CN106216905B - A kind of excavator middle frame fluid pressure type umbellate form stretches centering machine - Google Patents
A kind of excavator middle frame fluid pressure type umbellate form stretches centering machine Download PDFInfo
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- CN106216905B CN106216905B CN201610498086.4A CN201610498086A CN106216905B CN 106216905 B CN106216905 B CN 106216905B CN 201610498086 A CN201610498086 A CN 201610498086A CN 106216905 B CN106216905 B CN 106216905B
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- connecting rod
- hydraulic cylinder
- middle frame
- push rod
- connection cover
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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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of flexible centering machine of excavator middle frame fluid pressure type umbellate form, including the piston push rod on hydraulic cylinder and hydraulic cylinder, connecting rod connection cover is provided with the top of piston push rod, no less than two groups telescoping mechanisms are connected with connecting rod connection cover, telescoping mechanism includes the connecting rod one being hinged with connecting rod connection cover, connecting rod one is hinged with connecting rod two away from connecting rod connection cover end, connecting rod three is hinged with push rod away from the end of connecting rod two, push rod has swing rod away from connecting rod three-terminal link, swing rod is provided with branch fastener away from push rod end, support cephalic par is provided with plug, seat ring hole locating rack is provided with branch fastener.Technical solution of the present invention solves excavator middle frame location difficulty phenomenon in welding, overcomes in the prior art, when excavator middle frame welds as caused by artificial manual positioning welding problems of welded quality and the low problem of product qualification rate.
Description
Technical field
The invention belongs to feel relieved, a kind of location structure, more specifically to excavator middle frame welding when the digging that uses
Pick machine middle frame fluid pressure type umbellate form stretches centering machine.
Background technology
Middle frame is the important support part of excavator, both sides connecting band track frame, revolving dial installed above.Therefore, in work
In journey machinery, the technical requirements of welding quality and installation dimension to middle frame are higher.Middle frame processing is had main steps that by
The lower straddle of a structure of an essay, seat ring, plate is stood and upper straddle carries out splice point postwelding and is soldered into entirely again, in order to meet the chi of middle frame
Very little requirement and welding quality, lower straddle, seat ring and the splicing positioning of upper straddle and spot welding position are quite important.At present, middle frame
Welding position fixing process also relies solely on artificial centering, artificial to grasp splicing size, and it splices size and has larger error, in influenceing
The quality and yield rate of a structure of an essay, and installation effectiveness is very low.
The content of the invention
It is an object of the invention to provide a kind of flexible centering machine of excavator middle frame fluid pressure type umbellate form, solves excavator
Middle frame location difficulty phenomenon in welding, overcomes in the prior art, by artificial manual tack welding when excavator middle frame welds
Problems of welded quality and the low problem of product qualification rate caused by connecing.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches centering machine, including hydraulic cylinder and hydraulic pressure
Piston push rod on cylinder, the piston push rod top are provided with connecting rod connection cover, are connected with and are no less than in the connecting rod connection cover
Two groups of telescoping mechanisms, the telescoping mechanism include the connecting rod one being hinged with connecting rod connection cover, and the connecting rod one connects away from connecting rod
Lid end is hinged with connecting rod two, and the connecting rod one is hinged with the centre position of connecting rod two, and described one end of connecting rod two is connected to connecting rod three,
The other end is hinged with fixed column, and the connecting rod three is hinged with push rod away from the end of connecting rod two, and the push rod is away from connecting rod three-terminal link
There is swing rod, the swing rod is provided with branch fastener away from push rod end, and the support cephalic par is provided with plug, is provided with branch fastener
Seat ring hole locating rack, the push rod bottom are provided with positioning bracket.
Preferably, the connecting rod connection cover is shaped as circular or regular polygon, connecting rod connection cover center and piston push rod axle
Line is overlapped, and the telescoping mechanism is uniformly distributed using connecting rod connection cover center as the center of circle is rounded.
Preferably, the hydraulic cylinder bottom has been located at hydraulic cylinder fixed plate, the fixed column bottom and hydraulic cylinder fixed plate
It is affixed.
Preferably, the hydraulic cylinder fixed plate is rounded, and hydraulic cylinder fixed plate is arranged distant from the centre bit of hydraulic cylinder side
Install and be equipped with circular positioning boss.
Preferably, the positioning bracket includes connecting bottom board, supporting plate and riser, the connecting bottom board bottom surface and hydraulic cylinder
Fixed plate ground is flushed and is provided with mounting hole, and through hole is provided with the supporting plate, and the push rod passes through through hole, the riser
It is arranged at swing rod bottom.
Preferably, seat ring hole locating rack and branch fastener is be detachably connected, and the plug is in round pie, plug axis
Direction is consistent with piston push rod axis direction.
Preferably, dust cover is provided with outside the hydraulic cylinder and telescoping mechanism, the dust cover side setting is jagged,
The breach is adapted with telescoping mechanism quantity, and notch geometry is adapted with riser shape.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches in centering machine, by hydraulic cylinder, liquid
Piston push rod on cylinder pressure forms the power of centering machine overall work, connecting rod one, connecting rod two, connecting rod three, fixed column and push rod
Umbrella shape telescoping mechanism is formed, umbrella shape telescoping mechanism is set around connecting rod connection cover, and is uniformly distinguished, and utilizes hydraulic cylinder and work
Plug push rod is realized that umbrella shape telescoping mechanism is overall and stretched.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches in centering machine, by umbrella shape telescopic machine
Structure is connected and is integral with hydraulic cylinder and hydraulic cylinder fixed plate, ensure that the stability of umbrella shape telescoping mechanism so that umbrella shape is stretched
Mechanism can be stretched centered on the piston push rod axis on hydraulic cylinder all the time, avoid umbrella shape telescoping mechanism in flexible work
It is middle mobile phenomenon occur.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches in centering machine, and push rod is in hydraulic cylinder
On piston push rod and umbrella shape telescoping mechanism mass action under be merely capable of realize move back and forth back and forth so that be connected with push rod
Swing rod be also merely capable of realize move back and forth back and forth, swing rod with umbrella shape telescoping mechanism integrated reciprocating move, be arranged on swing rod
The branch fastener of end and the plug on branch fastener and seat ring hole locating rack move back and forth also with swing rod.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches in centering machine, is arranged on hydraulic cylinder
Circular positioning boss on fixed plate bottom surface realizes the overall placement installation positioning of centering machine, positions on the connecting bottom board of bracket
Mounting hole realize positioning bracket positioning, position bracket on mounting hole and hydraulic cylinder fixed plate bottom surface on circular convex
Platform realizes the overall installation and positioning of centering machine together.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches in centering machine, and telescoping mechanism can be with
It is two groups, three groups, four groups, six groups or eight groups etc., can be selected according to the size and model of middle frame, in connecting rod connection cover
All telescoping mechanisms of once mounting are uniformly distributed using connecting rod connection cover center as the center of circle.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches in centering machine, is arranged on each
Plug formation one on fastener is cylindrical, and this outside diameter is adapted with the seat ring hole interior diameter on excavator middle frame, is set
Seat ring hole locating rack on each fastener realizes the plug and seat ring of the positioning to upper straddle, all fasteners and its top
During the locating rack work of hole, equal constant speed movement, the stroke range of plug is up to 130mm.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches centering machine, during work, this is fixed
Concentric mechanism integral installation by the lower straddle of middle frame to be welded, seat ring, stands plate and upper straddle is sequentially placed into core on welding bench
The circle that rod surrounds is outside, and causes plug to withstand the seat ring hole inwall of seat ring, starts hydraulic cylinder, on the piston push rod on hydraulic cylinder
Rise, the flexible centering machine of the umbellate form being made up of multiple telescoping mechanisms integrally outwardly opens so that plug holds out against seat ring, and seat ring hole is determined
Position frame holds out against straddle, the lower straddle, seat ring, the positioning stood between plate and upper straddle of middle frame is realized, then after to positioning
Middle frame integrally carry out a postwelding integral solder.
A kind of beneficial effect of the flexible centering machine of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention：
1st, the automatic precise positioning during welding of excavator middle frame is realized, avoids excavator middle frame welding in the prior art
The problem of Shi Caiyong manually positions the error of appearance and causes poor product quality by hand, qualification rate is low；
2nd, the plug entirety range of positioning is realized on centering machine up to 130mm, suitable for various model excavators
Different size middle frames positioning and installation, use range is wide, and utilization rate is high；
3rd, the flexible centering machine of this fluid pressure type umbellate form leans on Driven by Hydraulic Cylinder, self-locking and withdrawal, and automaticity is high, improves effect
Rate, reduce labor intensity；
4th, multigroup contracting mechanism of the flexible centering machine of umbellate form is rounded outside connecting rod connecting plate is uniformly distributed, its package count
But amount two groups, three groups, four groups, six groups, eight groups or more groups, have a preferable autgmentability, practicality is more preferable；
5th, dust cover is provided with centering machine, offers on dust cover side and is lacked with what the riser of positioning bracket was engaged
Mouthful, dust can be prevented, impurity etc. enters centering machine caused by welding, substantially prolongs the service life of centering machine.
Brief description of the drawings
Fig. 1 is a kind of flexible centering machine stereogram of excavator middle frame fluid pressure type umbellate form of the present invention,
Fig. 2 is a kind of flexible centering machine front view of excavator middle frame fluid pressure type umbellate form of the present invention,
Fig. 3 is schematic diagram after a kind of flexible centering machine installation dust cover of excavator middle frame fluid pressure type umbellate form of the present invention,
Fig. 4 stretches after centering machine uses six groups of telescoping mechanisms for a kind of excavator middle frame fluid pressure type umbellate form of the present invention to bow
View,
Fig. 5 is a kind of excavator middle frame knot of the flexible centering machine positioning of excavator middle frame fluid pressure type umbellate form of the present invention
Structure schematic diagram.
Wherein：1st, hydraulic cylinder, 2, hydraulic cylinder fixed plate, 3, positioning bracket, 4, plug, 5, swing rod, 6, push rod, 7, seat ring hole
Locating rack, 8, connecting rod three, 9, connecting rod two, 10, connecting rod one, 11, connecting rod connection cover, 12, branch fastener, 13, dust cover, 14, breach,
15th, positioning boss, 16, mounting hole, 17, connecting bottom board, 18, supporting plate, 19, riser, 20, fixed column, 21, piston push rod,
110th, lower straddle, 111, upper straddle, 112, seat ring, 113, plate of standing.
Embodiment
For ease of skilled artisan understands that technical solution of the present invention, in conjunction with Figure of description to the technology of the present invention side
Case is described further.
As shown in figure 5, this figure is excavator middle frame structural representation, be when middle frame is welded by lower straddle 110,
Seat ring 112, stand plate 113 and upper straddle 111 carry out splice point postwelding and welded entirely, but during existing middle frame welds, it is more
Using manual positioning, easily there is larger position error, have a strong impact on product qualification rate and its quality and the use of middle frame
Life-span.
As shown in Figure 1 and Figure 2, it is a kind of flexible centering machine structural representation of excavator middle frame fluid pressure type umbellate form of the present invention
Figure, a kind of excavator middle frame fluid pressure type umbellate form stretch centering machine, including the piston push rod 21 on hydraulic cylinder 1 and hydraulic cylinder,
The top of piston push rod 21 is provided with connecting rod connection cover 11, and no less than two groups telescopic machines are connected with the connecting rod connection cover 11
Structure, the telescoping mechanism include the connecting rod 1 being hinged with connecting rod connection cover 11, and the connecting rod 1 is away from connecting rod connection cover 11
End is hinged with connecting rod 29, and the connecting rod 1 is hinged with the centre position of connecting rod 29, and described one end of connecting rod 29 is connected to connecting rod
38, the other end is hinged with fixed column 20, and the connecting rod 38 is hinged with push rod 6 away from the end of connecting rod 29, and the push rod 6 is away from even
The end of bar 38 is connected with swing rod 5, and the swing rod 5 is provided with branch fastener 12 away from the end of push rod 6, and the end set of branch fastener 12 has
Plug 4, seat ring hole locating rack 7 is provided with branch fastener 12, and the bottom of push rod 6 is provided with positioning bracket 3；The technology of the present invention side
The flexible centering machine of the excavator middle frame fluid pressure type umbellate form of case, is stretched using the umbellate form by being formed no less than the telescoping mechanism of two
Contracting centering machine realizes the positioning to middle frame and its similar structures in Fig. 5.
As shown in Figure 1, Figure 2 and Figure 4, the connecting rod connection cover 11 is shaped as circular or regular polygon, connecting rod connection cover 11
Center is overlapped with piston push rod axis, and the telescoping mechanism is uniformly distributed using the center of connecting rod connection cover 11 as the center of circle is rounded.
Such as Fig. 1, the bottom of hydraulic cylinder 1 has been located at hydraulic cylinder fixed plate 2, and the bottom of fixed column 20 is fixed with hydraulic cylinder
Plate 2 is affixed.
Such as Fig. 2, the hydraulic cylinder fixed plate 2 is rounded, and hydraulic cylinder fixed plate 2 is arranged distant from the center of the side of hydraulic cylinder 1
Position is provided with circular positioning boss 15, and the positioning bracket 3 includes connecting bottom board 17, supporting plate 18 and riser 19, the company
Connect the bottom surface of bottom plate 17 to flush with the ground of hydraulic cylinder fixed plate 2 and be provided with mounting hole 16, through hole be provided with the supporting plate 18,
The push rod 6 passes through through hole, and the riser 19 is arranged at the bottom of swing rod 5.
Such as Fig. 1, seat ring hole locating rack 7 is with branch fastener 12 to be detachably connected, and the plug 4 is in round pie, plug 4
Axis direction is consistent with the axis direction of piston push rod 21.
Such as Fig. 3, dust cover 13 is provided with outside the hydraulic cylinder 1 and telescoping mechanism, the side of dust cover 13 is provided with
Breach, the breach 14 are adapted with telescoping mechanism quantity, and the shape of breach 14 is adapted with the shape of riser 19.
A kind of excavator middle frame fluid pressure type umbellate form of technical solution of the present invention stretches centering machine, during work, will feel relieved
Mechanism is arranged on welding bench entirely through hydraulic cylinder fixed plate 2, positioning boss 15 and connecting bottom board 17, and piston push rod 21 is initial
State by the lower straddle 110 of middle frame, seat ring 112, stands plate 113 and upper straddle 111 is socketed on centring machine successively to shrink position
Structure integral outer, ensure that the plug 4 on centering machine on branch fastener 12 withstands the seat ring hole inwall of seat ring 112, open hydraulic cylinder
1, piston push rod 21 is released upwards, and piston push rod 21 drives telescoping mechanism to work, and the push rod 6 on telescoping mechanism is with piston push rod
21 rise and are displaced outwardly, so as to drive the swing rod 5 being connected with push rod 6 to be pushed outwardly, be arranged on the plug 4 of the end of swing rod 5 to
The outer seat ring hole inwall for holding out against seat ring 112, due to being uniformly arranged the telescoping mechanism no less than two on centering machine, thus
Ensure that the seat ring hole inner wall even distribution of seat ring 112 by no less than the power in both direction, realize middle frame lower straddle 110,
Seat ring 112, stand plate 113 and upper straddle 111 positions, then middle frame is welded, hydraulic cylinder 1 is opened after welding, piston pushes away
Bar 21 is retracted backward, and telescoping mechanism is retracted, and push rod 6 is reversely retracted with driven fork 4, and plug 4 is withdrawn in the seat ring hole of seat ring 112
Wall, can be overall by being removed on centering machine by middle frame.
Invention is exemplarily described above in conjunction with accompanying drawing for technical solution of the present invention, it is clear that present invention specific implementation
It is not subject to the restrictions described above, as long as the various unsubstantialities for employing inventive concept and technical scheme of the present invention progress change
Enter, or it is not improved the design of invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (5)
- The centering machine 1. a kind of excavator middle frame fluid pressure type umbellate form stretches, it is characterised in that including on hydraulic cylinder and hydraulic cylinder Piston push rod, be provided with connecting rod connection cover at the top of the piston push rod, be connected with telescoping mechanism in the connecting rod connection cover, institute The connecting rod one that telescoping mechanism includes being hinged with connecting rod connection cover is stated, the connecting rod one is hinged with connecting rod away from connecting rod connection cover end Two, the connecting rod one is hinged with the centre position of connecting rod two, and described one end of connecting rod two is connected to connecting rod three, and the other end is hinged with solid Fixed column, the connecting rod three are hinged with push rod away from the end of connecting rod two, and the push rod has swing rod, the swing rod away from connecting rod three-terminal link Push rod end is provided with branch fastener, the support cephalic par is provided with plug, seat ring hole locating rack, institute are provided with branch fastener State push rod bottom and be provided with positioning bracket, for seat ring hole locating rack with branch fastener to be detachably connected, the plug is in cake Shape, plug axis direction is consistent with piston push rod axis direction, the telescoping mechanism include two groups, three groups, four groups, six groups or Eight groups, the connecting rod connection cover is shaped as circular or regular polygon, and connecting rod connection cover center overlaps with piston push rod axis, described Telescoping mechanism is uniformly distributed using connecting rod connection cover center as the center of circle is rounded.
- The centering machine 2. a kind of excavator middle frame fluid pressure type umbellate form according to claim 1 stretches, it is characterised in that institute State hydraulic cylinder bottom and be located at hydraulic cylinder fixed plate, the fixed column bottom and hydraulic cylinder fixed plate are affixed.
- The centering machine 3. a kind of excavator middle frame fluid pressure type umbellate form according to claim 2 stretches, it is characterised in that institute State that hydraulic cylinder fixed plate is rounded, the center that hydraulic cylinder fixed plate is arranged distant from hydraulic cylinder side is provided with circular convex Platform.
- The centering machine 4. a kind of excavator middle frame fluid pressure type umbellate form according to claim 1 stretches, it is characterised in that institute Stating positioning bracket includes connecting bottom board, supporting plate and riser, the connecting bottom board bottom surface flushed with hydraulic cylinder fixed plate ground and Mounting hole is provided with, through hole is provided with the supporting plate, the push rod passes through through hole, and the riser is arranged at swing rod bottom.
- The centering machine 5. a kind of excavator middle frame fluid pressure type umbellate form according to claim 1 stretches, it is characterised in that institute State and dust cover is provided with outside hydraulic cylinder and telescoping mechanism, the dust cover side sets jagged, the breach and telescopic machine Structure quantity is adapted, and notch geometry is adapted with riser shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610498086.4A CN106216905B (en) | 2016-06-30 | 2016-06-30 | A kind of excavator middle frame fluid pressure type umbellate form stretches centering machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610498086.4A CN106216905B (en) | 2016-06-30 | 2016-06-30 | A kind of excavator middle frame fluid pressure type umbellate form stretches centering machine |
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| Publication Number | Publication Date |
|---|---|
| CN106216905A CN106216905A (en) | 2016-12-14 |
| CN106216905B true CN106216905B (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610498086.4A Active CN106216905B (en) | 2016-06-30 | 2016-06-30 | A kind of excavator middle frame fluid pressure type umbellate form stretches centering machine |
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| CN111906621B (en) * | 2020-07-22 | 2022-04-08 | 上海沃兹金田锯业有限公司 | Circular saw blade end surface grinding device |
| CN112171543B (en) * | 2020-09-10 | 2022-05-03 | 南京信息职业技术学院 | Diameter-adjustable auxiliary tool for barrel machining |
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| CN106216905A (en) | 2016-12-14 |
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