CN204321476U - Main platform otic placode fixtures for rapid assembly - Google Patents
Main platform otic placode fixtures for rapid assembly Download PDFInfo
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- CN204321476U CN204321476U CN201420767670.1U CN201420767670U CN204321476U CN 204321476 U CN204321476 U CN 204321476U CN 201420767670 U CN201420767670 U CN 201420767670U CN 204321476 U CN204321476 U CN 204321476U
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Abstract
The utility model discloses a kind of main platform otic placode fixtures for rapid assembly, relate to main platform and mounting technology field thereof.The utility model comprises tooling shaft, positioning shaft sleeve and 2 positioning spacers, and described positioning shaft sleeve and 2 positioning spacer gaps are sleeved on tooling shaft, and one end of tooling shaft is provided with locating shoulder, and the other end is provided with positioning end cover; Two pairs of otic placodes can be located the two ends being through at tooling shaft respectively, between every a pair otic placode, positioning spacer is housed, the otic placode being positioned at outside relies on locating shoulder location, two otic placodes being positioned at inner side rely on positioning shaft sleeve and positioning spacer location, and another otic placode in outside is by positioning spacer and positioning end cover location.Positioning clamping by frock to needing the otic placode of assembling, greatly can not only reduce cost of manufacture, shorten the production cycle, and the fitted position precision of otic placode improving greatly, meets the quality requirement of product.
Description
Technical field
The utility model relates to main platform and mounting technology field thereof, particularly a kind of assembling being suitable for tracked construction equipment turntable otic placode.
Background technology
In engineering machinery, the series heavy-duty machineries such as crawler type rotary drilling rig, crawler crane and dynamic compaction machinery as serial in TD18, TD28, TD30, TQ50, TQ80, TD138 etc., are mostly made up of power set, operating mechanism and swing arm, turntable, chassis etc.Turntable and main platform, be contained on chassis by pivoting support, total weight on turntable can be passed to chassis, actuating unit, transmission mechanism, major-minor hoisting mechanism, operating mechanism, swing arm etc. turntable are equipped with, power set can make turntable do 360 degree of revolutions by slew gear, realize the operations such as lifting, when installing these mechanisms on turntable, need on turntable, to assemble otic placode in advance, pass through otic placode, these mechanisms and turntable are coupled together, and the positional precision of otic placode is directly connected to the assembly precision of these mechanisms on turntable.
At present, to assembling and positioning mainly several special purpose machine tool cooperation of the otic placode on turntable, integrated machine processing is carried out, ensure the positional precision between otic placode, this processing will drop into a large amount of special equipments, wastes time and energy and takies substantial contribution, is unfavorable for the development of enterprise.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of main platform otic placode fixtures for rapid assembly, can be positioned needing the otic placode of assembling by frock, greatly can not only reduce cost of manufacture, and the fitted position precision of otic placode improves greatly, meet the quality requirement of product, improve the efficiency of assembling of otic placode.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of main platform otic placode fixtures for rapid assembly, comprise tooling shaft, positioning shaft sleeve and 2 positioning spacers, described positioning shaft sleeve and 2 positioning spacer gaps are sleeved on tooling shaft, one end of tooling shaft is provided with locating shoulder, and the other end is provided with positioning end cover; Two pairs of otic placodes can be located the two ends being through at tooling shaft respectively, between every a pair otic placode, positioning spacer is housed, the otic placode being positioned at outside relies on locating shoulder location, two otic placodes being positioned at inner side rely on positioning shaft sleeve and positioning spacer location, and another otic placode in outside is by positioning spacer and positioning end cover location.
Described positioning end cover comprises end cap and lock-screw.
The stage casing of described tooling shaft is provided with axial notch.
The beneficial effect adopting technique scheme to produce is:
Be arranged in frock by the otic placode that needs are equipped according to actual size, then the frock of band otic placode is placed into installation site and carries out line location, and frock is taken off again after otic placode is welded, such assembling mode can not only ensure the dimensional accuracy between otic placode, and can post welding distortion be reduced, the equipped size Control of otic placode is controlled within 0.10mm in 1mm, axiality, meets the assembly production requirement of product.
Utilize this frock, on steel construction piece grown up by turntable, mast etc., directly can weld otic placode, eliminate external coordination and entrust machining processes, save the freight charges of machined expense and dealing, solve the bottleneck of enterprise's large-sized structural parts machining apparatus scarce capacity, shorten the process-cycle.
This frock is applicable to the main platform of crawler crane of TQ80, TQ50 model in engineering machinery, the otic placode of strong rammer owner platform is equipped with, and the middle mast of TD18, TD138 TD28 TD30 rotary drilling rig and upper mast, elevator more than ten otic placodes of planting steel construction of growing up such as to be equipped with and to be equipped with, integrated machine processing can be substituted, greatly can reduce cost of manufacture, shorten the production cycle.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model works state;
Fig. 2 is the structural representation of tracked construction equipment turntable otic placode;
In figure: 1, locating shoulder; 2, positioning spacer; 3, otic placode; 4, positioning shaft sleeve; 5, tooling shaft; 6, positioning end cover; 7, lock-screw.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
At present, along with the development of science and technology, new technology, new technology develop rapidly cold doing in assembly technology, utilize assembling skill and Fundamentals of Welding, be equipped with and exercisablely step up the assembly precision that positioning tool ensure that steelwork component, integrated machine processing can be substituted, effectively reduce cost of manufacture, reduce the production cycle, improve the assembly precision of the series engineering such as crawler crane, rotary drilling rig machinery, and greatly reduce the cost of assembly production.The utility model is by the analysis of the direction of the structure to crawler crane parts and churning driven parts, assembly precision, equipped relation and requirement, assembling sequence, welding deformation and internal stress trend, clamping and positioning frock, manufacture otic placode assembly tool, by the assembling of the equipped of the otic placode to the main platform of TQ80 TQ50 crawler crane, strong rammer owner platform and TD30 mast oil cylinder bearing, prove to use this frock to control welding deformation, ensure overall dimensions, its coaxial accuracy reaches the requirement of 0.10mm.
Its structure, see Fig. 1, specifically comprises tooling shaft 5, positioning shaft sleeve 4 and 2 positioning spacers 2, and described positioning shaft sleeve 4 and 2 positioning spacer 2 gaps are sleeved on tooling shaft 5, and one end of tooling shaft 5 is provided with locating shoulder 1, and the other end is provided with positioning end cover 6; Two pairs of otic placodes 3 can be located the two ends being through at tooling shaft 5 respectively, between every a pair otic placode 3, positioning spacer 2 is housed, the otic placode 3 being positioned at outside relies on locating shoulder 1 to locate, two otic placodes 3 being positioned at inner side rely on positioning shaft sleeve 4 and positioning spacer 2 to locate, and another otic placode 3 in outside is located by positioning spacer 2 and positioning end cover 6.
Described positioning end cover 6 comprises end cap and lock-screw 7.
Take off for ease of positioning shaft sleeve 4, the stage casing of described tooling shaft 5 is also provided with axial notch.
The size of tooling shaft 5, positioning shaft sleeve 4, positioning spacer 2, locating shoulder 1 is determined according to the actual installation position of otic placode 3, but its required precision is higher than the positional precision of actual installation.
This frock can reach machining dimension requirement, and ensure that the dimensional tolerance of frock is less than actual size tolerance, wherein, utilize tooling shaft 5 to ensure axiality, tooling shaft 5 size diameter of making is greater than the equipped axle of actual use, makes up post welding distortion amount.Utilize the location dimension that positioning shaft sleeve 4 ensures between otic placode 3, utilize the principle rigidly fixed, Reducing distortion simultaneously, utilize frock to become as a whole increase rigidity, adopt the symmetrical assembly weldings of two people and rational welding sequence, offset and be welded to each other contraction and angular deformation.
Here is the otic placode assembly method utilizing main platform otic placode fixtures for rapid assembly, comprises the steps:
The first step, by needing the drawing of the main platform of equipped otic placode 3, technical requirement analyzes, to deformation allowance, angular deformation amount and amount of contraction are analyzed, and make the tooling shaft 5 of corresponding otic placode size, positioning shaft sleeve 4, locating shoulder 1 and positioning spacer 2;
Second step, on main platform, draws the location dimension of otic placode 3 according to drawing requirement scriber, detect size between two otic placodes 3 drawn with slide calliper rule;
3rd step, by frock, 2 pairs of otic placodes 3 are assembled into together, check whether assembling is fastening, whether reach by the size that slide calliper rule detect between assembling otic placode or be less than dimensional tolerance, the otic placode 3 fitted together by frock is placed on the position of location that main platform rule, checks whether the otic placode of assembling conforms to the dimension line of the otic placode of delimiting;
4th step, welding method adopts full-argon gas shielded arc welding, adopts welding manner to be the symmetrical weldings of two people, by consistent for two welder specification adjustment before weldering, reduces heat input as far as possible, adopt little specification to weld, ensure consistent speed of welding;
5th step, group to point is welded, and according to drawing technical requirement, consider that inner side leg is less than outside leg, spot welding position is inside otic placode 3 two sections, increases medial angle deflection trend, the symmetrical spot welding of two people; First weld joint on inner side is welded during welding, completely after cooling, the outer side weld of welding, adopt single track or multi-layer multi-pass welding according to thickness of slab, reduce heat input, controlling distortion and contraction;
6th step, hammering weld seam gently after welding cooling, unclamps the lock-screw 7 of one end, takes off positioning end cover 6, rotary fixture axle 5, rotates flexibly, tooling shaft is extracted out from the otic placode fixed.
Shown in Figure 2, otic placode on the main platforms of similar products such as crawler crane steel construction piece, dynamic compaction machinery steel construction piece, rotary drilling rig steel construction piece is more, dimensional accuracy due to otic placode is directly connected to the accuracy of the mechanism such as arm, truss, hoist engine be assembled together with otic placode, and otic placode is equipped with difficult point and is: 1. group is high to dimensional accuracy, be difficult to ensure; 2. post welding distortion amount and amount of contraction on the impact of otic placode coaxiality of inner hole comparatively greatly, can not ensure the requirement of drawing axiality, and angular deformation and welding contraction can not ensure relative size between otic placode, need secondary adjusting; 3. outer machined cost of entrusting is high, and the process-cycle is long, and for other large-scale structure palpus special equipment individual, disposable input is too large, and large-scale structure freight charges are higher.
The innovative point that utility model is created: 1. adopt the meticulous line of scriber to be equipped with the meticulous detection of slide calliper rule; 2. make frock, ensure that the dimensional tolerance of frock is less than actual size tolerance, utilize axle to ensure axiality, the technique shaft size diameter of making is greater than the assembled shaft of actual use, makes up post welding distortion amount.The positioning shaft sleeve 4 utilizing steel pipe to make ensures the location dimension between otic placode to utilize the principle rigidly fixed, Reducing distortion simultaneously, utilizes frock that otic placode is formed body, increases rigidity; 3. adopt the symmetrical assembly welding of two people and rational welding sequence, offset and be welded to each other contraction and angular deformation; 4. overall structure dimensional accuracy improves greatly, and equipped otic placode and bearing pin size Control, within 0.10mm, instead of machined, meet the assembly production requirement of product.
This frock can be widely used in the equipped making of the similar products such as crawler crane steel construction piece, dynamic compaction machinery steel construction piece, rotary drilling rig steel construction piece, remarkable benefit.Through meticulous setting-out, meticulous detection, frock making, meticulous assembling, welding control, and overall structure dimensional accuracy improves greatly, and equipped ear seat size Control within 0.10mm, meets the assembly production requirement of product in 1mm, axiality.At direct welding ear seat on steel construction piece of growing up, eliminate the outer machining processes of large-scale structure part committee, greatly save machined expense, analyze according to statistics, each saving 3000-6000 unit machined expense, and save the freight charges of dealing, wherein, each saving 1500-3000 unit; And solve the bottleneck of large-sized structural parts machining apparatus scarce capacity, shorten the process-cycle.
The utility model is applicable to equipped, the welding of otic placode of the main platform of engineering machinery TQ80 TQ50 crawler crane, strong rammer owner platform, and TD18, TD138 TD28 TD30 churning driven middle mast and upper mast, elevator to be equipped with etc. more than ten and to plant welding of steel construction of growing up and be equipped with operation.
Claims (3)
1. a main platform otic placode fixtures for rapid assembly, it is characterized in that, comprise tooling shaft (5), positioning shaft sleeve (4) and 2 positioning spacers (2), described positioning shaft sleeve (4) and 2 positioning spacer (2) gaps are sleeved on tooling shaft (5), one end of tooling shaft (5) is provided with locating shoulder (1), and the other end is provided with positioning end cover (6); Two pairs of otic placodes (3) can be located the two ends being through at tooling shaft (5) respectively, between every a pair otic placode (3), positioning spacer (2) is housed, the otic placode (3) being positioned at outside relies on locating shoulder (1) location, two otic placodes (3) being positioned at inner side rely on positioning shaft sleeve (4) and positioning spacer (2) location, and another otic placode (3) in outside is by positioning spacer (2) and positioning end cover (6) location.
2. main platform otic placode fixtures for rapid assembly according to claim 1, is characterized in that, described positioning end cover (6) comprises end cap and lock-screw (7).
3. main platform otic placode fixtures for rapid assembly according to claim 1, is characterized in that, the stage casing of described tooling shaft (5) is provided with axial notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767670.1U CN204321476U (en) | 2014-12-09 | 2014-12-09 | Main platform otic placode fixtures for rapid assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420767670.1U CN204321476U (en) | 2014-12-09 | 2014-12-09 | Main platform otic placode fixtures for rapid assembly |
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| CN204321476U true CN204321476U (en) | 2015-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439849A (en) * | 2014-12-09 | 2015-03-25 | 南车石家庄车辆有限公司 | Main platform ear plate fast assembling tooling and ear plate assembling method |
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2014
- 2014-12-09 CN CN201420767670.1U patent/CN204321476U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439849A (en) * | 2014-12-09 | 2015-03-25 | 南车石家庄车辆有限公司 | Main platform ear plate fast assembling tooling and ear plate assembling method |
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Address after: 051430 Shijiazhuang Province, Luancheng City, Shijiazhuang province equipment Industrial Park, Yu Xiang street, No. 168 Patentee after: CRRC SHIJIAZHUANG CO., LTD. Address before: 050000 No. 125, front street, Shijiazhuang vehicle factory, Hebei Patentee before: CSR SHIJIAZHUANG ROLLING STOCK WORKS |