CN103447707B - Method for assembling large long guide rail assembly with guaranteed straightness - Google Patents
Method for assembling large long guide rail assembly with guaranteed straightness Download PDFInfo
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- CN103447707B CN103447707B CN201310345249.1A CN201310345249A CN103447707B CN 103447707 B CN103447707 B CN 103447707B CN 201310345249 A CN201310345249 A CN 201310345249A CN 103447707 B CN103447707 B CN 103447707B
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- guide rail
- frock
- fixed head
- framework
- connecting plate
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Abstract
The invention discloses a method for assembling a large long guide rail assembly with guaranteed straightness. An assembly sequence of an existing method is changed by the method. The method includes controlling a tool and assembling guide rails with the requirement on guaranteeing the straightness; integrally welding the assembled guide rails with the excellent straightness with a frame to obtain a final product. The method has the advantages that a guide rail part of the product manufactured by the method is excellent in straightness, a workpiece can assuredly freely slide on the guide rails, and the safety performance is greatly improved when a truck-mounted drilling rig works; the method is economical, practical and simple, operation is easy, and the production efficiency is obviously improved; the tool can be reused, and accordingly the production cost is lowered.
Description
Technical field
The present invention relates to a kind of method for processing and assembling of component of machine, specifically a kind of method of assembling large-scale long guideway base part.
Background technology
In the work progress speedily carried out rescue work in coal field ground gas extraction construction, shallow oil, hydrological well and geological prospecting, mine, need to use truck-mounted drilling rig.The gadder of truck-mounted drilling rig is generally a kind of telescopic mast.When extension mast stretches out, height can reach more than 20 meter, during retraction, and length is at more than 10 meters.Stretchable mast comprises expansion link and provides the mast frame of track for expansion link, and the unit head of rig moves on expansion link, and simultaneous retractable bar and the guide rail along mast frame move, and will have tight quality of fit between the guide rail of therefore expansion link and mast frame.The linearity of four guide rails on the mast frame of general length 12 meters all can not be greater than 3mm.
The structural representation of the mast frame of truck-mounted drilling rig as shown in Figure 1.The outside of mast frame is the framework 1 of long more than 12 meters, and the inner side of framework 1 is welded with the relative guide assembly of two pieces, and guide assembly is made up of guide rail 5, connecting plate 4, fixed head 3, and totally four, guide rail 5, four guide rails are arranged symmetrically with.Four guide rails are welded on several connecting plates 4 respectively, and connecting plate is connected on some pieces of fixed heads 3 symmetrically through bolt more between two, and fixed head 3 is welded in the framework of mast frame more respectively.The expansion link of truck-mounted drilling rig in the space that four guide rails limit along guide rail movement.Mast frame can not carry out machining again after finishing assembly, and the precision of therefore its assembling is exactly its final precision.At present, the method for assembly welding mast frame is first by frame in place, then by each parts successively assembly welding on framework.Such assemble method, finally can not ensure the linearity requirement of guide rail.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of assemble method that can ensure large-scale long guideway class component linearity, and the method can make the linearity of final products meet product requirement, if make the linearity of 12 meters of long assemblies within 3mm.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
Large-scale long guideway class component ensures the assemble method of linearity, adopts following steps and technique to carry out:
1. assembly welding framework, and make frock according to the design attitude of guide rail and required distance; The guide assembly that preliminary assembling is made up of fixed head, connecting plate, guide rail;
To ensure during assembly welding framework that the distance of placing in framework between two medial surfaces of guide assembly meets design size requirement;
Described frock is provided with the position of guide rail with apart from corresponding breach;
Described preliminary assembling guide assembly is first connected on fixed head by each connecting plate by bolt, then guide rail to be placed on connecting plate and by spot welding mode, guide rail and each connecting plate to be fixed, to the bolted of plate and connecting plate be connected and fixed again, form the guide assembly of preliminary assembling;
2. frock is vertically placed on a platform, tentatively assemble two groups of guide assemblies are buckled in the both sides of frock, and by loosening the bolt with fastening connecting plate and fixed head, guide rail being placed in the breach of frock, then by the mode of spot welding, guide rail being fixed in frock;
3. the distance between detecting respectively outside the plate that to be relatively fixed between two guide assemblies, pulls down the fixed head of the spacing being more than or equal to framework inner side end, then framework is placed on the outside of two guide assemblies;
4. process the end face of the fixed head removed, make the thickness of the fixed head removed be less than or equal to the spacing of connecting plate outer face to framework inner side end; Then again the fixed head processed is arranged between connecting plate and framework, and is fixed by bolts on connecting plate, adopted by fixed head the mode of spot welding to be connected to inside framework;
5. put postwelding, fixed head and frame welding are integrated by the mode adopting first symmetrical segmentation to weld again full weld; And guide rail and connecting plate are welded together;
6. after having welded, the solder joint polishing between frock and guide rail is opened, frock is taken out between guide rail, namely completes the assembling of large-scale long guideway class component.
Further improvement of the present invention is: described guide rail is symmetrically arranged four, and the cross section of described frock is rectangular configuration, and four angles of rectangle arrange the breach corresponding with the position of guide rail and distance;
Step 1. in preliminary assembling guide assembly time,, after guide rail and each connecting plate spot welding are fixed, unclamp the bolt connecting connecting plate and fixed head, the distance between the guide rail of two homonymies is adjusted to 3mm larger than designing requirement size, and then by bolted, form the guide assembly of preliminary assembling;
Step 2. in two groups of guide assemblies and frock are fastened time, described loosen and fastening bolt refer to first loosen be positioned at the connection connecting plate of guide assembly bottom and the bolt of fixed head, after four unfilled corners of four guide rails and frock are fitted like a glove, then the bolted that will loosen;
Further improvement of the present invention is: step 1. in preliminary assembling guide assembly time, first fixed head is arranged on platform along uniform on the length direction of guide rail, and fixed head point is affixed on platform;
Described frock and fixed head are uniformly distributed in the length direction of the guide rail; Perpendicularity and the depth of parallelism of four breach of every part frock ensure within 0.1mm when machining;
When frock is placed on platform, first rule on platform, then frock to be placed on platform and with line overlap, ensure the center line of each frock be straight line time, more each frock to be spoted weld on platform.
Further improvement of the present invention is: described step 3. in when placing framework, at it, centre position of each stressed bottom surface and end positions are all placed the support iron that one piece of thickness is not less than 20mm, by framework flying shore.
Owing to have employed technique scheme, the technological progress that the present invention obtains is:
The invention provides the assemble method that a kind of large-scale long guideway class component ensures linearity.This assemble method changes now methodical assembling sequence, first will need to ensure that the guide rail of linearity is assembled, then by assemble, the overall and frame welding of guide rail that linearity is good.The final products of such acquisition, its guide rail has extraordinary linearity, can ensure travelling workpiece at slide on rails freely, substantially increases security performance during truck-mounted drilling rig work.The method is economical and practical, simple to operation, significantly improves production efficiency; And frock can repeated multiple timesly use, and reduces production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of long guideway class component of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the installation process schematic diagram of guide assembly and frock.
Wherein, 1, framework, 2, frock, 3, fixed head, 4, connecting plate, 5, guide rail.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further details:
Take length as the truck-mounted drilling rig mast frame of 12m be example, truck-mounted drilling rig mast frame comprises framework 1, the cross section of framework 1 is trench structure, the grooved stile of framework is welded with guide assembly, guide assembly comprises the fixed head 3 be welded on two grooved stiles of framework, the fixed head 3 of every side is bolted some connecting plates 4, and guide rail 5 is arranged on connecting plate 4, as shown in Figure 1, 2.
The truck-mounted drilling rig mast frame designing requirement of 12m ensures that linearity is within 3mm.Elaborate its assemble method below, comprise the following steps:
1. assembly welding framework 1: framework 1 is large-scale rivet welding part, will ensure during assembly welding framework 1 that the distance of placing in framework 1 between two medial surfaces of guide assembly meets design size requirement.
Make frock 2: the cross section of frock 2 is rectangular configuration, and four angles of rectangle have four breach, design attitude and the required distance of breach and the guide rail 5 of mast frame are corresponding; Need 19 frocks in the present embodiment altogether, perpendicularity and the depth of parallelism of four breach of every part frock 2 all ensure within 0.1mm when machining.
Preliminary assembling guide assembly:
Guide assembly is made up of fixed head 3, connecting plate 4 and guide rail 5, as shown in Figure 1 and Figure 2; The two ends of described fixed head 3 have for bolted elongated hole, and guide rail 5 is four column type rod irons be arranged symmetrically with.The process of preliminary assembling is: first 38 fixed heads 3 are divided into two groups, often organize 19, be erected on platform by uniform in 12m length respectively for two groups of fixed heads 3, and by 38 fixed heads 3, all point is solid on platform, require to ensure that each block fixed head 3 is all vertical with platform, and two groups of fixed heads lay respectively on straight line; Then, 76 pieces of connecting plates 4 are connected to the two ends up and down of 38 pieces of fixed heads 3 by bolt; Guide rail 5 is placed on connecting plate 4, ensures the size conforms designing requirement between upper and lower two guide rails 5, by spot welding mode, guide rail 5 and every block connecting plate 4 are fixed; Then unclamp the bolt on all connecting plates 4 of being connected with wherein guide rail 5, by moving up and down of connecting plate 4 and guide rail 5, the distance between two guide rails 5 is adjusted to 3mm larger than designing requirement size, and then by bolted; Finally, with emery wheel fixed head 3 ground with the solder joint on platform and open, just obtain two groups of guide assemblies tentatively assembled.
2. select flatness good, length is more than or equal to the large platform of 12m.According to designing requirement, large platform draws the theoretical size center line of framework 1, the dimension line of framework 1 medial surface and the position line of frock 2,19 frocks 2 are evenly distributed on the long center line of 12m.Then framework 1 is put into by line centering on large platform, and the distance between the inner side end detecting framework 1 on the position of 19 frocks, mark carried out by platform.After detection completes, framework 1 is hung lower platform.
Vertically be placed on platform by 19 frock 2 opsition dependent lines, spot welding is fixed, and makes each part frock 2 all keep vertical with platform; Then tentatively assemble two groups of guide assemblies are buckled in the both sides of frock 2, make the side of the movement when 1. step regulates guide rail 5 relative size be positioned at bottom; Then four guide rails 5 are placed in four breach of frock 2 respectively, first loosen the bolt between the connecting plate 4 and fixed head 3 of guide assembly bottom, four unfilled corners of four guide rails and frock 2 are fitted like a glove, and then the bolted that will loosen; Guide rail 5 is fixed in frock 2 by the mode finally by spot welding.
3. the distance between detecting respectively outside the two pieces of fixed heads 3 be connected with same frock 2, and step 2. in distance between the inner side end of framework 1 that detects in same position compare, the fixed head 3 of the spacing being more than or equal to framework 1 inner side end is all pulled down, and write sequence number, in order to avoid the position of fixed head 3 is obscured.
Framework 1 is placed on the outside of two groups of guide assemblies, as shown in Figure 2; On the centre position and end positions of two stressed bottom surface, each placement one piece of thickness is the support iron of 20mm, by framework 1 flying shore, ensures the level of framework 1.
Distance between the outer face of the connecting plate 4 that the fixed head 3 of 4. surveying and disassemble matches and framework 1 inner side end, is the maximum gauge of the fixed head 3 that every block disassembles, is marked at the back side of this fixed head 3.
According to above-mentioned measured result, process the end face of the fixed head 3 removed, make the thickness of the fixed head 3 removed be less than or equal to the spacing of connecting plate 4 outer face to framework 1 inner side end; Then according to the sequence number of former establishment, again the fixed head 3 processed will be arranged between connecting plate 4 and framework 1, and be fixed by bolts on connecting plate 4.If the gap between inside some fixed head 3 and framework 1 is comparatively large, available lath paves.Then the mode of spot welding is all adopted by fixed head 3 to be connected to inside framework 1.
5. put postwelding, the mode adopting first symmetrical segmentation to weld again full weld by inside fixed head 3 and framework 1, guide rail 5 is welded as a whole with connecting plate 4.After having welded, all solder joints opened between 19 frocks 2 and large platform of polishing, by framework 1 integrated overturn 180 ° combined, continue all weld seams do not welded of welding, also adopt first symmetrical segmentation to weld the method for full weld again.
6. after having welded, the solder joint between 19 frocks 2 and guide rail 5 is polished and opens, frock 2 is taken out between guide rail 5, namely completes the assembling of large-scale long guideway class component.19 frocks 2 are reusable.
Detect the linearity of the large-scale long guideway class component processed, its linearity is 1.9mm, meets designing requirement.
When processed rail length is different, needs the actual design requirement according to product, the quantity of fixed head, connecting plate and frock is suitably adjusted.When the quantity of guide rail with when arranging that orientation changes to some extent, can modify according to the pattern of designing requirement to frock.
Claims (4)
1. large-scale long guideway class component ensures the assemble method of linearity, it is characterized in that: adopt following steps and technique to carry out:
1. assembly welding framework (1), and make frock (2) according to the design attitude of guide rail (5) and required distance; The guide assembly that preliminary assembling is made up of fixed head (3), connecting plate (4), guide rail (5);
To ensure time assembly welding framework (1) that the distance of placing in framework (1) between two medial surfaces of guide assembly meets design size requirement;
Described frock (2) is provided with the position of guide rail (5) with apart from corresponding breach;
Described preliminary assembling guide assembly is first arranged on platform along uniform on the length direction of guide rail (5) by fixed head (3), and be affixed on platform by fixed head (3) point; Each connecting plate (4) is connected on fixed head (3) by bolt, then guide rail (5) is placed on connecting plate (4) go up and pass through spot welding mode by fixing to guide rail (5) and each connecting plate (4), unclamp the bolt connecting connecting plate (4) and fixed head (3) again, distance between the guide rail (5) of two homonymies is adjusted to 3mm larger than designing requirement size, and then by bolted, form the guide assembly of preliminary assembling;
2. frock (2) is vertically placed on a platform, tentatively assemble two groups of guide assemblies are buckled in the both sides of frock (2), and by loosening the bolt with fastening connecting plate (4) and fixed head (3), guide rail (5) is placed in the breach of frock (2), then by the mode of spot welding, guide rail (5) is fixed in frock (2);
3. the distance be relatively fixed between plate (3) outside between two guide assemblies is detected respectively, the fixed head (3) being more than or equal to the spacing of framework (1) inner side end is pulled down, then framework (1) is placed on the outside of two guide assemblies;
4. process the end face of the fixed head (3) removed, make the thickness of the fixed head (3) removed be less than or equal to the spacing of connecting plate (4) outer face to framework (1) inner side end; Then again the fixed head processed (3) is arranged between connecting plate (4) and framework (1), and be fixed by bolts on connecting plate (4), adopted by fixed head (3) mode of spot welding to be connected to framework (1) inner side;
5. put postwelding, fixed head (3) and framework (1) are welded as a whole by the mode adopting first symmetrical segmentation to weld again full weld; And guide rail (5) and connecting plate (4) are welded together;
6. after having welded, the solder joint between frock (2) and guide rail (5) is polished and open, frock (2) is taken out between guide rail (5), namely completes the assembling of large-scale long guideway class component.
2. large-scale long guideway class component according to claim 1 ensures the assemble method of linearity, it is characterized in that:
Described guide rail (5) is symmetrically arranged four, and the cross section of described frock (2) is rectangular configuration, and four angles of rectangle arrange the breach corresponding with the position of guide rail (5) and distance;
Step 2. in two groups of guide assemblies and frock (2) are fastened time, described loosen and fastening bolt refer to first loosen be positioned at the connection connecting plate (4) of guide assembly bottom and the bolt of fixed head (3), after four unfilled corners of four guide rails and frock are fitted like a glove, then the bolted that will loosen.
3. the large-scale long guideway class component according to any one of claim 1 or 2 ensures the assemble method of linearity, it is characterized in that:
Described frock (2) and fixed head (3) are evenly distributed on the length direction of guide rail (5); Perpendicularity and the depth of parallelism of four breach of every part frock (2) ensure within 0.1mm when machining;
When frock (2) is placed on platform, first rule on platform, then frock (2) to be placed on platform and with line overlap, ensure the center line of each frock (2) be straight line time, more each frock (2) to be spoted weld on platform.
4. large-scale long guideway class component according to claim 3 ensures the assemble method of linearity, it is characterized in that: described step 3. in place framework (1) time, at it, centre position of each stressed bottom surface and end positions are all placed the support iron that one piece of thickness is not less than 20mm, by framework (1) flying shore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310345249.1A CN103447707B (en) | 2013-08-08 | 2013-08-08 | Method for assembling large long guide rail assembly with guaranteed straightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310345249.1A CN103447707B (en) | 2013-08-08 | 2013-08-08 | Method for assembling large long guide rail assembly with guaranteed straightness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103447707A CN103447707A (en) | 2013-12-18 |
| CN103447707B true CN103447707B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310345249.1A Expired - Fee Related CN103447707B (en) | 2013-08-08 | 2013-08-08 | Method for assembling large long guide rail assembly with guaranteed straightness |
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| CN (1) | CN103447707B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112815813B (en) * | 2020-12-30 | 2024-03-01 | 宝鸡石油机械有限责任公司 | Multi-use-surface double-top-drive guide rail detection device and detection method |
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|---|---|---|---|---|
| EP1102656A4 (en) * | 1998-04-10 | 2002-01-02 | Arcmatic Integrated Systems In | Welding system and method |
| CN101693332A (en) * | 2009-10-29 | 2010-04-14 | 天津重钢机械装备股份有限公司 | Device for assembling double-beam crane tracks |
| CN201500869U (en) * | 2009-08-31 | 2010-06-09 | 中国北车集团大同电力机车有限责任公司 | Assembly welding clamping equipment of locomotive chassis longitudinal beams |
| CN201546631U (en) * | 2009-11-23 | 2010-08-11 | 石家庄煤矿机械有限责任公司 | Telescopic mast drill derrick |
| CN202639707U (en) * | 2012-06-05 | 2013-01-02 | 江苏普腾停车设备有限公司 | Welding fixture for assembly of C-shaped beam |
-
2013
- 2013-08-08 CN CN201310345249.1A patent/CN103447707B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1102656A4 (en) * | 1998-04-10 | 2002-01-02 | Arcmatic Integrated Systems In | Welding system and method |
| CN201500869U (en) * | 2009-08-31 | 2010-06-09 | 中国北车集团大同电力机车有限责任公司 | Assembly welding clamping equipment of locomotive chassis longitudinal beams |
| CN101693332A (en) * | 2009-10-29 | 2010-04-14 | 天津重钢机械装备股份有限公司 | Device for assembling double-beam crane tracks |
| CN201546631U (en) * | 2009-11-23 | 2010-08-11 | 石家庄煤矿机械有限责任公司 | Telescopic mast drill derrick |
| CN202639707U (en) * | 2012-06-05 | 2013-01-02 | 江苏普腾停车设备有限公司 | Welding fixture for assembly of C-shaped beam |
Non-Patent Citations (1)
| Title |
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| 超长无缝钢轨的焊接与安装;郑小民;《机电工程技术》;20060331;第35卷(第3期);第67-70、87页 * |
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| CN103447707A (en) | 2013-12-18 |
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