CN212885914U

CN212885914U - Fixing device for pipe joint welding

Info

Publication number: CN212885914U
Application number: CN202020928785.XU
Authority: CN
Inventors: 崔洪超
Original assignee: Foshan City Nanhai District Hongchang Jufa Electromechanical Valve Co ltd
Current assignee: Foshan City Nanhai District Hongchang Jufa Electromechanical Valve Co ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-04-06
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a fixing device for pipe joint welding, which comprises a frame, wherein a fixing clamp for clamping a pipe fitting and a pipe joint pressing device for pressing and positioning the pipe joint at the end part of the pipe fitting are arranged on the frame, the fixing clamp comprises a fixing clamping seat fixed on the frame and a movable clamping seat capable of being turned and opened relative to the fixing clamping seat, the fixing clamping seat is provided with a first clamping groove, the movable clamping seat is provided with a second clamping groove, and the second clamping groove and the first clamping groove form a pipe fitting clamping hole which is matched with the outer wall of the pipe fitting and can be used for the pipe fitting to pass through and tightly fix the pipe fitting when the movable clamping seat and the fixing clamping seat are spliced; a sliding frame of the pipe joint pressing device is slidably arranged on the rack and can slide towards the direction of the fixed clamp to move the pressing block to the upper part of the pipe joint, and the pressing block descends to press the pipe joint; the pipe joint clamping device is used for clamping a pipe and positioning and fixing the pipe joint on the pipe so that the center of the pipe joint and the center of the pipe are aligned to realize automatic welding of the pipe joint on the pipe through a welding robot, and the pipe joint clamping device is beneficial to improving the welding efficiency of the pipe joint and reducing the labor cost of production.

Description

Fixing device for pipe joint welding

Technical Field

The utility model belongs to the technical field of metal pipe fitting welding production, concretely relates to be used for the fixed pipe fitting of centre gripping and be fixed in the pipe joint location the pipe joint and make both centers align in order to realize can weld the fixing device of pipe joint in the pipe joint through the welding robot is automatic.

Background

The powder tanker discharge pipe shown in figure 1 has two pipe connectors, one of which is used for connecting with the air compressor of the powder tanker, and the other is used for connecting with the tank body of the powder tanker. Above-mentioned pipe fitting is when producing, its both ends coupling needs welded connection on the pipe end, weld the welding operation that above-mentioned coupling welding still by manual welding on pipe fitting tip and other be similar to above-mentioned mode with adapting unit welding on the pipe end at present, not only have the requirement to welder skill and experience, increase welding production's cost of labor, and when welding operation in batches, welder's long-time work is easy tired, welding efficiency is lower, welding quality can't ensure stably, welding quality problem easily appears, can't satisfy the needs of welding production in batches.

Disclosure of Invention

The utility model aims at providing a can be used for the fixed pipe fitting of centre gripping and be fixed in the coupling location the pipe fitting and make both centers align in order to realize can weld the coupling through the welding robot is automatic with the coupling weld the pipe fitting, help improving coupling welding efficiency, ensure the firm steady quality of welding and reduce the fixing device for the coupling welding of production cost of labor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a fixing device for welding a pipe joint comprises a rack, wherein a fixing clamp for clamping a fixed pipe fitting and a pipe joint pressing device for pressing and positioning the pipe joint at the end part of the pipe fitting are arranged on the rack, the fixing clamp comprises a fixing clamping seat fixedly arranged on the rack and a movable clamping seat capable of being turned and movably opened and closed relative to the fixing clamping seat, the fixing clamping seat is provided with a first clamping groove, the movable clamping seat is provided with a second clamping groove, the second clamping groove and the first clamping groove form a pipe fitting clamping hole which is matched with the outer wall of the pipe fitting and can allow the pipe fitting to pass through and tightly fix the pipe fitting when the movable clamping seat and the fixing clamping seat are spliced, and a pipe passing opening for the pipe fitting to pass through is formed in the rack corresponding; the pipe joint pressing device comprises a sliding frame and a pressing block, wherein the pressing block is installed on the sliding frame and can move up and down on the sliding frame, the sliding frame is installed on the rack in a sliding mode and can slide towards the direction of the fixing clamp to move the pressing block to the position above the pipe joint, and the pipe joint is pressed by the pressing block.

The pipe fitting clamping device is matched with a welding robot for use, firstly, a movable clamping seat of a fixed clamp is turned and movably opened relative to a fixed clamping seat, then, a pipe fitting is manually loaded into a first clamping groove of the fixed clamping seat through a pipe passing opening on a rack, then, the movable clamping seat is turned and movably closed, a pipe fitting clamping hole formed by encircling a second clamping groove of the movable clamping seat and the first clamping groove of the fixed clamping seat clamps the fixed pipe fitting, in the process of clamping and fixing the pipe fitting, the end part of the pipe fitting extends out of the fixed clamp, then, the pipe fitting is manually placed on the end part of the pipe fitting and aligned in the center, a press block is moved to the upper part of the pipe fitting by sliding a sliding frame of the pipe fitting pressing device towards the direction of the fixed clamp, the press block descends to press the pipe fitting tightly, then, the automatic welding of the pipe fitting and the splicing part of the pipe fitting is carried, the welding work is carried out without depending on welding workers, only the workers are needed to assist in placing the pipe fittings and the pipe joints, the production labor cost is reduced, the welding efficiency of the pipe joints is improved, the firm welding quality is ensured to be stable, the large-batch welding production is facilitated, the welding quality is prevented from being influenced by human factors, and the welding quality is ensured.

Preferably, a first sliding block is arranged on the sliding frame, a first sliding rail is arranged on the rack, the first sliding block is arranged on the first sliding rail, a rodless cylinder is arranged on the side portion, located on the first sliding rail, of the rack, and the sliding frame is connected with the rodless cylinder and driven by the rodless cylinder to slide along the first sliding rail.

Preferably, a briquetting lifting cylinder is arranged on the sliding frame, a cylinder body of the briquetting lifting cylinder is arranged on the sliding frame, and the briquetting is fixedly connected to a piston rod of the briquetting lifting cylinder and driven by the briquetting lifting cylinder to move up and down.

Preferably, the fixed clamping seat comprises a fixed seat body and a first rubber block, the fixed seat body is fixedly arranged on the rack, the first rubber block is arranged on the fixed seat body, and the first clamping groove is formed in the first rubber block; the movable clamping seat comprises a movable seat body and a second rubber block, the movable seat body is hinged to the rack and connected with a piston rod of the first push-pull air cylinder, the first push-pull air cylinder pushes and pulls to order the relative fixed seat body to turn over and movably open and close, the second rubber block is installed on the movable seat body, the second clamping groove is formed in the second rubber block, and the pipe fitting is clamped by the first rubber block and the second rubber block and cannot cause extrusion deformation to the wall of the pipe fitting.

Furthermore, the metal plates are covered and installed on the end faces of the first rubber block and the second rubber block, so that the situation that solder splashes on the rubber blocks to damage the rubber blocks during welding can be prevented; meanwhile, the metal plate covered by the end face of the first rubber block is connected with the fixed base, and/or the metal plate covered by the end face of the second rubber block is connected with the movable base, so that the metal plate can be grounded, the welding current loss is reduced, the stability of welding electric arc is facilitated, unnecessary power loss of a welding machine is avoided, and the welding current is prevented from puncturing the pipe wall.

Further, a pipe end positioning device for positioning the positioning height of the pipe on the fixing clamp in the vertical direction is arranged on the side portion of the fixing clamp on the rack so that the end position of the pipe is consistent when the fixing clamp clamps the pipe, the pipe end positioning device comprises a second push-pull air cylinder installed on the rack and a positioning plate connected with the second push-pull air cylinder and pushed and pulled by the second push-pull air cylinder, the second push-pull air cylinder and the positioning plate are installed in a specific mode that a cylinder body of the second push-pull air cylinder is installed on an air cylinder installation seat, the air cylinder installation seat is installed on the rack, a piston rod of the second push-pull air cylinder horizontally extends towards the upper portion of the fixing clamp and is fixedly connected with a seat plate, the positioning plate is installed on the seat plate, a second sliding block is installed on the air cylinder installation seat, the second sliding block is installed on a second sliding rail, and the positioning plate is pushed by the second push-pull air cylinder And (4) placing.

Furthermore, the pipe end positioning device can be integrally installed on the rack in a lifting mode, or the positioning plate is installed on the seat plate in a lifting mode, so that the height of the positioning plate can be adjusted, and the pipe fitting can be positioned at different positioning heights on the fixing clamp.

The utility model discloses following beneficial effect has:

the utility model relates to a fixing device is used in coupling welding, be used for the fixed pipe fitting of centre gripping and be fixed in the pipe joint location the pipe joint and make both centers align, cooperation welding robot uses, can realize by welding robot is automatic with the pipe joint welding in the pipe joint, the going on of weldment work need not to rely on the welding workman, only need the supplementary pipe fitting and the pipe joint of placing of workman, help reducing production cost of labor and improve coupling welding efficiency, ensure the firm steady quality of welding, make things convenient for big welding production in batches, and avoid welding quality to receive the human factor to influence, make welding quality obtain guaranteeing.

Drawings

FIG. 1 is a schematic structural view of a discharge pipe of a powder tanker;

FIG. 2 is an overall view of the fixing device for welding pipe joints according to the present invention;

fig. 3 is a schematic view of the fixing clamp of the fixing device for welding a pipe joint of the present invention in an open state;

fig. 4 is a schematic structural view of a pipe joint pressing device of the fixing device for welding a pipe joint of the present invention;

fig. 5 is a schematic structural view of the pipe end positioning device of the fixing device for welding pipe joints of the present invention.

In the figure: 1. a frame; 2. fixing the clamp; 3. a pipe joint pressing device; 4. a pipe end positioning device; 10. the tube is opened; 11. a first slide rail; 12. a rodless cylinder; 21. fixing the clamping seat; 22. a movable clamping seat; 23. A tube gripping hole; 24. a metal plate; 25. a first push-pull cylinder; 21a, a first clamping groove; 21b, fixing the seat body; 21c, a first glue block; 22a, a second clamping groove; 22b, a movable seat body; 22c, a second glue block; 31. a carriage; 32. briquetting; 33. a briquetting lifting cylinder; 31a, a first slider; 41. a second push-pull cylinder; 42. positioning a plate; 43. a cylinder mounting seat; 44. a seat plate; 45. a second slider; 46. a second slide rail.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the invention.

As shown in figure 2, the utility model relates to a fixing device for pipe joint welding, which comprises a frame 1, a fixing clamp 2 for clamping and fixing the pipe joint and a pipe joint pressing device 3 for pressing and positioning the pipe joint at the end part of the pipe joint are arranged on the frame 1, the fixing clamp 2 comprises a fixing clamping seat 21 fixedly arranged on the frame 1 and a movable clamping seat 22 capable of being turned and movably opened and closed relative to the fixing clamping seat 21, the fixing clamping seat 21 is provided with a first clamping groove 21a, the movable clamping seat 22 is provided with a second clamping groove 22a, the second clamping groove 22a and the first clamping groove 21a form a pipe clamping hole 23 which is matched with the outer wall of the pipe joint and can allow the pipe joint to pass through and tightly clamp and fix the pipe joint when the movable clamping seat 22 and the fixing clamping seat 21 are spliced, the shape and the size of the pipe clamping hole 23 can be adjusted and designed according to the shape and the size of the pipe joint so as to, the rack 1 is provided with a pipe passing opening 10 corresponding to the fixing clamp 2 for the pipe fitting to pass through; the pipe joint pressing device 3 comprises a sliding frame 31 and a pressing block 32, wherein the pressing block 32 is installed on the sliding frame 31 and can move up and down on the sliding frame 31, the sliding frame 31 is installed on the machine frame 1 in a sliding mode and can slide towards the direction of the fixing clamp 2 to move the pressing block 32 to the upper portion of the pipe joint, and the pipe joint is pressed through the pressing block 32.

The pipe fitting clamping device is matched with a welding robot for use, firstly, the movable clamping seat 22 of the fixed clamp 2 is turned and movably opened relative to the fixed clamping seat 21, then, a pipe fitting is manually loaded into the first clamping groove 21a of the fixed clamping seat 21 through the pipe opening 10 on the rack 1, then, the movable clamping seat 22 is driven to be turned and movably closed, the pipe fitting is clamped and fixed through the pipe fitting clamping hole 23 formed by encircling the second clamping groove 22a of the movable clamping seat 22 and the first clamping groove 21a of the fixed clamping seat 21, in the pipe fitting clamping and fixing process, the end part of the pipe fitting extends out of the fixed clamp 2, then, the pipe joint is manually placed on the end part of the pipe fitting and is aligned with the center, the sliding frame 31 of the pipe joint pressing device 3 slides towards the direction of the fixed clamp 2 to move the pressing block 32 to the upper part of the fixed clamp 2, the pressing block 32 descends to press the pipe joint, then, and the automatic, the pipe joint welding device has the advantages that the pipe joint can be automatically welded to a pipe fitting by the welding robot, welding work can be carried out without depending on welding workers, the pipe fitting and the pipe joint can be placed only by the aid of workers, production labor cost is reduced, welding efficiency of the pipe joint is improved, firm welding quality is guaranteed, mass welding production is facilitated, welding quality is prevented from being affected by human factors, and welding quality is guaranteed.

The specific structure of the fixing clamp 2 is shown in fig. 3, the fixing clamping seat 21 includes a fixing seat body 21b and a first rubber block 21c, the fixing seat body 21b is installed and fixed on the frame 1, the first rubber block 21c is installed on the fixing seat body 21b, and the first clamping groove 21a is arranged on the first rubber block 21 c; the movable clamping seat 22 comprises a movable seat body 22b and a second rubber block 22c, the movable seat body 22b is hinged to the frame 1 and connected with a piston rod of the first push-pull air cylinder 25, the first push-pull air cylinder 25 pushes and pulls to drive the relatively fixed seat body 21b to turn and move to open and close, the second rubber block 22c is installed on the movable seat body 22b, the second clamping groove 22a is formed in the second rubber block 22c, and the pipe is clamped by the first rubber block 21c and the second rubber block 22c and cannot cause extrusion deformation to the wall of the pipe. In order to prevent the solder from splashing on the rubber block to damage the rubber block during welding, the end surfaces of the first rubber block 21c and the second rubber block 22c are covered and installed with the metal plate 24, and the splashed solder can directly fall on the metal plate 24 to avoid contact with the rubber block. Meanwhile, the metal plate 24 covered by the end face of the first rubber block 21c is connected with the fixed seat body 21b, and/or the metal plate 24 covered by the end face of the second rubber block 22c is connected with the movable seat body 22b, so that the metal plate 24 can be grounded, the welding current loss is reduced, the stability of welding electric arc is facilitated, the power loss of an unnecessary welding machine is avoided, and the welding current is prevented from puncturing the pipe wall.

The concrete installation structure of the sliding frame 31 and the pressing block 32 of the pipe joint pressing device 3 is shown in fig. 4, a first sliding block 31a is installed on the sliding frame 31, a first sliding rail 11 is installed on the rack 1, the first sliding block 31a is installed on the first sliding rail 11, a rodless cylinder 12 is installed on the rack 1 and located on the side portion of the first sliding rail 11, and the sliding frame 31 is connected with the rodless cylinder 12 and driven by the rodless cylinder 12 to slide along the first sliding rail 11; the sliding frame 31 is provided with a briquetting lifting cylinder 33, the cylinder body of the briquetting lifting cylinder 33 is arranged on the sliding frame 31, and the briquetting 32 is fixedly connected to the piston rod of the briquetting lifting cylinder 33 and driven by the briquetting lifting cylinder 33 to move up and down. When the pipe fitting is installed, the movable base body 22b is pulled by the first push-pull air cylinder 25 to drive the second rubber block 22c to turn over and open, then the pipe fitting is installed on the first clamping groove 21a of the first rubber block 21c, the pipe end extends out of the first clamping groove 21a, the first push-pull air cylinder 25 resets and pushes the movable base body 22b to drive the second rubber block 22c to turn over and close so as to clamp the pipe fitting in the pipe fitting clamping hole 23, then the pipe fitting joint is aligned on the pipe end of the pipe fitting, the rodless air cylinder 12 acts to drive the sliding frame 31 to slide, the sliding frame 31 drives the press block 32 to move to the upper side of the pipe fitting, and then the press block lifting air cylinder 33 acts to enable the press block 32 to descend and press on the pipe fitting so as to.

As shown in fig. 2 and 5, a pipe end positioning device 4 for positioning the positioning height of the pipe on the fixing jig 2 in the vertical direction is installed on the frame 1 at the side of the fixing jig 2 so that the pipe end positions are consistent when the fixing jig 2 clamps the pipe and repeatedly positions the pipe in mass production. The pipe end positioning device 4 comprises a second push-pull cylinder 41 mounted on the frame 1 and a positioning plate 42 connected with the second push-pull cylinder 41 and pushed and pulled by the second push-pull cylinder 41, wherein the second push-pull cylinder 41 and the positioning plate 42 are specifically mounted in such a manner that a cylinder body of the second push-pull cylinder 41 is mounted on a cylinder mounting seat 43, the cylinder mounting seat 43 is mounted on the frame 1, a piston rod of the second push-pull cylinder 41 horizontally extends towards the upper part of the fixing clamp 2 and is fixedly connected with a seat plate 44, the positioning plate 42 is mounted on the seat plate 44, a second sliding block 45 is mounted on the seat plate 44, a second sliding rail 46 is mounted on the cylinder mounting seat 43, the second sliding block 45 is mounted on the second sliding rail 46, and the positioning plate 42 is pushed by the second push-pull cylinder 41 to slide along the second sliding rail 46 to the. Before the pipe fitting is arranged in the first clamping groove 21a, the pipe fitting end position is located when the second push-pull cylinder 41 moves to enable the positioning plate 42 to move to the fixing clamp 2 to clamp the pipe fitting, then the pipe fitting is arranged to enable the pipe end of the pipe fitting to be tightly abutted to the lower side of the positioning plate 42, the pipe fitting end position can be accurately determined when the pipe fitting is arranged, the fact that the installation position of the pipe fitting is consistent every time when batch production is repeatedly positioned is ensured, then the first push-pull cylinder 25 resets and pushes the movable seat body 22b to drive the second rubber block 22c to turn over and close to clamp the pipe fitting in the pipe fitting clamping hole 23, the second push-pull cylinder 41 resets again to pull the positioning plate 42 to reset to enable the positioning plate 42 to move out from the pipe end, and then the pipe fitting.

In addition, the pipe end positioning device 4 can be integrally installed on the frame 1 in a lifting manner, or the positioning plate 42 can be installed on the seat plate 44 in a lifting manner, for example, a screw rod lifting adjusting structure is adopted, so that the height of the positioning plate 42 can be adjusted, and different positioning heights of the pipe fittings on the fixing clamp 2 can be positioned.

Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.

Claims

1. The utility model provides a fixing device is used in coupling welding, includes frame (1), its characterized in that: the frame (1) is provided with a fixing clamp (2) for clamping and fixing the pipe fitting and a pipe joint pressing device (3) for tightly pressing and positioning the pipe joint at the end part of the pipe fitting, the fixed clamp (2) comprises a fixed clamping seat (21) fixedly arranged on the frame (1) and a movable clamping seat (22) which can be turned over and opened and closed movably relative to the fixed clamping seat (21), the fixed clamping seat (21) is provided with a first clamping groove (21a), the movable clamping seat (22) is provided with a second clamping groove (22a), when the movable clamping seat (22) and the fixed clamping seat (21) are spliced, the second clamping groove (22a) and the first clamping groove (21a) form a pipe clamping hole (23) which is matched with the outer wall of the pipe and can allow the pipe to pass through and tightly clamp and fix the pipe, a pipe passing opening (10) for a pipe fitting to pass through is formed in the rack (1) corresponding to the fixing clamp (2);

the pipe joint pressing device (3) comprises a sliding frame (31) and a pressing block (32), the pressing block (32) is installed on the sliding frame (31) and can move up and down on the sliding frame (31), the sliding frame (31) is installed on the rack (1) in a sliding connection mode and can slide towards the direction of the fixing clamp (2) to move the pressing block (32) to the upper portion of the pipe joint, and the pipe joint is pressed by the pressing block (32).

2. The pipe joint welding fixture as claimed in claim 1, wherein: the sliding frame is characterized in that a first sliding block (31a) is arranged on the sliding frame (31), a first sliding rail (11) is arranged on the rack (1), the first sliding block (31a) is arranged on the first sliding rail (11), a rodless cylinder (12) is arranged on the side portion, located on the first sliding rail (11), of the rack (1), and the sliding frame (31) is connected with the rodless cylinder (12) and driven by the rodless cylinder (12) to slide along the first sliding rail (11).

3. The pipe joint welding fixture as claimed in claim 1, wherein: the sliding frame (31) is provided with a pressing block lifting cylinder (33), a cylinder body of the pressing block lifting cylinder (33) is installed on the sliding frame (31), and a pressing block (32) is fixedly connected to a piston rod of the pressing block lifting cylinder (33) and driven by the pressing block lifting cylinder (33) to move up and down.

4. The pipe joint welding fixture as claimed in claim 1, wherein: the fixed clamping seat (21) comprises a fixed seat body (21b) and a first rubber block (21c), the fixed seat body (21b) is fixedly arranged on the rack (1), the first rubber block (21c) is arranged on the fixed seat body (21b), and the first clamping groove (21a) is formed in the first rubber block (21 c); the movable clamping seat (22) comprises a movable seat body (22b) and a second rubber block (22c), the movable seat body (22b) is hinged to the rack (1) and connected with a piston rod of a first push-pull air cylinder (25), the first push-pull air cylinder (25) pushes and pulls to drive the fixed seat body (21b) to turn and movably open and close, the second rubber block (22c) is installed on the movable seat body (22b), and a second clamping groove (22a) is formed in the second rubber block (22 c).

5. The pipe joint welding fixture as claimed in claim 4, wherein: and the end surfaces of the first rubber block (21c) and the second rubber block (22c) are covered and installed with a metal plate (24).

6. The pipe joint welding fixture as claimed in claim 5, wherein: the metal plate (24) covered by the end face of the first rubber block (21c) is connected with the fixed seat body (21b), and/or the metal plate (24) covered by the end face of the second rubber block (22c) is connected with the movable seat body (22 b).

7. The pipe joint welding fixture as claimed in claim 1, wherein: and a pipe end positioning device (4) which is used for positioning the positioning height of the pipe on the fixing clamp (2) in the vertical direction so as to ensure that the end positions of the pipes are consistent when the fixing clamp (2) clamps the pipes is arranged on the side part of the rack (1) positioned on the fixing clamp (2).

8. The pipe joint welding fixture as claimed in claim 7, wherein: the pipe end positioning device (4) comprises a second push-pull air cylinder (41) arranged on the rack (1) and a positioning plate (42) which is connected with the second push-pull air cylinder (41) and is pushed and pulled by the second push-pull air cylinder (41).

9. The pipe joint welding fixture as claimed in claim 8, wherein: the cylinder body of the second push-pull cylinder (41) is installed on a cylinder installation seat (43), the cylinder installation seat (43) is installed on the rack (1), a piston rod of the second push-pull cylinder (41) horizontally extends towards the upper portion of the fixing clamp (2) and is fixedly connected with a seat plate (44), the positioning plate (42) is installed on the seat plate (44), a second sliding block (45) is installed on the seat plate (44), a second sliding rail (46) is installed on the cylinder installation seat (43), the second sliding block (45) is installed on the second sliding rail (46), and the positioning plate (42) is pushed by the second push-pull cylinder (41) to move along the second sliding rail (46) in a sliding mode to the position where the end portion of the pipe fitting is located when the fixing clamp (2) clamps the pipe fitting.

10. The pipe joint welding fixture according to claim 8 or 9, wherein: the positioning plate (42) can be lifted to adjust the height.