CN214212787U - Quick clamping device for straight pipe butt welding - Google Patents
Quick clamping device for straight pipe butt welding Download PDFInfo
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- CN214212787U CN214212787U CN202022417843.5U CN202022417843U CN214212787U CN 214212787 U CN214212787 U CN 214212787U CN 202022417843 U CN202022417843 U CN 202022417843U CN 214212787 U CN214212787 U CN 214212787U
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Abstract
The rapid clamping device for straight pipe butt welding comprises a bottom plate, a movable upper clamping jaw, a positioning bolt, a traction pull rod, a pressure spring, a traction hinge, a pressure rod, a lower clamping jaw and a workpiece; the movable upper clamping jaw is fixedly connected with the bottom plate through a positioning bolt; the movable upper clamping jaw is connected with the traction pull rod through a pin shaft; the traction pull rod is connected with a pressure spring which enables the upper clamping jaw and the lower clamping jaw to keep a clamping state; the traction pull rod, the traction hinge and the pressure rod are connected through a pin; the lower clamping jaw is welded and connected to the bottommost part of the bottom plate; when the clamping is in work, a workpiece is clamped and connected between the movable upper clamping jaw and the lower clamping jaw; the workpiece is a straight pipe or a square pipe which needs to be butt-welded. The advantages are that: the device has the characteristics of simplicity in disassembly and assembly, convenience in maintenance and carrying, is suitable for welding and butt joint of straight pipes or square pipes with the same diameter in batches, has the characteristics of simplicity in operation, safety, reliability and high working efficiency, guarantees the concentricity of the pipe fittings and guarantees the welding quality.
Description
Technical Field
The utility model relates to a welding auxiliary assembly technical field especially relates to a quick clamping device that is arranged in the fixed straight tube butt welding of welding process clamping of metal of the same external diameter, non-metallic pipe fitting.
Background
In the prior art, the butt joint of straight pipes in the welding industry generally adopts manual butt joint, and the defects of low concentricity, inconvenient adjustment, low clamping speed and the like are often caused in the butt joint process. In straight pipe butt joint operation in the mine machining industry, particularly butt joint of water and gas pipelines, manual butt joint is generally adopted, the butt joint concentricity is not high, the operation efficiency is low, the butt joint quality is reduced, the work progress is prolonged, and meanwhile, the deviation of the concentricity is large, so that the installation of the pipelines is influenced. Under current maintenance mode, when utilizing the bench vice clamping, can ensure the concentricity of butt joint, nevertheless the clamping is efficient, does not have sufficient space to weld after the clamping, and need loosen the bench vice and just can adjust the work piece when the clamping is accomplished the adjustment. In the operation of processing the straight pipes in batches, a straight pipe butt joint quick clamping device which can ensure the yield of workpieces and increase the working efficiency is further needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide one kind can promote the concentricity of straight tube butt joint, improve work efficiency, reduce workman's technical requirement, be convenient for the straight tube butt welding's of work piece adjustment quick clamping device in the welding process.
The utility model discloses a solve the technical scheme that above-mentioned problem provided and be: a rapid clamping device for straight pipe butt welding comprises a bottom plate, a movable upper clamping jaw, a positioning bolt, a traction pull rod, a pressure spring, a traction hinge, a pressure rod, a lower clamping jaw and a workpiece; the movable upper clamping jaw is fixedly connected with the bottom plate through a positioning bolt; the movable upper clamping jaw is connected with the traction pull rod through a pin shaft; the traction pull rod is connected with a pressure spring which enables the upper clamping jaw and the lower clamping jaw to keep a clamping state; the traction pull rod, the traction hinge and the pressure rod are connected through a pin; the lower clamping jaw is welded and connected to the bottommost part of the bottom plate; when the clamping is in work, a workpiece is clamped and connected between the movable upper clamping jaw and the lower clamping jaw; the workpiece is a square pipe or a straight pipe which needs to be butt-welded; the middle part of the upper part of the bottom plate is provided with an opening which is matched with the moving space of the pressure lever; positioning bolt holes formed in two sides of the middle part of the movable upper clamping jaw are vertical long holes with adjustable positioning positions; the middle parts of the bottoms of the welded and connected bottom plate, the movable upper clamping jaw and the lower clamping jaw are provided with arched channels which can ensure enough space during welding operation; an upper connecting plate and a spring base for a pressure spring are welded below a pin connecting plate for fixedly connecting the bottom plate with the traction hinge; the upper connecting plate for the pressure spring is provided with a through hole which is movably connected and matched with the traction pull rod; the upper, lower, left and right corners of the back of the bottom plate are welded with 4 vertically arranged angle steels for fixedly connecting the bottom plate; the middle part of the upper part of the back of the bottom plate is welded with a connecting plate fixedly connected with a compression bar for fixing a pin at the top end of the compression bar; a pin connecting plate for fixedly connecting the traction hinge and the bottom plate is welded in the middle of the upper front part of the bottom plate in parallel; the pin connecting plate is welded with two support angle steels for fixing the pin up and down by the traction hinges respectively in the vertical direction; the outward arrangement of the pressure lever is an outward pushing type which can ensure that enough space can be reserved after the pipe fitting is clamped and during the welding operation.
Preferably: the bottom plate, the movable upper clamping jaw and the lower clamping jaw are all made of common structural steel; the traction pull rod and the traction hinge are made of high-strength steel.
Preferably: the working pressure of the pressure spring is 1000N/m; the lever ratio of the pressure lever is 10: 1.
Preferably: the positioning bolt is added with a buffer gasket, the pin is fixed by an open bayonet lock, and the buffer gasket is added in the middle.
The utility model has the advantages that: the device improves the concentricity of straight pipe butt welding, reduces the labor intensity of workers, reduces the technical requirements on the workers, improves the working efficiency of the workers, and is convenient for adjusting workpieces in the welding process. The embodiment of the device is tried on the mine maintenance site, and in the maintenance process of the heating pipeline, the good practicability is shown in the operation of welding the galvanized pipe joint of the heating pipeline, the concentricity and the verticality of the galvanized pipe after butt joint are ensured, and the galvanized pipe is easier to align in the installation process. The condition that the quality of straight pipe products is influenced due to insufficient verticality can not be generated, and the straight pipe device has the characteristics of simplicity in disassembly and assembly and convenience in maintenance and carrying.
Drawings
Fig. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a schematic usage diagram of an embodiment of the present invention.
In the drawings: 1. a base plate; 2. a movable upper jaw; 3. positioning the bolt; 4. a traction pull rod; 5. a pressure spring; 6. a traction hinge; 7. a pressure lever; 8. a lower jaw; 9. and (5) a workpiece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. A rapid clamping device for straight pipe butt welding is shown in figures 1-3: the movable clamping jaw type clamping device comprises a bottom plate 1, a movable upper clamping jaw 2, a positioning bolt 3, a traction pull rod 4, a pressure spring 5, a traction hinge 6, a pressure rod 7, a lower clamping jaw 8 and a workpiece 9. The movable upper clamping jaw 2 is fixedly connected with the bottom plate 1 through a positioning bolt 3; the movable upper clamping jaw 2 is connected with the traction pull rod 4 through a pin shaft; the traction pull rod 4 is connected with a pressure spring 5 which enables the upper clamping jaw and the lower clamping jaw to keep a clamping state; the traction pull rod 4, the traction hinge 6 and the compression bar 7 are connected through a pin; the lower clamping jaw 8 is welded and connected to the bottommost part of the bottom plate 1; when the clamping is in work, a workpiece 9 is clamped and connected between the movable upper clamping jaw 2 and the lower clamping jaw 8; the workpiece 9 is a square pipe or a straight pipe which needs to be butt-welded; the middle part of the upper part of the bottom plate 1 is provided with an opening which is matched with the moving space of the pressure lever 7; positioning bolts 3 are arranged at two sides of the middle part of the movable upper clamping jaw 2, and are vertical long holes with adjustable positioning positions; the middle parts of the bottoms of the bottom plate 1, the movable upper clamping jaw 2 and the lower clamping jaw 8 after being welded and connected are provided with arched door-shaped channels which can ensure enough space to be reserved during welding operation; an upper connecting plate and a spring base for a pressure spring 5 are welded below a pin connecting plate for fixedly connecting the bottom plate 1 with a traction hinge 6; the upper connecting plate for the pressure spring 5 is provided with a through hole which is movably connected and matched with the traction pull rod 4; the upper, lower, left and right corners of the back surface of the bottom plate 1 are welded with 4 vertically arranged angle steels for fixedly connecting the bottom plate; the middle part of the upper part of the back of the bottom plate 1 is welded with a connecting plate for fixing a pin at the top end of a fixedly connecting pressure rod 7; a pin connecting plate for fixedly connecting the traction hinge 6 with the bottom plate 1 is welded in the middle of the upper front part of the bottom plate 1 in parallel; two support angle steels for fixing the pin up and down are respectively welded on the pin connecting plate in the vertical direction of the pin connecting plate; the pressing rod 7 is outwards arranged to be an outwards pushing type which can ensure that enough space can be reserved for the pipe fitting after clamping and during welding operation. The bottom plate 1, the movable upper clamping jaw 2 and the lower clamping jaw 8 are all made of common structural steel; the traction pull rod 4, the traction hinge 6 and the compression bar 7 are made of high-strength steel. The working pressure of the pressure spring 5 is 1000N/m; the lever ratio of the pressure lever 7 is 10: 1. A buffer gasket is added on the positioning bolt 3, the pin is fixed by an open bayonet lock, and the buffer gasket is added in the middle. The bottom plate 1, the upper clamping jaw and the lower clamping jaw are made of Q235 iron plates, stress parts such as a traction pull rod, a traction hinge and a pressure rod are made of high-strength steel Q460, a pressure spring is a spring with the pressure of 1000N/m, and a positioning bolt is 10.8-grade. The clamp pressing rod is of an outward pushing type, the pressing rod is outward after the pipe fitting is clamped, and enough space can be reserved during welding operation. The base needs to be fixed in order to ensure the safety in the using process. The device is suitable for butt joint of 10mm-60mm square pipes or straight pipes.
The utility model discloses a theory of operation is: the movable upper clamping jaw 2 is fixedly connected to the bottom plate 1 through a positioning bolt 3, the traction pull rod 4, the traction hinge 6 and the pressure rod 7 are connected through a pin, and the clamping state of the movable upper clamping jaw 2 and the lower clamping jaw 8 to a workpiece 9 is kept by a pressure spring 5 on the traction pull rod 4; loosening the nut of the positioning bolt 3, lifting the pressure rod 7, driving the traction pull rod 4 to move upwards by the traction hinge 6, driving the movable upper clamping jaw 2 to move upwards by the reset of the compression spring, clamping the workpiece 9 when the movable upper clamping jaw 2 and the lower clamping jaw 8 are in a separated state, performing welding operation after the positioning bolt 3 is locked, and repeating the actions after the welding is completed to perform the operation of the next workpiece. The device is suitable for butt joint of 10mm-60mm square pipes or straight pipes. A 1000N/m spring is used as a pressure spring to provide enough force to ensure the clamping state of the workpiece 9; the compression bar 7 uses a 10:1 lever to reduce the compression bar force and reduce the operation difficulty of the device. The lower clamping jaw 8 and the movable upper clamping jaw 2 both use common structural steel as manufacturing raw materials; the device is connected by pins, is simple to assemble and disassemble, convenient to maintain and carry, simple to operate, safe and reliable, high in working efficiency, good in pipe concentricity and high in welding quality.
Claims (4)
1. The utility model provides a quick clamping device of straight tube butt welding, includes work piece (9), its characterized in that: the device also comprises a bottom plate (1), a movable upper clamping jaw (2), a positioning bolt (3), a traction pull rod (4), a pressure spring (5), a traction hinge (6), a pressure rod (7) and a lower clamping jaw (8); the movable upper clamping jaw (2) is fixedly connected with the bottom plate (1) through a positioning bolt (3); the movable upper clamping jaw (2) is connected with the traction pull rod (4) through a pin shaft; the traction pull rod (4) is connected with a pressure spring (5) which enables the upper clamping jaw and the lower clamping jaw to keep a clamping state; the traction pull rod (4), the traction hinge (6) and the compression bar (7) are connected through a pin; the lower clamping jaw (8) is welded and connected to the bottommost part of the bottom plate (1); when in clamping work, a workpiece (9) is clamped and connected between the movable upper clamping jaw (2) and the lower clamping jaw (8); the workpiece (9) is a square pipe or a straight pipe which needs to be butt-welded; the middle part of the upper part of the bottom plate (1) is provided with an opening which is matched with the moving space of the pressure lever (7); positioning bolt (3) holes arranged at two sides of the middle part of the movable upper clamping jaw (2) are vertical long holes with adjustable positioning positions; the middle parts of the bottoms of the welded and connected bottom plate (1), the movable upper clamping jaw (2) and the lower clamping jaw (8) are provided with arched door-shaped channels which can ensure enough space to be reserved during welding operation; an upper connecting plate and a spring base for a pressure spring (5) are welded below a pin connecting plate for fixedly connecting the bottom plate (1) with the traction hinge (6); the upper connecting plate for the pressure spring (5) is provided with a through hole which is movably connected and matched with the traction pull rod (4); the upper, lower, left and right corners of the back of the bottom plate (1) are welded with 4 vertically arranged angle steels for fixedly connecting the bottom plate; the middle part of the upper part of the back of the bottom plate (1) is welded with a connecting plate for fixing a pin at the top end of a fixedly connecting pressure lever (7); a pin connecting plate for fixedly connecting the traction hinge (6) and the bottom plate (1) is welded in the middle of the upper front part of the bottom plate (1) in parallel; two traction hinges (6) are respectively welded on the pin connecting plate in the vertical direction to vertically fix support angle steel for the pin; the pressing rod (7) is outwards arranged to be an outwards pushing type which can ensure that enough space can be reserved after the pipe fitting is clamped and during welding operation.
2. The rapid clamping device for butt welding of the straight pipes according to claim 1, which is characterized in that: the bottom plate (1), the movable upper clamping jaw (2) and the lower clamping jaw (8) are all made of common structural steel; the traction pull rod (4), the traction hinge (6) and the compression bar (7) are made of high-strength steel.
3. The rapid clamping device for butt welding of the straight pipes according to claim 1, which is characterized in that: the working pressure of the pressure spring (5) is 1000N/m; the lever ratio of the pressure lever (7) is 10: 1.
4. The rapid clamping device for butt welding of the straight pipes according to claim 1, which is characterized in that: a buffer gasket is added on the positioning bolt (3), the pin is fixed by an open bayonet lock, and the buffer gasket is added in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022417843.5U CN214212787U (en) | 2020-10-27 | 2020-10-27 | Quick clamping device for straight pipe butt welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022417843.5U CN214212787U (en) | 2020-10-27 | 2020-10-27 | Quick clamping device for straight pipe butt welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214212787U true CN214212787U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022417843.5U Active CN214212787U (en) | 2020-10-27 | 2020-10-27 | Quick clamping device for straight pipe butt welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214212787U (en) |
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2020
- 2020-10-27 CN CN202022417843.5U patent/CN214212787U/en active Active
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