CN212946173U - Tensioning assembly mechanism and assembly rotary welding equipment - Google Patents
Tensioning assembly mechanism and assembly rotary welding equipment Download PDFInfo
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- CN212946173U CN212946173U CN202021626294.6U CN202021626294U CN212946173U CN 212946173 U CN212946173 U CN 212946173U CN 202021626294 U CN202021626294 U CN 202021626294U CN 212946173 U CN212946173 U CN 212946173U
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Abstract
The utility model provides a tensioning assembly mechanism and an assembly rotary welding device, wherein the tensioning assembly mechanism comprises a driving unit; the connecting rod unit comprises a plurality of connecting rods driven by the driving unit to synchronously move and a limiting disc for limiting the connecting rods to expand outwards or furl inwards; and the driving unit drives the connecting rods to drive the tensioning blocks to move synchronously along the radial direction of the limiting disc. The utility model discloses a tight group that rises is to mechanism drives through drive unit drive connecting rod unit and rises tight piece synchronous motion, carries out the group to rising to tight to band welded flange and pipe fitting, has improved group to efficiency and accurate nature.
Description
Technical Field
The utility model relates to the field of welding technique, especially, relate to a flange and pipe fitting are quick and the tight group of rising of accurate butt joint is to mechanism and group to spin welding equipment.
Background
Generally, butt welding of flanges and pipe fittings is carried out by performing assembly spot welding in advance and then clamping the flanges and the pipe fittings on a tool for spin welding. However, in the existing process, when the flanges are paired, the perpendicularity and concentricity of the end faces of the flanges and the pipe fittings are difficult to guarantee, the adjustment and correction time is long, and the pairing process efficiency is low.
In view of the above, there is a need for an improved tensioning assembly mechanism and an assembly spin welding apparatus to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flange and pipe fitting are quick and the tight group of rising of accurate butt joint to mechanism and group to spin welding equipment.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a tight pairing mechanism that rises includes:
a drive unit;
the connecting rod unit comprises a plurality of connecting rods driven by the driving unit to synchronously move and a limiting disc for limiting the connecting rods to expand outwards or furl inwards;
and the driving unit drives the connecting rods to drive the tensioning blocks to move synchronously along the radial direction of the limiting disc.
Further, the driving unit comprises an air cylinder, an air valve assembly and a connecting block, and the connecting rod unit is rotatably connected with the connecting block.
Furthermore, the connecting rod unit also comprises a sliding block which is rotationally connected with the connecting block, and the connecting rods are rotationally connected with the sliding block.
Further, the connecting rod include with the sliding block rotate the rotation connecting rod of being connected, with the rotation connecting rod is kept away from the tight pole in the one end rotation of sliding block is connected, the tight pole in the top with spacing dish cooperatees in order to follow the radial movement of spacing dish, the tight piece that rises connect in the tight pole in the top is kept away from the one end of rotating the connecting rod.
Furthermore, the limiting disc is provided with a limiting strip extending along the radial direction and a limiting block connected to the limiting strip in a sliding manner; the tightening rod is fixed on the limiting block.
Further, the drive unit is located one side that does not set up spacing strip on the spacing dish, the centre of spacing dish has the confession the sliding block the rotating connecting rod is followed spacing dish axial displacement's the hole of stepping down.
Furthermore, the jacking rod and the tensioning block are fixedly positioned through a step rabbet surface.
Further, the outer end face of the tensioning block is an arc face.
Furthermore, a plurality of connecting rods are evenly distributed along the circumferential direction of the limiting disc.
A welding device comprises any one of the tensioning assembly mechanisms.
The utility model has the advantages that: the utility model discloses a tight group that rises is to mechanism drives through drive unit drive connecting rod unit and rises tight piece synchronous motion, carries out the group to rising to tight to band welded flange and pipe fitting, has improved group to efficiency and accurate nature.
Drawings
Fig. 1 is a perspective view of a pair-up spin welding apparatus according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of a portion of the assembly of the twin spin welding apparatus of FIG. 1;
FIG. 4 is a partial enlarged view of B in FIG. 3;
FIG. 5 is an enlarged view of a portion C of FIG. 3;
FIG. 6 is a schematic view of FIG. 3 at another angle with power removed;
FIG. 7 is an exploded view of FIG. 6;
FIG. 8 is another exploded view of FIG. 6;
FIG. 9 is a schematic view of the tight fitting assembly mechanism in cooperation with the pipe and the flange;
FIG. 10 is a schematic view of FIG. 9 at another angle;
FIG. 11 is a cross-sectional view taken along D-D of FIG. 10;
FIG. 12 is a perspective view of the tension pairing mechanism;
FIG. 13 is a cross-sectional view taken along direction E-E of FIG. 12;
FIG. 14 is an exploded view of FIG. 12;
fig. 15 is another exploded view of the tensioning assembly mechanism with the limiting plate removed.
The welding device comprises 100-pair of assembly rotary welding equipment, 1-support body, 2-flange positioning mechanism, 21-hanging disc, 22-guide rod guide sleeve, 23-positioning block and 24-rotary pressing plate; 3-pipe fitting positioning mechanism, 31-conveying belt, 32-sliding rail and 33-lifting jacking device; 4-a tensioning assembly mechanism, 41-a driving unit, 411-an air cylinder and 412-a connecting block; 42-connecting rod unit, 420-sliding block, 421-connecting rod, 4211-rotating connecting rod, 4212-tightening rod, 422-limiting disc, 43-tensioning block, 431-limiting strip and 432-limiting block; 5-a rotation driving mechanism; 6-welding gun component, 61-outer welding gun component, 62-inner welding gun component; 7-a power supply; m-pipe fitting, N-flange.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.
In the various drawings of the present invention, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for ease of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.
Referring to fig. 1 to 15, a pair-up spin welding apparatus 100 according to a preferred embodiment of the present invention includes a flange positioning mechanism 2, a pipe positioning mechanism 3, a tensioning assembly mechanism 4 for assembling a pipe M and a flange N to be welded, a rotation driving mechanism 5 cooperating with the tensioning assembly mechanism 4 to drive the pipe M and the flange N to rotate after assembly, a welding gun assembly 6 at the joint of the welded pipe M and the flange N, a control system, and a power supply 7. Typically, the control system and the power supply 7 are located together for ease of wiring.
Of course, the pairing spin welding apparatus 100 further includes a support body 1 for supporting the flange positioning mechanism 2, the tensioning pairing mechanism 4, the rotation driving mechanism 5 and the welding gun assembly 6. In this embodiment, the support body 1 includes a support plate and a box-shaped box body located on the support plate, the box body is formed by welding metal plates, and the support body supports the above components and protects the components.
The flange positioning mechanism 2 comprises a hanging disc 21 used for fixing a flange N to be welded, a guide rod guide sleeve 22 fixed with the hanging disc 21, and a jacking cylinder acting on the guide rod guide sleeve 22 to drive the hanging disc 21 to be close to or far away from the pipe fitting positioning mechanism 3. The guide rod guide sleeve 22 may be an independent structure connected to the tightening cylinder, or may be a part of the tightening cylinder. The flange N may be suspended and fixed to the hanging plate 21 in any detachable manner, for example, by screws.
Furthermore, the flange positioning mechanism 2 further comprises a plurality of positioning blocks 23 and a plurality of rotary pressing plates 24, and the flange N is assembled and disassembled; the hanging disc 21 is provided with at least one group of positioning holes which are distributed along the radial direction and used for installing the positioning blocks 23 and/or the rotary pressing plate 24; the position of the positioning block 23 and/or the rotary pressure plate 24 on the hanging disc 21 is adjusted by installing the positioning block and/or the rotary pressure plate with different positioning holes, so as to hang and fix flanges N with different diameters.
The specific using process is as follows: when the pipe fitting positioning mechanism 3 conveys the pipe fitting to the welding station, fixing a plurality of positioning blocks 23 and a plurality of rotary pressing plates 24 according to the size of the flange N to be welded; then, the flange N is placed on the inner sides of the positioning blocks 23, and the positioning blocks 23 clamp and position the flange N from the outer peripheral side of the flange N; and then the rotary pressing plate 24 is rotated to fix the flange N and the hanging disc 21, so that the operation is simple. Starting the jacking cylinder, pushing the hanging disc 21 to move towards the pipe fitting positioning mechanism 3 through the guide rod guide sleeve 22, so that the flange N is butted with the pipe fitting M, for example, in the embodiment, the flange N is sleeved outside the end part of the pipe fitting M, and the flange N and the pipe fitting M are paired and pre-fixed through the tensioning action of the tensioning pairing mechanism 4; and then, reversely rotating the rotary pressing plate 24 to release the flange N, starting a jacking cylinder to reversely pull the hanging disc 21 to be far away from the pipe fitting positioning mechanism 3, and separating the flange N from the flange positioning mechanism 2.
The pipe fitting positioning mechanism 3 comprises a conveying belt 31 for conveying the pipe fitting M to be welded, a slide rail 32 perpendicular to the conveying belt 31, and at least two lifting and jacking devices 33 slidably connected to the slide rail 32. The lifting jacking device 33 corresponds to the flange positioning mechanism 2, when the flange positioning mechanism 2 transmits the flange N to the welding station, the pipe M to be welded moves to the position where the end to be welded of the pipe M corresponds to the flange N to be welded through the transmission belt 31, the lifting jacking device 33 gradually ascends and jacks the pipe M to be welded until the surface to be welded of the pipe M is concentric with the flange N, and then the pipe M moves along the sliding rail 32 through the jacking mechanism, so that the pipe M moves towards the flange positioning mechanism 2, and the positioning of the pipe M to be welded and the flange N is realized.
It will be appreciated by those skilled in the art that the pair of welded pipe M and flange N can be made by adjusting one or both of them to move toward each other.
The tensioning assembly mechanism 4 comprises a driving unit 41, a connecting rod unit 42 driven by the driving unit 41 to move synchronously, and a tensioning block 43 connected with the connecting rod unit 42.
The driving unit 41 is a device for realizing the moving stroke and the tension force of the tension assembly mechanism 4, and adopts pneumatic elements, including a cylinder 411, an air valve assembly and a connecting block 412. The cylinder 411 includes a cylinder body, a piston moving in the cylinder body, and a piston rod communicated with the piston, the connecting block 412 is fixed at one end of the piston rod departing from the piston, and the connecting rod unit 42 is rotatably connected with the connecting block 412.
When the air cylinder 411 works, the connecting block 412 is far away from or close to the air cylinder 411, so that the connecting rod unit 42 is driven to expand outwards or furl inwards, and tensioning and loosening of the tensioning group to the mechanism 4 are realized.
The connecting rod unit 42 is a motion executing mechanism for realizing radial movement, and includes a plurality of connecting rods 421 driven by the driving unit 41 to move synchronously, a limiting disc 422 for limiting the outward expansion or inward contraction of the connecting rods 421, and a tensioning block 43 fixed to the outer end of the connecting rods 421.
Further, the link unit 42 further includes a sliding block 420 rotatably connected to the connecting block 412 in a circumferential direction through a bearing, and a plurality of links 421 are rotatably connected to the sliding block 420 to expand outward or contract inward toward the sliding block 420, so that the link unit 42 can rotate together with the workpiece.
Before welding, after the pipe M and the flange N are positioned, the cylinder 411 is pushed, the connecting rods 421 of the connecting rod unit 42 are opened outwards, and the tensioning block 43 is driven to move outwards along the radial direction of the limiting disc 422 to jack the workpiece, so that tensioning is realized; and when the rotary driving mechanism 5 drives the workpiece to rotate, the pair of tensioning mechanisms 4 rotates along with the workpiece. After welding, the cylinder 411 retracts, the connecting rods 421 retract inwards, and the tensioning block 43 moves inwards along the limiting disc 422 in the radial direction to be separated from the workpiece, so that loosening is achieved. The stroke and force of the link unit 42 are designed according to the size of the workpiece.
In an embodiment, the link 421 includes a rotating link 4211 rotatably connected to the sliding block 420, and a tightening rod 4212 rotatably connected to an end of the rotating link 4211 away from the sliding block 420, the tightening rod 4212 is engaged with the limiting disc 422 and moves along a radial direction of the limiting disc 422, and the tension block 43 is connected to an end of the tightening rod 4212 away from the rotating link 4211.
The limiting disc 422 is provided with a limiting strip 431 extending along the radial direction and a limiting block 432 connected to the limiting strip 431 in a sliding manner; the tightening rod 4212 is fixed on the limiting block 432 through a fixing plate or directly. When the air cylinder 411 is pushed to move forward, the sliding block 420 moves forward, and is restricted by the movement of the limiting block 432 along the limiting strip 431, the rotating connecting rod 4211 rotates to enable one end far away from the connecting block 412 to move outwards, and the tightening rod 4212 drives the tensioning block 43 to move outwards to tighten the workpiece.
The jacking rod 4212 and the tensioning block 43 are positioned by a step spigot surface and are fastened through screw connection. The tensioning block 43 is a stressed supporting member for abutting against a workpiece, and the tensioning block 43 is connected with the abutting rod 4212 of the connecting rod unit 42 through a screw, so that the tensioning block 43 of the pipe fittings M with different specifications can be replaced conveniently.
In order to ensure the joint and tension between the pipe fitting and the workpiece, the outer end surface of the tension block 43 is a cambered surface, and the cambered surface is consistent with the cambered surface of the pipe fitting M. The width of the tensioning block 43 is designed to be suitable for the welding requirement. In the top tensioning block 43, a section of notch with an angle needs to be machined in the middle, so that the extra height of the welding line on the back of the pipe fitting M does not interfere with the rotation of the workpiece.
In this embodiment, the driving unit 41 is located on the side of the limiting disc 422 where the limiting bar 431 is not disposed, and the middle of the limiting disc 422 is provided with a yielding hole for the sliding block 420 and the rotating link 4211 to move along the axial direction of the limiting disc 422.
The rotary driving mechanism 5 drives the pipe M to rotate, and the process requirements of welding, polishing, detection and the like are met. The rotation driving mechanism 5 comprises a driving motor and a rotation supporting body which is arranged on the supporting body 1 and is meshed with an output shaft gear of the driving motor, a mounting surface of the rotation supporting body is fixed with the limiting disc 422 to drive the limiting disc 422 to rotate, and then the connecting rod 421 and the tensioning block 43 are used for driving the pair of the tensioned pipe fitting M and the tensioned flange N to rotate.
The pipe fitting positioning mechanism 3, the tensioning assembly mechanism 4, the rotary driving mechanism 5 and the welding gun assembly 6 are all in communication connection with the control system so as to achieve automatic alignment, assembly and rotary welding.
The welding gun assembly 6 comprises an outer welding gun assembly 61 and an inner welding gun assembly 62 which are fixed on the support body 1; the workpieces are welded from the inner side and the outer side. The outer welding gun assembly 61 is fixed to the top of the box body, the gun head of the welding gun is opposite to the joint of the outer wall of the pipe fitting M and the flange N, and the flange N and the pipe fitting M are welded to the outside of the pipe fitting M. The inner welding gun assembly 62 is fixed on a supporting plate on one side of the box body 1, which is far away from the pipe fitting M, and a gun head of the welding gun penetrates through the box body 1 and extends into the pipe fitting M to weld the pipe fitting M and the flange N from the inner side. The outer and inner torch assemblies 61 and 62 are of a conventional construction and will not be described further herein.
The utility model discloses a use method to the spin welding equipment 100 is, through 2 location flange N of said flange positioning mechanism, move and position the pipe fitting M through the pipe fitting positioning mechanism 3, make flange N and pipe fitting M according to the butt joint of the predetermined welding scheme; and starting the tensioning assembly mechanism 4 to simultaneously tension the pipe M and the flange N to be welded to realize assembly, checking assembly gaps and misalignment of the pipe M and the flange N, and driving the rotary driving mechanism 5 and the welding gun assembly 6 to realize welding after welding conditions are met. In the process, the control system controls the operation of other parts, and the power supply 7 supplies power to other parts.
The utility model discloses a group is to spin welding equipment 100, through tight group to mechanism 4 that rises to carry out the group to rise to the welded flange N and pipe fitting M, has improved group to efficiency and precision; the welding can be carried out through the rotary driving mechanism 5 and the welding gun assembly 6 without spot welding, and the welding quality and the welding efficiency are greatly improved.
To sum up, the utility model discloses a tight group that rises is to mechanism 4 drives through drive unit 41 drive connecting rod unit 42 and rises tight piece 43 synchronous motion, carries out the group to rising to the welded flange N and pipe fitting M, has improved group to efficiency and accurate nature.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only a specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a tight group of rising is to mechanism which characterized in that includes:
a drive unit;
the connecting rod unit comprises a plurality of connecting rods driven by the driving unit to synchronously move and a limiting disc for limiting the connecting rods to expand outwards or furl inwards;
and the driving unit drives the connecting rods to drive the tensioning blocks to move synchronously along the radial direction of the limiting disc.
2. The tension pairing mechanism as claimed in claim 1, wherein: the driving unit comprises an air cylinder, an air valve assembly and a connecting block, and the connecting rod unit is rotatably connected with the connecting block.
3. The tension pairing mechanism as claimed in claim 2, wherein: the connecting rod unit further comprises a sliding block which is rotatably connected with the connecting block along the circumferential direction, and the connecting rods are rotatably connected with the sliding block.
4. The tension pairing mechanism as claimed in claim 3, wherein: the connecting rod include with the sliding block rotate the rotation connecting rod of connecting, with the rotation connecting rod is kept away from the one end of sliding block rotates the tight pole of connection, the tight pole of top with spacing dish cooperatees in order to follow the radial movement of spacing dish, the tight piece that rises connect in the tight pole of top is kept away from the one end of rotating the connecting rod.
5. The tension pairing mechanism as claimed in claim 4, wherein: the limiting disc is provided with a limiting strip extending along the radial direction and a limiting block connected to the limiting strip in a sliding manner; the tightening rod is fixed on the limiting block.
6. The tension pairing mechanism as claimed in claim 5, wherein: the drive unit is located one side that does not set up spacing strip on the spacing dish, the centre of spacing dish has the confession the sliding block the rotating connecting rod is followed the axial displacement's of spacing dish hole of stepping down.
7. The tension pairing mechanism as claimed in claim 4, wherein: the jacking rod and the tensioning block are fixedly positioned through a step rabbet surface.
8. The tension pairing mechanism as claimed in claim 1, wherein: the outer end face of the tensioning block is a cambered surface.
9. The tension pairing mechanism as claimed in claim 1, wherein: the connecting rods are uniformly distributed along the circumferential direction of the limiting disc.
10. A set of rotating welding equipment, characterized in that: the tensioning assembly mechanism comprises the tensioning assembly mechanism as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021626294.6U CN212946173U (en) | 2020-08-06 | 2020-08-06 | Tensioning assembly mechanism and assembly rotary welding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021626294.6U CN212946173U (en) | 2020-08-06 | 2020-08-06 | Tensioning assembly mechanism and assembly rotary welding equipment |
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| CN212946173U true CN212946173U (en) | 2021-04-13 |
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| CN202021626294.6U Active CN212946173U (en) | 2020-08-06 | 2020-08-06 | Tensioning assembly mechanism and assembly rotary welding equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073679A (en) * | 2023-03-31 | 2023-05-05 | 合肥东昇机械科技有限公司 | Rectifying mechanism, heating device and method |
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2020
- 2020-08-06 CN CN202021626294.6U patent/CN212946173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116073679A (en) * | 2023-03-31 | 2023-05-05 | 合肥东昇机械科技有限公司 | Rectifying mechanism, heating device and method |
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