CN105127656A - Positioning fixture and storage case girth welding equipment - Google Patents
Positioning fixture and storage case girth welding equipment Download PDFInfo
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- CN105127656A CN105127656A CN201510661698.6A CN201510661698A CN105127656A CN 105127656 A CN105127656 A CN 105127656A CN 201510661698 A CN201510661698 A CN 201510661698A CN 105127656 A CN105127656 A CN 105127656A
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- Prior art keywords
- hold
- section bar
- cylinder
- positioning fixture
- down mechanism
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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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Abstract
The invention provides a positioning fixture for positioning a circular ring and a section frame at the bottom of a storage case. The positioning fixture comprises a base, a mould fixed on the base and used for positioning the circular ring and the section frame from the inner side, a first pressing assembly used for pressing the circular ring from the outer side and a second pressing assembly used for pressing the section frame; the first pressing assembly comprises a first pressing ring sleeving the circular ring from the outer side and a first pressing mechanism acting on the first pressing ring; the second pressing assembly comprises a second pressing ring sleeving the section frame from the outer side, a second pressing mechanism acting on the second pressing ring, and a third pressing mechanism used for pressing the section frame inwards from the outer side; the first pressing mechanism, the second pressing mechanism and the third pressing mechanism are fixed on the base and positioned on the outer side of the mould. The positioning fixture has good positioning effect on the circular ring and the section frame, cannot affect welding, and can provide guarantee for achieving high-quality welding.
Description
Technical field
The present invention relates to Rocket tank Automation of Welding field, particularly relate to a kind of store-vessel bottom circular seam welding device of locating the annulus of store-vessel bottom and the positioning fixture of frame of section bar and there is this positioning fixture.
Background technology
The rocket body structure of carrier rocket is formed primarily of parts such as propellant tank, riveted joint cabin section, radome fairings.Wherein, propellant tank (abbreviation tank) is a kind of large scale, thin-wall high-strength Welded structure, as the main force support structure of carrier rocket, be structure member maximum in rocket body structure and the critical component affecting carrier rocket safety and reliability, account for 60% of filled vehicle mass, whole rocket length 2/3.
Tank is formed by store-vessel bottom and cylinder section welding equipment again: cylinder section is formed by wallboard welding; The store-vessel bottom of rocket is formed by melon lobe, top cover, frame of section bar welding; Wherein 6 melon lobes are by forming annulus after 6 longitudinal seam weldings, and the bottom of annulus and frame of section bar are by girth welding, and top and the top cover of annulus also pass through girth welding.
Because store-vessel bottom is revolution ellipsoid, total longitudinal joint 6, circumferential weld 2, material is 2A14 aluminium alloy, for large thin-wall component, compared with ferrous metal, 2A14 aluminum alloy materials thermal stress is large, easily distortion after welding, so will when at the bottom of case, each weld parts be in aggregates, must locate reliable, clamping firm, could weld industry in allowed band, therefore welding tooling difficulty.In welding process, require that positioning fixture has good rigidity, the welding edge of weld seam must be reliable fixing, accurately aligns, mustn't occur the phenomenon such as misalignment and obvious distortion.But current large-scale steel structure automatic welding equipment mainly comprises vertical seam, transverse joint, angle seam automatic welding manipulator, and these equipment all cannot directly apply to the welding of tank.
In view of this, be necessary to be improved existing positioning fixture and store-vessel bottom circular seam welding device, to solve the problem.
Summary of the invention
The object of the present invention is to provide a kind of store-vessel bottom circular seam welding device of locating the annulus of store-vessel bottom and the positioning fixture of frame of section bar and there is this positioning fixture.
For achieving the above object, the invention provides a kind of for locating the annulus of store-vessel bottom and the positioning fixture of frame of section bar during store-vessel bottom girth welding, comprising pedestal in the form of a ring, be fixed on described pedestal and locate from inner side described annulus and described frame of section bar mould tire, hold down assembly from first of annulus described in side compression annulus and hold down assembly from second of frame of section bar described in side compression described frame of section bar; It is characterized in that: described first holds down assembly comprises the first pressure ring be placed on from outside described annulus, act on described first pressure ring to make described first pressure ring that described annulus is pressed the first hold-down mechanism on described mould tire; Described second holds down assembly comprises the second pressure ring be placed on from outside described frame of section bar, act on described second pressure ring to make described second pressure ring described frame of section bar be pressed the second hold-down mechanism on described counterdie tire, compress the 3rd hold-down mechanism of described frame of section bar in lateral; Described first hold-down mechanism, the second hold-down mechanism and the 3rd hold-down mechanism to be fixed on described pedestal and to be positioned at outside described mould tire.
As a further improvement on the present invention, described mould tire comprise be fixed on described pedestal for locate described frame of section bar counterdie tire, be positioned at above described counterdie tire for locating the melon lobe mould tire of described annulus; Arrange in step between described counterdie tire and described melon lobe mould tire, and the top end diameter of described counterdie tire is greater than the diameter of described melon lobe mould tire bottom.
As a further improvement on the present invention, described first pressure ring comprise can fit tightly the first clip circle of described ring textures, the first trim ring outwards protruded out from the first clip circle top, be positioned at below described first trim ring for upwards support the annular of described first trim ring bracing ring, be arranged at intervals on described first clip circle to support some back-up blocks of described bracing ring from downside.
As a further improvement on the present invention, described first hold-down mechanism comprises the first cylinder block, be fixed on the first cylinder in described first cylinder block, be fixed on the gripper shoe on described first cylinder block, be positioned at described gripper shoe and deviate from contiguous block on described first cylinder block one side, the first pressure arm be connected near the first cylinder rod side pivotable of described first cylinder with described contiguous block, the connecting rod be connected towards the projection pivotable that the side deviating from described gripper shoe protrudes out with described contiguous block, be located on described connecting rod for controlling the confinement block of described first pressure arm pivoting angle, described connecting rod is connected with described first cylinder rod, and described first cylinder rod can drive the relatively described contiguous block pivotable of described connecting rod, described gripper shoe is fixed on described pedestal.
As a further improvement on the present invention, described first hold-down mechanism comprises the first cylinder block, be fixed on the first cylinder in described first cylinder block, be fixed on the sliding sleeve on described first cylinder block, be fixed on the supporting leg on described sliding sleeve, to be connected away from described sliding sleeve one end with described supporting leg and the gripper shoe extended towards the first cylinder rod of described first cylinder, be positioned at described gripper shoe and deviate from contiguous block on described supporting leg one side, the first pressure arm be connected near the side pivotable of described first cylinder rod with described contiguous block, the projection of the triangular shape that described contiguous block protrudes out towards the side that deviates from described gripper shoe near the side of described first cylinder rod is clamped and what is connected with described projection pivotable is the connecting rod of L shape from both sides, be located on described connecting rod for controlling the confinement block of described first pressure arm pivoting angle.
As a further improvement on the present invention, described second pressure ring comprises and can fit tightly at the second clip circle of described frame of section bar outer surface, the second trim ring of outwards protruding out from the second clip circle top.
As a further improvement on the present invention, described second hold-down mechanism comprise the second cylinder block be fixed on described pedestal, the second cylinder be positioned on described second cylinder block, the second pressure arm be pivotally connected on described second cylinder block; Second cylinder rod of described second cylinder drives described second pressure arm relative to described second cylinder block pivotable, and then makes described second pressure arm compress described second pressure ring.
As a further improvement on the present invention, described 3rd hold-down mechanism comprise action bars, by described action bars drive with near or away from described frame of section bar drive rod, be positioned at the jacking block that described drive rod can push up and be pressed on outside described frame of section bar.
As a further improvement on the present invention, described pedestal is provided with some holders at the outside spacers of described counterdie tire bottom, fixing hole is formed in the middle of every two adjacent holders, described first hold-down mechanism is positioned at described fixing hole place, and described first hold-down mechanism is fixed on adjacent two holders of the described fixing hole of formation; Described second hold-down mechanism and the 3rd hold-down mechanism are located on described holder.
For achieving the above object, present invention also offers the store-vessel bottom circular seam welding device of a kind of annulus for welding store-vessel bottom and frame of section bar, comprising the described annulus in location and the positioning fixture of described frame of section bar, the welder welding the circumferential weld of described annulus and described frame of section bar, the motor that drives described positioning fixture to rotate.
The invention has the beneficial effects as follows: positioning fixture of the present invention holds down assembly respectively by first and second holds down assembly and locate annulus and frame of section bar, good positioning effect with coordinating of mould tire.Described first the first hold-down mechanism held down assembly acts on described first pressure ring to make described first pressure ring press on described mould tire by described annulus; Force area is large, and uniform force application, described Deformed ring can be prevented while locating described annulus well.Described second holds down assembly not to be exerted a force the described frame of section bar in location from different directions by the second hold-down mechanism and the 3rd hold-down mechanism, good positioning effect, yielding and do not affect welding, for the welding realizing better quality provides guarantee.
Accompanying drawing explanation
Fig. 1 is the stereoscopic mechanism schematic diagram of positioning fixture of the present invention.
Fig. 2 is that Fig. 1 removes first and to hold down assembly and the second structural representation held down assembly.
Fig. 3 is the structural representation of the first pressure ring of the present invention.
Fig. 4 is that Fig. 3 is in the schematic diagram of another angle.
Fig. 5 is the sectional view of Fig. 4 along B-B direction.
Fig. 6 is the structural representation of the second pressure ring of the present invention.
Fig. 7 is the sectional view of Fig. 6 along A-A direction.
Fig. 8 is the partial enlarged drawing of encircled portion in Fig. 7.
Fig. 9 is the partial enlarged drawing of encircled portion in Fig. 1.
Figure 10 is the structural representation of the first the first hold-down mechanism.
Figure 11 is the structural representation of the second first hold-down mechanism.
Figure 12 is the structural representation of the second hold-down mechanism and the 3rd hold-down mechanism.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearly, describe the present invention below in conjunction with the drawings and specific embodiments.
Refer to shown in Fig. 1 ~ Figure 12, in order to weld described annulus (not shown) and frame of section bar (not shown) better, the invention provides a kind of store-vessel bottom circular seam welding device, comprise the described annulus in location and the positioning fixture 100 of described frame of section bar, the motor (not shown) driving described positioning fixture 100 to rotate, the welder (not shown) that welds the circumferential weld of described annulus and described frame of section bar.During use, annulus and frame of section bar are fixed on described positioning fixture 100, and positioning fixture 100 rotates according to predetermined welding track, and welder carries out girth welding from outside.
Refer to shown in Fig. 1, Fig. 2 and Fig. 9, described positioning fixture 100 comprise substantially pedestal 10 in the form of a ring, be positioned at ring that described pedestal 10 formed in the middle of centre mount 20, be fixed on described pedestal 10 and locate from inner side the annular of described annulus and described frame of section bar mould tire 30, from described centre mount 20 to external radiation extension with some brace rods 40 of centre mount described in support and connection 20 and described mould tire 30, to hold down assembly 50 and hold down assembly 60 from second of frame of section bar described in side compression described frame of section bar from first of annulus described in side compression annulus.
First the described annulus of welding is enclosed within described mould tire 30 top during use, then frame of section bar to be welded is enclosed within the bottom of mould tire 30; After described annulus is alignd with described frame of section bar, hold down assembly respectively by first and 50 and second to hold down assembly the described annulus of 60 compression and frame of section bar, be convenient to accurate welding.
Refer to shown in Fig. 2, described mould tire 30 comprise be fixed on described pedestal 10 for locate described frame of section bar counterdie tire 31, be positioned at above described counterdie tire 31 for locating the melon lobe mould tire 32 of described annulus.The vertebra shape that described counterdie tire 31 successively decreases from the bottom up gradually for diameter, closes with the matching form inside described frame of section bar; And the bottom of described counterdie tire 31 is arranged at intervals with the brace table 311 protruded out laterally for supporting described frame of section bar.The vertebra shape that described melon lobe mould tire 32 diametrically successively decreases from the bottom up gradually, closes with the matching form inside described annulus.Arrange in step between described counterdie tire 31 and described melon lobe mould tire 32, and the top end diameter of described counterdie tire 31 is greater than the diameter of described melon lobe mould tire 32 bottom.
Refer to shown in Fig. 1, Fig. 3 ~ Fig. 5, Fig. 9 ~ Figure 11, described first holds down assembly 50 comprises the first pressure ring 51 be placed on from outside described annulus, act on described first pressure ring 51 to make described first pressure ring 51 that described annulus is pressed the first hold-down mechanism 52 on described melon lobe mould tire 32.
Refer to shown in Fig. 1, Fig. 3 ~ Fig. 5, described first pressure ring 51 comprise shape and described annulus match and can fit tightly the first clip circle 511 of described ring textures, the first trim ring 512 outwards protruded out from the first clip circle 511 top, be positioned at below described first trim ring 512 for upwards support the annular of described first trim ring 512 bracing ring 513, be arranged at intervals on described first clip circle 511 to support some back-up blocks 514 of described bracing ring 513 from downside.When described first pressure ring 51 is enclosed within described annulus, the upper surface of described first trim ring 512 is positioned in same level, described first hold-down mechanism 52 forces in described first trim ring 512 from the top down, described first clip circle 511 is tightly fitted on described annulus, thus described annulus is pressed on described mould tire 30.
Described first pressure ring 51 offers first opening 515, be convenient to described first pressure ring 51 to be sheathed on described annulus.Be enclosed within the outer rear flank of described annulus at described first pressure ring 51, this first opening 515 is fixed by fixtures such as screws, makes described first pressure ring 51 form a complete ring clip on described annulus.Certainly, during without the first opening 515, the first pressure ring 51 still can reach identical effect.
Refer to shown in Fig. 9 ~ Figure 11, described first hold-down mechanism 52 is fixed on described pedestal 10.Particularly, described pedestal 10 is provided with some holders 11 at the outside spacers of described counterdie tire 31 bottom, fixing hole 12 is formed in the middle of every two adjacent holders 11, described first hold-down mechanism 52 is positioned at described fixing hole 12 place, and described first hold-down mechanism 52 is fixed on adjacent two holders 11 of the described fixing hole 12 of formation.
Described first hold-down mechanism 52 comprises the first cylinder block 521, be fixed on the first cylinder 522 in described first cylinder block 521, be fixed on the sliding sleeve 523 on described first cylinder block 521, be fixed on the supporting leg 524 on described sliding sleeve 523, to be connected away from described sliding sleeve 523 one end with described supporting leg 524 and the gripper shoe 525 extended towards the first cylinder rod 5221 of described first cylinder 522, be positioned at described gripper shoe 525 and deviate from contiguous block 526 on described supporting leg 524 1 side, the first pressure arm 527 be connected near the side pivotable of described first cylinder rod 5221 with described contiguous block 526, the projection 5261 and the connecting rod 528 in L shape be connected with described projection 5261 pivotable of being located at the triangular shape that described contiguous block 526 protrudes out near the side of described first cylinder rod 5221 and towards the side deviating from described gripper shoe 525 is clamped from both sides, be located on described connecting rod 528 for controlling the confinement block 529 of described first pressure arm 527 pivoting angle.
Described gripper shoe 525 is provided with the U-shaped opening passed for described first cylinder rod 5221 near the side of described first cylinder rod 5221, this U-shaped opening is corresponding with described fixing hole 12, and the both sides forming the U-shaped opening of described gripper shoe 525 are fixed on adjacent two described holders 11.Described first hold-down mechanism 52 is fixed on described pedestal 10 by described gripper shoe 525, and described first cylinder 522 extends internally obliquely from described pedestal 10.
The long limit of the described connecting rod 528 of L shape is made up of two the connecting rod walls being divided into described projection 5261 both sides, formed in the middle of two connecting rod walls and pass for described first pressure arm 527 and supply the hollow bulb of described first pressure arm 527 activity, two connecting rod walls are connected with described projection 5261 pivotable by pivot away from one end of described minor face, and described confinement block 529 is located at the position near described minor face on described long limit.The minor face of described connecting rod 528 is connected with described first cylinder rod 5221, thus described first cylinder rod 5221 can drive described connecting rod 528 relatively described projection 5261 pivotable, and then by described confinement block 529, pressure is passed to described first pressure arm 527; The pressure that the pressure that described first pressure arm 527 is applied to described first pressure ring 51 exports according to the first cylinder 522 and changing.
In the present embodiment, described first pressure arm 527 is provided with briquetting 5271 away from one end of described projection 5261, when the first cylinder rod 5221 is protruding, described connecting rod 528 relative to described projection 5261 to described briquetting 5271 side pivotable, described confinement block 529 oppresses described first pressure arm 527, and described briquetting 5271 is pressed on described first trim ring 512.First hold-down mechanism 52 compresses described annulus by the first pressure ring 51, and force area is large, and uniform force application can prevent distortion effectively.
In order to described annulus can be fixed better, described positioning fixture 100 is provided with some first hold-down mechanisms 52 be uniformly distributed on described pedestal 10, some described first pressure arms 527 force in described first pressure ring 51 equably, and described annulus is pressed on described melon lobe mould tire 32 by described first pressure ring 51 again; Even if wherein some first pressure arms 527 lift and depart from described first pressure ring 51, the pressure of two adjacent the first pressure arms 527 is also enough to the pressure of the pressure ring ensureing this first pressure arm 527 corresponding position, and described annulus can not misplace, and does not affect welding.In the present embodiment, described pedestal 10 is provided with 24 holders, 11,24 fixing holes 12, and described positioning fixture 100 is provided with 24 the first hold-down mechanisms 52, can effectively locate described annulus.
According to predetermined welding track, the first pressure arm 527 of first hold-down mechanism 52 at place to be welded lifts and departs from described first pressure ring 51, abdicates space and carries out girth welding to welder; After this section of girth welding, this first pressure arm 527 puts down and compresses described first pressure ring 51, and the first pressure arm 527 along the next one first hold-down mechanism 52 of welding track lifts, and by that analogy, completes the welding of whole circumferential weld.
In addition, the first hold-down mechanism 52 of described positioning fixture 100 comprises two kinds: the first as shown in Figure 10, described gripper shoe 525 is rectangle substantially; The second as shown in figure 11, widen near the side of described supporting leg 524 and make whole described gripper shoe 525 T-shaped by described gripper shoe 525, is convenient to install solder skip groove mechanism (not shown); The first first hold-down mechanism 52 and the second first hold-down mechanism 52 interval are fixed on described pedestal 10.
Refer to shown in Fig. 1, Fig. 6 ~ Fig. 9, Figure 12, described second holds down assembly 60 comprises the second pressure ring 61 be placed on from outside described frame of section bar, act on described second pressure ring 61 to make described second pressure ring 61 described frame of section bar be pressed the second hold-down mechanism 62 on described counterdie tire 31, compress the 3rd hold-down mechanism 63 of described frame of section bar in lateral.Described second holds down assembly 60 not to be exerted a force the described frame of section bar in location from different directions by the second hold-down mechanism 62 and the 3rd hold-down mechanism 63, good positioning effect, yielding and do not affect welding, for the welding realizing better quality provides guarantee.
Refer to shown in Fig. 1, Fig. 6 ~ Fig. 9, described second pressure ring 61 comprises shape and described frame of section bar and matches and can fit tightly at the second clip circle 611 of described frame of section bar outer surface, the second trim ring 612 of outwards protruding out from the second clip circle 611 top.When described second pressure ring 61 is enclosed within described frame of section bar, the upper surface of described second trim ring 612 is positioned in same level, described second hold-down mechanism 62 forces in described second trim ring 612 from the top down, and described second clip circle 611 is tightly fitted on described frame of section bar.
Described second pressure ring 61 offers second opening 613, be convenient to described second pressure ring 61 to be sheathed on described frame of section bar.Be enclosed within the outer rear flank of described frame of section bar at described two pressure rings 61, this second opening 613 is fixed by fixtures such as screws, makes described second pressure ring 61 form a complete ring clip on described frame of section bar.Certainly, during without the second opening 613, the second pressure ring 61 still can reach identical effect; In Fig. 6 ~ Fig. 8, not shown second opening 613 of the second pressure ring 61.
Refer to shown in Fig. 9, described second hold-down mechanism 62 and the 3rd hold-down mechanism 63 are all fixed on described pedestal 10.Particularly, described second hold-down mechanism 62 and the 3rd hold-down mechanism 63 are all fixed on described holder 11.
Refer to shown in Figure 12, described second hold-down mechanism 62 comprise be fixed in L shape on described pedestal 10 the second cylinder block 621, be positioned at described second cylinder block 621 is parallel to described holder 11 the second cylinder 622, the second pressure arm 623 of being connected with one side pivotable perpendicular to described pedestal 10 on described second cylinder block 621.Second cylinder rod 6221 of described second cylinder 622 protrudes upward and drives described second pressure arm 623 relative to described second cylinder block 621 pivotable, and then make described second pressure arm 623 compress described second pressure ring 61, second pressure ring 61 described frame of section bar to be pressed on described counterdie tire 31; The pressure that the pressure that described second pressure arm 623 is applied to described second pressure ring 61 exports according to the second cylinder 622 and changing.
In order to described frame of section bar can be fixed better, described positioning fixture 100 is provided with some second hold-down mechanisms 62 be uniformly distributed on described pedestal 10, some described second pressure arms 623 force in described second pressure ring 61 equably, and described frame of section bar is pressed on described counterdie tire 31 by described second pressure ring 61 again; Uniform force and described frame of section bar can not misplace.In the present embodiment, described positioning fixture 100 is provided with 12 the second hold-down mechanisms 62, and each second hold-down mechanism 62, between adjacent two the first hold-down mechanisms 52, often has two the first hold-down mechanisms 52 in the middle of adjacent two the second hold-down mechanisms 62.That is, on institute's holder 11, second hold-down mechanism 62 is fixed with.
3rd hold-down mechanism 63 comprise action bars 631, by described action bars 631 drive with near or away from described frame of section bar drive rod 632, be positioned at the jacking block 633 that described drive rod 632 can push up and be pressed on outside described frame of section bar.Upwards mention described action bars 631, described drive rod 632 moves towards described frame of section bar, and described jacking block 633 inwardly compresses described frame of section bar makes it locate.In the present embodiment, described positioning fixture 100 is provided with 12 the 3rd hold-down mechanisms 63, described 3rd hold-down mechanism 63 is disposed adjacent with described second hold-down mechanism 62, and described 3rd hold-down mechanism 63 is located on same described holder 11 jointly with described second hold-down mechanism 62.
In sum, the present invention is used for positioning fixture 100 pairs of annulus of store-vessel bottom girth welding and the good positioning effect of frame of section bar, and does not affect welding, for the welding realizing better quality provides guarantee.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not depart from the spirit and scope of technical solution of the present invention.
In this description any relevant " the present embodiment ", mean that specific function, structure or a characteristic relevant with embodiment describe and comprise at least one embodiment of the present invention.These phrases appearing at each place of description not necessarily refer to identical embodiment.Further, specific function, structure or the details relevant to any embodiment describe, then think function relevant to other embodiments within the scope of the art, structure or characteristic.
Claims (10)
1. a positioning fixture, for locating the annulus of store-vessel bottom and frame of section bar during store-vessel bottom girth welding, described positioning fixture comprises pedestal in the form of a ring, be fixed on described pedestal and locate from inner side described annulus and described frame of section bar mould tire, hold down assembly from first of annulus described in side compression annulus and hold down assembly from second of frame of section bar described in side compression described frame of section bar; It is characterized in that: described first holds down assembly comprises the first pressure ring be placed on from outside described annulus, act on described first pressure ring to make described first pressure ring that described annulus is pressed the first hold-down mechanism on described mould tire; Described second holds down assembly comprises the second pressure ring be placed on from outside described frame of section bar, act on described second pressure ring to make described second pressure ring described frame of section bar be pressed the second hold-down mechanism on described counterdie tire, compress the 3rd hold-down mechanism of described frame of section bar in lateral; Described first hold-down mechanism, the second hold-down mechanism and the 3rd hold-down mechanism to be fixed on described pedestal and to be positioned at outside described mould tire.
2. positioning fixture according to claim 1, is characterized in that: described mould tire comprise be fixed on described pedestal for locate described frame of section bar counterdie tire, be positioned at above described counterdie tire for locating the melon lobe mould tire of described annulus; Arrange in step between described counterdie tire and described melon lobe mould tire, and the top end diameter of described counterdie tire is greater than the diameter of described melon lobe mould tire bottom.
3. positioning fixture according to claim 1, is characterized in that: described first pressure ring comprise can fit tightly the first clip circle of described ring textures, the first trim ring outwards protruded out from the first clip circle top, be positioned at below described first trim ring for upwards support the annular of described first trim ring bracing ring, be arranged at intervals on described first clip circle to support some back-up blocks of described bracing ring from downside.
4. positioning fixture according to claim 1, it is characterized in that: described first hold-down mechanism comprises the first cylinder block, be fixed on the first cylinder in described first cylinder block, be fixed on the gripper shoe on described first cylinder block, be positioned at described gripper shoe and deviate from contiguous block on described first cylinder block one side, the first pressure arm be connected near the first cylinder rod side pivotable of described first cylinder with described contiguous block, the connecting rod be connected towards the projection pivotable that the side deviating from described gripper shoe protrudes out with described contiguous block, be located on described connecting rod for controlling the confinement block of described first pressure arm pivoting angle, described connecting rod is connected with described first cylinder rod, and described first cylinder rod can drive the relatively described contiguous block pivotable of described connecting rod, described gripper shoe is fixed on described pedestal.
5. positioning fixture according to claim 4, it is characterized in that: described first hold-down mechanism comprises the first cylinder block, be fixed on the first cylinder in described first cylinder block, be fixed on the sliding sleeve on described first cylinder block, be fixed on the supporting leg on described sliding sleeve, to be connected away from described sliding sleeve one end with described supporting leg and the gripper shoe extended towards the first cylinder rod of described first cylinder, be positioned at described gripper shoe and deviate from contiguous block on described supporting leg one side, the first pressure arm be connected near the side pivotable of described first cylinder rod with described contiguous block, the projection of the triangular shape that described contiguous block protrudes out towards the side that deviates from described gripper shoe near the side of described first cylinder rod is clamped and what is connected with described projection pivotable is the connecting rod of L shape from both sides, be located on described connecting rod for controlling the confinement block of described first pressure arm pivoting angle.
6. positioning fixture according to claim 1, is characterized in that: described second pressure ring comprises and can fit tightly at the second clip circle of described frame of section bar outer surface, the second trim ring of outwards protruding out from the second clip circle top.
7. positioning fixture according to claim 1, is characterized in that: described second hold-down mechanism comprises the second cylinder block be fixed on described pedestal, the second cylinder be positioned on described second cylinder block, the second pressure arm be pivotally connected on described second cylinder block; Second cylinder rod of described second cylinder drives described second pressure arm relative to described second cylinder block pivotable, and then makes described second pressure arm compress described second pressure ring.
8. positioning fixture according to claim 1, is characterized in that: described 3rd hold-down mechanism comprise action bars, by described action bars drive with near or away from described frame of section bar drive rod, be positioned at the jacking block that described drive rod can push up and be pressed on outside described frame of section bar.
9. positioning fixture according to claim 1, it is characterized in that: described pedestal is provided with some holders at the outside spacers of described counterdie tire bottom, fixing hole is formed in the middle of every two adjacent holders, described first hold-down mechanism is positioned at described fixing hole place, and described first hold-down mechanism is fixed on adjacent two holders of the described fixing hole of formation; Described second hold-down mechanism and the 3rd hold-down mechanism are located on described holder.
10. a store-vessel bottom circular seam welding device, for welding annulus and the frame of section bar of store-vessel bottom, described store-vessel bottom circular seam welding device comprises the described annulus in location and the positioning fixture of described frame of section bar, the welder welding the circumferential weld of described annulus and described frame of section bar, the motor that drives described positioning fixture to rotate, it is characterized in that: described positioning fixture is the positioning fixture described in claim 1 ~ 9 any one.
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| CN201510661698.6A CN105127656B (en) | 2015-10-14 | 2015-10-14 | Positioning fixture and store-vessel bottom circular seam welding device |
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| CN201510661698.6A CN105127656B (en) | 2015-10-14 | 2015-10-14 | Positioning fixture and store-vessel bottom circular seam welding device |
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| CN105127656A true CN105127656A (en) | 2015-12-09 |
| CN105127656B CN105127656B (en) | 2017-08-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479184A (en) * | 2015-12-30 | 2016-04-13 | 天津航天长征火箭制造有限公司 | Ellipsoidal tank bottom flange hole milling/flange plate welding assembly |
| CN116475634A (en) * | 2023-04-27 | 2023-07-25 | 佛山市明焱科技有限公司 | Automatic ring welding equipment and ring preparation method |
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| CN116475634B (en) * | 2023-04-27 | 2023-11-21 | 佛山市明焱科技有限公司 | Automatic ring welding equipment and ring preparation method |
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