CN204621427U - Spiral shell seat welding positioning tool - Google Patents
Spiral shell seat welding positioning tool Download PDFInfo
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- CN204621427U CN204621427U CN201520095383.5U CN201520095383U CN204621427U CN 204621427 U CN204621427 U CN 204621427U CN 201520095383 U CN201520095383 U CN 201520095383U CN 204621427 U CN204621427 U CN 204621427U
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Abstract
The spiral shell seat welding positioning tool that the utility model provides relates to welding accessory field, comprise the base of spiral shell seat gland, locating ring and column, the side of described base is provided with the otch being convenient to fixture gripping, one end of described base is provided with boss, described spiral shell seat gland is provided with the screw thread for coordinating with spiral shell seat, described spiral shell seat gland is connected with one end being provided with boss of described base, be folded with described locating ring between described spiral shell seat gland and described boss, described locating ring is carbide alloy locating ring.Adopt the utility model to improve positioning precision and the service life of spiral shell seat welding positioning tool, and then decrease the concentric error of spiral shell seat and spiral shell seat installing hole, thoroughly solve the oil sump oil accident caused due to spiral shell seat relative spiral shell seat installing hole welding decentraction.
Description
Technical field
The utility model relates to welding accessory field, in particular to a kind of spiral shell seat welding positioning tool.
Background technology
Oil sump is the Lower Half of crankcase, is also called lower crankcase.Effect carrys out closed crankcase as the shell of oil storage tank, prevents impurity from entering, and collect and store the lubricating oil flowed back to, and leave lubricating oil portion heat, prevents oil ageing.Also purge cock is housed in the bottom of oil sump.Purge cock passes the spiral shell seat installing hole of oil sump and fixes with the spiral shell seat of oil sump inside.Spiral shell seat to be welded on oil sump and to be communicated with spiral shell seat installing hole, and the welding quality of spiral shell seat will directly have influence on seal degree and the service life of oil sump.
Generally position by a welding tooling concentricity that welding ensures spiral shell seat and spiral shell seat installing hole time spiral shell seat welds with oil sump.Because existing welding tooling must Cutting Process escape when making, in actual use procedure, spiral shell seat installing hole is easy to snap in technique escape, causes welding tooling bias to tilt, and then causes spiral shell seat and spiral shell seat installing hole decentraction.In addition, the part that existing welding tooling coordinates with oil sump is is in use worn and torn larger, easy generation wearing and tearing cause positioning gap excessive, spiral shell seat and spiral shell seat installing hole decentraction when the welding tooling of distortion also can cause positioning welding, make the spiral shell seat after welding and spiral shell seat installing hole decentraction, cause purge cock to be subject to the interference of spiral shell seat installing hole when assembling with spiral shell seat, after causing purge cock to assemble, plug screw supporting surface is not parallel with corresponding oil sump plane, occurs leakage of oil.
Utility model content
In view of this, the utility model provides a kind of spiral shell seat welding positioning tool, to improve the problems referred to above.
The spiral shell seat welding positioning tool that the utility model provides comprises the base of spiral shell seat gland, locating ring and column, the side of described base is provided with the otch being convenient to fixture gripping, one end of described base is provided with boss, described spiral shell seat gland is provided with the screw thread for coordinating with spiral shell seat, described spiral shell seat gland is connected with one end being provided with boss of described base, be folded with described locating ring between described spiral shell seat gland and described boss, described locating ring is carbide alloy locating ring.
Above-described spiral shell seat welding positioning tool, preferably, described spiral shell seat gland one end is provided with the threaded mandrel of the axis direction along described spiral shell seat gland, described threaded mandrel is provided with external screw thread, described base offers the screwed hole for holding described threaded mandrel, be provided with the internal thread for engaging with described external screw thread in described screwed hole, described threaded mandrel is passed described locating ring and is stretched in described screwed hole.
Utilize external screw thread threaded mandrel and screwed hole can be locked with engaging of internal thread, what realize spiral shell seat gland and base is fixing.And threaded mandrel is through locating ring, and the skew of position can not occur locating ring, makes spiral shell seat gland, locating ring, base be in concentric position, ensure that the spiral shell seat after welding and goes out the concentric of spiral shell seat installing hole, improve the quality of welding.
Due to spiral shell seat welding positioning tool in use mainly occur wearing and tearing be locating ring, therefore, when after locating ring generation abrasion deformation, spiral shell seat gland and base are disassembled by external screw thread and removably connecting of screw-internal thread fit, replacing is carried out to the locating ring between spiral shell seat gland and base and can meet instructions for use, and do not need to carry out integral replacing to spiral shell seat welding positioning tool, save maintenance cost.
Above-described spiral shell seat welding positioning tool, preferably, the screw thread of described spiral shell seat gland is right-handed thread, and described external screw thread and described internal thread are left hand thread.Usually in arranging, the screw thread in spiral shell seat is right-handed thread, and more smooth and easy and convenient in order to spiral shell seat gland and spiral shell seat can be made to screw, the screw thread of spiral shell seat gland is also set to right-handed thread.
In use, spiral shell seat gland and screwing of spiral shell seat are dextrorotation, unscrew as left-handed, if the internal thread of the external screw thread of threaded mandrel and screwed hole is also right-handed thread, when then unscrewing left-handed to spiral shell seat gland and spiral shell seat, because left-handed direction is identical with the direction that threaded mandrel and base unscrew, be easy to occur base and threaded mandrel to unscrew and cause spiral shell seat gland to be trapped in spiral shell seat.
Above-described spiral shell seat welding positioning tool, preferably, described boss is provided with the fixed axis of the axis direction along described base, and the cross section of described fixed axis is non-circular, and described spiral shell seat gland and described locating ring are provided with the through hole agreed with described fixed axis.The cross section of fixed axis is non-circular, fixed axis is inserted in spiral shell seat gland and locating ring, the cross section of fixed axis is non-circular, achieve the Profile Connection of fixed axis and spiral shell seat gland and locating ring, linking intensity is higher and do not have stress to concentrate, and extends the service life of spiral shell seat welding positioning tool.
Above-described spiral shell seat welding positioning tool, preferably, the cross section of described fixed axis is square.The cross section of fixed axis is square, because foursquare each length of side is equal, so fixed axis is more quick, convenient when processing, improves spiral shell seat welding positioning tool production efficiency.And foursquare four angles are right angle, when transmitting torque, stressed more even on fixed axis, the phenomenon that there will not be stress to concentrate, avoids the wearing and tearing of fixed axis, cracking, extends the service life of spiral shell seat welding positioning tool.
Above-described spiral shell seat welding positioning tool, preferably, described fixed axis respectively with the through hole interference fit of described spiral shell seat gland and described locating ring.Fixed axis is inserted in the through hole of spiral shell seat gland and locating ring, and with the through hole interference fit in spiral shell seat gland and locating ring.Be interference fitted in and ensure that spiral shell seat gland is combined with locating ring firmly under prerequisite, assemble convenient, and adding the fixed structure also not needing man-hour processing extra, simplifying the technological process of production, assembling spiral shell seat welding positioning tool, reduce the processing cost of spiral shell seat welding positioning tool.
Above-described spiral shell seat welding positioning tool, preferably, described spiral shell seat gland is welded with described fixed axis.When occurring to loosen in order to avoid spiral shell seat gland and fixed axis and make to weld, spiral shell seat is fixing unstable, and then cause spiral shell seat to occur deviation with spiral shell seat installing hole is concentric, spiral shell seat gland and fixed axis are welded and fixed by the mode of spot welding, make spiral shell seat gland and fixed axis strong bonded.
Above-described spiral shell seat welding positioning tool, preferably, described spiral shell seat gland and described fixed axis glued joint.In like manner, when occurring to loosen in order to avoid spiral shell seat gland and fixed axis and make to weld, spiral shell seat is fixing unstable, spiral shell seat gland and fixed axis is fixed by the mode of glueing joint.The fixed form of glueing joint is meeting under prerequisite spiral shell seat gland and fixed axis fixedly secured, and has fixed speed fast, the simple advantage of technique, substantially increases production and the packaging efficiency of spiral shell seat welding positioning tool.
Above-described spiral shell seat welding positioning tool, preferably, described locating ring is YD201 locating ring.YD201 is a kind of domestic trade mark of carbide alloy, and YD201 has high strength, and anti abrasive characteristic meets the requirement of the technological parameter of locating ring, extends the service life of locating ring and can not increase too many cost.
Above-described spiral shell seat welding positioning tool, preferably, the hardness of described locating ring is HRC66-70.The hardness of locating ring is the scope of HRC66-70, and the hardness of this scope meets spiral shell seat welding positioning tool to the hardness requirement of locating ring, can increase substantially the abrasion resistant effect of locating ring, extend the service life of spiral shell seat welding positioning tool.
Relative to prior art, the spiral shell seat welding positioning tool that the utility model provides comprises following beneficial effect: the spiral shell seat gland of the spiral shell seat welding positioning tool that the utility model provides is connected with base, sandwiched locating ring between spiral shell seat gland and base.Utilize spiral shell seat gland to be connected with spiral shell seat, locating ring be fastened in the spiral shell seat installing hole of oil sump, holder on base, ensure welding time, the concentricity of spiral shell seat and spiral shell seat installing hole.Because spiral shell seat gland is processed separately, processing technology escape is avoided when the screw thread of turnery processing spiral shell seat gland, and then when avoiding use, easily make spiral shell seat installing hole snap in technique escape and cause spiral shell seat to weld positioning tool run-off the straight and make the spiral shell seat after welding not concentric with spiral shell seat installing hole.On the other hand, because locating ring and spiral shell seat installing hole come in contact, wear and tear, locating ring is adopted carbide alloy locating ring, effectively decrease the wearing and tearing of locating ring, locating ring is made to keep concentric with spiral shell seat installing hole, and then ensure the concentric of spiral shell seat welding positioning tool and spiral shell seat installing hole, make the spiral shell seat after welding concentric with spiral shell seat installing hole.
Adopt the utility model to improve positioning precision and the service life of spiral shell seat welding positioning tool, and then decrease the concentric error of spiral shell seat and spiral shell seat installing hole, thoroughly solve the oil sump oil accident caused due to spiral shell seat relative spiral shell seat installing hole welding decentraction.
Accompanying drawing explanation
In order to clearer explanation the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the spiral shell seat welding positioning tool that the utility model first embodiment provides;
Fig. 2 is the assembling schematic diagram of the spiral shell seat welding positioning tool that the utility model second embodiment provides;
Fig. 3 is the exploded perspective view of the spiral shell seat welding positioning tool that Fig. 2 provides;
Fig. 4 is the assembling schematic diagram of the spiral shell seat welding positioning tool that the utility model the 3rd embodiment provides;
Fig. 5 is the schematic top plan view of the base of the spiral shell seat welding positioning tool that Fig. 4 provides;
Fig. 6 is the exploded perspective view of the spiral shell seat welding positioning tool that Fig. 4 provides.
Wherein, the corresponding relation between Reference numeral and component names is as follows: spiral shell seat gland 101, locating ring 102, base 103, threaded mandrel 104, screwed hole 105, fixed axis 106.
Detailed description of the invention
Oil sump is the Lower Half of crankcase, is also called lower crankcase.Also purge cock is housed in the bottom of oil sump.Purge cock passes the spiral shell seat installing hole of oil sump and fixes with the spiral shell seat of oil sump inside.Spiral shell seat to be welded on oil sump and to be communicated with spiral shell seat installing hole, and the welding quality of spiral shell seat will directly have influence on seal degree and the service life of oil sump.Generally position by a welding tooling concentricity that welding ensures spiral shell seat and spiral shell seat installing hole time spiral shell seat welds with oil sump.
But be through the discovery that studies for a long period of time of researcher, existing welding tooling must Cutting Process escape when making, and in actual use procedure, spiral shell seat installing hole is easy to snap in technique escape, cause welding tooling bias to tilt, and then cause spiral shell seat and spiral shell seat installing hole decentraction.In addition, the part that existing welding tooling coordinates with oil sump is is in use worn and torn larger, easy generation wearing and tearing cause positioning gap excessive, spiral shell seat and spiral shell seat installing hole decentraction when the welding tooling of distortion also can cause positioning welding, make the spiral shell seat after welding and spiral shell seat installing hole decentraction, cause purge cock to be subject to the interference of spiral shell seat installing hole when assembling with spiral shell seat, after causing purge cock to assemble, plug screw supporting surface is not parallel with corresponding oil sump plane, occurs leakage of oil.
The utility model provides a kind of spiral shell seat welding positioning tool to improve the problems referred to above.
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
In the utility model, first, second, third, etc. are difference signal, are not limit.
Fig. 1 is the structural representation of the spiral shell seat welding positioning tool that the utility model first embodiment provides; As shown in Figure 1, the spiral shell seat welding positioning tool that the utility model first embodiment provides comprises the base 103 of spiral shell seat gland 101, locating ring 102 and column, and the side of base 103 is provided with the otch being convenient to fixture gripping, and one end of base 103 is provided with boss.The side of spiral shell seat gland 101 is provided with the screw thread for coordinating with spiral shell seat, and spiral shell seat gland 101 is connected with one end being provided with boss of base 103.Be folded with locating ring 102 between spiral shell seat gland 101 and boss, locating ring 102 is carbide alloy locating ring.
The spiral shell seat gland 101 of the spiral shell seat welding positioning tool of the present embodiment is connected with base 103, sandwiched locating ring 102 between spiral shell seat gland 101 and the end 103.When welding, utilize the screw thread in spiral shell seat gland 101 to carry out screw-threaded engagement with the screw thread of spiral shell seat to be connected, locating ring 102 is fastened in the spiral shell seat installing hole of oil sump, locating ring 102 keeps concentric with spiral shell seat installing hole, holder is on base 103, spiral shell seat in oil sump is welded, utilizes spiral shell seat to weld the concentricity of spiral shell seat and spiral shell seat installing hole when positioning tool ensures to weld.
In the present embodiment, because spiral shell seat gland 101 is processed separately, do not need processing technology escape when the screw thread of turnery processing spiral shell seat gland 101.Therefore on spiral shell seat welding positioning tool, eliminate technique escape, and then when avoiding spiral shell seat welding positioning tool use, easily make oil sump snap in technique escape and cause spiral shell seat to weld positioning tool run-off the straight.The spiral shell seat welding positioning tool tilted makes the spiral shell seat after welding not concentric with spiral shell seat installing hole, when purge cock and spiral shell seat are installed, the plug screw supporting surface of purge cock and the run-off the straight of oil sump installed surface, oil sump interferes purge cock and makes the spiral shell seat of oil sump occur oil leakage phenomenon.
On the other hand, because locating ring 102 and oil sump come in contact, wear and tear, locating ring 102 is adopted carbide alloy locating ring, effectively decrease the wearing and tearing of locating ring 102, locating ring 102 is made to keep concentric with spiral shell seat installing hole, and then ensure the concentric of spiral shell seat welding positioning tool and spiral shell seat installing hole, make the spiral shell seat after welding concentric with spiral shell seat installing hole.
Locating ring 102 is the keys ensureing spiral shell seat welding positioning tool, locating ring 102 is seated in spiral shell seat installing hole, agree with spiral shell seat installing hole, ensure the concentricity of locating ring 102 and spiral shell seat installing hole, and then guarantee the concentricity of spiral shell seat welding positioning tool and spiral shell seat installing hole, then guarantee to be arranged on the concentricity that spiral shell seat welds spiral shell seat on positioning tool and spiral shell seat installing hole further.If locating ring 102, because of wearing and tearing, deformation occurs, locating ring 102 is placed in spiral shell seat installing hole and shakes or offset, and directly will affect the concentricity of spiral shell seat and spiral shell seat installing hole.Therefore locating ring 102 adopts carbide alloy locating ring to improve the hardness of locating ring 102, reduces the wearing and tearing of locating ring 102, improves positioning precision and the service life of spiral shell seat welding positioning tool.
The spiral shell seat welding positioning tool that the present embodiment provides improves positioning precision and the service life of spiral shell seat welding positioning tool, and then decrease the concentric error of spiral shell seat and spiral shell seat installing hole, thoroughly solve the oil accident caused due to spiral shell seat relative spiral shell seat installing hole welding decentraction.
Fig. 2 is the assembling schematic diagram of the spiral shell seat welding positioning tool that the utility model second embodiment provides; Fig. 3 is the exploded perspective view of the spiral shell seat welding positioning tool that Fig. 2 provides; As Figure 2-3, the spiral shell seat welding positioning tool that the utility model second embodiment provides welds on the basis of positioning tool at the spiral shell seat that the first embodiment provides, further, spiral shell seat gland 101 one end is provided with the threaded mandrel 104 of the axis direction along spiral shell seat gland 101, and the outside of threaded mandrel 104 is provided with external screw thread.Base 103 offers the screwed hole 105 for holding threaded mandrel 104, is provided with the internal thread for engaging with external screw thread in screwed hole 105.Threaded mandrel 104 through locating ring 102, and is screwed in screwed hole 105 by the engagement of screw thread.
Utilize engaging of external screw thread and internal thread threaded mandrel 104 and screwed hole 105 can be locked, what realize spiral shell seat gland 101 and base 103 is fixing.And threaded mandrel 104 is through locating ring 102, the movement of restriction locating ring 102, makes locating ring 102 offset, makes spiral shell seat gland 101, locating ring 102, base 103 be in concentric position.Ensure that the concentric of the spiral shell seat after welding and spiral shell seat installing hole, avoid oil sump to occur oil leakage phenomenon.
Simultaneously, due to spiral shell seat welding positioning tool in use mainly occur wearing and tearing be locating ring 102, therefore, after there is abrasion deformation when locating ring 102, by spiral shell seat gland 101 and base 103 removably connecting to dismantle and separate by external screw thread and internal thread, the locating ring 102 between replacing spiral shell seat gland 101 and base 103 can meet instructions for use.And do not need to carry out integral replacing to spiral shell seat welding positioning tool, save the maintenance cost of spiral shell seat welding positioning tool.
In industry assembling, screw thread takes right-handed thread usually, because the direction that right-handed thread screws and the direction unscrewed meet ergonomics more, it is more convenient and comfortable to use, therefore, the screw thread of spiral shell seat gland 101 is right-handed thread, more smooth and easy and convenient in order to spiral shell seat gland 101 and spiral shell seat can be made to screw.
The screw thread of spiral shell seat gland 101 is right-handed thread, in use, by screwing as dextrorotation of spiral shell seat gland 101 and spiral shell seat, unscrews as left-handed, and relative, and the internal thread in the external screw thread in threaded mandrel 104 and screwed hole 105 is left hand thread.Because if the internal thread of the external screw thread of threaded mandrel 104 and screwed hole 105 is also right-handed thread, then the direction that unscrews of external screw thread and internal thread is also left-handed.Time spiral shell seat gland 101 and spiral shell seat are unscrewed and adopt left-handed, left-handed direction is identical with the direction that threaded mandrel 104 and screwed hole 105 unscrew, be easy to first threaded mandrel 104 and screwed hole 105 unscrewed and cause spiral shell seat gland 101 and base 103 to depart from, spiral shell seat gland 101 is trapped in spiral shell seat.
The spiral shell seat welding positioning tool adopting the present embodiment to provide carries out welding of spiral shell seat and oil sump, measures the concentricity of the spiral shell seat welded in 1,000 oil sumps and spiral shell seat locating hole.After drawing the spiral shell seat welding positioning tool welding utilizing the present embodiment to provide after experiment, to be less than 0.30 be 98.52% to concentricity, and the concentricity after the welding tooling welding of the employing routine provided than prior art is less than 0.30 70.67% to significantly improve.
Fig. 4 is the assembling schematic diagram of the spiral shell seat welding positioning tool that the utility model the 3rd embodiment provides; Fig. 5 is the schematic top plan view of the base of the spiral shell seat welding positioning tool that Fig. 4 provides; Fig. 6 is the exploded perspective view of the spiral shell seat welding positioning tool that Fig. 4 provides.As Figure 4-Figure 6, the spiral shell seat welding positioning tool that the utility model the 3rd embodiment provides welds on the basis of positioning tool at the spiral shell seat that the first embodiment provides, further, boss is provided with the fixed axis 106 along the Axis Extension of base 103, the cross section of fixed axis 106 is non-circular, cross section is preferably square in the present embodiment, also can be that other are non-circular for equilateral triangle, polygon, ellipse etc.Spiral shell seat gland 101 and locating ring 102 are equipped with the through hole agreed with fixed axis 106.
The cross section of fixed axis 106 is non-circular, is inserted by fixed axis 106 in spiral shell seat gland 101 and locating ring 102, coordinates with the through hole of spiral shell seat gland 101 and locating ring 102.The cross section of fixed axis 106 is non-circular, achieves the Profile Connection of fixed axis 106 and spiral shell seat gland 101 and locating ring 102.Profile Connection is higher compared with other connecting mode intensity and do not have stress to concentrate, and avoids fixed axis 106 because be subject to stress concentrate and rupture, and extends the service life that spiral shell seat welds positioning tool.
Because foursquare each length of side is equal, when therefore the cross section of fixed axis 106 is square, the processing of fixed axis 106 more fast, conveniently, improves spiral shell seat welding positioning tool production efficiency.Line can be adopted in production to cut the mode of fixed axis 106.And foursquare four angles are right angle, when transmitting torque, everywhere stressed more even on fixed axis 106, there will not be the phenomenon that stress is concentrated, avoid the concentrated wear of fixed axis 106, cracking, extend the service life of spiral shell seat welding positioning tool further.
In the present embodiment, fixed axis 106 respectively with the through hole interference fit of spiral shell seat gland 101 and locating ring 102.Fixed axis 106 is inserted in the through hole of spiral shell seat gland 101 and locating ring 102, and with the through hole interference fit in spiral shell seat gland 101 and locating ring 102.Be interference fitted in and ensure that spiral shell seat gland 101 is combined with base 103 firmly under prerequisite, make not need during production to process extra fixed structure in spiral shell seat gland 101 and locating ring 102, and just can realize the fixing of spiral shell seat gland 101 and base 103 by simply assembled, assemble convenient.Simplify the technological process of production, assembling spiral shell seat welding positioning tool, reduce the processing cost of spiral shell seat welding positioning tool, improve the production efficiency of spiral shell seat welding positioning tool.
The spiral shell seat that the spiral shell seat welding positioning tool that the utility model the 4th embodiment provides provides in the 3rd embodiment welds on the basis of positioning tool, and further, spiral shell seat gland 101 is welded with fixed axis 106.When occurring to loosen in order to avoid spiral shell seat gland 101 and fixed axis 106 and make to weld, spiral shell seat is fixing unstable, and then cause spiral shell seat to occur deviation with spiral shell seat installing hole is concentric, spiral shell seat gland 101 and fixed axis 106 are welded and fixed by the mode of spot welding, make spiral shell seat gland 101 and fixed axis 106 strong bonded.
In like manner, in the present embodiment, when occurring to loosen in order to avoid spiral shell seat gland 101 and fixed axis 106 and make to weld, spiral shell seat is fixing unstable, spiral shell seat gland 101 being welded with fixed axis 106, also spiral shell seat gland 101 and fixed axis 106 can be fixed by the mode of glueing joint except adopting.The fixed form of glueing joint is meeting under prerequisite spiral shell seat gland 101 and fixed axis 106 fixedly secured, and has fixed speed fast, the simple advantage of technique, substantially increases production and the packaging efficiency of spiral shell seat welding positioning tool.And glueing joint is carry out at normal temperatures, do not need the temperature improving spiral shell seat gland 101, locating ring 102 and base 103, avoid spiral shell seat gland 101, locating ring 102 and base 103 that thermal strain occurs and cause spiral shell seat welding positioning tool to deform, and when causing welding spiral shell seat and spiral shell seat installing hole concentric deviation becomes greatly, make purge cock installation leakage of oil afterwards.
The spiral shell seat welding positioning tool that the utility model the 5th embodiment provides is on the basis of above-described embodiment, and the spiral shell seat preferably provided in the second embodiment welds on the basis of positioning tool, and further, locating ring 102 is YD201 locating ring.The hardness of locating ring 102 is HRC66-70, is preferably HRC68 at the present embodiment, certainly, also can be HRC66 or HRC70.
YD201 is a kind of domestic trade mark of carbide alloy, and be equivalent to ISO grouping code name K20, its density is 14.89g/cm3, bending strength 1800Mpa.YD201 has high strength and high rigidity, anti abrasive characteristic, meet the requirement of the technological parameter of locating ring 102, YD201 locating ring decreases the wearing and tearing of locating ring 102, slow down the deformation of locating ring 102, ensure that the concentricity of spiral shell seat and spiral shell seat installing hole, extend the service life of locating ring 102, and only have locating ring 102 to adopt YD201, other structures adopt conventional metal material, the spiral shell seat welding positioning tool cost that the present embodiment provides can not increase too much.
Because YD201 material itself has the characteristic of high rigidity, selection hardness is the YD201 locating ring scope of HRC66-70, and be preferably HRC68, namely the material of locating ring 102 is YD201 material HRC68.
HRC is a kind of scale of Rockwell hardness, and scale the most frequently used in Rockwell hardness is HRC, HRB and HRF, and wherein HRC scale is for testing hardened steel, tempered steel, quenched and tempered steel and part stainless steel.This is that metal-working industry applies maximum hardness test methods.HRB scale is for testing various annealed steel, normalized steel, mild steel, part stainless steel and harder copper alloy.HRF scale is for testing fine copper, softer copper alloy and duralumin, hard alumin ium alloy.
The hardness of HRC68 selected by locating ring 102, when excessive cost can not be improved and increase technique, meet spiral shell seat welding positioning tool to the hardness requirement of locating ring 102, the abrasion resistant effect of locating ring 102 can be increased substantially, extend the service life of spiral shell seat welding positioning tool.
The spiral shell seat welding positioning tool adopting the present embodiment to provide carries out welding of spiral shell seat and oil sump, measures the concentricity of the spiral shell seat welded in 1,000 oil sumps and spiral shell seat locating hole.Showing after experiment that the concentricity of spiral shell seat and the spiral shell seat installing hole after the spiral shell seat welding positioning tool welding utilizing the present embodiment to provide is less than 0.30 is 99.74%, and the concentricity after the welding tooling of the employing routine provided than prior art welds is less than 0.30 70.67% to significantly improve.
Simultaneously, the locating ring 102 choosing HRC66, HRC67, HRC68, HRC69 tetra-kinds of hardness is respectively tested, the content of experiment is utilize the spiral shell seat of the locating ring 102 of different hardness to weld positioning tool respectively to weld spiral shell seat on 1,000 oil sumps, qualification rate, locating ring wear rate and qualification rate that spiral shell seat and the concentricity of spiral shell seat installing hole after the spiral shell seat welding positioning tool welding of the locating ring 102 of hardness is often planted in comparison are less than 0.30 weld the ratio of positioning tool cost with spiral shell seat, and through testing, to obtain data as follows:
Locating ring 102 is the qualification rate of the spiral shell seat welding positioning tool of HRC66 is 98.37%, and locating ring wear rate is 0.027%, and qualification rate welds positioning tool cost ratio with spiral shell seat is 0.267;
Locating ring 102 is the qualification rate of the spiral shell seat welding positioning tool of HRC67 is 98.52%, and locating ring wear rate is 0.023%, and qualification rate welds positioning tool cost ratio with spiral shell seat is 0.284;
Locating ring 102 is the qualification rate of the spiral shell seat welding positioning tool of HRC68 is 99.74%, and locating ring wear rate is 0.021%, and qualification rate welds positioning tool cost ratio with spiral shell seat is 0.308.
After the ratio welding positioning tool cost when qualification rate with spiral shell seat is greater than 0.3, the benefit that the qualification rate being greater than oil sump that increases spiral shell seat welding positioning tool cost improves and brings, utilize locating ring 102 to be the qualification rate of oil sump after the spiral shell seat welding positioning tool welding of HRC68 has been 99.74% simultaneously, adopt locating ring 102 be HRC69 or HRC70 spiral shell seat welding positioning tool qualification rate can't improve a lot, therefore locating ring 102 is HRC69 and locating ring 102 be HRC70 spiral shell seat weld positioning tool do not need test.
Can be drawn by experimental data, employing locating ring 102 is that the oil sump qualification rate that the spiral shell seat welding positioning tool of HRC68 carries out welding is the highest, and qualification rate welds positioning tool cost ratio with spiral shell seat is 0.308, just slightly larger than 0.3, brings greatest benefit.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a spiral shell seat welding positioning tool, it is characterized in that, comprise the base of spiral shell seat gland, locating ring and column, the side of described base is provided with the otch being convenient to fixture gripping, one end of described base is provided with boss, and described spiral shell seat gland is provided with the screw thread for coordinating with spiral shell seat, and described spiral shell seat gland is connected with one end being provided with boss of described base, be folded with described locating ring between described spiral shell seat gland and described boss, described locating ring is carbide alloy locating ring.
2. spiral shell seat welding positioning tool according to claim 1, it is characterized in that, described spiral shell seat gland one end is provided with the threaded mandrel of the axis direction along described spiral shell seat gland, described threaded mandrel is provided with external screw thread, described base offers the screwed hole for holding described threaded mandrel, be provided with the internal thread for engaging with described external screw thread in described screwed hole, described threaded mandrel is passed described locating ring and is stretched in described screwed hole.
3. spiral shell seat welding positioning tool according to claim 2, it is characterized in that, the screw thread of described spiral shell seat gland is right-handed thread, and described external screw thread and described internal thread are left hand thread.
4. spiral shell seat welding positioning tool according to claim 1, it is characterized in that, described boss is provided with the fixed axis of the axis direction along described base, and the cross section of described fixed axis is non-circular, and described spiral shell seat gland and described locating ring are equipped with the through hole agreed with described fixed axis.
5. spiral shell seat welding positioning tool according to claim 4, is characterized in that, the cross section of described fixed axis is square.
6. spiral shell seat according to claim 4 welding positioning tool, is characterized in that, described fixed axis respectively with the through hole interference fit of described spiral shell seat gland and described locating ring.
7. spiral shell seat welding positioning tool according to claim 6, it is characterized in that, described spiral shell seat gland is welded with described fixed axis.
8. spiral shell seat welding positioning tool according to claim 6, it is characterized in that, described spiral shell seat gland and described fixed axis glued joint.
9. the spiral shell seat welding positioning tool according to claim 1-8 any one, it is characterized in that, described locating ring is YD201 locating ring.
10. spiral shell seat welding positioning tool according to claim 9, it is characterized in that, the hardness of described locating ring is HRC66-70.
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| CN201520095383.5U CN204621427U (en) | 2015-02-10 | 2015-02-10 | Spiral shell seat welding positioning tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588953A (en) * | 2015-02-10 | 2015-05-06 | 泉州市双塔汽车零件有限公司 | Screw seat welding positioning tooling |
| CN114833413A (en) * | 2020-12-16 | 2022-08-02 | 中国航发常州兰翔机械有限责任公司 | Clamp for welding screw base of radial diffuser and vacuum brazing process of clamp |
-
2015
- 2015-02-10 CN CN201520095383.5U patent/CN204621427U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588953A (en) * | 2015-02-10 | 2015-05-06 | 泉州市双塔汽车零件有限公司 | Screw seat welding positioning tooling |
| CN114833413A (en) * | 2020-12-16 | 2022-08-02 | 中国航发常州兰翔机械有限责任公司 | Clamp for welding screw base of radial diffuser and vacuum brazing process of clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150909 Effective date of abandoning: 20170714 |
|
| AV01 | Patent right actively abandoned |