CN104843071A - Aluminous alloy frame and manufacturing method thereof - Google Patents
Aluminous alloy frame and manufacturing method thereof Download PDFInfo
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- CN104843071A CN104843071A CN201510223164.5A CN201510223164A CN104843071A CN 104843071 A CN104843071 A CN 104843071A CN 201510223164 A CN201510223164 A CN 201510223164A CN 104843071 A CN104843071 A CN 104843071A
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- girder
- cutting edge
- side clamping
- riser
- clamping plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
Abstract
An aluminous alloy frame comprises a main beam and a reinforcing beam, wherein the main beam is an I-beam, the bottom of the front end of the main beam is cut to form a cut edge, the cut edge is fixedly connected with the reinforcing beam, the main beam comprises an upper web plate, a vertical plate and a lower web plate, the middle of the upper web plate is fixedly connected with the middle of the lower web plate through the vertical plate to form an I-beam structure, and the cut edge is located at the front end of the vertical plate. The reinforcing beam is identical to the cut edge in bending radian and comprises two parallelly-arranged side clamping plates and a base plate, wherein the two side clamping plates are vertically connected with the base plate, and an adhesive groove is formed between the two side clamping plates and close to the position of the base plate. The two side clamping plates are respectively arranged on two sides of the cut edge, the middles of the two side clamping plates are in riveted connection with the vertical plate along the cut edge through multiple rivets, the cut edge is in adhered connection with the adhesive groove, and the tail end of the base plate is welded with the front end of the lower web plate. The aluminous alloy frame is high in mechanical strength, long in service life and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of chassis frame structure, particularly relate to a kind of aluminium alloy bicycle frame and preparation method thereof, be specifically applicable to strengthen the intensity of unloading of vehicle frame, extend vehicle frame service life.
Background technology
Chassis side rail is the important bearing part of vehicle, and traditional steel structure vehicle body many employings U-shaped blanked part, as longeron, often adopts " work " font extrudate as chassis side rail for weight-saving aluminum alloy vehicular.Consistent with the height at rear portion in the middle part of chassis side rail, but its front height changes to some extent, normally ensure that the upper surface of longeron is consistent, and the following of leading portion raises gradually before backward, this structure can adopt steel plate punched shaping for the U-shaped vehicle frame of steel structure, and aluminium alloy bicycle frame should not adopt blanked part, need to utilize aluminum alloy extrusion section bar to carry out processing and generate.
Chinese patent application publication No. is CN103042357A, and Shen Qing Publication day is job operation and the processing tool that the patent of invention on April 17th, 2013 discloses a kind of Aluminum alloy crossbeam, comprises the following steps: by Aluminum alloy crossbeam extrusion forming of I shape; Cutting web, gooseneck shape cavity is formed between web and lower wing plate, described gooseneck shape cavity comprises horizontal part, the first rake and the second rake successively, described horizontal part top and described lower interplane distance are the 3/8-5/8 of described web height, angle between described first rake top and horizon is 3-30 °, and the angle between described second rake top and horizon is 15-60 °; By the stentplacement of frock in described lower wing plate both sides, the pressure handle that frock top inner side is connected with jack is just to lower wing plate; Open frock, fitted in the lower wing plate of bottom, described gooseneck shape cavity and top, described gooseneck shape cavity.Although this invention can solve the moulding problem of aluminium alloy bicycle frame longeron, still there is following defect in it:
1, the longeron front height of this invention diminishes, and the thickness of web is constant, causes longeron front end robot intensity to reduce, and load-carrying ability is poor.
2, this invention lower wing plate with depend merely on welding between web and be connected, the intensity of its weld is about 70% of base material, and there is the risk of welding deformation, and then causes longeron front end robot intensity low, the problem of poor reliability.
Summary of the invention
The object of the invention is to overcome the problem that the mechanical strength that exists in prior art is low, aluminium alloy bicycle frame that a kind of mechanical strength is high and preparation method thereof is provided.
For realizing above object, technical solution of the present invention is:
A kind of aluminium alloy bicycle frame, comprise girder and strength beam, described girder is H-girder, and the bottom of girder front end is formed with cutting edge through cutting, and described cutting edge is fixedly connected with strength beam,
Described girder comprises epiplastron, riser and bottom web, and the middle part of described epiplastron is fixedly connected to form structural I-beam by the middle part of riser and bottom web, and described cutting edge is positioned at the front end of riser;
Described strength beam is identical with the crooked radian of cutting edge, and strength beam comprises two the side clamping plate and base plate that be arranged in parallel, and two side clamping plate are all vertical with base plate to be connected, and between described two side clamping plate, nearly base plate place offers adhesive glassine tank;
Described two side clamping plate are arranged at the both sides of cutting edge respectively, and the middle part of two side clamping plate is riveted along cutting edge and riser mutually by multiple rivet, and described cutting edge is mutually bonding with adhesive glassine tank by viscose glue, and the tail end of described base plate welds mutually with the front end of bottom web.
The top of described two side clamping plate is welded mutually with the left and right sidewall of riser respectively;
The thickness of described riser 12 is m millimeter, and the thickness of described two side clamping plate 21 is n millimeter, and the width of described adhesive glassine tank 24 is k millimeter, wherein 10≤m≤24,0.5m≤n≤0.5m+2, m+1≤k≤m+3.
On described riser, nearly cutting edge place evenly offers multiple girder rivet hole, the aperture of described girder rivet hole is 10 millimeters ~ 14 millimeters, the spacing of adjacent two girder rivet holes is 100 millimeters ~ 200 millimeters, the hole heart of described multiple girder rivet hole is equal to the distance of cutting edge, and the hole heart of girder rivet hole is 20 millimeters ~ 60 millimeters to the distance of cutting edge;
Described two side clamping plate all offer multiple rivet hole, and described rivet hole is identical with the aperture of girder rivet hole, position is corresponding.
Described cutting edge comprises vertical cut limit and arc trimming, described vertical cut limit parallels with epiplastron, the head end end points on vertical cut limit is positioned in the front end of line of riser, and the tail end end points on vertical cut limit and the head end end points of arc trimming coincide, and the tail end end points of arc trimming is positioned on bottom web;
Described arc trimming is circular arc line, and tangent line and the vertical cut limit at the head end end points place of arc trimming coincide, and it is on the straight line of head end end points of arc trimming that the center of circle of arc trimming is positioned at perpendicular to vertical cut limit intersection point;
The length on described vertical cut limit is a millimeter, and described arc trimming length is in the horizontal direction b millimeter, and the height of described girder in the vertical direction is c millimeter, and the described distance being directly trimmed to epiplastron end face is d millimeter, and the circular arc line radius of described arc trimming is
millimeter;
Wherein 800≤a≤2000,800≤b≤2000,2000≤a+b≤4000,200≤c≤400,100≤d≤150.
Described viscose glue is epoxy structural rubber, structural silicone adhesive, acrylate glue or polyurethane adhesive.
Described girder and strength beam are aluminum alloy material, all adopt arc welding, ion arc-welding, electron beam welding or laser beam welding between side clamping plate and riser, between base plate and bottom web.
Described epiplastron and riser, riser and bottom web, junction between side clamping plate and base plate are provided with fillet.
A kind of aluminium alloy bicycle frame method for making, comprises girder processing, strength beam processing and chassis frame and assembles three steps;
The first step: girder is processed, and first using the base material of aluminium alloy extruded one-tenth structural I-beam as girder, obtains each parameter draw line of cut in one end of H-girder according to vertical cut limit and arc trimming; Then utilize cutting machine along the corner of line of cut excision H-girder one end, now form the girder with cutting edge, now girder machines;
Second step: strength beam is processed, first using the base material of aluminium alloy extruded one-tenth " no " word girder construction as strength beam, now adhesive glassine tank extrusion forming; Then utilize angle bender to be bent by the base material of strength beam, now the bending amplitude of base plate 22 is identical with cutting edge line of cut, and two side clamping plate are positioned at the outside of base plate cambered surface, and now strength beam machines;
3rd step: chassis frame is assembled, is first coated with and spreads viscose glue in the adhesive glassine tank of the strength beam of second step gained; Then the cutting edge of girder is inserted in adhesive glassine tank, make cutting edge prop up the bottom land of adhesive glassine tank; Until viscose glue air-dry fixing after, require evenly to drill through multiple rivet hole in the overlapping region of two side clamping plate and riser along cutting edge according to pitch-row, hole to obtain a girder rivet hole and two rivet holes at every turn; Recycling rivet tool installs rivet on the hole drilled through; Finally welded in the gap between the top of the gap between the tail end of base plate and the front end of bottom web and side clamping plate and the sidewall of riser, now chassis frame has been assembled, and aluminium alloy bicycle frame completes.
Compared with prior art, beneficial effect of the present invention is:
1, dock by girder and strength beam in a kind of aluminium alloy bicycle frame of the present invention the structure gradual change realizing chassis side rail, girder is connected mainly through riveting with strength beam, welded again, bondingly carried out auxiliary connection, performance in the overall hand that the Joint strenght effectively improved between girder and strength beam improves vehicle frame.Therefore, the aluminium alloy bicycle frame of the design is connected firmly, mechanical strength is high.
2, in a kind of aluminium alloy bicycle frame of the present invention, riser is riveted mutually with the side clamping plate of both sides, adds the thickness of chassis side rail, improves the stress performance of chassis side rail, reduces the alteration of form of chassis side rail front end to the impact of vehicle frame overall mechanical properties.Therefore, the design connect reliably, good mechanical property.
3, the structure that the cutting edge in a kind of aluminium alloy bicycle frame of the present invention adopts vertical cut limit to be connected with arc trimming, cuts vertical cut limit and is positioned on the tangent line of arc trimming, make cutting edge curve smoothing, effectively improve the stress-bearing capability of chassis side rail.Therefore, the cutting edge curve smoothing of the design, vehicle frame stress-bearing capability are good.
4, the base material of a kind of aluminium alloy bicycle frame of the present invention girder and strength beam when making is blanked part, effectively improves the mechanical characteristics of chassis side rail, effectively reduces the production of longeron as cost.Therefore, excellent, the low cost of manufacture of the design's mechanical characteristics.
5, a kind of aluminium alloy bicycle frame of the present invention adopts when making and first rivets the Joining Technology welded again, can avoid welding deformation, and this method is without the need to special soldering cramping apparatus simultaneously, is of value to the quality of connection ensureing welding.Therefore, the design welds reliably, not easily deformation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of Fig. 1 middle girder.
Fig. 4 is the structural representation of strength beam in Fig. 1.
Fig. 5 is the structural representation of cutting edge in Fig. 3.
In figure: girder 1, epiplastron 11, riser 12, bottom web 13, cutting edge 14, girder rivet hole 15, vertical cut limit 16, arc trimming 17, strength beam 2, side clamping plate 21, base plate 22, rivet hole 23, adhesive glassine tank 24, rivet 3, viscose glue 4.
Detailed description of the invention
Illustrate that the present invention is further detailed explanation with detailed description of the invention below in conjunction with accompanying drawing.
See Fig. 1 ~ Fig. 5, a kind of aluminium alloy bicycle frame, comprises girder 1 and strength beam 2, and described girder 1 is H-girder, and the bottom of girder 1 front end is formed with cutting edge 14 through cutting, and described cutting edge 14 is fixedly connected with strength beam 2,
Described girder 1 comprises epiplastron 11, riser 12 and bottom web 13, and the middle part of described epiplastron 11 is fixedly connected to form structural I-beam by riser 12 and the middle part of bottom web 13, and described cutting edge 14 is positioned at the front end of riser 12;
Described strength beam 2 is identical with the crooked radian of cutting edge 14, and strength beam 2 comprises two side clamping plate 21 be arranged in parallel and base plate 22, two side clamping plate 21 are all connected with base plate 22 is vertical, and between described two side clamping plate 21, nearly base plate 22 place offers adhesive glassine tank 24;
Described two side clamping plate 21 are arranged at the both sides of cutting edge 14 respectively, article two, the middle part of side clamping plate 21 is riveted along cutting edge 14 and riser 12 phase by multiple rivet 3, described cutting edge 14 is mutually bonding with adhesive glassine tank 24 by viscose glue 4, and the tail end of described base plate 22 welds mutually with the front end of bottom web 13.
The top of described two side clamping plate 21 is welded mutually with the left and right sidewall of riser 12 respectively;
The thickness of described riser 12 is m millimeter, and the thickness of described two side clamping plate 21 is n millimeter, and the width of described adhesive glassine tank 24 is k millimeter, wherein 10≤m≤24,0.5m≤n≤0.5m+2, m+1≤k≤m+3.
On described riser 12, nearly cutting edge 14 place evenly offers multiple girder rivet hole 15, the aperture of described girder rivet hole 15 is 10 millimeters ~ 14 millimeters, the spacing of adjacent two girder rivet holes 15 is 100 millimeters ~ 200 millimeters, the hole heart of described multiple girder rivet hole 15 is equal to the distance of cutting edge 14, and the hole heart of girder rivet hole 15 is 20 millimeters ~ 60 millimeters to the distance of cutting edge 14;
Described two side clamping plate 21 all offer multiple rivet hole 23, and described rivet hole 23 is identical with the aperture of girder rivet hole 15, position is corresponding.
Described cutting edge 14 comprises vertical cut limit 16 and arc trimming 17, described vertical cut limit 16 parallels with epiplastron 11, the head end end points on vertical cut limit 16 is positioned in the front end of line of riser 12, the tail end end points on vertical cut limit 16 and the head end end points of arc trimming 17 coincide, and the tail end end points of arc trimming 17 is positioned on bottom web 13;
Described arc trimming 17 is circular arc line, and tangent line and the vertical cut limit 16 at the head end end points place of arc trimming 17 coincide, and it is on the straight line of head end end points of arc trimming 17 that the center of circle of arc trimming 17 is positioned at perpendicular to vertical cut limit 16 intersection point;
The length on described vertical cut limit 16 is a millimeter, described arc trimming 17 length is in the horizontal direction b millimeter, the height of described girder 1 in the vertical direction is c millimeter, and described vertical cut limit 16 is d millimeter to the distance of epiplastron 11 end face, and the circular arc line radius of described arc trimming 17 is
millimeter;
Wherein 800≤a≤2000,800≤b≤2000,2000≤a+b≤4000,200≤c≤400,100≤d≤150.
Described viscose glue 4 is epoxy structural rubber, structural silicone adhesive, acrylate glue or polyurethane adhesive.
Described girder 1 and strength beam 2 are aluminum alloy material, all adopt arc welding, ion arc-welding, electron beam welding or laser beam welding between side clamping plate 21 and riser 12, between base plate 22 and bottom web 13.
Described epiplastron 11 and riser 12, riser 12 and bottom web 13, junction between side clamping plate 21 and base plate 22 are provided with fillet.
A kind of aluminium alloy bicycle frame method for making, comprises girder processing, strength beam processing and chassis frame and assembles three steps;
The first step: girder is processed, first using the base material of aluminium alloy extruded one-tenth structural I-beam as girder 1, obtains each parameter in one end of H-girder according to vertical cut limit 16 and arc trimming 17 and draws line of cut; Then utilize cutting machine along the corner of line of cut excision H-girder one end, now form the girder 1 with cutting edge 14, now girder 1 machines;
Second step: strength beam is processed, first using the base material of aluminium alloy extruded one-tenth " no " word girder construction as strength beam 2, now adhesive glassine tank 24 extrusion forming; Then utilize angle bender to be bent by the base material of strength beam 2, now the bending amplitude of base plate 22 is identical with cutting edge 14 line of cut, and two side clamping plate 21 are positioned at the outside of base plate 22 cambered surface, and now strength beam 2 machines;
3rd step: chassis frame is assembled, is first coated with and spreads viscose glue 4 in the adhesive glassine tank 24 of the strength beam 2 of second step gained; Then the cutting edge 14 of girder 1 is inserted in adhesive glassine tank 24, make cutting edge 14 prop up the bottom land of adhesive glassine tank 24; Until viscose glue 4 air-dry fixing after, require evenly to drill through multiple rivet hole at two side clamping plate 21 and the overlapping region of riser 12 along cutting edge 14 according to pitch-row, each boring can obtain a girder rivet hole 15 and two rivet holes 23; Recycling rivet tool installs rivet on the hole drilled through; Finally welded in the gap between the top of the gap between the tail end of base plate 22 and the front end of bottom web 13 and side clamping plate 21 and the sidewall of riser 12, now chassis frame has been assembled, and aluminium alloy bicycle frame completes.
Principle of the present invention is described as follows:
In the manufacture method of the design, first adopt bonding way, the relative position of fixing girder 1 and strength beam 2, then hole and girder 1 and strength beam 2 riveted, finally the gap between girder 1 with strength beam 2 is welded; Whole process completes riveted joint without the need to auxiliary locating tool and welds, and effectively prevents welding deformation.
Embodiment 1:
A kind of aluminium alloy bicycle frame, comprise girder 1 and strength beam 2, described girder 1 is H-girder, the bottom of girder 1 front end is formed with cutting edge 14 through cutting, described cutting edge 14 is fixedly connected with strength beam 2, described girder 1 comprises epiplastron 11, riser 12 and bottom web 13, and the middle part of described epiplastron 11 is fixedly connected to form structural I-beam by riser 12 and the middle part of bottom web 13, and described cutting edge 14 is positioned at the front end of riser 12; Described strength beam 2 is identical with the crooked radian of cutting edge 14, and strength beam 2 comprises two side clamping plate 21 be arranged in parallel and base plate 22, two side clamping plate 21 are all connected with base plate 22 is vertical, and between described two side clamping plate 21, nearly base plate 22 place offers adhesive glassine tank 24; Described two side clamping plate 21 are arranged at the both sides of cutting edge 14 respectively, article two, the middle part of side clamping plate 21 is riveted along cutting edge 14 and riser 12 phase by multiple rivet 3, described cutting edge 14 is mutually bonding with adhesive glassine tank 24 by viscose glue 4, and the tail end of described base plate 22 welds mutually with the front end of bottom web 13; The top of described two side clamping plate 21 is welded mutually with the left and right sidewall of riser 12 respectively; The thickness of described riser 12 is m millimeter, and the thickness of described two side clamping plate 21 is n millimeter, and the width of described adhesive glassine tank 24 is k millimeter, wherein 10≤m≤24,0.5m≤n≤0.5m+2, m+1≤k≤m+3; On described riser 12, nearly cutting edge 14 place evenly offers multiple girder rivet hole 15, the aperture of described girder rivet hole 15 is 10 millimeters ~ 14 millimeters, the spacing of adjacent two girder rivet holes 15 is 100 millimeters ~ 200 millimeters, the hole heart of described multiple girder rivet hole 15 is equal to the distance of cutting edge 14, and the hole heart of girder rivet hole 15 is 20 millimeters ~ 60 millimeters to the distance of cutting edge 14; Described two side clamping plate 21 all offer multiple rivet hole 23, and described rivet hole 23 is identical with the aperture of girder rivet hole 15, position is corresponding; Described cutting edge 14 comprises vertical cut limit 16 and arc trimming 17, described vertical cut limit 16 parallels with epiplastron 11, the head end end points on vertical cut limit 16 is positioned in the front end of line of riser 12, the tail end end points on vertical cut limit 16 and the head end end points of arc trimming 17 coincide, and the tail end end points of arc trimming 17 is positioned on bottom web 13; Described arc trimming 17 is circular arc line, and tangent line and the vertical cut limit 16 at the head end end points place of arc trimming 17 coincide, and it is on the straight line of head end end points of arc trimming 17 that the center of circle of arc trimming 17 is positioned at perpendicular to vertical cut limit 16 intersection point; The length on described vertical cut limit 16 is a millimeter, described arc trimming 17 length is in the horizontal direction b millimeter, the height of described girder 1 in the vertical direction is c millimeter, and described vertical cut limit 16 is d millimeter to the distance of epiplastron 11 end face, and the circular arc line radius of described arc trimming 17 is
millimeter; Wherein 800≤a≤2000,800≤b≤2000,2000≤a+b≤4000,200≤c≤400,100≤d≤150; Described viscose glue 4 is epoxy structural rubber, structural silicone adhesive, acrylate glue or polyurethane adhesive; Described girder 1 and strength beam 2 are aluminum alloy material, all adopt arc welding, ion arc-welding, electron beam welding or laser beam welding between side clamping plate 21 and riser 12, between base plate 22 and bottom web 13; Described epiplastron 11 and riser 12, riser 12 and bottom web 13, junction between side clamping plate 21 and base plate 22 are provided with fillet.
A kind of aluminium alloy bicycle frame method for making, comprises girder processing, strength beam processing and chassis frame and assembles three steps;
The first step: girder is processed, first using the base material of aluminium alloy extruded one-tenth structural I-beam as girder 1, obtains each parameter in one end of H-girder according to vertical cut limit 16 and arc trimming 17 and draws line of cut; Then utilize cutting machine along the corner of line of cut excision H-girder one end, now form the girder 1 with cutting edge 14, now girder 1 machines;
Second step: strength beam is processed, first using the base material of aluminium alloy extruded one-tenth " no " word girder construction as strength beam 2, now adhesive glassine tank 24 extrusion forming; Then utilize angle bender to be bent by the base material of strength beam 2, now the bending amplitude of base plate 22 is identical with cutting edge 14 line of cut, and two side clamping plate 21 are positioned at the outside of base plate 22 cambered surface, and now strength beam 2 machines;
3rd step: chassis frame is assembled, is first coated with and spreads viscose glue 4 in the adhesive glassine tank 24 of the strength beam 2 of second step gained; Then the cutting edge 14 of girder 1 is inserted in adhesive glassine tank 24, make cutting edge 14 prop up the bottom land of adhesive glassine tank 24; Until viscose glue 4 air-dry fixing after, require evenly to drill through multiple rivet hole at two side clamping plate 21 and the overlapping region of riser 12 along cutting edge 14 according to pitch-row, each boring can obtain a girder rivet hole 15 and two rivet holes 23; Recycling rivet tool installs rivet on the hole drilled through; Finally welded in the gap between the top of the gap between the tail end of base plate 22 and the front end of bottom web 13 and side clamping plate 21 and the sidewall of riser 12, now chassis frame has been assembled, and aluminium alloy bicycle frame completes.
Embodiment 2
Embodiment 2 its difference substantially the same manner as Example 1 is:
The length a on described vertical cut limit 16 is 1000 millimeters, and described arc trimming 17 length b is in the horizontal direction 1000 millimeters, and the height c of described girder 1 in the vertical direction is 300 millimeters, and described vertical cut limit 16 is 120 millimeters to the distance of epiplastron 11 end face; The thickness m of described riser 12 is 12 millimeters, and the thickness n of described two side clamping plate 21 is 6 millimeters, and the width k of described adhesive glassine tank 24 is 14 millimeters; The aperture of girder rivet hole 15 is 12 millimeters, and the spacing of adjacent two girder rivet holes 15 is 120 millimeters, and the hole heart of girder rivet hole 15 is 30 millimeters to the distance of cutting edge 14.
Claims (8)
1. an aluminium alloy bicycle frame, comprise girder (1) and strength beam (2), described girder (1) is H-girder, the bottom of girder (1) front end is formed with cutting edge (14) through cutting, described cutting edge (14) is fixedly connected with strength beam (2), it is characterized in that:
Described girder (1) comprises epiplastron (11), riser (12) and bottom web (13), the middle part of described epiplastron (11) is fixedly connected to form structural I-beam by riser (12) and the middle part of bottom web (13), and described cutting edge (14) is positioned at the front end of riser (12);
Described strength beam (2) is identical with the crooked radian of cutting edge (14), strength beam (2) comprises two the side clamping plate (21) and base plate (22) that be arranged in parallel, article two, side clamping plate (21) are all connected with base plate (22) is vertical, and between described two side clamping plate (21), nearly base plate (22) place offers adhesive glassine tank (24);
Described two side clamping plate (21) are arranged at the both sides of cutting edge (14) respectively, article two, the middle part of side clamping plate (21) is riveted along cutting edge (14) and riser (12) mutually by multiple rivet (3), described cutting edge (14) is mutually bonding with adhesive glassine tank (24) by viscose glue (4), and the tail end of described base plate (22) welds mutually with the front end of bottom web (13).
2. a kind of aluminium alloy bicycle frame according to claim 1, is characterized in that:
The top of described two side clamping plate (21) is welded mutually with the left and right sidewall of riser (12) respectively;
The thickness of described riser (12) is m millimeter, and the thickness of described two side clamping plate (21) is n millimeter, and the width of described adhesive glassine tank (24) is k millimeter, wherein 10≤m≤24,0.5m≤n≤0.5m+2, m+1≤k≤m+3.
3. a kind of aluminium alloy bicycle frame according to claim 1 and 2, it is characterized in that: upper nearly cutting edge (14) place of described riser (12) evenly offers multiple girder rivet hole (15), the aperture of described girder rivet hole (15) is 10 millimeters ~ 14 millimeters, the spacing of adjacent two girder rivet holes (15) is 100 millimeters ~ 200 millimeters, the hole heart of described multiple girder rivet hole (15) is equal to the distance of cutting edge (14), and the hole heart of girder rivet hole (15) is 20 millimeters ~ 60 millimeters to the distance of cutting edge (14);
Described two side clamping plate (21) all offer multiple rivet hole (23), and described rivet hole (23) is identical with the aperture of girder rivet hole (15), position is corresponding.
4. a kind of aluminium alloy bicycle frame according to claim 3, it is characterized in that: described cutting edge (14) comprises vertical cut limit (16) and arc trimming (17), described vertical cut limit (16) parallels with epiplastron (11), the head end end points on vertical cut limit (16) is positioned in the front end of line of riser (12), the tail end end points on vertical cut limit (16) and the head end end points of arc trimming (17) coincide, and the tail end end points of arc trimming (17) is positioned on bottom web (13);
Described arc trimming (17) is circular arc line, tangent line and vertical cut limit (16) at the head end end points place of arc trimming (17) coincide, and it is on the straight line of the head end end points of arc trimming (17) that the center of circle of arc trimming (17) is positioned at perpendicular to vertical cut limit (16) intersection point;
The length of described vertical cut limit (16) is a millimeter, described arc trimming (17) length is in the horizontal direction b millimeter, the height of described girder (1) in the vertical direction is c millimeter, described vertical cut limit (16) is d millimeter to the distance of epiplastron (11) end face, and the circular arc line radius of described arc trimming (17) is
millimeter;
Wherein 800≤a≤2000,800≤b≤2000,2000≤a+b≤4000,200≤c≤400,100≤d≤150.
5. a kind of aluminium alloy bicycle frame according to claim 4, is characterized in that: described viscose glue (4) is epoxy structural rubber, structural silicone adhesive, acrylate glue or polyurethane adhesive.
6. a kind of aluminium alloy bicycle frame according to claim 4, it is characterized in that: described girder (1) and strength beam (2) are aluminum alloy material, all adopt arc welding, ion arc-welding, electron beam welding or laser beam welding between side clamping plate (21) and riser (12), between base plate (22) and bottom web (13).
7. a kind of aluminium alloy bicycle frame according to claim 4, is characterized in that: described epiplastron (11) and riser (12), riser (12) and bottom web (13), junction between side clamping plate (21) and base plate (22) are provided with fillet.
8. an aluminium alloy bicycle frame method for making according to claims 1 to 7, is characterized in that: described method for making comprises girder processing, strength beam processing and chassis frame and assembles three steps;
The first step: girder is processed, first using the base material of aluminium alloy extruded one-tenth structural I-beam as girder (1), obtains each parameter in one end of H-girder according to vertical cut limit (16) and arc trimming (17) and draws line of cut; Then utilize cutting machine along the corner of line of cut excision H-girder one end, now form the girder (1) with cutting edge (14), now girder (1) machines;
Second step: strength beam is processed, first using the base material of aluminium alloy extruded one-tenth " no " word girder construction as strength beam (2), now adhesive glassine tank (24) extrusion forming; Then angle bender is utilized to be bent by the base material of strength beam (2), now the bending amplitude of base plate (22) is identical with cutting edge (14) line of cut, article two, side clamping plate (21) are positioned at the outside of base plate (22) cambered surface, and now strength beam (2) machines;
3rd step: chassis frame is assembled, is first coated with and spreads viscose glue (4) in the adhesive glassine tank (24) of the strength beam (2) of second step gained; Then the cutting edge (14) of girder (1) is inserted in adhesive glassine tank (24), make cutting edge (14) prop up the bottom land of adhesive glassine tank (24); Until viscose glue (4) air-dry fixing after, require evenly to drill through multiple rivet hole two side clamping plate (21) and the overlapping region of riser (12) along cutting edge (14) according to pitch-row, each boring can obtain a girder rivet hole (15) and two rivet holes (23); Recycling rivet tool installs rivet on the hole drilled through; Finally the gap between the top of the gap between the tail end of base plate (22) and the front end of bottom web (13) and side clamping plate (21) and the sidewall of riser (12) is welded, now chassis frame has been assembled, and aluminium alloy bicycle frame completes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223164.5A CN104843071B (en) | 2015-05-05 | 2015-05-05 | A kind of aluminium alloy bicycle frame and preparation method thereof |
Applications Claiming Priority (1)
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| CN107672674A (en) * | 2017-11-10 | 2018-02-09 | 辽宁忠旺特种车辆制造有限公司 | A kind of aluminium alloy semi-trailer longitudinal beam assembly |
| CN110394606A (en) * | 2019-08-13 | 2019-11-01 | 德州豪沃机械制造有限公司 | A kind of aluminum alloy cross beam assembly processing technology |
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| CN110394606B (en) * | 2019-08-13 | 2022-05-27 | 德州豪沃机械制造有限公司 | Aluminum alloy beam assembly machining process |
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| CN104843071B (en) | 2017-03-01 |
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