CN204503859U - A kind of U-shaped beam forming machine with rack-and-pinion blank centering device - Google Patents

A kind of U-shaped beam forming machine with rack-and-pinion blank centering device Download PDF

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CN204503859U
CN204503859U CN201520115779.1U CN201520115779U CN204503859U CN 204503859 U CN204503859 U CN 204503859U CN 201520115779 U CN201520115779 U CN 201520115779U CN 204503859 U CN204503859 U CN 204503859U
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frame
rack
centering device
oil cylinder
bed die
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Chinese (zh)
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林晓强
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Abstract

The utility model discloses a kind of U-shaped beam forming machine with rack-and-pinion blank centering device, comprise platform before frame, bending oil cylinder, mold, bed die, upper demoulding oil jar, bottom knockout oil cylinder, hydraulic system, rack-and-pinion blank centering device, assist device and machine, described bending cylinder block is connected in frame; Bending cylinder piston rod is connected with mold; Described upper demoulding oil jar is connected in frame, can wear when upper demoulding oil jar piston rod is movable from mold inside; Described bed die is connected with frame with bolt by L shape pressing plate; Described bottom knockout oil cylinder back seat to be connected under frame in box-girder, piston rod is connected with stripper plate; Described assist device is connected on bed die; Described rack-and-pinion blank centering device to be connected under frame on box-girder; Described hydraulic system is arranged on upper rack or can is independently arranged near frame, connects each operating cylinder by oil circuit; Before described machine, platform is arranged on before frame charging aperture.

Description

A kind of U-shaped beam forming machine with rack-and-pinion blank centering device
Technical field
The invention belongs to machining manufacturing equipment field, refer more particularly to the special equipment of a kind of weighing apparatus production and a kind of U-shaped beam forming machine.
Background technology
As shown in Figure 1, a kind of U-lag girder steel (being called for short U-shaped beam), being important component part during existing automobile weighing scale platform manufactures, is main spandrel girder in weighing platform structure, and the automobile load of tens tons, up to a hundred tons is welded to form weighing platform to bear primarily of the U-shaped beam of these varying numbers and intensity; Different according to magnitude of load, these U-shaped depths of beam, length are different, and some thicknesss of slab are different, and some width are different; Current weighing apparatus manufacturer mainly conventional U-shaped trammel lattice is the U-shaped beams according to the supporting differing heights of different tonnage and length, highly general at 250mm to 500mm, length is generally at 4m to 9m, the each producer of width differs, general at 200mm to 300mm, it is generally identical that each producer commonly uses U-shaped beam width, also has individual product to use different in width U-shaped beam; It is all fold at the upper a lot of of bender (a kind of standard machine tool) by manually lifting band steel (blank is band steel) that existing weighing apparatus producer processes these U-shaped beams, needs multiple tracks bending to be repeatedly shaped; In conventional U-shaped beam, longer Yi Tiaoliang weighs about 400kg, and need five to six people able-bodied laborers could operate, general U-shaped beam also wants 3 ~ 4 operative, and greatly, people is many, and cost is high for labour intensity; A lot of producer has to that long beam is changed into more piece short beam and respells weldering and form, and efficiency is low, poor quality.
Summary of the invention
The object of the invention is to overcome above-mentioned prior art weak point and a kind of U-shaped beam forming machine with rack-and-pinion blank centering device is provided, it is a kind of special equipment, want technical solution problem to be: the U-shaped beam that described shaping function mould is once suppressed, the demoulding is wanted easily, reach that yield rate is high, good product quality, production efficiency are high, labour intensity is little, use labour less, save production cost.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of U-shaped beam forming machine with rack-and-pinion blank centering device, comprise platform 10 before frame 1, bending oil cylinder 2, mold 4, bed die 7, upper demoulding oil jar 3, bottom knockout oil cylinder 5, hydraulic system 30, rack-and-pinion blank centering device 8, assist device 9 and machine, described multiple bending oil cylinder 2 cylinder body is connected on the cylinder flange seat 13 of described frame 1 entablature; Described bending oil cylinder 2 piston rod is connected with described mold 4 by piston Connection Block 26; Described upper demoulding oil jar 3 cylinder body by Flange joint on the entablature 12 of frame 1, can wear from mold 4 port 41 during described upper demoulding oil jar 3 piston rod telescopic movable, when after mold 4 molding, if U-shaped beam can clamp mold, now start upper demoulding oil jar 3, upper demoulding oil jar piston rod stretches out and U-shaped beam will be pushed, and solves the upper modulus problem of folder; Described bed die 7 is connected with frame 1 with bolt 77 by L shape pressing plate 75, such permission frame upper/lower die fixing threaded hole 16 position relatively large deviation, bed die 7 can be fixed on tram, and utilize the elastic reaction of L shape pressing plate 75, bed die be connected more firm; Described multiple bottom knockout oil cylinder 5 back seat is connected in the lower box-girder 14 of frame 1, described multiple bottom knockout oil cylinder 5 piston rod is connected with stripper plate 6 by bolt through bed die 7, U-shaped beam is after bed die 7 internal shaping, tightly can be stuck in bed die groove, need bottom knockout oil cylinder 5 to head on stripper plate 6 U-shaped back out; Described assist device 9 is connected on bed die 7, when blank advances time, is pressed on the bearing 92 on assist device 9, and by the rolling of bearing 92, such travelling stock is just very easy and convenient; Described two cover rack-and-pinion blank centering devices 8 are connected on the centralising device installing port 18 of frame, and make the swing arm 81 that moves to left in rack-and-pinion blank centering device 8 be positioned at bed die 7 both sides symmetric position with the swing arm 82 that moves to right; Like this when blank propelling comes, as long as the handwheel 804 in shake rack-and-pinion blank centering device, make move to left swing arm 81 and the synchronous past interior movement of the swing arm 82 that moves to right, just blank can be moved to the center of bed die 7, complete the work of blank centering; Described hydraulic system 30 is arranged on frame 1 top or can is independently arranged near frame, is connected to bending oil cylinder 2, bottom knockout oil cylinder 5, upper demoulding oil jar 3, controls corresponding cylinder efficient by hydraulic oil pipe system by oil circuit; Before described machine, platform 10 is arranged on before frame 1 charging aperture, and blank is come by crane for hoisting, is placed on before machine above platform 10, more manually push carry out above bed die 7 compressing; When U-shaped beam is after bed die 7 demoulding, now operating personnel by small tool (as homalocephalus crowbar, or Flathead screwdriver), U-shaped beam is pried open from stripper plate 6, then bottom U-shaped beam, plug several pre-prepd little round steel (little round steel is also reused as instrument) use as roller, such operating personnel just easily can release the U-shaped beam be shaped before machine platform 10 above stripper plate 6, then hang away with crane, complete a working cycles.
Wherein, described frame 1 comprises multiple closed memorial archway 11, described closed memorial archway 11 is welded by steel plate or shaped steel, between described closed memorial archway 11, top is coupled together by the entablature 12 of Plate Welding, is welded with cylinder flange dish 13 for connecting bending oil cylinder 2 and upper demoulding oil jar 3 below described entablature 12; Between described closed memorial archway 11, bottom is coupled together by the lower box-girder 14 of Plate Welding, and described lower box-girder 14 is provided with bottom knockout oil har opening 15 and bed die fixing threaded hole 16 above; Described lower box-girder 14 inside is provided with bottom knockout cylinder support for fixing bottom knockout oil cylinder 5; Described lower box-girder 14 is provided with centralising device installing port 18 for installing stationary rack formula blank centering device 8; Be provided with lower margin hole 17 bottom described closed memorial archway 11 to can be used for being connected with foot bolt fundamentally, ensure that frame is more stable.
Wherein, described bending oil cylinder 2 cylinder body is provided with flange connecting hole 21, and piston rod is provided with spill circle 22; Described bending oil cylinder 2 piston is coupled together with bolt 27 by piston Connection Block 26 and two panels inserted sheet pin 25; Described piston Connection Block 26 is provided with piston hole 261 and cotter way 263 and screw 262; Described inserted sheet pin 25 is provided with arc groove 251 and through hole 252, the spill circle 22 on the arc groove 251 seized piston bar on inserted sheet pin, and such bending oil cylinder 2 has connected with piston Connection Block 26.
Wherein, described mold 4 becomes box girder structure by Plate Welding, arranges one or two ports 41 at mold 4 near middle, and the piston rod of upper demoulding oil jar 3 can pass from these ports 41, plays demoulding effect; Piston Connection Block 26 is welded on above described mold 4.
Wherein, described bed die 7 is welded by two pieces of risers 71 and base plate 72 and some gussets 73; Described base plate being arranged large round mouth 74, extending there through for allowing the piston rod of bottom knockout oil cylinder 5; The both sides of base plate 72 are provided with fixing assist device connecting hole 76; The multiple L shape pressing plate 75 in described bed die 7 both sides is connected with frame 1 with bolt 77; Described L shape pressing plate 75 is provided with through hole 751.
Wherein, described bottom knockout oil cylinder 5 back seat is provided with connecting hole 51 and is connected with the bottom knockout cylinder support of box-girder under frame 14 inside, and bottom knockout cylinder piston rod is provided with connecting screw hole 52 and is connected with stripper plate 6.
Wherein, described stripper plate 6 is provided with counter sink 61 be connected with bottom knockout oil cylinder 5, under head of screw sinks to stripper plate flush by screw.
Wherein, described rack-and-pinion blank centering device 8 comprises the swing arm 81 that moves to left, the swing arm 82 that moves to right, reductor 88, handwheel 804 and seat board 85, the described swing arm 81 that moves to left is welded on the left Y shape axis of guide 811, described left Y shape axis of guide one end is welded on left tooth bar 812 1, described left tooth bar other end welding left support axle 813; Described left support axle 813 is movably connected on left supported plate B84, and described left supported plate B is welded on seat board 85; The above-mentioned left Y shape axis of guide 811 other end is movably connected on left supported plate A83, and described left supported plate A bolt is connected on seat board 85; The described swing arm 82 that moves to right is welded on the right Y shape axis of guide 821, and described right Y shape axis of guide one end is welded on right tooth bar 822 1, described right tooth bar other end welding right support axle 823; Described right support axle 823 is movably connected on right supported plate B87, and described right supported plate B is welded on seat board 85; The above-mentioned right Y shape axis of guide 821 other end is movably connected on right supported plate A86, and described right supported plate A bolt is connected on seat board 85; Described reductor 88 (reductor can be turbine worm reducer or elevating arc reductor) bolt is connected on seat board 85, and described speed reducer output shaft connects gear 89, and described gear 89 engages with left tooth bar 812 and right tooth bar 822 respectively; Described reductor power shaft is connected with connecting axle 802 by shaft coupling 801, and described connecting axle 802 is connected with right supported plate A86 by bearing block 803, and described connecting axle 802 end connects handwheel 804; On the lower box-girder that above-mentioned seat board 85 is fixedly connected on frame 1 and make to move to left swing arm 81 and the swing arm 82 that moves to right are positioned at bed die 7 both sides symmetric position; When shaking handwheel 804, the swing arm 81 that moves to left can synchronously move inward or outwards movement with the swing arm 82 that moves to right, and remains and bed die 7 center line symmetry; Like this when blank advances, as long as shake handwheel 804, time make to move to left swing arm 81 and the swing arm 82 that moves to right touch blank both sides respectively, just complete the work of blank centering.
Wherein, described assist device 9 comprises supporting seat 91, bearing 92, and described supporting seat 91 is provided with connecting hole 911, and described supporting seat 91 is bolted on bed die 7; Described bearing 92 is connected with bearing pin 93; Described bearing pin 93 is coupled together with supporting seat 91 by connecting hole 911 and nut 94; When blank advances time, be pressed on the bearing 92 on assist device 9, by the rolling of bearing 92, such travelling stock is just very easy and convenient.
Wherein, before described machine, platform 10 comprises platform support 101, and described platform support 101 arranges multiple boosting cylinder 102, and described boosting cylinder 102 inside is provided with bearing and can rotates around cylinder mandrel flexibly; When blank hangs after on boosting cylinder 102, just can promote easily.
Beneficial effect of the present invention is: novel structure, and hydraulic control is easy to operate; The U-shaped beam once suppressed by upper and lower mould can ensure that dimensionally stable, quality are good, forming speed is fast, can process the U-shaped beam of same width with same thickness of slab blank; Bending cylinder piston rod is connected with mold by piston Connection Block, and such anatomical connectivity bolt is few, dismounting quick, maintain and replace mold is convenient; Bed die is connected with frame by L shape pressing plate, even if fixing threaded hole position exists relatively large deviation in such syndeton frame, bed die can be fixed on tram, Joining Technology is ingenious; Upper and lower demoulding oil jar can ensure the demoulding of finished product fast and easy, solves finished product and is stuck in the problem of can not getting out on mould; Multiple bottom knockout oil cylinder is connected to stripper plate, and bottom U-shaped beam the U-shaped corbel be stuck in groove out by stripper plate holder, such whole piece U-shaped beam stress uniform shape does not change, and ensures that finished appearance quality is good; Likely first bottom knockout oil cylinder is started during stripping operation, the U-shaped beam of finished product is ejected together with mold from bed die, when such mold continues to rise, some U-shaped beam likely can clamp mold, as long as now start upper demoulding oil jar, its piston rod stretches out and U-shaped beam will be pushed from mold, solves the upper modulus problem of folder easily; Before assist device, machine, platform can keep travelling stock or mobile finished product to operate easy and convenient; Blank be pressed in the bearing in assist device rolls light very flexibly; Rack-and-pinion blank centering device controls blank and enters after above bed die, the center line that must control blank before compacting is identical with the center line of mould, the product size symmetry that this makes it possible to ensure to suppress out is qualified, yield rate is high, the present invention support the use rack-and-pinion blank centering device can ensure mechanism allow in the blank of various width can accurate centering, be particularly suitable for manufacturer's configuration that blank is very heavy, owing to there being the effect of reductor, shake handwheel is light, laborsaving; Finished product U-shaped beam can be inserted in bottom U-shaped beam by several little round steel and use as roller, releases frame, then hang away with crane above stripper plate; As long as this equipment one people can complete production operation under having crane to assist; Therefore the product that the present invention produces can reach that quality is good, yield rate is high, product stripping is easy, production efficiency is high, labour intensity is little, less with labour, the effect such as save production cost.
Accompanying drawing explanation
Fig. 1 existing U-lag steel beam structure schematic diagram;
Fig. 2 structural front view of the present invention;
Fig. 3 structure side view of the present invention (not containing platform before machine);
Fig. 4 mid frame structural upright of the present invention schematic diagram;
Bending oil cylinder syndeton schematic diagram in Fig. 5 the present invention;
Fig. 6 is the piston connecting base structure schematic diagram in Fig. 5;
Fig. 7 is the inserted sheet latch structure schematic diagram in Fig. 5;
Upper die structure schematic diagram in Fig. 8 the present invention;
Lower die structure and be fixedly connected with schematic diagram in Fig. 9 the present invention;
Bottom knockout oil cylinder syndeton schematic diagram in Figure 10 the present invention;
Stripper plate structural representation in Figure 11 the present invention;
Figure 12 middle rack formula of the present invention blank centering device structural front view;
Figure 13 is the top view of Figure 12;
Assist device structural representation in Figure 14 the present invention.
Detailed description of the invention
Now by reference to the accompanying drawings, the specific embodiment of the invention is described in detail in detail:
As shown in Figure 2 and Figure 3, a kind of U-shaped beam forming machine with rack-and-pinion blank centering device, comprise platform 10 before frame 1, bending oil cylinder 2, mold 4, bed die 7, upper demoulding oil jar 3, bottom knockout oil cylinder 5, hydraulic system 30, rack-and-pinion blank centering device 8, assist device 9 and machine, described multiple bending oil cylinder 2 cylinder body is connected on described frame 1 entablature; Described bending oil cylinder 2 piston rod is connected with described mold 4 by piston Connection Block 26, inserted sheet pin 25, bolt 27; Described upper demoulding oil jar 3 cylinder body by Flange joint on the entablature of frame 1, can pass through from mold 4 inside during described upper demoulding oil jar 3 piston rod telescopic movable, when after mold 4 molding, if U-shaped beam can clamp mold 4, now start upper demoulding oil jar 3, upper demoulding oil jar piston rod stretches out and U-shaped beam will be pushed, and solves the upper modulus problem of folder; Described bed die 7 is connected with frame 1 with bolt by L shape pressing plate 75, allows frame upper/lower die fixing threaded hole position relatively large deviation like this, and utilizes the elastic reaction of L shape pressing plate 75, make bed die 7 be connected more firm with frame 1; Described multiple bottom knockout oil cylinder 5 back seat is connected in the lower box-girder of frame 1, and described multiple bottom knockout oil cylinder 5 piston rod is connected with stripper plate 6 by bolt through bed die 7; U-shaped beam, after bed die 7 internal shaping, tightly can be stuck in bed die groove, need bottom knockout oil cylinder 5 to head on stripper plate 6 U-shaped back out; Described assist device 9 is connected on bed die 7, when blank advances time, is pressed on the bearing of assist device 9, and by the rolling of bearing, such travelling stock is just very easy and convenient; Described two cover rack-and-pinion blank centering devices 8 are connected on the centralising device installing port of frame 1, and make the swing arm that moves to left in rack-and-pinion blank centering device 8 be positioned at bed die 7 both sides symmetric position with the swing arm that moves to right, like this when blank advances, as long as the handwheel in shake rack-and-pinion blank centering device, make move to left swing arm and the synchronous past interior movement of the swing arm that moves to right, just blank can be moved to the center of bed die 7, complete the work of blank centering; Described hydraulic system 30 is arranged on frame 1 top or can is independently arranged near frame, is connected to bending oil cylinder 2, bottom knockout oil cylinder 5, upper demoulding oil jar 3, controls corresponding cylinder efficient by hydraulic oil pipe system by oil circuit; Before described machine, platform 10 comprises platform support 101, and described platform support 101 arranges multiple boosting cylinder 102, and described boosting cylinder 102 inside is provided with bearing and can rotates around cylinder mandrel flexibly; Before described machine, platform 10 is arranged on before frame 1 charging aperture, and blank is come by crane for hoisting, be placed on boosting cylinder 102 above after, just can promote easily, blank push carry out above bed die 7 compressing; When U-shaped beam is after bed die 7 demoulding, now operating personnel by small tool (as homalocephalus crowbar, or Flathead screwdriver), U-shaped beam from stripper plate 6 prize from, then bottom U-shaped beam, plug several pre-prepd little round steel (little round steel is also reused as instrument) use as roller, such operating personnel just easily can release the U-shaped beam be shaped before machine platform 10 above stripper plate 6, then hang away with crane, complete the manufacturing process of a U-shaped beam.
As shown in Figure 4, described frame 1 comprises multiple closed memorial archway 11, described closed memorial archway 11 is welded by steel plate or shaped steel, between described closed memorial archway 11, top is coupled together by the entablature 12 of Plate Welding, is welded with cylinder flange dish 13 for connecting bending oil cylinder and upper demoulding oil jar below described entablature 12; Between described closed memorial archway 11, bottom is coupled together by the lower box-girder 14 of Plate Welding, and described lower box-girder 14 is provided with bottom knockout oil har opening 15 and bed die fixing threaded hole 16 above; Described lower box-girder 14 inside is provided with bottom knockout oil cylinder and connects bearing for fixing bottom knockout oil cylinder; Described lower box-girder 14 is provided with centralising device installing port 18 for installing stationary rack formula blank centering device; Be provided with lower margin hole 17 bottom described closed memorial archway 11 to can be used for being connected with foot bolt fundamentally, ensure that frame is more stable.
As shown in Fig. 5, Fig. 6, Fig. 7, described bending oil cylinder 2 cylinder body is provided with flange connecting hole 21, and piston rod is provided with spill circle 22; Described bending oil cylinder 2 piston is coupled together with bolt 27 by piston Connection Block 26 and two panels inserted sheet pin 25; Described piston Connection Block 26 is provided with piston hole 261 and cotter way 263 and screw 262; Described inserted sheet pin 25 is provided with arc groove 251 and through hole 252, the spill circle 22 on the arc groove 251 seized piston bar on inserted sheet pin, and such bending oil cylinder 2 has connected with piston Connection Block 26.
As shown in Figure 8, described mold 4 becomes box girder structure by Plate Welding, arranges one or two ports 41 at mold 4 near middle, and the piston rod of upper demoulding oil jar can pass from these ports 41, plays demoulding effect; Piston Connection Block 26 is welded on above described mold 4.
As shown in Figure 9, described bed die 7 is welded by two pieces of risers 71 and base plate 72 and some gussets 73; Described base plate being arranged large round mouth 74, extending there through for allowing the piston rod of bottom knockout oil cylinder; The both sides of base plate 72 are provided with fixing assist device connecting hole 76; The multiple L shape pressing plate 75 in described bed die 7 both sides is connected with frame with bolt 77; Described L shape pressing plate 75 is provided with through hole 751.
As shown in Figure 10, described bottom knockout oil cylinder 5 back seat is provided with connecting hole 51 and is connected with the bottom knockout cylinder support of box-girder inside under frame, and bottom knockout cylinder piston rod is provided with connecting screw hole 52 for being connected with stripper plate.
As shown in figure 11, described stripper plate 6 is provided with counter sink 61 and is connected with bottom knockout oil cylinder by screw, under the head of screw for connecting sinks to stripper plate flush.
As shown in Figure 12 and Figure 13, described rack-and-pinion blank centering device 8 comprises the swing arm 81 that moves to left, the swing arm 82 that moves to right, reductor 88, handwheel 804 and seat board 85, the described swing arm 81 that moves to left is welded on the left Y shape axis of guide 811, described left Y shape axis of guide one end is welded on left tooth bar 812 1, described left tooth bar other end welding left support axle 813; Described left support axle 813 is movably connected on left supported plate B84, and described left supported plate B is welded on seat board 85; The above-mentioned left Y shape axis of guide 811 other end is movably connected on left supported plate A83, and described left supported plate A bolt is connected on seat board 85; The described swing arm 82 that moves to right is welded on the right Y shape axis of guide 821, and described right Y shape axis of guide one end is welded on right tooth bar 822 1, described right tooth bar other end welding right support axle 823; Described right support axle 823 is movably connected on right supported plate B87, and described right supported plate B is welded on seat board 85; The above-mentioned right Y shape axis of guide 821 other end is movably connected on right supported plate A86, and described right supported plate A bolt is connected on seat board 85; Described reductor 88 (reductor can be turbine worm reducer or elevating arc reductor) bolt is connected on seat board 85, and described speed reducer output shaft connects gear 89, and described gear 89 engages with left tooth bar 812 and right tooth bar 822 respectively; Described reductor power shaft is connected with connecting axle 802 by shaft coupling 801, and described connecting axle 802 is connected with right supported plate A86 by bearing block 803, and described connecting axle 802 end connects handwheel 804; On the lower box-girder that above-mentioned seat board 85 is fixedly connected on frame 1 and make to move to left swing arm 81 and the swing arm 82 that moves to right are positioned at bed die 7 both sides symmetric position; When shaking handwheel 804, the swing arm 81 that moves to left can synchronously move inward or outwards movement with the swing arm 82 that moves to right, and remains and bed die 7 center line symmetry; Like this when blank advances, as long as shake handwheel 804, time make to move to left swing arm 81 and the swing arm 82 that moves to right touch blank both sides respectively, just complete the work of blank centering.
As shown in figure 14, described assist device 9 comprises supporting seat 91, bearing 92, and described supporting seat 91 is provided with connecting hole 911, and described supporting seat 91 is bolted on bed die 7; Described bearing 92 is connected with bearing pin 93; Described bearing pin 93 is coupled together with supporting seat 91 by connecting hole 911 and nut 94; When blank advances time, be pressed on the bearing 92 on assist device 9, by the rolling of bearing 92, such travelling stock is just very easy and convenient.

Claims (10)

1. the U-shaped beam forming machine with rack-and-pinion blank centering device, it is characterized in that: comprise platform (10) before frame (1), bending oil cylinder (2), mold (4), bed die (7), upper demoulding oil jar (3), bottom knockout oil cylinder (5), hydraulic system (30), rack-and-pinion blank centering device (8), assist device (9) and machine, described at least two bending oil cylinder (2) cylinder bodies are connected on described frame (1) entablature (12); Described bending oil cylinder (2) piston rod is connected with described mold (4) by piston Connection Block (26); Described upper demoulding oil jar (3) is connected on the entablature (12) of frame (1), can wear when described upper demoulding oil jar (3) piston rod is movable from mold (4) inside; Described bed die (7) is fixed in frame (1) by L shape pressing plate (75) and bolt (77); Described multiple bottom knockout oil cylinder (5) is connected in the lower box-girder (14) of frame (1), and described multiple bottom knockout oil cylinder (5) piston rod is connected with stripper plate (6) by bolt through bed die (7); Described multiple assist device (9) is connected on bed die (7); Described two covers rack-and-pinion blank centering device (8) are connected on the centralising device installing port (18) in frame; Described hydraulic system (30) is arranged on frame (1) top or can is independently arranged near frame, connects bending oil cylinder (2), bottom knockout oil cylinder (5), upper demoulding oil jar (3) by oil circuit; Before described machine, platform (10) is arranged on before frame (1) charging aperture.
2. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, it is characterized in that: described frame (1) comprises multiple closed memorial archway (11), described closed memorial archway (11) is welded by steel plate or shaped steel, between described closed memorial archway (11), top is coupled together by the entablature (12) of Plate Welding, and described entablature (12) below is welded with cylinder flange dish (13); Between described closed memorial archway (11), bottom is coupled together by the lower box-girder (14) of Plate Welding, and described lower box-girder (14) is provided with bottom knockout oil har opening (15) and bed die fixing threaded hole (16) above; Described lower box-girder (14) inside is provided with bottom knockout oil cylinder and connects bearing, and described lower box-girder (14) is also provided with centralising device installing port (18); Described closed memorial archway (11) bottom is provided with lower margin hole (17).
3. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, it is characterized in that: described bending oil cylinder (2) cylinder body is provided with flange connecting hole (21), and piston rod is provided with spill circle (22); Described bending oil cylinder (2) piston rod is coupled together with bolt (27) by piston Connection Block (26) and two panels inserted sheet pin (25); Described piston Connection Block (26) is provided with piston hole (261) and cotter way (263) and screw (262); Described inserted sheet pin (25) is provided with arc groove (251) and through hole (252).
4. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, is characterized in that: described mold (4) becomes box girder structure by Plate Welding; Described mold (4) near middle arranges one or two ports (41); Described mold (4) top is welded with piston Connection Block (26).
5. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, is characterized in that: described bed die (7) is welded by two pieces of risers (71) and one piece of base plate (72) and some gussets (73); Described base plate (72) is arranged several large round mouths (74); Described base plate (72) both sides are provided with fixing assist device connecting hole (76); Described bed die (7) both sides are connected with frame with bolt (77) with multiple L shape pressing plate (75); Described L shape pressing plate (75) is provided with through hole (751).
6. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, it is characterized in that: described bottom knockout oil cylinder (5) back seat is provided with connecting hole (51), and piston rod is provided with connecting screw hole (52).
7. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, is characterized in that: described stripper plate (6) is provided with counter sink (61).
8. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, it is characterized in that: described rack-and-pinion blank centering device (8) comprises the swing arm that moves to left (81), the swing arm that moves to right (82), reductor (88), handwheel (804) and seat board (85), the described swing arm that moves to left (81) is welded on the left Y shape axis of guide (811), described left Y shape axis of guide one end is welded on left tooth bar (812), described left tooth bar other end welding left support axle (813); Described left support axle (813) is movably connected on left supported plate B (84), and described left supported plate B is welded on seat board (85); The above-mentioned left Y shape axis of guide (811) other end is movably connected on left supported plate A (83), and described left supported plate A bolt is connected on seat board (85); The described swing arm that moves to right (82) is welded on the right Y shape axis of guide (821), and described right Y shape axis of guide one end is welded on right tooth bar (822), described right tooth bar other end welding right support axle (823); Described right support axle (823) is movably connected on right supported plate B (87), and described right supported plate B is welded on seat board (85); The above-mentioned right Y shape axis of guide (821) other end is movably connected on right supported plate A (86), and described right supported plate A bolt is connected on seat board (85); Described reductor (88) bolt is connected on seat board (85), described speed reducer output shaft connects gear (89), and described gear (89) engages with left tooth bar (812) and right tooth bar (822) respectively; Described reductor power shaft is connected with connecting axle (802) by shaft coupling (801), described connecting axle (802) is connected with right supported plate A (86) by bearing block (803), and described connecting axle (802) end connects handwheel (804); On the lower box-girder that above-mentioned seat board (85) is fixedly connected on frame (1) and make to move to left swing arm (81) and the swing arm that moves to right (82) are positioned at bed die (7) both sides symmetric position.
9. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, it is characterized in that: described assist device (9) comprises supporting seat (91), bearing (92), described supporting seat (91) is provided with connecting hole (911), and described supporting seat (91) is bolted on bed die (7); Described bearing (92) is connected with bearing pin (93); Described bearing pin (93) is coupled together with supporting seat (91) by connecting hole (911) and nut (94).
10. a kind of U-shaped beam forming machine with rack-and-pinion blank centering device according to claim 1, it is characterized in that: before described machine, platform (10) comprises platform support (101), described platform support (101) arranges multiple boosting cylinder (102), and described boosting cylinder (102) inside is provided with bearing and can rotates around cylinder mandrel flexibly.
CN201520115779.1U 2015-02-26 2015-02-26 A kind of U-shaped beam forming machine with rack-and-pinion blank centering device Expired - Fee Related CN204503859U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105983601A (en) * 2015-02-26 2016-10-05 林晓强 U-shaped beam forming machine with rack type blank centring devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105983601A (en) * 2015-02-26 2016-10-05 林晓强 U-shaped beam forming machine with rack type blank centring devices

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