CN113510432A - Combined assembly core expansion tool - Google Patents
Combined assembly core expansion tool Download PDFInfo
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- CN113510432A CN113510432A CN202110413651.3A CN202110413651A CN113510432A CN 113510432 A CN113510432 A CN 113510432A CN 202110413651 A CN202110413651 A CN 202110413651A CN 113510432 A CN113510432 A CN 113510432A
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- inclined surface
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- expansion
- expanding
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- 238000009826 distribution Methods 0.000 claims abstract description 29
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 description 14
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The application discloses modular group is to bloated core frock, it includes: the guide shaft is located to tight mechanism cover that expands, and tight mechanism expands includes that first tight mechanism, the second expands tight mechanism and first supporting block, and first tight mechanism and the second that expands are located the opposite both sides of first supporting block on the axial direction, and first tight mechanism and the contact of pneumatic distributor head expand, and the second expands tight mechanism and disk body contact, and the tight mechanism that expands of second is located between disk body and first supporting block. When the combined type group is used for assembling the expansion core tool, the expansion mechanism stretches into the first pipe fitting and the second pipe fitting, the air cylinder drives the air rod to move along the axial direction to drive the pneumatic distribution head to move close to the disc body, so that the first expansion mechanism is driven to radially move outwards relative to the first supporting block and expand the first pipe fitting, and the second expansion mechanism is driven to radially move outwards relative to the first supporting block and expand the second pipe fitting.
Description
Technical Field
The application relates to the field of automation equipment, in particular to a combined assembly core expansion tool.
Background
Generally, butt welding of two sections of pipe fittings needs to be carried out in advance by group spot welding, and welding can be carried out under the condition that space areas on the back of a welding line are required to be additionally provided with plugs at two ends or a back dragging cover is inflated. Wrong variables and gaps after assembly can not meet the requirements of butt welding quality easily, and the area effect of back gas protection is poor, so that the welded pipe fitting is frequently reworked and repaired or scrapped due to out-of-tolerance.
Disclosure of Invention
An object of this application provides a combination formula group that concentricity required when can keeping two pipe fittings welding is to bloated core frock.
The utility model provides a modular group is to core frock that expands, it includes:
the driving mechanism comprises an air cylinder, an air rod and a pneumatic distribution head, and the air cylinder and the pneumatic distribution head are respectively connected to two opposite sides of the air rod in the axial direction;
the pneumatic distribution device comprises a guide mechanism, a cylinder, a pneumatic distribution head and a pneumatic control mechanism, wherein the guide mechanism comprises a disc body and a guide shaft, the guide mechanism is provided with a shaft hole which penetrates through the disc body and the guide shaft along the axial direction, the cylinder is fixed on the disc body, part of the pneumatic rod is positioned in the shaft hole, the pneumatic distribution head is connected with the pneumatic rod, and the pneumatic distribution head is positioned outside the shaft hole; and
the expansion mechanism is sleeved on the guide shaft and comprises a first expansion mechanism, a second expansion mechanism and a first supporting block, the first expansion mechanism and the second expansion mechanism are positioned on two opposite sides of the first supporting block in the axial direction, the first expansion mechanism is contacted with the pneumatic distribution head, the second expansion mechanism is contacted with the disc body, and the second expansion mechanism is positioned between the disc body and the first supporting block;
the modular group is to bloated core frock during operation, the tight mechanism that expands stretches into inside first pipe fitting and the second pipe fitting, cylinder drive gas pole along axial motion drives pneumatic distribution head to being close to the motion of disk body to drive the first tight mechanism that expands and radially outwards move and expand tight first pipe fitting relative first supporting block, and then drive the second and expand tight mechanism and radially outwards move and expand tight second pipe fitting relative first supporting block.
Compared with the prior art, this application combination formula group is to bloated core frock during operation, it is inside that tight mechanism stretches into first pipe fitting and second pipe fitting to expand, cylinder drive gas pole along axial motion, drive pneumatic distribution head to being close to the disk body motion to drive first tight mechanism of expanding radial outside motion of first supporting block and the tight first pipe fitting of expanding relatively, and then drive the second tight mechanism of expanding radial outside motion of first supporting block and the tight second pipe fitting of expanding relatively, thereby keep the concentricity requirement of first pipe fitting and second pipe fitting, satisfy manual welding or automatic weld requirement.
Furthermore, the expansion mechanism comprises a second supporting block and a third expansion mechanism, the first end of the third expansion mechanism is in contact with the first supporting block, the second end of the third expansion mechanism is in contact with the second supporting block, the second supporting block is clamped between the second expansion mechanism and the third expansion mechanism, and the first supporting block is clamped between the first expansion mechanism and the second expansion mechanism.
Further, each of the first expanding mechanism, the second expanding mechanism and the third expanding mechanism comprises an expanding mandrel, a plurality of expanding blocks and a coil spring, the expanding mandrel comprises a circular ring part and a plurality of petal parts distributed along the circumferential direction of the circular ring part, a first groove part is arranged between every two adjacent petal parts, the expanding blocks are respectively located in the corresponding first groove parts, each petal part is provided with a second groove part extending around the circumferential direction of the petal part, each expanding block is provided with a third groove part extending around the circumferential direction of the expanding block, the third groove parts are circumferentially aligned with the second groove parts, and the coil spring is contained in the third groove parts and the second groove parts.
Further, the pneumatic distribution head includes end plate and barrel, the gas pole has the part and is located the section of thick bamboo intracavity of barrel, the barrel includes the section of thick bamboo portion of being connected with the end plate and keeps away from the tip portion that the end plate extended from the section of thick bamboo portion, the tip portion includes first inclined plane, first bloated tight mechanism includes the second inclined plane, first inclined plane and second inclined plane cooperate to the guiding axle is the benchmark, the second inclined plane is located the outside of first inclined plane.
Further, the first expansion mechanism comprises a third inclined surface, the first supporting block comprises a fourth inclined surface, the third inclined surface is matched with the fourth inclined surface, the guide shaft is used as a reference, and the third inclined surface is located on the outer side of the fourth inclined surface.
Further, the first supporting block comprises a fifth inclined surface, the third expansion mechanism comprises a sixth inclined surface, the fifth inclined surface is matched with the sixth inclined surface, the guide shaft is used as a reference, and the sixth inclined surface is located on the outer side of the fifth inclined surface.
Further, the third expansion mechanism comprises a seventh inclined surface, the second supporting block comprises an eighth inclined surface, the seventh inclined surface and the eighth inclined surface are matched, the seventh inclined surface is located on the outer side of the eighth inclined surface based on the guide shaft.
Further, the second supporting block comprises a ninth inclined surface, the second expansion mechanism comprises a tenth inclined surface, the ninth inclined surface and the tenth inclined surface are matched, the guide shaft is used as a reference, and the tenth inclined surface is located on the outer side of the ninth inclined surface.
Further, the second expansion mechanism comprises an eleventh inclined surface, the disc body comprises a twelfth inclined surface, the eleventh inclined surface and the twelfth inclined surface are matched, the eleventh inclined surface is located on the outer side of the twelfth inclined surface based on the guide shaft.
Further, the cross sections of the first supporting block and the second supporting block are triangular;
the tight dabber length of expanding of the tight mechanism of third is greater than the tight dabber length of expanding of the tight mechanism of first expanding, the tight dabber length of expanding of the tight mechanism of third is greater than the tight dabber length of expanding of the tight mechanism of second expanding, the tight dabber cover of expanding of the tight mechanism of third is equipped with two coil spring, the tight dabber of expanding of the tight mechanism of first expanding and second is equallyd divide and is do not overlapped and be equipped with a coil spring.
Drawings
Fig. 1 is a perspective view of a combined assembly core expansion tool and a pipe fitting according to an embodiment of the present application.
Fig. 2 is an exploded view of the combined assembly core expansion tool and the pipe fitting according to an embodiment of the application.
Fig. 3 is a perspective view of a combined assembly core expanding tool according to an embodiment of the present application.
Fig. 4 is an exploded view of a combined assembly core expanding tool according to an embodiment of the present application.
Fig. 5 is an exploded view of a part of a combined assembly core expanding tool according to an embodiment of the present application.
Fig. 6 is an exploded view of a part of a combined assembly core expanding tool according to an embodiment of the present application.
Fig. 7 is a sectional view of a combined assembly core expanding tool according to an embodiment of the present application.
Description of the main elements in the figures:
the combined assembly core expansion tool 100;
a driving mechanism 10, an air cylinder 11, an air rod 12, a pneumatic distribution head 13, an end plate 131, a cylinder body 132, a cylinder part 133, a tip part 134, a first inclined surface 135, a cylinder cavity 136,
the guide mechanism 20, the tray body 21, the twelfth inclined surface 211, the step 212, the mounting groove 213, the guide shaft 22, the shaft hole 23,
the expansion mechanism 30, the first expansion mechanism 31, the second inclined surface 311, the third inclined surface 312, the second expansion mechanism 32, the tenth inclined surface 321, the eleventh inclined surface 322, the third expansion mechanism 33, the sixth inclined surface 331, the seventh inclined surface 332, the first support block 34, the fourth inclined surface 341, the fifth inclined surface 342, the second support block 35, the eighth inclined surface 351, the ninth inclined surface 352, the expansion mandrel 36, the circular ring 361, the flap portion 362, the first groove portion 363, the second groove portion 364, the expansion block 37, the third groove portion 371, the coil spring 38, and the locking pin 39;
a fixed tray 40;
a first pipe member 91, a second pipe member 92.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; "plurality" means two or more than two. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.
The following describes exemplary embodiments of the present application in detail with reference to the drawings. The features of the following examples and embodiments can be supplemented or combined with each other without conflict.
The application relates to a combined assembly core expansion tool 100 which is used for solving the problems of assembly expansion support, welding protection and workpiece cooling during butt welding of one or more groups of two sections of pipe fittings, does not need a tack welding process, keeps the requirement on the concentricity of pipe butt joint, and improves the quality of butt welding seams.
As shown in fig. 1 to 7, a combined assembly core expanding tool 100 includes: a driving mechanism 10, a guiding mechanism 20, an expansion mechanism 30 and a fixed disc 40.
The driving mechanism 10 includes an air cylinder 11, an air rod 12 and a pneumatic distribution head 13, wherein the air cylinder 11 and the pneumatic distribution head 13 are respectively connected to two opposite sides of the air rod 12 in the axial direction.
The guide mechanism 20 comprises a disc body 21 and a guide shaft 22, the guide mechanism 20 is provided with a shaft hole 23 penetrating through the disc body 21 and the guide shaft 22 along the axial direction, the air cylinder 11 is fixed on the disc body 21, the air rod 12 is provided with a part positioned in the shaft hole 23, the pneumatic distribution head 13 is connected with the air rod 12, and the pneumatic distribution head 13 is positioned outside the shaft hole 23.
The front end of the disc body 21 is connected to the guide shaft 22, and the front end of the disc body 21 includes a plurality of steps 212. The rear end of the tray body 21 is provided with an installation groove 213, the fixed tray 40 is installed and accommodated in the installation groove 213, the cylinder 11 is fixed to the fixed tray 40, the fixed tray 40 is fixed to the tray body 21 by means of bolts or the like, and the cylinder 11 is indirectly fixed to the tray body 21.
The guide shaft 22 is sleeved with the expansion mechanism 30, the expansion mechanism 30 comprises a first expansion mechanism 31, a second expansion mechanism 32 and a first supporting block 34, the first expansion mechanism 31 and the second expansion mechanism 32 are located on two opposite sides of the first supporting block 34 in the axial direction, the first expansion mechanism 31 is in contact with the pneumatic distribution head 13, the second expansion mechanism 32 is in contact with the disc body 21, and the second expansion mechanism 32 is located between the disc body 21 and the first supporting block 34.
When the combined type pairing core expansion tool 100 works, the expansion mechanism 30 extends into the first pipe fitting 91 and the second pipe fitting 92, the air cylinder 11 drives the air rod 12 to move along the axial direction to drive the pneumatic distribution head 13 to move towards the position close to the disc body 21, so that the first expansion mechanism 31 is driven to move radially outwards relative to the first supporting block 34 and expand the first pipe fitting 91, and the second expansion mechanism 32 is driven to move radially outwards relative to the first supporting block 34 and expand the second pipe fitting 92.
The second pipe member 92 is a valve body of the fluid control valve, and the first pipe member 91 is a nipple for welding with the valve body. The second tube 92 is cylindrical and the first tube 91 is straight. In some embodiments, both lateral sides of the second tube 92 require welding of the first tube 91.
The expansion mechanism 30 includes a second supporting block 35 and a third expansion mechanism 33, a first end of the third expansion mechanism 33 is in contact with the first supporting block 34, and a second end of the third expansion mechanism 33 is in contact with the second supporting block 35. The second supporting block 35 is clamped between the second expansion mechanism 32 and the third expansion mechanism 33, and the first supporting block 34 is clamped between the third expansion mechanism 33 and the first expansion mechanism 31.
Each of the first expansion mechanism 31, the second expansion mechanism 32 and the third expansion mechanism 33 includes an expansion mandrel 36, a plurality of expansion blocks 37, a coil spring 38 and a locking pin 39, the expansion mandrel 36 includes a circular ring portion 361 and a plurality of petal portions 362 uniformly distributed along the circumferential direction of the circular ring portion 361, a first groove portion 363 is provided between two adjacent petal portions 362, and the plurality of expansion blocks 37 are respectively located in the corresponding first groove portions 363. The flap portion 362 has a second groove portion 364 extending around the circumferential direction of the flap portion 362, the expansion block 37 has a third groove portion 371 extending around the circumferential direction of the expansion block 37, the third groove portion 371 is circumferentially aligned with the second groove portion 364, and the coil spring 38 is accommodated in the third groove portion 371 and the second groove portion 364. The coil spring 38 can clamp the expansion block 37 in the first groove portion 363, the expansion block 37 outwards expands the coil spring 38 to expand the first pipe 91 and the second pipe 92 under the driving of the first supporting block 34 and the second supporting block 35, and the coil spring 38 clamps the expansion block 37 in the first groove portion 363 under the action of resilience force when the driving force is lost. The locking pin 39 limits the position of movement of the coil spring 38 to avoid over-tightening of the coil spring 38.
The pneumatic dispensing head 13 includes an end plate 131 and a cylinder 132, the air shaft 12 having a portion positioned within a cylinder cavity 136 of the cylinder 132, the cylinder 132 including a cylinder portion 133 connected to the end plate 131 and a tip portion 134 extending from the cylinder portion 133 away from the end plate 131. The tip portion 134 includes a first inclined surface 135, and the first expansion mechanism 31 includes a second inclined surface 311, the first inclined surface 135 and the second inclined surface 311 cooperating with each other, with the guide shaft 22 being a reference, and the second inclined surface 311 being located outside the first inclined surface 135.
The first expansion mechanism 31 includes a third inclined surface 312, the first support block 34 includes a fourth inclined surface 341, and the third inclined surface 312 and the fourth inclined surface 341 are engaged with each other such that the third inclined surface 312 is located outside the fourth inclined surface 341 with respect to the guide shaft 22.
The first support block 34 includes a fifth inclined surface 342, the third expansion mechanism 33 includes a sixth inclined surface 331, the fifth inclined surface 342 and the sixth inclined surface 331 are engaged with each other, and the sixth inclined surface 331 is located outside the fifth inclined surface 342 with reference to the guide shaft 22.
The third expansion mechanism 33 includes a seventh inclined surface 332, the second support block 35 includes an eighth inclined surface 351, the seventh inclined surface 332 and the eighth inclined surface 351 are engaged with each other, and the seventh inclined surface 332 is located outside the eighth inclined surface 351 with respect to the guide shaft 22.
The second supporting block 35 includes a ninth inclined surface 352, the second expansion mechanism 32 includes a tenth inclined surface 321, the ninth inclined surface 352 and the tenth inclined surface 321 are engaged with each other, and the tenth inclined surface 321 is located outside the ninth inclined surface 352 with respect to the guide shaft 22.
The second expansion mechanism 32 includes an eleventh inclined surface 322, the tray body 21 includes a twelfth inclined surface 211, the eleventh inclined surface 322 and the twelfth inclined surface 211 are matched, and the eleventh inclined surface 322 is positioned outside the twelfth inclined surface 211 with respect to the guide shaft 22.
The first and second support blocks 34 and 35 have a triangular cross section.
The length of the expansion mandrel 36 of the third expansion mechanism 33 is greater than that of the expansion mandrel 36 of the first expansion mechanism 31, the length of the expansion mandrel 36 of the third expansion mechanism 33 is greater than that of the expansion mandrel 36 of the second expansion mechanism 32, the expansion mandrel 36 of the third expansion mechanism 33 is sleeved with two coil springs 38, and the expansion mandrels 36 of the first expansion mechanism 31 and the second expansion mechanism 32 are respectively sleeved with one coil spring 38. This arrangement facilitates expansion of the second tube member 92 for longer relative to the transverse length of the first tube member 91.
When the combined type pairing core expansion tool 100 works, the expansion mechanism 30 extends into the first pipe fitting 91 and the second pipe fitting 92, the air cylinder 11 drives the air rod 12 to move axially to drive the pneumatic distribution head 13 to move towards the position close to the disc body 21, so that the first expansion mechanism 31 is driven to move radially outwards relative to the first supporting block 34 and the pneumatic distribution head 13 and expand the first pipe fitting 91, the third expansion mechanism 33 is driven to move radially outwards relative to the first supporting block 34 and the second supporting block 34 and expand the second pipe fitting 92, and the second expansion mechanism 32 is further driven to move radially outwards relative to the second supporting block 35 and expand the other first pipe fitting 91 under the support of the disc body 21. This can be achieved in one work to expand two first pipe members 91 and one second pipe member 92 at the same time, thereby improving the production efficiency.
The utility model provides a modular group is to tight frock of expanding, through first tight mechanism 31 that expands, the tight mechanism 32 of second and the tight mechanism 33 of third expansion realize the tight independent control that expands, have back gas protection and the radiating frock of circulative cooling, realize that a set of or multiunit pipe fitting is automatic group simultaneously to, keep first pipe fitting 91 and second pipe fitting 92 concentricity requirement, satisfy manual welding or automatic weld requirement.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and within the scope of the present invention.
Claims (10)
1. The utility model provides a modular group is to core frock that expands which characterized in that includes:
the driving mechanism comprises an air cylinder, an air rod and a pneumatic distribution head, and the air cylinder and the pneumatic distribution head are respectively connected to two opposite sides of the air rod in the axial direction;
the pneumatic distribution device comprises a guide mechanism, a cylinder, a pneumatic distribution head and a pneumatic control mechanism, wherein the guide mechanism comprises a disc body and a guide shaft, the guide mechanism is provided with a shaft hole which penetrates through the disc body and the guide shaft along the axial direction, the cylinder is fixed on the disc body, part of the pneumatic rod is positioned in the shaft hole, the pneumatic distribution head is connected with the pneumatic rod, and the pneumatic distribution head is positioned outside the shaft hole; and
the expansion mechanism is sleeved on the guide shaft and comprises a first expansion mechanism, a second expansion mechanism and a first supporting block, the first expansion mechanism and the second expansion mechanism are positioned on two opposite sides of the first supporting block in the axial direction, the first expansion mechanism is contacted with the pneumatic distribution head, the second expansion mechanism is contacted with the disc body, and the second expansion mechanism is positioned between the disc body and the first supporting block;
the modular group is to bloated core frock during operation, the tight mechanism that expands stretches into inside first pipe fitting and the second pipe fitting, cylinder drive gas pole along axial motion drives pneumatic distribution head to being close to the motion of disk body to drive the first tight mechanism that expands and radially outwards move and expand tight first pipe fitting relative first supporting block, and then drive the second and expand tight mechanism and radially outwards move and expand tight second pipe fitting relative first supporting block.
2. The combined assembly core expansion tool of claim 1, wherein: the expansion mechanism comprises a second supporting block and a third expansion mechanism, the first end of the third expansion mechanism is in contact with the first supporting block, the second end of the third expansion mechanism is in contact with the second supporting block, the second supporting block is clamped between the second expansion mechanism and the third expansion mechanism, and the first supporting block is clamped between the first expansion mechanism and the second expansion mechanism.
3. The combined assembly core expansion tool of claim 2, wherein: each of the first expanding mechanism, the second expanding mechanism and the third expanding mechanism comprises an expanding mandrel, a plurality of expanding blocks and a coil spring, the expanding mandrel comprises a circular ring part and a plurality of petal parts distributed along the circumferential direction of the circular ring part, a first groove part is arranged between every two adjacent petal parts, the expanding blocks are respectively positioned in the corresponding first groove parts, the petal parts are provided with second groove parts extending along the circumferential direction of the petal parts, the expanding blocks are provided with third groove parts extending along the circumferential direction of the expanding blocks, the third groove parts are aligned with the second groove parts in the circumferential direction, and the coil spring is contained in the third groove parts and the second groove parts.
4. The combined assembly core expansion tool of claim 3, wherein: pneumatic distribution head includes end plate and barrel, the gas pole has the section to be located the section of thick bamboo intracavity of barrel, the barrel includes the cylindric portion of being connected with the end plate and keeps away from the tip portion that the end plate extends from the cylindric portion, the tip portion includes first inclined plane, first tight mechanism that expands includes the second inclined plane, first inclined plane and the cooperation of second inclined plane use the guiding axle as the benchmark, the second inclined plane is located the outside of first inclined plane.
5. The combined assembly core expansion tool of claim 4, wherein: first tight mechanism that expands includes the third inclined plane, first supporting block includes the fourth inclined plane, the cooperation of third inclined plane and fourth inclined plane to the guiding axle is the benchmark, the third inclined plane is located the outside on fourth inclined plane.
6. The combined assembly core expansion tool of claim 5, wherein: the first supporting block comprises a fifth inclined surface, the third expansion mechanism comprises a sixth inclined surface, the fifth inclined surface is matched with the sixth inclined surface to use the guide shaft as a reference, and the sixth inclined surface is positioned on the outer side of the fifth inclined surface.
7. The combined assembly core expansion tool of claim 6, wherein: the third expansion mechanism comprises a seventh inclined surface, the second supporting block comprises an eighth inclined surface, the seventh inclined surface is matched with the eighth inclined surface, the seventh inclined surface is positioned on the outer side of the eighth inclined surface by taking the guide shaft as a reference.
8. The combined assembly core expansion tool of claim 7, wherein: the second supporting block comprises a ninth inclined surface, the second tensioning mechanism comprises a tenth inclined surface, the ninth inclined surface is matched with the tenth inclined surface, the guide shaft is used as a reference, and the tenth inclined surface is located on the outer side of the ninth inclined surface.
9. The combined assembly core expansion tool of claim 8, wherein: the second expansion mechanism comprises an eleventh inclined surface, the disc body comprises a twelfth inclined surface, the eleventh inclined surface is matched with the twelfth inclined surface, the eleventh inclined surface is located on the outer side of the twelfth inclined surface based on the guide shaft.
10. The combined assembly core expansion tool of claim 9, wherein: the cross sections of the first supporting block and the second supporting block are triangular;
the tight dabber length of expanding of the tight mechanism of third is greater than the tight dabber length of expanding of the tight mechanism of first expanding, the tight dabber length of expanding of the tight mechanism of third is greater than the tight dabber length of expanding of the tight mechanism of second expanding, the tight dabber cover of expanding of the tight mechanism of third is equipped with two coil spring, the tight dabber of expanding of the tight mechanism of first expanding and second is equallyd divide and is do not overlapped and be equipped with a coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413651.3A CN113510432A (en) | 2021-04-16 | 2021-04-16 | Combined assembly core expansion tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110413651.3A CN113510432A (en) | 2021-04-16 | 2021-04-16 | Combined assembly core expansion tool |
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| CN113510432A true CN113510432A (en) | 2021-10-19 |
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| CN202110413651.3A Pending CN113510432A (en) | 2021-04-16 | 2021-04-16 | Combined assembly core expansion tool |
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| KR20200000293U (en) * | 2018-07-27 | 2020-02-05 | 두산중공업 주식회사 | Tube sheet orbital welder head |
| CN208913943U (en) * | 2018-10-15 | 2019-05-31 | 武汉联航机电有限公司 | A kind of expansion mechanism |
| CN110238601A (en) * | 2019-05-17 | 2019-09-17 | 陕西飞机工业（集团）有限公司 | A kind of anti-deformation plug for the welding of two straight catheters |
| CN112122870A (en) * | 2020-09-15 | 2020-12-25 | 广州红尚机械制造有限公司 | Steel pipe welding positioning tool |
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