CN216912754U - Automatic welding equipment for outside of barrel - Google Patents

Abstract

The utility model discloses automatic welding equipment for the exterior of a barrel, which comprises a rack, wherein a shaft body is placed on the rack and is driven to rotate through a driving part, two circle supporting parts are arranged at intervals on the middle part of the shaft body and are used for supporting a circle of a workpiece to be welded, a pressure plate and a tip cone are sequentially detachably sleeved and assembled at a position close to the head part of the shaft body on the shaft body, and the workpiece to be welded is close to the other workpiece to be welded by the tip cone so as to be tightly butted with the workpiece to be welded; the pressing plate approaches the workpiece to be welded to the other workpiece to be welded so as to enable the workpiece to be welded and the other workpiece to be welded to be in tight butt joint; automatic continuous welding machine; the welding gun nozzle is arranged on the outer side of the frame, and the welding gun nozzle is welded at the joint seam of the workpieces to be welded correspondingly.

Description

Automatic welding equipment for outside of barrel

Technical Field

The utility model relates to the field of welding and processing of a cylinder, in particular to automatic welding equipment for the outside of the cylinder.

Background

As shown in fig. 1, a stirring cavity of a conventional stirring device at present is formed by welding a large cylinder, a cone and a small cylinder, and if the cylinder is welded in a flat (horizontal) mode, the cylinder is deformed under the influence of self weight because the wall thickness of the cylinder material of the stirring device is thin (the wall thickness of the common material is about 0.2-6 mm), and the whole cylinder is changed into a goose-egg shape, so that a joint gap between the cylinder and the cone is extremely large, and welding cannot be performed;

therefore, in the traditional process, the large cylinder needs to be erected on the ground, the cone is hoisted by a crown block, and the cone is hoisted to the upper part of the large cylinder and then spliced for manual welding;

however, the above conventional processing techniques have the following problems:

when large-scale stirring equipment is processed, the height of the cylinder and the cone is high, the crown block is limited by the height of a processing workshop, the cone cannot be hoisted to the position above the cylinder, other equipment is needed for hoisting, and the processing process is very troublesome;

secondly, the traditional processing technology still adopts hands to weld the cylinder and the cone, so that the efficiency is poor, and the processing process is time-consuming;

and thirdly, welding by using hands, because the welding capacity of each welding person is different, the welding quality is difficult to be subjected to standardized management, more detection procedures are required to detect the cylinder welded by each welding person, and the detection process is very time-consuming.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects in the prior art, the utility model provides automatic welding equipment and method for the outer part of a cylinder.

The technical scheme of the utility model is as follows:

the utility model provides automatic welding equipment for the outside of a cylinder, which is characterized by comprising the following components:

a frame; the tail section of the rack is provided with a driving part to form a driving area, the front section of the rack is provided with a detachable shaft support frame, the shaft body is arranged on the rack and drives the shaft body to rotate through the transmission of the driving part, and the head part of the shaft body is supported by the shaft support frame, so that the shaft body is arranged in parallel and can rotate;

the middle part of the shaft body is provided with two circle supporting parts at intervals for supporting a circle of a workpiece to be welded, a circle supporting sleeve is sleeved on the shaft body on the outer side of one surface of each circle supporting part facing the head part of the shaft body, circle supporting power devices are symmetrically arranged behind the circle supporting sleeves of the shaft body and used for driving the circle supporting sleeves to move and extend out or retract towards the circle supporting parts, and a conveying pipe guide cone is arranged outside the circle supporting part which is closest to the head part of the shaft body on the shaft body and used for pushing the welded workpiece to be loosened; a pressing plate and a tip cone are sequentially detachably sleeved on the shaft body close to the head of the shaft body, and the tip cone enables a workpiece to be welded to approach another workpiece to be welded so that the workpiece to be welded and the other workpiece to be welded are in tight butt joint; the pressing plate approaches the workpiece to be welded to the other workpiece to be welded so as to enable the workpiece to be welded and the other workpiece to be welded to be in tight butt joint;

automatic continuous welding machine; the welding gun nozzle is arranged on the outer side of the frame and is correspondingly welded at the joint seam of the workpieces to be welded.

Preferably, the end part of the rounding sleeve is inclined;

the rounding component comprises: the fan-shaped panel is movably connected on the fixed back plate and can radially extend and retract along the surface of the fixed back plate; the fan-shaped panel is provided with an even number of blocks which are mutually spliced to form an integral circle;

each sector panel is provided with a waist-shaped hole, and a first connecting hole is formed in the position, corresponding to the waist-shaped hole, of the fixed back plate;

every fan-shaped panel is provided with reinforcing ribs at intervals, a fixed rod penetrates through every two adjacent reinforcing ribs, and a tension rebound piece is hooked between the fixed rod and the circle supporting sleeve.

Preferably, the tail end of each fan-shaped panel attached to the shaft body is in an inward-inclined arc shape, namely, the tail end of each fan-shaped panel is in an inward-recessed arc shape matched with the end of the corresponding circle supporting sleeve; when the circle supporting sleeve is extended out in a displacement mode, the fan-shaped panel can be unfolded through matching with the tail end of the fan-shaped panel, and a workpiece to be welded is supported in a circle mode.

Preferably, an inwards concave limiting cavity is formed at the edge of the middle opening of the fixed back plate, and the limiting cavity plays a role in limiting when the circle supporting sleeve moves to extend out of the fan-shaped panel.

Preferably, the edge of the head end part of the sector panel is designed to be a chamfer, and the edge of the chamfer is a joint gap formed by butt joint of the head end and the tail end of the two workpieces to be welded.

Preferably, the end part of the conveying pipe guide cone is inclined, the conveying pipe guide power device is symmetrically installed behind the cone supporting sleeve on the shaft body, the conveying pipe guide power device and the circle supporting power device are opposite in direction, and the conveying pipe guide power device is used for driving the conveying pipe guide cone to move towards the head of the shaft body to stretch out or retract.

Preferably, the end part of the tip cone facing the circle supporting part is inclined, the end part of the pressing plate facing the circle supporting part is planar, a first power device is mounted at the head of the shaft body, the first power device is connected with a transmission rod in an inner cavity of the shaft body and used for driving the transmission rod to move and extend out or retract, a first limiting hole and a second limiting hole are formed in the outer part of the shaft body in a penetrating manner at positions corresponding to the pressing plate and the tip cone, the first limiting hole and the second limiting hole penetrate through the transmission rod, and a third limiting hole matched with the outer wall of the tip cone is formed in the position corresponding to the first limiting hole; and a fourth limiting hole matched with the second limiting hole is formed in the position, corresponding to the second limiting hole, of the outer wall of the pressing plate.

The utility model has the following beneficial effects: according to the utility model, the automatic welding equipment is adopted to weld the large cylinder, the cone and the small cylinder of the stirring equipment, so that the problems that when the large stirring equipment is processed, the cylinder and the cone are higher, and the crown block is limited by the height of a processing workshop, the cone cannot be hoisted to the position above the cylinder, and needs to be hoisted by other equipment, and the processing process is very troublesome are solved;

the continuous welding machine is adopted for automatic welding, the barrel and the cone are not required to be welded by hands, the efficiency is higher, and the machining process is faster;

the welding quality can be managed in a standardized way, and the detection process can be faster;

the cylinder body is subjected to circle supporting and then welded by the circle supporting component, so that the problem of deformation of the cylinder body is avoided, and particularly when the cylinder body with a large inner diameter is welded, the welding precision can be higher.

Drawings

FIG. 1 is a schematic diagram of a stirring chamber and its workpiece structure of a conventional stirring device.

Fig. 2 is a schematic side view of the overall structure of the present invention.

Fig. 3 is a schematic front view of the overall structure of the present invention.

FIG. 4 is a schematic side view of the structure of the present invention fitted with a weld workpiece.

FIG. 5 is a schematic structural diagram of a shaft body, a rounding component, a rounding sleeve, a delivery tube guide cone, a tip cone and a pressure plate according to the present invention.

Fig. 6 is a schematic view of the fixing back plate structure of the present invention.

FIG. 7 is a schematic cross-sectional view of the structure of the shaft body, the rounding component, the rounding sleeve, the delivery tube guide cone, the tip cone and the pressure plate of the present invention.

Fig. 8 is a partially enlarged schematic view at a in fig. 7.

Fig. 9 is a partially enlarged schematic view at B in fig. 7.

Fig. 10 is a partially enlarged schematic view at C in fig. 4.

FIG. 11 is a schematic front view of another embodiment of the present invention equipped with a welded workpiece.

FIG. 12 is a schematic top view of another embodiment of the present invention, assembled with a welding workpiece.

FIG. 13 is a schematic top view of a polishing member polishing a welded workpiece according to another embodiment of the utility model.

FIG. 14 is a schematic front view of a polishing member according to another embodiment of the present invention.

Fig. 15 is a schematic structural diagram of another embodiment of the present invention.

In the attached drawings, 1, a frame; 1000. a drive member; 1001. an axle support;

2. a shaft body; 20. a transmission rod; 21. a first limit hole; 22. a second limiting hole;

3. a large cylinder body;

4. a cone;

5. a small cylinder;

6. a rounding member; 60. fixing the back plate; 600. a first connection hole; 601. a limiting cavity;

61. a sector-shaped panel; 610. a kidney-shaped hole; 611. reinforcing ribs;

7. supporting a circular sleeve; 70. a circle supporting power device;

8. a conveying pipe guide cone; 80. the conveying pipe is guided to the power device;

9. pressing a plate; 90. a fourth limiting hole;

10. a tip cone; 101. a third limiting hole;

11. a first power unit;

12. automatic continuous welding machine;

13. a sliding track;

14. polishing the machine; 15. a large slide plate; 16. a middle slide plate; 17. a small slide plate; 18. a blocking plate; 19. a pushing part; 20. a chute.

Detailed Description

To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.

As shown in fig. 2 to 10, the present invention provides an automatic welding device for the exterior of a cylinder,

comprises a frame 1;

a drive part 1000 is arranged at the tail section of the rack 1 to form a drive area, and a detachable shaft support 1001 is arranged at the front section of the rack 1;

the shaft body 2 is placed on the frame 1, the tail part of the shaft body 2 drives the shaft body 2 to rotate through the transmission of the driving part 1000 (in this embodiment, the driving part 1000 is a speed reduction motor, in other embodiments, it can also be a common motor and driven by a belt or a gear, since the driving mode and structure of driving the shaft body 2 to rotate through the driving part 1000 are the prior art, it is not described here any more, the head part of the shaft body 2 is supported by the shaft support bracket 1001, so that the shaft body 2 is placed in parallel and can rotate;

a sliding rail 13 and an automatic continuous welding machine 12 are arranged outside the frame 1, a welding gun nozzle is manually started to weld after corresponding to a joint gap of a workpiece to be welded, and the welding gun nozzle is used for carrying out rotary circumferential welding on the large cylinder 3, the cone 4 and the small cylinder 5 to be welded, which are sleeved on the shaft body 2 (in other embodiments, the automatic continuous welding machine 12 can also be replaced by an automatic welding robot which can automatically find the joint gap of the workpiece to be welded for welding), and the bottom of the automatic continuous welding machine 12 is slidably arranged on the sliding rail 13;

two rounding components 6 are arranged on the middle part of the shaft body 2 at intervals,

a rounding sleeve 7 is sleeved on the shaft body 2 at the outer side of one surface of each rounding component 6 facing the head part of the shaft body 2, the end part of each rounding sleeve 7 is inclined,

the shaft body 2 is symmetrically provided with circle supporting power devices 70 behind the circle supporting sleeve 7 for driving the circle supporting sleeve 7 to move towards the circle supporting part 6 to extend or retract (in this embodiment, the circle supporting power devices 70 are cylinders, in other embodiments, hydraulic cylinders or reciprocating screws may be used, and the driving mode and structure for driving the circle supporting sleeve 7 to move through the power devices are the prior art, so that the details are not described herein again);

the rounding member 6 includes: a fixed back plate 60 and a sector-shaped face plate 61 movably connected to the fixed back plate 60 and capable of radially extending and retracting along the surface of the fixed back plate 60;

the sector-shaped panel 61 is provided with four blocks, the four sector-shaped panels 61 are spliced into an integral round shape,

each sector panel 61 is provided with a waist-shaped hole 610, a first connecting hole 600 is formed in the position, corresponding to the waist-shaped hole 610, of the fixed back plate 60, and after the fixed back plate 60 is screwed into the first connecting hole 600 through a bolt, the sector panels 61 can be guided when being stretched and retracted; furthermore, a cylindrical spring can be sleeved on the bolt, and the cylindrical spring abuts against the sector panel 61, so that the sector panel 61 and the fixed back plate 60 can be tightly fitted, which is beneficial to radial extension and retraction (not shown) of the sector panel 61 on the fixed back plate 60, because if the circular spring is not installed, the sector panel 61 and the fixed back plate 60 cannot be tightly fitted, which may cause the problem of offset displacement when the sector panel 61 is spread;

each sector panel 61 is provided with reinforcing ribs 611 at intervals, a fixing rod (not shown in the figure) penetrates between every two adjacent reinforcing ribs 611, a tension spring (not shown in the figure) is hooked between the fixing rod and the circle supporting sleeve 7 (in other embodiments, the tension spring can be replaced by a rubber belt with tension resilience), and when the circle supporting sleeve 7 is displaced and retracted, the spring can pull the sector panel 61 to retract, so that the cylinder welded by a circle is conveniently hoisted;

the tail end of each sector panel 61, which is attached to the shaft body 2, is in an inward-inclined arc shape, that is, the tail end of each sector panel 61 is in an inward-recessed arc shape which is matched with the end of the corresponding circle supporting sleeve 7;

when the circle supporting sleeve 7 is extended out, the fan-shaped panel 61 can be unfolded through the matching with the tail end part of the fan-shaped panel 61, namely, the large cylinder 3 to be welded is supported,

an inward concave limiting cavity 601 is formed at the edge of the middle opening of the fixed back plate 60 and is used for limiting when the circle supporting sleeve 7 extends out of and props the sector panel 61, so that the problems that the circle supporting sleeve 7 extends too far, the expanding range of the sector panel 61 is too large, and the large barrel 3 is cracked are avoided;

the edge of the head end part of the fan-shaped panel 61 is designed to be a chamfer, the edge at the chamfer is a combination gap for tightly butting the head end of the large cylinder 3 and the tail end of the cone 4, and the chamfer edge at the head end part of the fan-shaped panel 61 can also play a role in positioning the tail end of the cone 4, so that the welding is convenient.

A conveying pipe guide cone 8 is arranged outside the rounding part 6 which is closest to the head part of the shaft body 2 on the shaft body 2;

the conveying pipe guide cone 8 is sleeved on the shaft body 2, the end part of the conveying pipe guide cone 8 is inclined,

the shaft body 2 is symmetrically provided with conveying pipe guiding power devices 80 behind the supporting cone sleeve, the conveying pipe guiding power devices 80 are opposite to the direction of the rounding power device 70, and the conveying pipe guiding power devices 80 are used for driving the conveying pipe guiding cones 8 to move towards the head of the shaft body 2 to extend or retract (in the embodiment, the conveying pipe guiding power devices 80 are air cylinders, in other embodiments, hydraulic cylinders or reciprocating screw rods can be used, and as the driving mode and the structure for driving the conveying pipe guiding cones 8 to move through the power devices are the prior art, the description is omitted herein);

a pressing plate 9 and a tip cone 10 are sequentially detachably sleeved on the shaft body 2 close to the head of the shaft body 2;

the tip cone 10 is sleeved on the shaft body 2, the end part of the tip cone 10 facing the circle supporting part 6 is inclined,

the pressing plate 9 is sleeved on the shaft body 2, the end part of the pressing plate 9 facing the circle supporting part 6 is in a plane shape,

a first power device 11 is installed at the head of the shaft body 2, and the first power device 11 is connected to a transmission rod 20 in the inner cavity of the shaft body 2 to drive the transmission rod 20 to extend or retract in a displacement manner (in this embodiment, the first power device 11 is an air cylinder, and in other embodiments, the first power device may be a hydraulic oil cylinder or a reciprocating screw rod, and since the driving manner and the structure for driving the transmission rod 20 to displace by the power device are the prior art, the description is omitted);

a first limit hole 21 and a second limit hole 22 are formed outside the shaft body 2 at positions corresponding to the pressing plate 9 and the tip cone 10 in a penetrating manner, the first limit hole 21 and the second limit hole 22 penetrate through the transmission rod 20,

a third limiting hole 101 matched with the outer wall of the tip cone 10 is formed in the position corresponding to the first limiting hole 21; the outer wall of the pressing plate 9 is provided with a fourth limiting hole 90 corresponding to the second limiting hole 22.

In another embodiment of the automatic welding equipment for the outer part of the cylinder as shown in fig. 11-14, a sliding rail 13 is also arranged at the other side outside the frame 1, and a polishing part is arranged at the position corresponding to the automatic continuous welding machine 12, and the bottom of the polishing part is slidably arranged on the sliding rail 13 at the other side outside the frame 1;

the polishing part comprises a polishing machine 14, a large sliding plate 15, a middle sliding plate 16 and a small sliding plate 17, the polishing machine 14 is laterally installed on the small sliding plate 17, the small sliding plate 17 is connected with the middle sliding plate 16 through a sliding chute 20, the middle sliding plate 16 is connected with the large sliding plate 15 through the sliding chute 20, and the central axis of a polishing wheel of the polishing machine 14 is horizontal to the central axis of a workpiece to be welded and is positioned on the same central axis;

a blocking plate 18 is arranged on the middle sliding plate 16, a pushing part 19 is arranged between the small sliding plate 17 and the blocking plate 18, and the pushing part 19 pushes the polishing machine 14 to abut against a welding seam welded by the automatic continuous welding machine 12 for polishing (the pushing part is a spring in the embodiment, the spring is released after shrinkage and deformation so as to push the small sliding plate 17, so that the polishing machine 14 abuts against the welding seam welded by the automatic continuous welding machine 12 for polishing, and in other embodiments, the pushing part can also be a device such as a micro cylinder or a micro ball screw and the like which can push the small sliding plate 17);

the shaft body 2 is driven by the driving part 1000 of the frame to drive the shaft body 2 to do rotary motion, namely, when the large barrel 3, the cone 4 and the small barrel 5 on the shaft body 2 are in rotary circumferential welding, the polishing part opposite to the automatic continuous welding machine 12 can polish the welded welding line, the rotating direction of the polishing machine is tangential to the rotating direction of the shaft body 2, and is further combined with the structure that the central axis of the polishing wheel of the upper polishing machine 14 is horizontal to the central axis of a workpiece to be welded and is positioned on the same central axis, so that the polishing effect of the polishing machine is better, the continuous welding machine can carry out continuous welding, and the polishing can be carried out simultaneously;

as shown in fig. 12 and 13, the three-section sliding plate connection structure is adopted, so that the polishing machine 14 can polish the welding seam of the large cylinder 3 and the cone 4, and can polish the welding seam of the cone 4 and the small cylinder 5.

In another embodiment of the automatic welding equipment for the exterior of the cylinder shown in fig. 15, according to the structure and principle described in the above embodiment, in some application scenarios, when vertical welding is required, corresponding structural modification can be performed, such as replacing a base, erecting the shaft body 2 to be installed and fixed thereon, and then the corresponding circle supporting member 6 is sleeved on the shaft body, so that vertical welding can be performed on the cylinder, and the applicability is wider.

In other embodiments, the automatic welding equipment in the present invention is not limited to the application scenario of three-stage workpiece welding, such as a large cylinder, a cone, and a small cylinder, and according to the structure and principle described in the above embodiments, corresponding structural modification can be performed according to actual requirements, for example, more circle supporting members are added on the shaft body, and the automatic welding equipment can be applied to welding between multiple stages of circular cylinders; or chamfering both sides of the head end part edge of the sector panel of the circle supporting part to weld the two cones which are mirror images.

When the utility model is used, the steps are as follows:

the shaft support 1001 at the front section of the frame 1 of the automatic welding equipment is detached;

transversely hoisting a large barrel 3 welded with a longitudinal seam into a rack 1 and placing the large barrel on a circle supporting part 6, transversely hoisting a cone 4 welded with the longitudinal seam into the rack 1, wherein the tail end of the cone 4 abuts against a chamfer of the circle supporting part 6 closest to the head of a shaft body 2, the head end of the cone 4 abuts against a top cone 10, starting a circle supporting power device 70, enabling a circle supporting sleeve 7 to move and extend out, the fan-shaped panel 61 can be supported through matching with the tail end part of the fan-shaped panel 61, the inside of the head end and the tail end of the large barrel 3 is supported, penetrating a limiting rod through a third limiting hole 101 and a first limiting hole 21 of the top cone 10, starting a first power device 11, and enabling the tail end of the cone 4 to approach to the head end of the large barrel 3 by the top cone 10 so as to enable the tail end of the large barrel and the head end to be tightly butted;

the shaft support 1001 at the front section of the frame 1 of the automatic welding equipment supports the head of the shaft body 2;

a driving part 1000 of the starting frame 1 drives the shaft body 2 to rotate, a welding gun nozzle is correspondingly welded after a joint gap of a workpiece to be welded is started, initial spot welding is carried out for fixing a position, and then continuous welding is carried out;

after the cone 4 and the large cylinder 3 are welded, suspending the driving part 1000 of the frame 1;

the circle supporting power device 70 retracts, the circle supporting sleeve 7 retracts in a displacement mode, the sector panel 61 retracts synchronously, the first power device 11 retracts, the tip cone 10 is dismounted, the conveying pipe guiding power device 80 is started to enable the conveying pipe guiding cone 8 to move towards the head of the shaft body 2 and extend out, and the cone 4 and the large cylinder body 3 are loosened;

the shaft support 1001 at the front section of the rack 1 of the automatic welding equipment is dismounted, the small barrel 5 is transversely hoisted into the rack 1, the pressing plate 9 is placed in, the shaft support 1001 supports the head of the shaft body 2 again, the fourth limiting hole 90 and the second limiting hole 22 of the pressing plate 9 penetrate through the limiting rods, the first power device 11 is started, and the pressing plate 9 enables the tail end of the small barrel 5 to approach the head end of the cone 4 so as to enable the small barrel 5 and the cone 4 to be in tight butt joint;

a driving part 1000 of a starting frame 1 drives a shaft body 2 to rotate, a welding gun nozzle is correspondingly welded after a joint gap of a workpiece to be welded, initial spot welding is carried out for fixing a position, and then continuous welding is carried out;

after the small cylinder 5 and the cone 4 are welded, suspending the driving part 1000 of the frame 1;

the shaft support 1001 at the front section of the frame 1 of the automatic welding equipment is detached;

the first power device 11 retracts, the pressing plate 9 is detached, the workpiece which is integrally formed after the large cylinder 3, the cone 4 and the small cylinder 5 are welded is hoisted and moved outwards, the next assembly welding is carried out, and the operation is repeated.

According to the utility model, the large barrel 3, the cone 4 and the small barrel 5 of the stirring equipment are welded by adopting horizontal automatic welding equipment, so that the problems that when the large stirring equipment is processed, the heights of the barrel and the cone 4 are high, and a crown block is limited by the height of a processing workshop, the cone 4 cannot be hoisted to the position above the barrel, the hoisting is needed by other equipment, and the processing process is very troublesome are solved;

the continuous welding machine is adopted for automatic welding, the cylinder and the cone 4 do not need to be welded by hands, the efficiency is higher, and the processing process is faster;

the welding quality can be managed in a standardized way, and the detection process can be faster;

the rounding component 6 is adopted to round and weld the large cylinder 3, so that the problem of deformation of the large cylinder 3 is avoided, especially when the large-inner-diameter cylinder is welded, the welding precision can be higher, for example, when the inner diameter of the cylinder is 2050MM, the welding precision of the cylinder can reach +/-0.15 MM.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. The utility model provides an outside automatic weld equipment of barrel which characterized in that includes:

a frame (1); the driving component (1000) is placed at the tail section of the rack (1) to form a driving area, the detachable shaft support frame (1001) is installed at the front section of the rack (1), the shaft body (2) is placed on the rack (1) and drives the shaft body (2) to rotate through the driving component (1000), and the head of the shaft body (2) is supported by the shaft support frame (1001), so that the shaft body (2) is placed in parallel and can rotate;

the welding shaft is characterized in that two circle supporting parts (6) are arranged in the middle of the shaft body (2) at intervals and used for supporting circles of workpieces to be welded, a circle supporting sleeve (7) is sleeved on the shaft body (2) on the outer side of one surface, facing the head of the shaft body (2), of each circle supporting part (6), circle supporting power devices (70) are symmetrically arranged behind the circle supporting sleeves (7) of the shaft body (2) and used for driving the circle supporting sleeves (7) to move and extend or retract towards the direction of the circle supporting parts (6), and conveying pipe guide cones (8) are arranged outside the circle supporting parts (6) on the shaft body (2) which are most close to the head of the shaft body (2) and used for pushing the workpieces after welding to be loosened; a pressing plate (9) and a tip cone (10) are sequentially detachably sleeved on the shaft body (2) close to the head of the shaft body (2), and the tip cone (10) enables a workpiece to be welded to approach another workpiece to be welded so as to enable the workpiece to be welded and the other workpiece to be welded to be in tight butt joint; the pressing plate (9) approaches the workpiece to be welded to another workpiece to be welded so that the workpiece to be welded and the workpiece to be welded are in tight butt joint;

an automatic continuous welding machine (12); the welding gun is arranged on the outer side of the frame (1), and the welding gun nozzle is correspondingly welded at the joint seam of the workpieces to be welded.

2. The automatic welding equipment outside a cylinder according to claim 1, characterized in that the end of the rounding sleeve (7) is inclined;

the rounding member (6) comprises: the fixed back plate (60) and the sector face plate (61) are movably connected on the fixed back plate (60) and can radially extend and retract along the surface of the fixed back plate (60); the fan-shaped panel (61) is provided with even blocks which are spliced into an integral round shape;

each sector panel (61) is provided with a waist-shaped hole (610), and a first connecting hole (600) is formed in the position, corresponding to the waist-shaped hole (610), of the fixed back plate (60);

reinforcing ribs (611) are arranged on each sector panel (61) at intervals, a fixed rod penetrates between every two adjacent reinforcing ribs (611), and a tension resilient piece is hooked between the fixed rod and the circle supporting sleeve (7).

3. The automatic welding equipment for the outside of the cylinder body as claimed in claim 2, characterized in that the tail end of each sector panel (61) attached to the shaft body (2) is in the shape of an inward-inclined arc, that is, the tail end of each sector panel (61) is in the shape of an inward-concave arc matched with the end of the corresponding rounding sleeve (7); when the circle supporting sleeve (7) is extended out in a displacement mode, the fan-shaped panel (61) can be unfolded through matching with the tail end of the fan-shaped panel (61), and a workpiece to be welded is supported into a circle.

4. The automatic welding equipment for the outside of the cylinder body as claimed in claim 2, characterized in that the edge of the middle opening of the fixed back plate (60) is formed with a concave limiting cavity (601) which plays a limiting role when the circle expanding sleeve (7) is displaced and extends out of the circle expanding sector-shaped panel (61).

5. The automatic welding equipment for the exterior of the cylinder body as claimed in claim 2, characterized in that the edge of the head end part of the sector panel (61) is designed to be a chamfer, and the edge at the chamfer is a joint gap for butt joint of the head end and the tail end of two workpieces to be welded.

6. The automatic welding equipment for the outside of the cylinder body as claimed in claim 1, wherein the end part of the conveying pipe guide cone (8) is inclined, the shaft body (2) is symmetrically provided with conveying pipe guide power devices (80) behind the support cone sleeve, the conveying pipe guide power devices (80) are opposite to the support cone power devices (70), and the conveying pipe guide power devices (80) are used for driving the conveying pipe guide cone (8) to move and extend or retract towards the head part of the shaft body (2).

7. The automatic welding device outside the cylinder body according to claim 1, the end part of the tip cone (10) facing the circle supporting part (6) is inclined, the end part of the pressure plate (9) facing the circle supporting part (6) is planar, a first power device (11) is arranged at the head part of the shaft body (2), the first power device (11) is connected with the transmission rod (20) in the inner cavity of the shaft body (2) and is used for driving the transmission rod (20) to move, extend or retract, a first limit hole (21) and a second limit hole (22) are perforated on the outer part of the shaft body (2) at the positions corresponding to the pressure plate (9) and the tip cone (10), the first limit hole (21) and the second limit hole (22) penetrate through the transmission rod (20), a third limiting hole (101) matched with the first limiting hole (21) is formed in the outer wall of the tip cone (10) at a position corresponding to the first limiting hole; and a fourth limiting hole (90) matched with the second limiting hole (22) is formed in the outer wall of the pressing plate (9) at a position corresponding to the second limiting hole.

Images