively penetrate through the control seat (21) in the vertical direction to abut against the upper trapezoidal surface and the lower trapezoidal surface of the inner block (26), opposite ends of the upper top plate (31) and the lower top plate (32) are respectively arranged in an inclined manner matched with the upper trapezoidal surface and the lower trapezoidal surface of the inner hole (26), one ends, far away from each other, of the upper top plate (31) and the lower top plate (32) respectively penetrate through outer walls at the upper side and the lower side of the control seat (21), and the opposite sides of Go up ejecting chamber (27) and ejecting chamber (28) down and be close to the connection of side inner chamber wall, it connects in parallel between port A2 of pilot-operated check valve (13) and solenoid directional valve (12) through on-off valve (35) to remove chamber (22) front side, it connects in parallel between port A1 and the preceding driving chamber (18) of solenoid directional valve (12) to remove chamber (22) rear side, be provided with back-off on-off valve (10) between the port A1 of preceding driving chamber (18) and solenoid directional valve (12), be provided with respectively on the relative inner wall about limiting plate (7) and be used for carrying out spacing fixed limiting plate (8) that move backward to last roof (31) and lower roof (32) that extend both sides outer wall about control seat (21) after removing seat (2) and fixing base (1) cooperation clamp is fixed.

7. A welding method adapted to the welding system for a steel cylinder according to claim 6, comprising the steps of:

s1, clamping and fixing: the steel cylinder body is reversely clamped into a groove 3 formed in the side wall of a fixed seat 1 and clamped into an arc-shaped clamping groove for further limiting, then an electromagnetic directional valve (12) is switched to a second position from a middle position, a port A1 is communicated with a port A4, a port A2 is communicated with a port A3, hydraulic oil enters a rear driving cavity (17) of a reciprocating plunger pump (11) through an electromagnetic directional valve (12) and a hydraulic control one-way valve (13) from an oil supply pipeline (4) through the port A3 and the port A2, a piston (14) is pushed to slide in the direction of a front driving cavity (18) and drive a main plate (19) connected through a connecting rod (15) to move in the direction of the fixed seat (1), the movable seat (2) and the fixed seat (1) are pushed to approach and extrude through left and right compression connection of two push plates (16), and hydraulic oil in the front driving cavity (18) passes through a port A1 and a port A4 of the electromagnetic directional valve (12), is sent back from the oil return pipeline (5) to fix the steel cylinder body;

s2, control limiting: the on-off valve (35) is switched to a passage state, at the moment, hydraulic oil stops entering the rear driving cavity (17) and enters the front side of the moving cavity (22) through the on-off valve (35) to push the sliding plate (23) inside the moving cavity (22) to slide towards the rear side, in the sliding process, the ejector rod (25) is driven to eject towards the rear side into the inner cavity (24), the inner block (26) in the inner cavity (24) is driven by the ejector rod (25) to move towards the rear side, opposite ends of the upper top plate (31) and the lower top plate (32) respectively penetrate through the control seat (21) in the vertical direction to extend into the inner cavity (24) to abut against upper and lower ladder surfaces of the inner block (26), and the upper sliding block (29) and the lower sliding block (30) in the upper ejection cavity (27) and the lower ejection cavity (28) are respectively driven to eject upwards and downwards along the vertical direction along with the backward movement of the inner block (26), the upper spring (33) and the lower spring (34) are stretched, one ends, far away from each other, of the upper top plate (31) and the lower top plate (32) are respectively pushed out and slide along the side wall of a fixed limiting plate (8) on the upper and lower opposite inner walls of a limiting plate (7), the fixed limiting plate (8) limits the upper top plate (31) and the lower top plate (32) to move backwards, and hydraulic oil in the rear side of the moving cavity (22) is sent back from the oil return pipeline (5) after passing through a port A1 and a port A4 of the electromagnetic reversing valve (12);

s3, clamping and positioning: then the electromagnetic directional valve (12) is switched to a normal state, the normal state is a middle position, the port A3 is cut off, the port A1 is communicated with the port A2 and the port A4 at the same time, and hydraulic oil stops being fed;

s4, welding: then the base is placed on the top of the steel cylinder body, the lifting oil cylinder (103) drives the lifting rod (104) connected with the output end to retract, the lifting seat (105) is driven to lift downwards, then the rotating motor (106) drives the rotating shaft (107) to rotate, the rotating seat (108) connected with the lower end of the rotating shaft (107) is driven to rotate, a welding gun (109) is arranged on one side of the lower surface of the rotary seat (108) far away from the rotary shaft (107), the output end of the welding gun (109) is close to the joint of the steel cylinder body and the base after the welding gun (109) is lifted downwards and starts to weld, the joint of the steel cylinder body and the base is welded along the circumferential direction along with the rotation of the rotary seat (108), the welding gun (109) stops working after the welding is finished, the rotary motor (106) stops running, and then, the lifting oil cylinder (103) drives the lifting rod (104) connected with the output end to push out, and the lifting seat (105) is driven to ascend and reset;

s5, completing releasing: after welding is finished, the electromagnetic directional valve (12) is switched to a first position, the port A3 is communicated with the port A1, the port A2 is communicated with the port A4, hydraulic oil passes through the port A3 and the port A1 from an oil supply pipeline and passes through the electromagnetic directional valve (12), the backspacing on-off valve (10) is switched to an off state, the hydraulic oil enters the rear inner part of the moving cavity (22) after passing through the electromagnetic directional valve (12) and pushes the sliding plate (23) in the moving cavity (22) to slide towards the front side, in the sliding process, the ejector rod (25) is driven to move towards the front side, the inner block (26) in the inner cavity (24) is driven by the ejector rod (25) to also move towards the front side, after the support of the inner block (26) is lost, the upper spring (33) and the lower spring (34) return acting force, the upper top plate (31) and the lower top plate (32) are driven to relatively approach, the fixed limit plate (8) stops limiting the upper top plate (31, the hydraulic oil in the front side of the movable cavity (22) passes through a port A2 and a port A4 of the electromagnetic directional valve (12) and is then returned from the oil return pipeline (5);

s6, rollback reset: the backspacing on-off valve (10) switches a return circuit state, a large part of hydraulic oil is introduced into a front driving cavity (18) of the reciprocating plunger pump (11), a jacking driving piston (14) slides towards a rear driving cavity (17) and extrudes the hydraulic oil in the rear driving cavity (17) to move towards a hydraulic control one-way valve (13), the other part of hydraulic oil enters a control oil circuit of the hydraulic control one-way valve (13) after passing through the electromagnetic directional valve (12), a liquid-air one-way valve (13) is opened, the hydraulic oil in the rear driving cavity (17) is returned from an oil return pipeline (5) after passing through the hydraulic control one-way valve (13), a port A2 and a port A4 of the electromagnetic directional valve (12), the driving piston (14) slides towards the rear driving cavity (17) to drive a main plate (19) connected with a connecting rod (15) to move towards a direction far away from the fixed seat (1), so that the movable seat (2) moves away from the fixed seat (1) and stops fixing the steel cylinder, the steel cylinder body convenient to take off and accomplish welding process.