CN2734358Y

CN2734358Y - Improved draw blender structure

Info

Publication number: CN2734358Y
Application number: CN 200420046587
Authority: CN
Inventors: 邱风国
Original assignee: SHENZHEN EASTERN DAWN INDUSTRY Co Ltd
Current assignee: SHENZHEN EASTERN DAWN INDUSTRY Co Ltd
Priority date: 2004-06-04
Filing date: 2004-06-04
Publication date: 2005-10-19
Anticipated expiration: 2014-06-04

Abstract

The utility model relates to the technical field of mechanical equipment, in particular to an improved draw blender structure, comprising a draw blender rack, and rotating arms. A large disk is combined on the upper side of the draw blender rack, and two rotating arms are symmetrically pivoted on the two sides of the front end of the draw blender rack. Movable cylinder seats attached with clamping heads are installed on the upper rail surfaces of the rotating arms. One end of a draw bending oil cylinder driving the rotating arms is hinged on the nearing front segment of the draw blender rack, and the other end of the draw bending oil cylinder driving the rotating arms is hinged on the flanges of the inner sides of the rotating arms by the outer ends of piston rods. The flanges are positioned on the nearing outer segments of the rotating arms. The draw blender rack, the rotating arms, and the draw bending oil cylinder are in movable triangular relation. The draw bending oil cylinder is not needed to pass through the inner middle parts of the rotating arms, thereof, the rotating arms are not needed to be hollowed on the inner middle parts, the integrity of the rotating arms is ensured, and the intensity and the rigidity of the rotating arms are reinforced. The outward extending end of the draw bending oil cylinder is hinged on the nearing outer segments of the rotating arms. The arm of force can be effectively lengthened in the process of work, and the quality of a draw bending work piece can be effectively enhanced. The improved draw blender structure has acting force decreasing, high efficiency, long service life, and simple and convenient operation.

Description

The stretch benders structural improvement

Technical field:

The utility model relates to mechanical equipment technical field, refers in particular to a kind of stretch benders structural improvement.

Background technology:

In construction, because the needs of engineering generally will be processed as workpiece such as steel, section bar the arc angle shape of transition, with the building frame of realizing linking up.Stretch benders are used for one of equipment of stretch bending steel, section bar just, shown in accompanying drawing 1,2,3, existing stretch benders mainly include frame 60, pivoted arm 61, frame 60 upsides have a deep bid 62, and frame 60 front end bilateral symmetry articulate two pivoted arms 61, rail level is equipped with the cylinder seat 64 alive of subsidiary chuck 63 on the pivoted arm 61, different stretch bending moulds can be installed, to finish the requirement of different stretch bending sizes on the deep bid 62; Chuck 63 is used for clamping work pieces, realizes the flexural deformation of workpiece to cooperate pivoted arm 61 to rotate.

During work, workpiece laterally is placed on the deep bid 62, and is abutted against the stretch bending mould, and by chuck 63 clampings on two pivoted arms 61, chuck 63 can be followed cylinder seat 64 alive and be moved respectively at its two ends, to satisfy the requirement of different workpieces length.About two pivoted arms 61 rotate and flexural deformation is done at the two ends of pulling workpiece, mainly be to utilize stretch bending oil cylinder 65 to drive pivoted arm 61 to rotate in the current stretch benders, the inner of stretch bending oil cylinder 65 is articulated in frame 60, it is hinged with the outboard flanges 611 of pivoted arm 61 that the other end passes the logical empty back, middle part of pivoted arm 61, utilizes the expanding-contracting action of stretch bending oil cylinder 65 to drive pivoted arm 61 around its pivoting point rotation with frame 60.Because have between stretch bending oil cylinder 65 and the pivoted arm 61 and intersect the structure that wears, pivoted arm 61 middle parts need be processed with logical hollow structure, cause pivoted arm 61 two-layer about being divided into, weakened the globality of pivoted arm 61, the intensity of pivoted arm 61 weakens, and has strengthened its diastrophic probability, and the life-span is short.

In addition, it is to realize by artificial push-and-pull that the cylinder seat 64 alive of existing stretch benders moves on pivoted arm 61, complex operation, and the amount of labour is big, is unfavorable for boosting productivity.

Summary of the invention:

The purpose of this utility model is to overcome the defective of prior art, provides a kind of simple in structure, the stretch benders structural improvement that pivoted arm intensity is higher.

Another purpose of the present utility model is to provide a kind of easy and simple to handle, action accurately, stretch benders structural improvement smoothly.

For achieving the above object, the utility model includes frame, pivoted arm, and the frame upside is combined with a deep bid, and frame front end bilateral symmetry articulates two pivoted arms, and rail level is equipped with the cylinder seat alive of subsidiary chuck on the pivoted arm; One end of the stretch bending oil cylinder of described driving pivoted arm is articulated in frame, and the other end is articulated on the medial flange of pivoted arm by end outside the piston rod, and this flange is positioned on outer section of pivoted arm, concerns for bolt cam between frame, pivoted arm and the stretch bending oil cylinder.

The cylinder seat alive of described subsidiary chuck connects a screw body, and this screw body is installed on the pivoted arm.

The stretch bending oil cylinder of the utility model need not pass middle part in the pivoted arm, and pivoted arm also just need not be guaranteed the integraty of pivoted arm in interior middle part hollow out thus, has strengthened the intensity and the rigidity of pivoted arm; The overhanging end of stretch bending oil cylinder is articulated on outer section of the pivoted arm, and the course of work arm of force that can extend effectively reduces active force, the efficient height, and long service life, easy and simple to handle, can improve the quality of stretch bending workpiece effectively.

Description of drawings:

Accompanying drawing 1 is the prior art constructions schematic diagram;

Accompanying drawing 2 is the deployed configuration schematic diagram of prior art;

Accompanying drawing 3 is the retracting structure schematic diagram of prior art;

Accompanying drawing 4 is the utility model structural representation;

Accompanying drawing 5 is the vertical view that the pivoted arm of the utility model launches;

The vertical view that accompanying drawing 6 folds for the pivoted arm of the utility model.

The specific embodiment:

See shown in the accompanying drawing 4～6 that the utility model includes frame 10, pivoted arm 20, frame 10 upsides are combined with a deep bid 11, and frame 10 front end bilateral symmetry articulate two pivoted arms 20, and rail level is equipped with the cylinder seat 21 alive of subsidiary chuck 22 on the pivoted arm 20.An end that drives the stretch bending oil cylinder 30 of pivoted arm 20 is articulated in 10 forward sections of frames (its tie point is relative nearer with the tie point of pivoted arm 20), the other end of stretch bending oil cylinder 30 is articulated on the medial flange 23 of pivoted arm 20 by end outside the piston rod 31, flange 23 is positioned on outer section of pivoted arm 20, is the bolt cam relation between frame 10, pivoted arm 20 and the stretch bending oil cylinder 30.

The cylinder seat alive 21 of subsidiary chuck 22 connects a screw body 24, and screw body 24 is installed on the pivoted arm 20.Screw body 24 can drive cylinder seat 21 alive rail level on pivoted arm 20 and move around, so that regulate the position of chuck 22, satisfies the clamping requirement of the workpiece of different length, and the stretching cylinder 221 that chuck 22 connects is used to finish workpiece to be elongated.The cylinder seat 21 of living is driven by screw body 24, and is mobile smooth and easy, laborsaving, and good positioning effect, easy and simple to handle.

One end of stretch bending oil cylinder 30 is articulated in 10 forward sections of frames (its tie point is relative nearer with the tie point of pivoted arm 20), and the other end is articulated on the medial flange 23 of pivoted arm 20 by end outside the piston rod 31, and flange 23 is positioned on outer section of pivoted arm 20.When pivoted arm 20 launches, stretch bending oil cylinder 30 approaches parallel with pivoted arm 20, stretch bending oil cylinder 30 need not pass middle part in the pivoted arm 20, pivoted arm 20 also just need not be guaranteed the integraty of pivoted arm 20 in interior middle part hollow out thus, has strengthened the intensity and the rigidity of pivoted arm 20, bending resistance is strengthened, be difficult for bend fracture, the life-span is long, and improves the quality of stretch bending workpiece effectively.Piston rod 31 recovery of stretch bending oil cylinder 30 then spur pivoted arm 20 and turn round around itself and frame 10 pivoting points, and the two ends of chuck 22 holding workpieces on the pivoted arm 20 stretch and be crooked, and crooked radian size is determined by the stretch bending mould.The outer end of stretch bending oil cylinder 30 is articulated on the medial flange 23 of pivoted arm 20 by the end of piston rod 31, flange 23 is positioned on outer section of pivoted arm 20, so that stretch bending process, the arm of force that acts on the pivoted arm 20 is to change from small to big, thereby its active force is a process from large to small, be more conducive to stretch bending work like this, stretch bending is smooth and easy, the efficient height.

Claims

1, the stretch benders structural improvement, include frame (10), pivoted arm (20), frame (10) upside is combined with a deep bid (11), and frame (10) front end bilateral symmetry articulates two pivoted arms (20), pivoted arm (20) is gone up the cylinder seat alive (21) that rail level is equipped with subsidiary chuck (22), it is characterized in that: an end of the stretch bending oil cylinder (30) of described driving pivoted arm (20) is articulated in frame (10), the other end is articulated on the medial flange (23) of pivoted arm (20) by end outside the piston rod (31), this flange (23) is positioned on outer section of pivoted arm (20), described frame (10), be the bolt cam relation between pivoted arm (20) and the stretch bending oil cylinder (30).

2, stretch benders structural improvement according to claim 1 is characterized in that: the cylinder seat alive (21) of described subsidiary chuck (22) connects a screw body (24), and this screw body (24) is installed on the pivoted arm (20).