CN115922188A - Synchronous tension clamping device for circular seam welding - Google Patents
Synchronous tension clamping device for circular seam welding Download PDFInfo
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- CN115922188A CN115922188A CN202211419612.5A CN202211419612A CN115922188A CN 115922188 A CN115922188 A CN 115922188A CN 202211419612 A CN202211419612 A CN 202211419612A CN 115922188 A CN115922188 A CN 115922188A
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Abstract
The invention relates to the technical field of circular seam welding, and provides a tension synchronous clamping device for circular seam welding, which comprises an inner supporting clamp and an outer supporting clamp, wherein the inner supporting clamp is used for supporting the inner peripheral surface of a workpiece, the outer supporting clamp is used for supporting the outer peripheral surface of the workpiece, the inner supporting clamp comprises a middle shaft and an inner supporting assembly, the middle shaft is arranged in the middle of the workpiece and extends along the central axis of the workpiece, two ends of the middle shaft extend to the outer side of the workpiece, the inner supporting assembly is annular, the outer peripheral surface of the inner supporting assembly can be abutted against the inner side wall of the workpiece, and the inner peripheral surface of the inner supporting assembly is fixed with the middle shaft; the outer support fixture comprises a tensioning ring assembly and a rotary driving assembly, the tensioning ring is sleeved on the outer peripheral surface of the workpiece, and the rotary driving assembly can drive the tensioning ring assembly to rotate so that the tensioning ring assembly is attached to or far away from the outer peripheral surface of the workpiece. The inner and outer side surfaces of the welding position of the workpiece are supported by the inner supporting clamp and the outer supporting clamp, so that the stability of the workpiece during welding is ensured, and the welding precision is improved.
Description
Technical Field
The invention relates to the technical field of circular seam welding, in particular to a tension synchronous clamping device for circular seam welding.
Background
At present, most of circular seam welding adopts a fixed inner support or a plurality of inner support rods to complete the assembly and butt joint between a cylinder section and a cylinder section or between the cylinder section and a circular seam of a box bottom, and for example, the circular seam welding of a rocket storage box adopts the support structure. However, the above operations cannot achieve high precision and high efficiency, and the technical requirements on the assembler during the production process are very high, which is inconvenient for mass production of the storage tanks and for streamlined production by enterprises.
The rigidity of the aluminum alloy cylinder body is weak, roundness correction needs to be carried out in a rigid assembly mode, and the circumferential rigidity of the common inner support clamp is weak. Meanwhile, a gap is easily generated between the inner support fixture and the inner surface of the aluminum alloy cylinder in the assembling process, so that the welding defect of friction stir welding is caused, and the workpiece and the inner support can slip when the workpiece is displaced and rotated, so that the supporting function is lost.
Disclosure of Invention
The invention provides a tension synchronous clamping device for circular seam welding, which can reduce the cost of a tool fixture, avoid ascending operation and realize high-quality, efficient and green assembly and welding production of the circular seam welding of a rocket storage tank, aiming at solving the problems that an inner support adopted in the circular seam welding is easy to generate a gap with the inner surface of a workpiece to cause welding defects, and the inner support is easy to slip when rotating in a displacement mode.
The invention provides a tension synchronous clamping device for circumferential seam welding, which comprises an inner supporting clamp and an outer supporting clamp, wherein the inner supporting clamp is used for supporting the inner circumferential surface of a workpiece, the outer supporting clamp is used for supporting the outer circumferential surface of the workpiece, the inner supporting clamp comprises a middle shaft and an inner supporting assembly, the middle shaft is arranged in the middle of the workpiece and extends along the central axis of the workpiece, two ends of the middle shaft extend to the outer side of the workpiece, the inner supporting assembly is annular, the outer circumferential surface of the inner supporting assembly can be abutted against the inner side wall of the workpiece, and the inner circumferential surface of the inner supporting assembly is fixed with the middle shaft; outer support anchor clamps include tensioning ring subassembly and rotation driving subassembly, the outer peripheral face of work piece is located to the tensioning ring subassembly cover, rotation driving subassembly can drive the rotation of tensioning ring subassembly is so that the tensioning ring subassembly pastes the outer peripheral face tight or keep away from the work piece.
Preferably, the tension ring assembly comprises an annular ram and a plurality of arc-shaped outer pressing plates, and the plurality of arc-shaped outer pressing plates surround the outer peripheral surface of the workpiece and form an annular structure; the lateral surface of arc outer platen all is equipped with the jack catch to the evagination, the side of jack catch is provided with the spout, the side of annular ram is provided with the slide rail, the outer peripheral face of work piece is located just to annular ram cover annular ram with the jack catch passes through the spout with slide rail sliding connection, the rotation driving subassembly can drive the jack catch is followed annular ram slides so that the arc outer platen is close to or keeps away from the outer peripheral face of work piece.
Preferably, the rotation driving assembly comprises a driving device and an annular rotating piece, the annular rotating piece is sleeved on the outer side of the tensioning ring assembly, a plurality of limiting grooves are formed in the inner peripheral surface of the annular rotating piece at intervals, the end portions of the clamping jaws can extend into the limiting grooves, and the driving device can drive the annular rotating piece to rotate so as to drive the clamping jaws to slide along the annular ram.
Preferably, the outer peripheral face that the annular rotated the piece is provided with rack structure, drive arrangement includes rotary driving spare and driving gear, rotary driving spare's drive end with driving gear fixed connection, the driving gear with rack structure meshes, rotary driving spare can pass through the driving gear with rack structure drive the annular rotated the piece and rotates.
Preferably, the outer support fixture further comprises a stable support member disposed around the outer circumferential surface of the workpiece and located at one side of the annular rotating member; the side that the annular rotated the piece is provided with annular slide, the axis of slide with the axis coincidence that the annular rotated the piece, the slide slides and is provided with the slider, stabilize support piece with slider fixed connection.
Preferably, the inner support assembly is composed of a plurality of inner support components, each inner support component comprises a fixed disc, a telescopic driving mechanism and an arc-shaped inner support plate, the fixed disc is annular, the inner peripheral surface of the fixed disc is fixed on the middle shaft, one end of the telescopic driving mechanism is fixed on the outer peripheral surface of the fixed disc, the other end of the telescopic driving mechanism is fixed with the arc-shaped inner support plate, and the telescopic driving mechanism can drive the arc-shaped inner support plate to move in a direction away from or close to the fixed disc; the telescopic driving mechanism is uniformly arranged on the outer peripheral surface of the fixed disk at intervals, and under the driving of the telescopic driving mechanism, the plurality of arc-shaped inner supporting plates can form an annular structure to be attached to the inner peripheral surface of a workpiece.
Preferably, the both ends of fagging all are provided with first step and second step in the arc, and adjacent two one of them of two tip that the fagging is close to each other in the arc is provided with first step, another are provided with the second step, first step with the second step can cooperate so that adjacent two the fagging is pegged graft together in the arc.
Preferably, the side of first step is formed with first inclined plane, the side of second step is formed with the second inclined plane, the arc inner supporting plate is to keeping away from the in-process that the direction of fixed disk removed, first step with the joint gradually of second step, first inclined plane with extrusion force between the second inclined plane grow gradually.
Preferably, the outer support fixture further comprises a clamping rotating assembly, the clamping rotating assembly comprises a clamping ring, a fixing ring, an L-shaped support frame and an auxiliary support rod, the clamping ring is sleeved on the outer circumferential surface of the workpiece and is tightly attached to the outer circumferential surface of the workpiece, one end of the L-shaped support frame is fixed to the clamping ring, the other end of the L-shaped support frame is fixed to the fixing ring, and a plurality of L-shaped support frames are arranged between the clamping ring and the fixing ring at intervals; the auxiliary supporting rod is arranged on the inner side of the L-shaped supporting frame.
Preferably, the clamping device further comprises a fixing box, a middle shaft driving part is arranged in the fixing box, two ends of the middle shaft extend into the fixing box and are connected with the middle shaft driving part, the fixing ring is fixedly sleeved on the outer side of the middle shaft, and the middle shaft driving part can drive the middle shaft to rotate so as to drive the inner support assembly and the clamping rotating component to rotate.
The invention has the beneficial effects that:
1. the inner supporting fixture and the outer supporting fixture are arranged to support the inner side face and the outer side face of the welding position of the workpiece at the same time, so that the stability of the workpiece during welding is guaranteed, and the welding precision is improved.
2. The inner support fixture adopts a detachable structure, is arranged on the fixed box through the middle shaft, can be detached after welding is finished, and can be directly taken out manually after being detached, so that the inner support fixture is convenient to mount and detach.
3. The arc inner supporting plates increase the connection tightness among the arc inner supporting plates through the step structure, and meanwhile, the inclined surface structure is adopted to enable the arc inner supporting plates to generate circumferential force and expand the diameter to expand the circle, so that the inner side supporting force to the workpiece is guaranteed.
4. The outer supporting clamp can adjust the clamping degree of the outer peripheral surface of the workpiece through rotation, the rack structure and the driving gear on the outer peripheral surface of the annular rotating piece are not only used as a driving transmission structure, but also are equivalent to a natural locking device, after the outer peripheral surface of the annular rotating piece is adjusted to the optimal constraint state according to the specific shape of the workpiece, the driving gear and the rack structure are clamped with each other after the rotating driving piece does not work, the annular rotating piece can be prevented from rotating in any direction, and the annular rotating piece is more stable.
5. The device has simple and compact structure and easy operation, and can be popularized in a large area.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a tension synchronous clamping device for circumferential weld assembly welding according to the present invention.
FIG. 2 is a side view of an outer support fixture in the tension synchronization clamping device for circumferential weld assembly and welding according to the present invention.
FIG. 3 is a cross-sectional view of an outer support clamp in the tension synchronization clamping device for circumferential weld assembly welding according to the present invention.
FIG. 4 is a side view of an inner support fixture in the tension synchronization clamping device for circumferential weld assembly welding according to the present invention.
In the figure: 1. the middle shaft, 2, an annular ram, 3, an arc outer pressing plate, 4, a clamping jaw, 5, a sliding groove, 6, a sliding rail, 7, an annular rotating piece, 8, a limiting groove, 9, a rack structure, 10, a rotary driving piece, 11, a driving gear, 12, a stable supporting piece, 13, a sliding rail, 14, a sliding block, 15, a fixed disc, 16, a telescopic driving mechanism, 17, an arc inner supporting plate, 18, a first step, 19, a second step, 20, a clamping ring, 21, a fixing ring, 22, an L-shaped supporting frame, 23, an auxiliary supporting rod, 24, a fixing box, 100 and a workpiece.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is obvious that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments in this patent without making creative efforts, shall fall within the protection scope of this patent.
As shown in fig. 1 to 4, in this embodiment, the invention provides a synchronous tension clamping device for circumferential seam welding, which includes an inner supporting fixture and an outer supporting fixture, the inner supporting fixture is used for supporting an inner circumferential surface of a workpiece 100, the outer supporting fixture is used for supporting an outer circumferential surface of the workpiece 100, the inner supporting fixture includes a central shaft 1 and an inner supporting assembly, the central shaft 1 is disposed in a middle of the workpiece 100 and extends along a central axis of the workpiece 100, two ends of the central shaft 1 both extend to an outer side of the workpiece 100, the inner supporting assembly is annular, the outer circumferential surface of the inner supporting assembly can abut against an inner side wall of the workpiece 100, and the inner circumferential surface of the inner supporting assembly is fixed to the central shaft 1; the outer supporting clamp comprises a tensioning ring assembly and a rotary driving assembly, the tensioning ring assembly is sleeved on the outer peripheral surface of the workpiece 100, and the rotary driving assembly can drive the tensioning ring assembly to rotate so that the tensioning ring assembly is attached to or far away from the outer peripheral surface of the workpiece 100.
Specifically, as shown in fig. 1 to 3, the tension ring assembly includes an annular ram 2 and a plurality of arc-shaped outer pressing plates 3, wherein the plurality of arc-shaped outer pressing plates 3 surround the outer circumferential surface of the workpiece 100 and form an annular structure; the outer side surface of the arc-shaped outer pressing plate 3 is provided with a clamping jaw 4 in an outward protruding mode, the side surface of the clamping jaw 4 is provided with a sliding groove 5, the side surface of the annular ram 2 is provided with a sliding rail 6, the outer peripheral surface of the workpiece 100 is sleeved with the annular ram 2, the annular ram 2 and the clamping jaw 4 are connected with the sliding rail 6 in a sliding mode through the sliding groove 5, and the rotary driving assembly can drive the clamping jaw 4 to slide along the annular ram 2 so that the arc-shaped outer pressing plate 3 is close to or far away from the outer peripheral surface of the workpiece 100. Wherein, the rotation driving assembly includes that drive arrangement and annular rotate 7, and the annular rotates 7 covers the outside of locating the tensioning ring subassembly, and the inner peripheral surface interval that the annular rotated 7 is equipped with a plurality of spacing grooves 8, and the tip of jack catch 4 can stretch into spacing groove 8 in, and drive arrangement can drive annular rotate 7 and rotate and slide along annular ram 2 in order to drive jack catch 4. And the rotation of the annular rotation piece 7 is mainly realized through a gear and rack mode, as shown in the figure, the peripheral face of the annular rotation piece 7 is provided with a rack structure 9, the driving device comprises a rotation driving piece 10 and a driving gear 11, the driving end of the rotation driving piece 10 is fixedly connected with the driving gear 11, the driving gear 11 is meshed with the rack structure 9, and the rotation driving piece 10 can drive the annular rotation piece 7 to rotate through the driving gear 11 and the rack structure 9. And as can also be seen from the figure, the diameter of the driving gear 11 is smaller, and the requirement on the power of the driving piece can be reduced by driving the large gear structure to rotate through the small gear.
Meanwhile, in order to further increase the stability and rigidity of the outer supporting clamp and the whole structure, a stable supporting piece 12 can be added on the outer side surface of the workpiece 100, and the stable supporting piece 12 is arranged around the outer peripheral surface of the workpiece 100 and is positioned on one side of the annular rotating piece 7; the side of the annular rotating part 7 is provided with an annular slide way 13, the axis of the slide way 13 is overlapped with the axis of the annular rotating part 7, the slide way 13 is provided with a slide block 14 in a sliding manner, and the stable supporting part 12 is fixedly connected with the slide block 14. Thus, when the annular rotating member 7 needs to rotate, the stable supporting member 12 does not limit or affect the rotation of the annular rotating member 7 due to the existence of the sliding blocks 14, and meanwhile, in order to increase the supporting effect, a plurality of sliding blocks 14 can be arranged to increase the connecting point. The stabilizing support 12 is an annular structural member, and when welding, the bottom of the stabilizing support 12 can be directly fixed on the base during welding operation, so as to support and stabilize the inner and outer support fixtures and the workpiece 100.
As shown in fig. 4, the inner support assembly is composed of a plurality of inner support components, each inner support component includes a fixed disk 15, a telescopic driving mechanism 16 and an arc inner support plate 17, the fixed disk 15 is annular, the inner circumferential surface of the fixed disk 15 is fixed on the middle shaft 1, one end of the telescopic driving mechanism 16 is fixed on the outer circumferential surface of the fixed disk 15, the other end of the telescopic driving mechanism 16 is fixed with the arc inner support plate 17, and the telescopic driving mechanism 16 can drive the arc inner support plate 17 to move in a direction away from or close to the fixed disk 15; the telescopic driving mechanism 16 is uniformly arranged on the outer peripheral surface of the fixed disk 15 at intervals, and under the driving of the telescopic driving mechanism 16, the plurality of arc-shaped inner supporting plates 17 can form an annular structure to be attached to the inner peripheral surface of the workpiece 100. In order to increase the connection stability between the arc inner supporting plates 17, the two ends of the arc inner supporting plates 17 are provided with a first step 18 and a second step 19, one of the two ends of the adjacent two arc inner supporting plates 17 close to each other is provided with the first step 18, the other end of the adjacent two arc inner supporting plates 17 is provided with the second step 19, and the first step 18 and the second step 19 can be matched to enable the adjacent two arc inner supporting plates 17 to be clamped together. The side of the first step 18 is provided with a first inclined surface, the side of the second step 19 is provided with a second inclined surface, the first step 18 and the second step 19 are gradually clamped in a process that the arc inner supporting plate 17 moves in a direction far away from the fixed disc 15, and the extrusion force between the first inclined surface and the second inclined surface is gradually increased, so that the purposes of expanding diameter and expanding round are achieved.
As shown in fig. 1, the outer support fixture further includes a clamping rotation assembly, the clamping rotation assembly includes a clamping ring 20, a fixing ring 21, an L-shaped support frame 22 and an auxiliary support rod 23, the clamping ring 20 is fixedly sleeved on the outer circumferential surface of the workpiece 100 and tightly attached to the outer circumferential surface of the workpiece 100, one end of the L-shaped support frame 22 is fixed to the clamping ring 20, the other end of the L-shaped support frame 22 is fixed to the fixing ring 21, and a plurality of L-shaped support frames 22 are arranged between the clamping ring 20 and the fixing ring 21 at intervals; the auxiliary support bar 23 is arranged at the inner side of the L-shaped support frame 22.
As shown in fig. 1, the clamping device further comprises a fixing box 24, a middle shaft driving member is arranged in the fixing box 24, two ends of the middle shaft 1 extend into the fixing box 24 and are connected with the middle shaft driving member, the fixing ring 21 is fixedly sleeved outside the middle shaft 1, and the middle shaft driving member can drive the middle shaft 1 to rotate so as to drive the inner support assembly and the clamping rotating assembly to rotate. The rotation of the inner and outer supporting clamps is simultaneously performed through one driving piece, so that the consistency of the inner and outer rotation can be ensured, and the stable connection between the clamps and the workpiece 100 can be ensured.
The working principle of the synchronous tension clamping device for circular seam welding is as follows:
when the circular seam is installed and welded, the two workpieces are fixedly clamped by the inner supporting clamp and the outer supporting clamp, after welding operation is completed, the outer supporting clamp can directly loosen the workpiece 100 in a rotating mode, after the outer supporting clamp is loosened, the inner supporting clamp can be directly disassembled into scattered parts, and then the scattered parts are directly taken out in a manual mode.
The beneficial effects of the invention are as follows through the embodiment:
1. the inner supporting fixture and the outer supporting fixture are arranged to support the inner side face and the outer side face of the welding position of the workpiece at the same time, so that the stability of the workpiece during welding is ensured, and the welding precision is improved.
2. The inner support fixture adopts a detachable structure, is arranged on the fixed box through the middle shaft, can be detached after welding is finished, and can be directly taken out manually after being detached, so that the inner support fixture is convenient to mount and detach.
3. The arc inner supporting plates increase the connection tightness among the arc inner supporting plates through the step structure, and meanwhile, the inclined surface structure is adopted to enable the arc inner supporting plates to generate circumferential force and expand the diameter to expand the circle, so that the inner side supporting force to the workpiece is guaranteed.
4. The outer supporting clamp can adjust the clamping degree of the outer peripheral surface of the workpiece through rotation, the rack structure and the driving gear on the outer peripheral surface of the annular rotating part are not only used as a driving transmission structure, but also are equivalent to a natural locking device, after the outer supporting clamp is adjusted to the optimal constraint state according to the specific shape of the workpiece, the driving gear and the rack structure are clamped with each other after the rotating driving part does not work, the annular rotating part can be prevented from rotating in any direction, and the annular rotating part is more stable.
5. The device has simple and compact structure and easy operation, and can be popularized in a large area.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The tension synchronous clamping device for the circular seam welding comprises an inner supporting clamp and an outer supporting clamp, wherein the inner supporting clamp is used for supporting the inner circumferential surface of a workpiece, the outer supporting clamp is used for supporting the outer circumferential surface of the workpiece, and the tension synchronous clamping device is characterized in that the inner supporting clamp comprises a middle shaft and an inner supporting assembly, the middle shaft is arranged in the middle of the workpiece and extends along the central axis of the workpiece, two ends of the middle shaft extend to the outer side of the workpiece, the inner supporting assembly is annular, the outer circumferential surface of the inner supporting assembly can be abutted against the inner side wall of the workpiece, and the inner circumferential surface of the inner supporting assembly is fixed with the middle shaft;
the outer support anchor clamps include tensioning ring subassembly and rotation driving subassembly, the outer peripheral face of work piece is located to the tensioning ring subassembly cover, rotation driving subassembly can drive the rotation of tensioning ring subassembly makes the tensioning ring subassembly pastes the outer peripheral face of tight or keeping away from the work piece.
2. The synchronous tension clamping device for circumferential weld assembly and welding according to claim 1, wherein the tensioning ring assembly comprises an annular ram and a plurality of arc-shaped outer pressing plates, and the plurality of arc-shaped outer pressing plates surround the outer circumferential surface of the workpiece and form an annular structure; the lateral surface of arc outer platen all is equipped with the jack catch to the evagination, the side of jack catch is provided with the spout, the side of annular ram is provided with the slide rail, the outer peripheral face of work piece is located just to annular ram cover annular ram with the jack catch passes through the spout with slide rail sliding connection, the rotation driving subassembly can drive the jack catch is followed annular ram slides so that the arc outer platen is close to or keeps away from the outer peripheral face of work piece.
3. The synchronous tension clamping device for circumferential weld assembly welding according to claim 2, wherein the rotary driving assembly comprises a driving device and an annular rotating member, the annular rotating member is sleeved outside the tension ring assembly, a plurality of limiting grooves are formed in the inner circumferential surface of the annular rotating member at intervals, the end portions of the clamping jaws can extend into the limiting grooves, and the driving device can drive the annular rotating member to rotate so as to drive the clamping jaws to slide along the annular ram.
4. The synchronous tension clamping device for the circular seam welding according to claim 3, wherein a rack structure is arranged on the outer peripheral surface of the annular rotating member, the driving device comprises a rotary driving member and a driving gear, the driving end of the rotary driving member is fixedly connected with the driving gear, the driving gear is meshed with the rack structure, and the rotary driving member can drive the annular rotating member to rotate through the driving gear and the rack structure.
5. The synchronous tension clamping device for circumferential weld assembly and welding according to claim 4, wherein the outer support clamp further comprises a stable support part which is arranged around the outer circumferential surface of the workpiece and is positioned on one side of the annular rotating part; the side that the annular rotated the piece is provided with annular slide, the axis of slide with the axis coincidence that the annular rotated the piece, the slide slides and is provided with the slider, stabilize support piece with slider fixed connection.
6. The synchronous tension clamping device for the circular seam welding and assembling according to claim 1, wherein the inner support assembly is composed of a plurality of inner support components, each inner support component comprises a fixed disk, a telescopic driving mechanism and an arc-shaped inner support plate, the fixed disk is annular, the inner circumferential surface of the fixed disk is fixed on the central shaft, one end of the telescopic driving mechanism is fixed on the outer circumferential surface of the fixed disk, the other end of the telescopic driving mechanism is fixed with the arc-shaped inner support plate, and the telescopic driving mechanism can drive the arc-shaped inner support plate to move in a direction away from or close to the fixed disk; the telescopic driving mechanisms are uniformly arranged on the outer peripheral surface of the fixed disk at intervals, and the plurality of arc-shaped inner supporting plates can form an annular structure to be attached to the inner peripheral surface of the workpiece under the driving of the telescopic driving mechanisms.
7. The synchronous clamping device of tension of circumferential weld dress welding of claim 6, characterized in that, the both ends of arc inner bracing board all are provided with first step and second step, and two adjacent arc inner bracing board one of them of both ends that are close to each other is provided with the first step, another is provided with the second step, the first step with the second step can cooperate so that two adjacent arc inner bracing boards are pegged together.
8. The synchronous clamping device of tension that circumferential weld dress welded of claim 7, characterized in that, the side of first step is formed with first inclined plane, the side of second step is formed with the second inclined plane, the in-process that the fagging removed to the direction of keeping away from the fixed disk in the arc, first step with the second step joint gradually, extrusion force between first inclined plane and the second inclined plane grow gradually.
9. The synchronous tension clamping device for the circular seam welding according to claim 1, wherein the outer support clamp further comprises a clamping rotating assembly, the clamping rotating assembly comprises a clamping ring, a fixing ring, an L-shaped support frame and an auxiliary support rod, the clamping ring is sleeved on the outer circumferential surface of the workpiece and is tightly attached to the outer circumferential surface of the workpiece, one end of the L-shaped support frame is fixed to the clamping ring, the other end of the L-shaped support frame is fixed to the fixing ring, and a plurality of L-shaped support frames are arranged between the clamping ring and the fixing ring at intervals; the auxiliary supporting rod is arranged on the inner side of the L-shaped supporting frame.
10. The synchronous tension clamping device for circumferential weld assembly welding according to claim 9, further comprising a fixed box, wherein a middle shaft driving member is disposed in the fixed box, two ends of the middle shaft extend into the fixed box and are connected to the middle shaft driving member, the fixed ring is fixedly sleeved on the outer side of the middle shaft, and the middle shaft driving member can drive the middle shaft to rotate so as to drive the inner support assembly and the clamping rotating assembly to rotate.
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| CN202211419612.5A CN115922188B (en) | 2022-11-14 | 2022-11-14 | Tension synchronous clamping device for circular seam welding |
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| EP2561949A1 (en) * | 2011-08-24 | 2013-02-27 | Wartmann Technologie AG | Device for centring, supporting and weld bath securing when connecting, through friction stir welding, butt joints of rotation symmetric hollow bodies |
| CN203330636U (en) * | 2013-06-28 | 2013-12-11 | 中国航空工业集团公司北京航空制造工程研究所 | Self-supporting friction stir welding and girth welding tool clamp |
| CN204075501U (en) * | 2014-07-04 | 2015-01-07 | 上海拓璞数控科技有限公司 | A kind of overall circumferential weld friction stir welding connection device of large-scale tank |
| CN106624549A (en) * | 2016-12-14 | 2017-05-10 | 上海交通大学 | Rotary vertical assembling device for thin-walled barrel-shaped components |
| CN109483069A (en) * | 2018-11-29 | 2019-03-19 | 常州戴芮珂机电科技有限公司 | A kind of chuck with pumping dirt function |
| CN210099385U (en) * | 2019-01-30 | 2020-02-21 | 济南金威刻科技发展有限公司 | Two-two linkage self-centering chuck for pipe cutting machine |
| CN210700750U (en) * | 2019-07-25 | 2020-06-09 | 福建宝中海洋工程股份有限公司 | Ship mast maintenance device |
| CN110497216A (en) * | 2019-08-24 | 2019-11-26 | 大连理工大学 | Synchronization self-locking type pneumatic Self adapting fixture for annular thin wall part processing |
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