CN214236957U

CN214236957U - Automatic welding device for branch pipe of stainless steel water separator

Info

Publication number: CN214236957U
Application number: CN202023212752.4U
Authority: CN
Inventors: 姚冠华; 张烨; 姚金勇
Original assignee: ZHEJIANG DUNAN AUTOMATION CONTROL TECHNOLOGY CO LTD
Current assignee: ZHEJIANG DUNAN AUTOMATION CONTROL TECHNOLOGY CO LTD
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-21
Anticipated expiration: 2030-12-28

Abstract

The invention discloses an automatic welding device for a branch pipe of a stainless steel water separator, wherein the stainless steel water separator comprises a main pipe and a branch pipe, the automatic welding device comprises a machine table, a workbench capable of moving left and right is arranged on the machine table, a plurality of main pipe supports which are linearly arranged are arranged on the workbench, and the main pipe supports are used for supporting the main pipe; the rotary argon arc welding machine is arranged above the main pipe, when the rotary argon arc welding machine is used for welding, a workpiece is fixed, the welding gun rotates, after one branch pipe is welded, the workpiece moves to a welding point position, the welding gun continues to weld a second branch pipe and operates in sequence, so that the branch pipe can be welded by the workpiece of the whole branch pipe at one time, the welding efficiency is improved to a great extent, the machining mode is improved, and the production cost is effectively reduced.

Description

Automatic welding device for branch pipe of stainless steel water separator

Technical Field

The invention relates to the technical field of branch pipe welding of a stainless steel water separator, in particular to an automatic branch pipe welding device of the stainless steel water separator.

Background

The stainless steel water separator comprises a main pipe and branch pipes, wherein during processing, a plurality of holes are formed in the side wall of the main pipe, and then the branch pipes are welded on the hole positions of the main pipe respectively. At present, a stainless steel main pipe fitting is vertically arranged in a basic branch pipe welding mode, the main pipe performs rotary welding by taking a to-be-welded branch pipe as a center, a welding gun is fixed in position, after one branch pipe is welded, a tool needs to be disassembled and assembled, then a second branch pipe is welded, and when one branch pipe is welded, the assembling and disassembling need to be performed once, so that the welding efficiency is low, and the production cost is high.

Disclosure of Invention

The invention aims to provide an automatic welding device for a branch pipe of a stainless steel water separator, so as to improve the welding efficiency.

In order to achieve the above purpose, the invention provides the following technical scheme: an automatic welding device for a branch pipe of a stainless steel water separator comprises a main pipe and the branch pipe, wherein the automatic welding device comprises a machine table, a workbench capable of moving left and right is arranged on the machine table, a plurality of main pipe supports which are linearly arranged are arranged on the workbench, and the main pipe supports are used for supporting the main pipe;

the automatic argon arc welding machine is characterized in that at least one rotary argon arc welding machine is arranged above the main pipe and comprises a first mounting plate, a second mounting plate, an air cylinder, a first servo motor, a welding gun frame and a welding gun, wherein the first mounting plate is fixedly mounted above the machine table, the air cylinder is fixedly mounted on the first mounting plate, the output end of the air cylinder faces downwards and is connected with the second mounting plate, the first servo motor is fixedly mounted on the second mounting plate, the output end of the first servo motor faces downwards and is connected with a motor connecting shaft, the welding gun frame is fixedly connected onto the motor connecting shaft, and a welding gun muzzle is obliquely and downwards arranged on the welding gun frame; the bottom of the motor connecting shaft is provided with a conical positioning top.

Preferably, the main pipe support is provided with a V-shaped groove, and the main pipe is placed in the V-shaped groove.

Preferably, the position of the main pipe support on the work table is adjustable in the arrangement direction of the main pipe supports.

Preferably, the welding gun frame comprises a welding gun frame bottom plate, a first sliding table cylinder, a second sliding table cylinder and a fixing frame group, the welding gun frame bottom plate is fixedly connected to the side face of the motor connecting shaft, the first sliding table cylinder can be arranged on the welding gun frame bottom plate in a sliding mode along the direction perpendicular to the welding gun, and the output end of the first sliding table cylinder is fixedly connected with the welding gun frame bottom plate; the second sliding table cylinder can be arranged on the first sliding table cylinder in a sliding mode along a direction parallel to the welding gun, and the output end of the second sliding table cylinder is fixedly connected with the first sliding table cylinder; and the welding gun is arranged on the second sliding table cylinder through the fixing frame group.

Preferably, the fixed frame group comprises a first fixed frame, a second fixed frame and a third fixed frame, the first fixed frame is fixedly installed on the second sliding table cylinder and is perpendicular to the moving direction of the second sliding table cylinder, the first fixed frame is provided with two strip-shaped grooves which are parallel to each other along the length direction, and the second fixed frame is provided with one strip-shaped groove along the length direction; the second fixing frame is fixedly arranged on the first fixing frame through bolts, and the bolts sequentially penetrate through the first fixing frame and the strip-shaped grooves in the second fixing frame; the third fixing frame fixes the welding gun on the second fixing frame.

Preferably, a second servo motor is arranged on the machine table and connected with the workbench through a screw nut transmission mechanism for driving the workbench to move.

Preferably, the machine table is further provided with an auxiliary positioning mechanism on one side of the working table, the auxiliary positioning mechanism comprises a positioning support, a rotating support and a positioning rod, the rotating support is rotatably arranged at the top of the positioning support, the positioning rod is vertically and fixedly arranged at the free end of the rotating support, and the end of the positioning rod is conical.

Preferably, the positioning backer frame comprises a backer bottom frame, a fixing plate horizontally arranged on the backer bottom frame, and an adjusting bracket arranged on the fixing plate, wherein a sliding groove is formed in the fixing plate along the length direction, a screw rod is arranged at the bottom of the adjusting bracket, and the screw rod penetrates through the sliding groove and is locked by a nut; the adjusting bracket is provided with a rotating shaft, and one end of the rotating bracket is arranged on the rotating shaft through a bearing.

Preferably, the adjusting bracket is provided with a limiting block, and when the rotating bracket is abutted against the limiting block, the rotating bracket is horizontal.

Preferably, the rotary support is provided with a positioning groove, and the positioning rod is installed in the positioning groove through a nut.

Compared with the prior art, the invention has the advantages that: according to the automatic welding device for the branch pipes of the stainless steel water separator, provided by the invention, when welding, the workpiece is not moved, the welding gun rotates, after one branch pipe is welded, the workpiece is moved to the welding spot position, and the welding gun continues to weld the second branch pipe and runs in sequence, so that the branch pipes can be welded by the workpiece of the whole multi-branch pipe at one time, the welding efficiency is improved to a great extent, the processing mode is improved, and the production cost is effectively reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a side view schematically showing the structure of the main pipe support of the present invention.

Fig. 3 is a schematic view of the mounting structure of the welding gun holder according to the present invention.

Fig. 4 is a schematic structural view of the backer chassis of the present invention.

Fig. 5 is a schematic side view of the auxiliary positioning mechanism of the present invention.

Fig. 6 is a schematic structural view of the stainless steel water separator of the present invention.

In the figure: 1. a machine platform; 2. a workbench 21, a second servo motor 22, a main pipe support 23 and a V-shaped groove; 3. the rotary argon arc welding machine comprises a rotary argon arc welding machine 31, a first mounting plate 32, a second mounting plate 33, a cylinder 34, a first servo motor 35, a motor connecting shaft 36 and a positioning plug; 4. the welding gun comprises a welding gun frame 41, a welding gun frame bottom plate 42, a first sliding table cylinder 43, a second sliding table cylinder 44, a first fixing frame 45, a second fixing frame 46, a third fixing frame 47 and a welding gun; 5. the device comprises a positioning hill-rest frame 51, a hill-rest base frame 52, a fixing plate 53, an adjusting bracket 54, a screw rod 55, a rotating shaft 56 and a limiting block; 6. a rotating bracket 61 and a positioning rod; 7. a main pipe; 8. and (4) branch pipes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by way of embodiments in combination with the accompanying drawings.

In the description of the present application, it should be noted that the terms "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Example (b): an automatic welding device for branch pipes of a stainless steel water separator is shown in figures 1-6 and comprises a machine table 1, a workbench 2 and a rotary argon arc welding machine 3, wherein the workbench 2 is arranged on the machine table 1 in a manner of moving left and right through a sliding rail, a second servo motor 21 is arranged on the machine table 1, and the second servo motor 21 drives the workbench 2 to move left and right through a screw-nut transmission mechanism (in a conventional transmission mode, not shown in the figures, specifically, an output shaft of the second servo motor is connected with a screw rod, the nut is fixed with the workbench, and the screw rod is in threaded matching with the nut). The workbench 2 is provided with a plurality of main pipe supports 22 which are arranged in a straight line, the main pipe supports 22 are provided with V-shaped grooves 23 for supporting the main pipe during welding, the main pipe is placed in the V-shaped grooves 23, and the opening of the pipe wall of the main pipe is upward.

In the above structure, the position of the main pipe support 22 on the workbench 2 can be adjusted along the arrangement direction (i.e. left-right direction) of the main pipe support 22, specifically, a fixing groove can be arranged on the workbench 2 along the length direction, the bottom of the main pipe support 22 is fixed in the fixing groove by a bolt, and when the position needs to be adjusted, the nut is unscrewed to move left and right. The purpose of the primary pipe support 22 position adjustment is to accommodate primary pipes of different length sizes.

The rotary argon arc welding machines 3 are arranged above the workbench 2, and the number of the rotary argon arc welding machines can be one, or a plurality of the rotary argon arc welding machines can be used for simultaneously welding the stainless steel water distributors with the same type. The rotary argon arc welding machine 3 comprises a first mounting plate 31, a second mounting plate 32, a cylinder 33, a first servo motor 34, a welding gun frame 4 and a welding gun 47, wherein the first mounting plate 31 is fixedly arranged above the workbench 2, the cylinder 33 is fixedly arranged on the first mounting plate 31, and the output end of the cylinder 33 is downward and is connected with the second mounting plate 32; the first servo motor 34 is fixedly arranged on the second mounting plate 32, the output end of the first servo motor 34 is downward and connected with a motor connecting shaft 35, the welding gun frame 4 is fixedly connected to the side surface of the motor connecting shaft 35, and the welding gun 47 is obliquely and downward arranged on the welding gun frame 4; the bottom end of the motor connecting shaft 35 is provided with a conical positioning top head 36.

In the structure, the air cylinder 33 is used for driving the second mounting plate 32 to lift, so as to drive the positioning top head 36 and the welding gun 47 to lift; the first servo motor 34 is used for driving the motor connecting shaft 35 to rotate, so that the welding gun 47 is driven to rotate by taking the motor connecting shaft 35 as an axis, and in the welding process, the muzzle of the welding gun 47 is always aligned with the connecting position of the branch pipe and the main pipe and rotates around the connecting position, and the interface of the branch pipe is welded.

Further, the welding gun frame 4 includes a welding gun frame bottom plate 41, a first sliding table cylinder 42, a second sliding table cylinder 43 and a fixed frame group, the welding gun frame 41 bottom plate is fixedly connected to the side surface of the motor connecting shaft 35, the first sliding table cylinder 42 can be slidably arranged on the welding gun frame bottom plate 41 along the direction perpendicular to the welding gun 47 (specifically, the first sliding table cylinder can be connected by a sliding rail), the output end of the first sliding table cylinder 42 is fixedly connected with the welding gun frame bottom plate 41, and when the first sliding table cylinder 42 works, the output end of the first sliding table cylinder 42 is fixed with the welding gun frame bottom plate 41, so that the first sliding table cylinder 42 is pushed to move; the second sliding table cylinder 43 is slidably arranged on the first sliding table cylinder 42 along a direction parallel to the welding gun 47, the output end of the second sliding table cylinder 43 is fixedly connected with the first sliding table cylinder 42, and similarly, when the second sliding table cylinder 43 works, the second sliding table cylinder 43 is pushed to move; the welding gun 47 is mounted on the second slide table cylinder 43 through a set of holders.

In the structure, the first sliding table air cylinder 42 and the second sliding table air cylinder 43 are used for driving the welding gun 47 to approach a welding point or retreat the welding gun 47 after welding is completed during welding, so that the interference between the welding gun 47 and the branch pipe in the lifting process is avoided; specifically, the first sliding table cylinder 42 drives the second sliding table cylinder 43 to move in a direction perpendicular to the welding gun 47 when working, and the second sliding table cylinder 43 drives the fixing frame group and the welding gun 47 to move in a linear direction of the welding gun 47 when working.

Furthermore, the fixed frame group comprises a first fixed frame 44, a second fixed frame 45 and a third fixed frame 46, the first fixed frame 44 is fixedly installed on the second sliding table cylinder 43 and is perpendicular to the moving direction of the second sliding table cylinder 43, the first fixed frame 44 is provided with two strip-shaped grooves which are parallel to each other along the length direction, and the second fixed frame 45 is provided with one strip-shaped groove along the length direction; the second fixing frame 45 is fixedly arranged on the first fixing frame 44 through bolts, and the bolts sequentially penetrate through the first fixing frame 44 and the strip-shaped grooves in the second fixing frame 45; the third fixing frame 46 fixes the welding gun 47 to the second fixing frame 45, and specifically, the third fixing frame 46 is fixedly connected with the second fixing frame 45 and "holds" the welding gun in the middle.

In the structure, the position and the angle of the welding gun 47 can be manually adjusted through the strip-shaped grooves on the first fixing frame 44 and the second fixing frame 45 during the installation and debugging of the equipment, so that the muzzle of the welding gun 47 can be close to and aligned with the welding point during the work.

In the embodiment, during welding, firstly, the branch pipes to be welded are respectively installed in the openings of the main pipe, then the main pipe needs to be positioned, specifically, the main pipe is lifted up to enable the first branch pipe on the left side to correspond to the positioning top 36, then the cylinder 33 works to drive the positioning top 36 to descend, and in the process, the positioning top 36 is always ensured to correspond to the branch pipe until the main pipe is placed in the V-shaped groove 23 on the main pipe support 22; then, the position and the angle of the welding gun 47 are adjusted through the fixing frame group, so that the welding gun 47 is aligned to a welding spot, and the one-time moving distance of the second servo motor 21 for driving the workbench is just equal to the distance between the branch pipes; then the first servo motor 34 starts to work to drive the welding gun 47 to rotate around the branch pipe, and the welding of the branch pipe is completed; after welding is finished, firstly, the second sliding table air cylinder 43 works to drive the welding gun 47 to move in the direction away from a welding point, then, the air cylinder 33 works to drive the welding gun 47 to ascend, and meanwhile, the first servo motor 34 rotates reversely to drive the welding gun 47 to reset; then the second servo motor 21 works to drive the workbench 2 to move, so that the position of the second branch pipe is moved to the position same as that of the first branch pipe when being welded, then the cylinder 33 pushes downwards again, the positioning ejector 36 pushes against the pipe orifice at the top of the branch pipe (except that the first branch pipe needs manual positioning, other branch pipes can be automatically positioned), then the second sliding table cylinder 43 works to push the welding gun 47 to be close to the joint of the branch pipe and the main pipe, then the first servo motor 34 drives the welding gun 47 to rotate for welding, and the welding of the plurality of branch pipes is completed in sequence in a circulating manner.

In the above structure, in principle, each main pipe needs to be manually positioned by the positioning plug 36 before welding, and the matching of the air cylinder 33 is needed, which is complicated. However, the types of the main pipes to be welded in the same batch are generally the same, in order to simplify the welding and positioning work of the stainless steel water separators in the same type, in this embodiment, an auxiliary positioning mechanism is further arranged on one side of the workbench on the machine table, after the first main pipe is positioned by the positioning plug 36, the auxiliary positioning mechanism is used to mark the position, and then the other main pipes in the back only need to be positioned by the auxiliary positioning mechanism, thereby simplifying the positioning work.

Specifically, the auxiliary positioning mechanism comprises a positioning hill-rest 5, a rotating bracket 6 rotatably arranged at the top of the positioning hill-rest 5, and a positioning rod 61 vertically and fixedly arranged at the free end of the rotating bracket, wherein the end of the positioning rod 61 is conical.

In the above structure, the positioning hill-rest 5 comprises a hill-rest base frame 51, a fixing plate 52 horizontally arranged on the hill-rest base frame 51, and an adjusting bracket 53 arranged on the fixing plate 52, wherein a sliding groove is arranged on the fixing plate 52 along the length direction, a screw 54 is arranged at the bottom of the adjusting bracket 53, the screw 54 passes through the sliding groove and is locked by two nuts, and the position of the adjusting bracket 53 on the sliding groove and the height of the adjusting bracket 53 can be adjusted by loosening the nuts; the adjusting bracket 53 is provided with a rotating shaft 55, and one end of the rotating bracket 6 is arranged on the rotating shaft 55 through a bearing. Be equipped with the constant head tank on the runing rest 6, pass the constant head tank after with nut locking, can adjust the position of location stick 61 on runing rest 6 through loosening the nut with location stick 61. In addition, be equipped with stopper 56 on adjusting bracket 53, when runing rest 6 contradicted with stopper 56, runing rest 6 was in the horizontality, and location stick 61 is in vertical state.

After the first branch pipe of the first main pipe is positioned by the positioning plug 36, the position and the height of the bracket 53 on the chute are adjusted, and the position of the positioning rod 61 on the rotary bracket 6 is adjusted, so that the positioning rod 61 corresponds to any other branch pipe of the main pipe except the first branch pipe, namely, the position of the branch pipe is marked by the positioning rod 61, and then the rotary bracket 6 is turned backwards, and then the subsequent welding can be carried out; when the second main pipe needs to be welded, the positioning can be completed only by enabling the branch pipes at the same position on the second main pipe to correspond to the positioning rods 61.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The automatic welding device for the branch pipe of the stainless steel water separator comprises a main pipe and the branch pipe, and the automatic welding device comprises a machine table, and is characterized in that a workbench capable of moving left and right is arranged on the machine table, a plurality of main pipe supports which are linearly arranged are arranged on the workbench, and the main pipe supports are used for supporting the main pipe;

2. The automatic welding device for the branch pipe of the stainless steel water separator according to claim 1, wherein a V-shaped groove is formed on the main pipe support, and the main pipe is placed in the V-shaped groove.

3. The automatic welding device for the branch pipes of the stainless steel water separator according to claim 1 or 2, wherein the position of the main pipe support on the workbench is adjustable along the arrangement direction of the main pipe supports.

4. The automatic welding device for the branch pipe of the stainless steel water separator according to claim 1, wherein the welding gun frame comprises a welding gun frame bottom plate, a first sliding table cylinder, a second sliding table cylinder and a fixing frame group, the welding gun frame bottom plate is fixedly connected to the side face of the motor connecting shaft, the first sliding table cylinder is slidably arranged on the welding gun frame bottom plate along a direction perpendicular to a welding gun, and the output end of the first sliding table cylinder is fixedly connected with the welding gun frame bottom plate; the second sliding table cylinder can be arranged on the first sliding table cylinder in a sliding mode along a direction parallel to the welding gun, and the output end of the second sliding table cylinder is fixedly connected with the first sliding table cylinder; and the welding gun is arranged on the second sliding table cylinder through the fixing frame group.

5. The automatic welding device for the branch pipes of the stainless steel water separator according to claim 4, wherein the fixing frame group comprises a first fixing frame, a second fixing frame and a third fixing frame, the first fixing frame is fixedly installed on the second sliding table cylinder and is perpendicular to the moving direction of the second sliding table cylinder, two strip-shaped grooves which are parallel to each other are formed in the first fixing frame along the length direction, and one strip-shaped groove is formed in the second fixing frame along the length direction; the second fixing frame is fixedly arranged on the first fixing frame through bolts, and the bolts sequentially penetrate through the first fixing frame and the strip-shaped grooves in the second fixing frame; the third fixing frame fixes the welding gun on the second fixing frame.

6. The automatic welding device for the branch pipes of the stainless steel water separator according to claim 1, wherein a second servo motor is arranged on the machine table, and the second servo motor is connected with the workbench through a lead screw nut transmission mechanism and used for driving the workbench to move.

7. The automatic welding device for the branch pipes of the stainless steel water separator according to claim 1, wherein an auxiliary positioning mechanism is further arranged on one side of the machine platform, which is located on the workbench, and comprises a positioning support, a rotating support rotatably arranged on the top of the positioning support, and a positioning rod vertically and fixedly arranged at the free end of the rotating support, and the end of the positioning rod is conical.

8. The automatic welding device for the branch pipe of the stainless steel water separator according to claim 7, wherein the positioning hill-rest comprises a hill-rest base frame, a fixing plate horizontally arranged on the hill-rest base frame, and an adjusting bracket arranged on the fixing plate, wherein a sliding groove is formed in the fixing plate along the length direction, a screw rod is arranged at the bottom of the adjusting bracket, and the screw rod penetrates through the sliding groove and is locked by a nut; the adjusting bracket is provided with a rotating shaft, and one end of the rotating bracket is arranged on the rotating shaft through a bearing.

9. The automatic welding device for the branch pipe of the stainless steel water separator according to claim 8, wherein a limiting block is arranged on the adjusting bracket, and when the rotating bracket is abutted against the limiting block, the rotating bracket is horizontal.

10. The automatic welding device for the branch pipes of the stainless steel water separator according to claim 8, wherein the rotating bracket is provided with a positioning groove, and the positioning rod is installed in the positioning groove through a nut.