Cylinder block direct-push telescoping mechanism on the steel-bar automatic hoop bender
Technical field
The utility model relates to a kind of steel-bar automatic hoop bender, particularly be telescoping mechanism on the steel-bar automatic hoop bender.
Background technology
Along with the economic construction fast development, stirrup automatic processing device---steel-bar automatic hoop bender has obtained using widely.The prior art steel-bar automatic hoop bender comprises: haulage gear, straightening mechanism, bending mechanism and cutting mechanism.Described bending mechanism is that reinforcing bar is finished diastrophic key mechanism, is provided with the retractor device of crooked spindle nose in bending mechanism, and the action of this retractor device is to occur when the stirrup that becomes recurvation, shear reinforcement and be bent shaping falls from just bending at reinforcing bar.
Fig. 3 is the bending mechanism front view of prior art steel-bar automatic hoop bender; Fig. 4 is the vertical view of Fig. 3.
As shown in Figure 3, Figure 4, the bending mechanism of prior art steel-bar automatic hoop bender comprises: common telescopic cylinder 8, old shift fork 9; The cylinder block of described common telescopic cylinder 8 is fixedly mounted on the frame 1, and the piston rod of common telescopic cylinder 8 one sides connects old shift fork 9 one ends, the fixedly connected bending axis 5 of old shift fork 9 other ends; One end of bending axis 5 is provided with crooked main shaft 10 and crooked mandrel 11, and crooked main shaft 10 and crooked mandrel 11 are used for moment reinforcement; In insertion that the other end of bending axis 5 slides with spline 7 and the endoporus that is combined in input axle sleeve 6 one ends, input axle sleeve 6 other ends connect the power drive part; During input axle sleeve 6 was supported in bent support 2 holes by bearing, bent support 2 was fixed on the frame 1.Moving back and forth of bending axis 5 is to utilize the piston rod of common telescopic cylinder 8 one sides to promote old shift fork 9 to finish.
There is following defective in the bending mechanism of prior art steel-bar automatic hoop bender: cylinder piston rod is in cantilever position, and piston rod will bear bigger moment of flexure during work, has defectives such as piston rod frangibility, has brought hidden danger for the use of machine.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, providing a kind of is fixed on bending axis on the cylinder block, move on the piston rod that cylinder block is stretched out at its two ends, drive the cylinder block direct-push telescoping mechanism on the steel-bar automatic hoop bender of the flexible and moment reinforcement of bending axis.
The technical scheme that solves the problems of the technologies described above is: the cylinder block direct-push telescoping mechanism on a kind of steel-bar automatic hoop bender, described cylinder block direct-push telescoping mechanism comprises: frame, cylinder, bending axis, shift fork, bending axis one end are the moment reinforcement parts, the bending axis other end connects the power drive part, the piston rod of described cylinder both sides is fixedly supported on the frame, and the cylinder block of cylinder moves back and forth on the piston rod of its both sides; One end of the fixedly connected shift fork of described cylinder block, the other end of shift fork is fixed on the bending axis.
The beneficial effects of the utility model are: the utility model has changed cylinder installment work mode, promptly adopt cylinder piston rod two end supports mounting means, cylinder block with cylinder promotes shift fork, stirring bending axis by shift fork again advances, retreats, make bending axis realize flexible and moment reinforcement function, change is born big moment of flexure by piston rod and is become by cylinder block and bear, and the cylinder physical efficiency is born bigger bending moment.The utility model overcomes the defective that prior art exists, have simple in structure, functional reliability is high, little, advantage of low manufacturing cost takes up room.
Description of drawings
Fig. 1 is the utility model front view;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the bending mechanism front view of prior art steel-bar automatic hoop bender;
Fig. 4 is the vertical view of Fig. 3.
" sequence number explanation in the accompanying drawing "
1: frame; 2: bent support; 3: cylinder; 3a: cylinder block; 3b: piston rod; 4: shift fork; 5: bending axis; 6: the input axle sleeve; 7: spline; 8: common telescopic cylinder; 9: old shift fork; 10: crooked main shaft; 11: crooked mandrel.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is the utility model front view; Fig. 2 is the vertical view of Fig. 1.
As shown in the figure, the utility model provides the telescoping mechanism of the cylinder block direct-push on a kind of steel-bar automatic hoop bender, described cylinder block direct-push telescoping mechanism comprises: frame 1, cylinder 3, bending axis 5, shift fork 4, bending axis 5 one ends are moment reinforcement parts, and the bending axis other end connects the power drive part.
The piston rod 3b of described cylinder 3 both sides is fixedly supported on the frame 1, and the cylinder block 3a of cylinder 3 moves back and forth on the piston rod 3b of its both sides; One end of the fixedly connected shift fork 4 of described cylinder block 3a, the other end of shift fork 4 is fixed on the bending axis 5.
The other end of described shift fork 4 inserts and is fixed in the draw-in groove of bending axis 5.
Described bending axis 5 other ends slide and insert and be combined in the input axle sleeve 6 one end endoporus, and input axle sleeve 6 other ends connect the power drive part; Described input axle sleeve 6 is supported in bent support 2 endoporus, between input axle sleeve 6 and bent support 2 endoporus bearing is arranged; Described bent support 2 is fixed on the frame 1.
Between described bending axis 5 and the input axle sleeve 6 is splined.
More particularly, described bending axis 5 one end moment reinforcements partly comprise crooked main shaft 10 and crooked mandrel 11, and the other end of bending axis 5 is combined in the endoporus of input axle sleeve 6 with spline 7; This spline structure can make rotatablely moving of input axle sleeve 6 drive bending axis 5 and rotate moment reinforcement, and bending axis 5 can axially move under the stirring of shift fork 4 again, realizes the Telescopic of bending axis 5.
Expanding-contracting action process to bending axis 5 is explained as follows below:
When bending axis 5 needs to stretch, as long as the real-time magnetic valve of giving telescopic cylinder 3 sends instruction, the piston rod of telescopic cylinder 3 is that two ends are fixed, cylinder block 3a will be relative move forward and backward, the shift fork 4 that is installed on the cylinder block 3a is just followed forward or is retreated, shift fork 4 lower ends are installed in the draw-in groove of bending axis 5, and bending axis 5 will be realized the Telescopic of bending axis with shift fork forward or retreat.Adjust flexible stroke size by the stroke of adjusting cylinder 3.