Background technology
Often have spring in the mechanical device; when mechanical device is assembled; usually all be to use artificial mode to assemble; when manually assembling extension spring; a first end with extension spring to be assembled is mounted on first hitching position in the mechanical device; with other instruments the other end of extension spring is mounted on second hitching position again; it is not only time-consuming but also require great effort that the here mode is assembled extension spring; and in the process of assembling; owing to can not fix between stretching tool that adopts and the spring; often cause the spring artificial situation that from stretching tool, jumps, cause casualties easily.Therefore, need a kind of safe, spring assembly machine efficiently in the engineering practice, especially a kind of can prevent spring stretch and the process of assembling in, the spring hanging mechanism of the accident that jumps out.
Summary of the invention
The purpose of this invention is to provide a kind of spring that can prevent in the process that stretches and assemble, the spring hanging mechanism of the accident that jumps out.
Spring hanging mechanism of the present invention comprises cylinder and is connected contiguous block on the output of described cylinder that described contiguous block has second hook that is used to articulate spring one end; The other end of described spring hangs over first target location on the workpiece, it is characterized in that: the butt hook that comprise also that one one end and described spring one end articulate, second target location on the other end and the described workpiece articulates.
Described mechanism makes and the phenomenon that described spring can not jump out improved the security of operating to a great extent in the process of installing owing to adopted butt hook, avoided the generation of personnel casualty accidents.
The specific embodiment
Be elaborated below in conjunction with 1 pair of technical scheme of the present invention of accompanying drawing.
As shown in Figure 1, described spring hanging mechanism have a cylinder 4 that is used for extension spring 6, be fixedly connected with contiguous block 5 on the output of described cylinder 4, described contiguous block 5 can be subjected to described cylinder 4 to drive the direction that stretches to described spring 6 to move; One side of described contiguous block 5 has one second hook 1; One end of described spring 6 hangs on described second hook 1, and the other end hangs over first target location on the workpiece.
The lower end of described contiguous block 5 has two by two formed grooves of magnet, forms enough strong magnetic field at described two magnets in described groove.Preferably, described magnetic is permanent magnet or electromagnet.
A butt hook 2 places described groove, and an end that is positioned at the described second hook place of an end of described butt hook 2 and described spring 6 articulates, and the other end is freely placed; Described butt hook 2 can be leaned against by described two magnets and be adsorbed in the described groove, and by its location.The other end of freely placing of described butt hook 2 be formed for described work on second target location articulate first the hook 2.
The operation principle of described spring hanging mechanism is as follows:
When initial state, the two ends of described spring 6 are hung on described second hook 1 and first target location, and described spring in the raw at this moment.
When described spring 6 is articulated on described second hook 1 and described first target location and in the raw the time, described butt hook 2 is tangled on the hook of described spring 6 one ends, and make described butt hook 2 place described groove, located by described magnet absorption.
Keeping under the motionless state of described workpiece, activating described cylinder 4 and drive described contiguous block 5 and move, thereby the other end of described butt hook 2 is being articulated to second target location of described workpiece to oblique below; Described butt hook 2 makes described spring 6 be in than stable status, and spring can not take place, and accidents happened, and at this moment, described spring 6 is in preliminary extended state.