CN210387900U - Tool for reducing welding deformation of annular weldment in welding process - Google Patents
Tool for reducing welding deformation of annular weldment in welding process Download PDFInfo
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- CN210387900U CN210387900U CN201920443323.6U CN201920443323U CN210387900U CN 210387900 U CN210387900 U CN 210387900U CN 201920443323 U CN201920443323 U CN 201920443323U CN 210387900 U CN210387900 U CN 210387900U
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Abstract
The utility model discloses a tool for reducing welding deformation of an annular weldment in the welding process, which comprises a base, a guide pillar, a pull claw, a top cover, a cooling base plate, a cooling pressing plate and a hydraulic jack; a guide post is tightly connected in a guide hole of the base through a nut; a pull claw is tightly connected in the long slot hole of the base through a nut; a hydraulic jack is placed in a central hole of the base, and the hydraulic jack is limited downwards; the top cover is nested on the guide post and is placed above the hydraulic jack in a floating manner; the cooling base plate is connected with the top cover through a bolt; the annular weldment is flatly placed above the cooling base plate in a floating manner; the cooling pressure plate is flatly placed above the annular weldment in a floating mode; the top end of the pull claw hooks the cooling pressing plate. The hydraulic jack is pressed upwards, the pull claw presses and fixes the annular welding piece, and the deformation of the annular welding piece in the welding process and after the welding process is limited by applying pressure; the heat generated in the welding process is rapidly dissipated by utilizing the cooling base plate and the pressing plate for clamping the annular weldment, so that the deformation of the annular weldment caused by waste heat is reduced.
Description
Technical Field
The utility model discloses the welding technology field is applied to the frock, specifically says so a frock that produces warpage among the reduction annular weldment single face welding process.
Background
In the welding process, the upper surface of the annular weldment is rapidly cooled after being locally heated and melted by the electric arc, and the welding residual stress is unevenly distributed in the thickness direction of the weldment. When the workpiece is in a free state, post-welding stress is released, causing the workpiece to warp and deform. The residual heat after welding continuously heats the workpiece, and the deformation of the weldment is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a exert pressure to the frock through pressure jack to reach frock and work piece fastening connection, form a rigidity wholly. And the heat in the welding process is quickly dissipated through the cooling plate, so that the deformation of the weldment is controlled.
In addition, the tool is simple in structure, and manual welding is performed at a favorable position by a welder.
In order to realize the purpose of complaining, the utility model discloses a technical scheme is:
a tool for reducing welding deformation of an annular weldment in a welding process comprises a base, a guide pillar, a pull claw, a top cover, a cooling base plate, a cooling pressing plate and a hydraulic jack; a guide post is tightly connected in a guide hole of the base through a nut; a pull claw is tightly connected in the long slot hole of the base through a nut; a hydraulic jack is placed in a central hole of the base, and the hydraulic jack is limited downwards; the top cover is nested on the guide post and is placed above the hydraulic jack in a floating manner; the cooling base plate is connected with the top cover through a bolt; the annular weldment is flatly placed above the cooling base plate in a floating manner; the cooling pressure plate is flatly placed above the annular weldment in a floating mode; the top end of the pull claw hooks the cooling pressing plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. and a plurality of pressing points are adopted, so that the pressure is more uniformly distributed on the workpiece.
2. And a 50T hydraulic jack is adopted, so that higher pressure is obtained, and welding deformation can be better resisted.
3. The maximum size of the outer contour of the tool adopting an inner jacking and outer pulling mode is 620mm, while the maximum size of the outer contour of a traditional bolt press block is 900 mm. The station area is saved and the welding operation of staff is facilitated.
4. Compared with a method for pressing a block by fastening a bolt, the hydraulic pressing mode is simpler and faster.
5. The cooling plate can dissipate heat more quickly and reduce deformation. Meanwhile, the welding piece can be rapidly cooled to room temperature, and the inter-sequence turnover efficiency of the welding piece is improved.
6. The position of the pulling claw can be adjusted at will within the range of phi 300-phi 600 to adapt to various annular weldments with different specifications. The cooling base plate is assembled with the top cover bolt, and the cooling base plate with different specifications can be replaced within the range of phi 300-phi 600 at will.
Drawings
Fig. 1 is an assembly diagram of the present invention.
Fig. 2 is a schematic view of a base of the utility model.
Fig. 3 is a schematic view of the top cover of the utility model.
Fig. 4 is a schematic view of the guide post of the utility model.
Fig. 5 is a schematic view of the pulling claw of the utility model.
Fig. 6 is a schematic view of the cooling mat of the present invention.
Fig. 7 is a schematic view of the cooling platen of the present invention.
Detailed Description
The invention will be described in further detail with reference to the accompanying figures 1-7 and the reference numerals. A tool for reducing welding deformation of an annular weldment in a welding process comprises a base 1, a guide pillar 2, a pull claw 3, a top cover 4, a cooling base plate 5, a cooling pressure plate 6 and a hydraulic jack 7;
the guide post 2 is tightly connected in the guide hole 8 of the base 1 through a nut; a pull claw 3 is fixedly connected in the long slotted hole 9 of the base 1 through a nut; a hydraulic jack 7 is placed in a central hole of the base 1, and the hydraulic jack 7 is subjected to lower limit positioning; the top cover 4 is nested on the guide post 2 and is placed above the hydraulic jack 7 in a floating manner; the cooling base plate 5 is connected with the top cover 4 through bolts; the annular weldment is flatly placed above the cooling base plate 5 in a floating manner; the cooling pressure plate 6 is flatly placed above the annular weldment in a floating mode; the top end of the pulling claw 3 hooks the cooling pressing plate 6.
Six long slotted holes 9 of the base 1 are provided, and the pull claw base can freely move in the long slotted holes and is fastened at any position.
Be equipped with six support arms on the top cap 4, be equipped with the screw hole of a plurality of installation cooling backing plates on every support arm, realize the cooling backing plate of different specifications of quick replacement.
The cooling backing plate adopts a ring with the thickness of more than 30 mm.
The cooling pressure plate adopts a ring with the thickness of more than 10 mm.
A shoulder is processed on the cooling base plate to realize the central positioning water cooling ring.
The cooling backing plate and the cooling pressure plate clamp the water cooling ring in the middle, and welding heat is rapidly dissipated during welding.
The base and the top cover of the tool for reducing welding deformation of the annular weldment in the welding process are welded into a round platform structure by adopting a medium-thickness stainless steel plate, and tempering is performed after welding to remove stress. And finely machining the guide hole, the lower positioning limit and the upper and lower surfaces of the jack, and drilling and tapping a threaded hole.
The pull claw is formed by linear cutting of a stainless steel plate, and M18 threads are lathed at the root part.
The guide post is formed by finish turning stainless steel round steel, and the surface roughness is 1.6.
The cooling base plate and the cooling pressure plate are formed by linear cutting, and the upper surface, the lower surface, the positioning table and the mounting hole are machined.
The pressure source adopts a 50T portable hydraulic jack.
The hydraulic jack exerts pressure on the top cover from bottom to top in the center of the tool, six pulling claws evenly distributed in the circumferential direction of the tool are clamped on the upper surface of the weldment, and when the jack reaches a preset stroke, the annular weldment is pressed on the upper surface of the top cover, so that the weldment and the tool form a rigid whole.
The base and the top cover are guided by the guide post, so that the top cover does not generate radial play when going upwards.
The base is connected with the pulling claw by a bolt, and can be positioned and fastened within the range of phi 300-phi 600 at will.
The top cover is connected with the cooling base plate through bolts, and the cooling base plates with different specifications can be freely disassembled and replaced according to the size of a workpiece.
The cooling base plate and the cooling pressure plate clamp the workpiece, so that manual welding operation is facilitated, and the workpiece can be cooled rapidly.
The portable 50T hydraulic jack can be quickly positioned and installed in a tooling center. The top cover and the annular weldment fixed on the top cover are pushed to move upwards by pressurizing the jack. Six pulling claws are clamped on a pressing plate on the upper surface of the water cooling ring. The jack reaches the predicted stroke, and the water-cooling ring is completely compressed on the top cover, so that the weldment and the tool form a rigid whole.
The base and the top cover are both of stainless steel welding structures, stress is removed after welding, and the upper surface and the guide hole are subjected to finish machining. The fit tolerance of the guide hole and the guide post is H7/H6, so that the top cover can be ensured to move upwards without radial play.
The center of the base and the top cover is used as the lower limit of the jack positioning.
Example (b): according to the specification of a workpiece, the position of the pull claw 3 on the base is adjusted in advance, and the nut is fastened. The hydraulic jack 7 is arranged in the center of the base. The top cover 4 is nested in the guide post 2, and the top cover 4 is manually slid up and down to judge whether interference occurs. The cooling plate 5 is bolted to the top cover 4 and the annular weldment lies flat on the cooling plate 5 and is centered with a shoulder. The cooling pressing plate 6 is flatly placed on the workpiece, the excircle is aligned, and the welding bead is avoided.
The hydraulic jack 7 applies pressure manually to drive the top cover to move upwards to the position limiting of the pulling claw. And observing the excircle of the weldment and the cooling base plate, and keeping the pressure after tightly pasting.
After welding, the annular weldment is cooled to room temperature, the jack is decompressed, the cooling pressing plate is removed, and the workpiece can be taken away.
Claims (7)
1. The utility model provides a reduce annular weldment welding deformation's frock in welding process which characterized in that:
the device comprises a base, a guide pillar, a pull claw, a top cover, a cooling base plate, a cooling pressing plate and a hydraulic jack;
a guide post is tightly connected in a guide hole of the base through a nut;
a pull claw is tightly connected in the long slot hole of the base through a nut;
a hydraulic jack is placed in a central hole of the base, and the hydraulic jack is limited downwards;
the top cover is nested on the guide post and is placed above the hydraulic jack in a floating manner;
the cooling base plate is connected with the top cover through a bolt;
the annular weldment is flatly placed above the cooling base plate in a floating manner;
the cooling pressure plate is flatly placed above the annular weldment in a floating mode;
the top end of the pull claw hooks the cooling pressing plate.
2. The tool for reducing welding deformation of the annular weldment in the welding process according to claim 1, wherein the tool comprises:
six long slotted holes are formed in the base, and the pull claw can freely move in the long slotted holes of the base and can be fastened at any position.
3. The tool for reducing welding deformation of the annular weldment in the welding process according to claim 1, wherein the tool comprises:
be equipped with six support arms on the top cap, be equipped with the screw hole of a plurality of installation cooling backing plates on every support arm, realize the cooling backing plate of different specifications of quick replacement.
4. The tool for reducing welding deformation of the annular weldment in the welding process according to claim 1, wherein the tool comprises:
the cooling backing plate adopts a ring with the thickness of more than 30 mm.
5. The tool for reducing welding deformation of the annular weldment in the welding process according to claim 1, wherein the tool comprises:
the cooling pressure plate adopts a ring with the thickness of more than 10 mm.
6. The tool for reducing welding deformation of the annular weldment in the welding process according to claim 1, wherein the tool comprises:
a shoulder is processed on the cooling base plate to realize the central positioning water cooling ring.
7. The tool for reducing welding deformation of the annular weldment in the welding process according to claim 1, wherein the tool comprises:
the cooling backing plate and the cooling pressure plate clamp the water cooling ring in the middle, and welding heat is rapidly dissipated during welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920443323.6U CN210387900U (en) | 2019-04-03 | 2019-04-03 | Tool for reducing welding deformation of annular weldment in welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920443323.6U CN210387900U (en) | 2019-04-03 | 2019-04-03 | Tool for reducing welding deformation of annular weldment in welding process |
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| Publication Number | Publication Date |
|---|---|
| CN210387900U true CN210387900U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920443323.6U Active CN210387900U (en) | 2019-04-03 | 2019-04-03 | Tool for reducing welding deformation of annular weldment in welding process |
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| Country | Link |
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| CN (1) | CN210387900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025096A (en) * | 2020-07-24 | 2020-12-04 | 沈阳富创精密设备有限公司 | Stainless steel water-cooling base ring and welding process method thereof |
| CN112846617A (en) * | 2021-01-05 | 2021-05-28 | 北京动力机械研究所 | Multi-section annular pipeline welding deformation control tool |
-
2019
- 2019-04-03 CN CN201920443323.6U patent/CN210387900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025096A (en) * | 2020-07-24 | 2020-12-04 | 沈阳富创精密设备有限公司 | Stainless steel water-cooling base ring and welding process method thereof |
| CN112846617A (en) * | 2021-01-05 | 2021-05-28 | 北京动力机械研究所 | Multi-section annular pipeline welding deformation control tool |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" | ||
| CP03 | "change of name, title or address" |
Address after: No.18a-1, Feiyun Road, Hunnan District, Shenyang City, Liaoning Province Patentee after: Shenyang fuchuang precision equipment Co.,Ltd. Address before: 110168 no.18a-1, Feiyun Road, Hunnan District, Shenyang City, Liaoning Province Patentee before: Shenyang Fortune Precision Equipment Co.,Ltd. |