Automated complex for the manufacture of leaf springs

 

The invention relates to the field of automation of hot die forging parts and can be used in the manufacture of automotive leaf springs. Automated complex contains a heating installation, press to trim the ends of the billets and iron and calibration Ushkov springs, grab the transmitting device and the mechanisms of loading and unloading. The complex is equipped with position alignment of the material made in the form of housing with end switch, moving in vertical guides. In case you installed the spring-loaded device that communicates with the destination switch. On both sides of the car safety across the longitudinal axis of the complex are stationary supporting elements and installed movable in the vertical plane of the guide members to move the workpiece. To provide such movement of the workpiece provides additional plunger. There is also a mechanism for raising and lowering the housing and movable rails. The result is the ability to handle leaf springs with variable longitudinal thickness. 8 Il.

The invention relates to the field of automation of hot shtam is Known automated complex for the manufacture of leaf springs [1], contains press to trim the ends of the blanks, grab the transmitting device, the mechanisms of loading and unloading.

The complex allows to make spring leaves of workpieces with a uniform thickness over its entire length. Such workpiece you want to cut only "in size. In case, if the thickness of the workpiece in the longitudinal direction is not constant, then the pruning must be performed with respect to the geometry of the profile at a certain distance from the axis of symmetry, if the item should be symmetrical. This is the hole cut in the center piece.

The invention aims to enable the processing of sheet blanks springs having a variable longitudinal thickness.

To achieve this, the technical result of the automated complex for the manufacture of spring leaves, containing press to trim the ends of the blanks, grab the transmitting device, the mechanisms of loading and unloading, equipped with a position alignment of the material made in the form of housing, slidably mounted in vertical guides and is provided with a limit switch, spring-loaded safety lock mounted in the housing with the possibility verticales the longitudinal axis of the complex stationary supporting element and movable in a vertical plane guide elements for moving the workpiece, additional pusher to provide such movement of the workpiece along the guide elements, and mechanism for raising and lowering the housing and movable rails, the complex is further provided with a heating installation, and press done with a Curling iron and calibration Ushkov springs.

Distinctive features of the proposed automated system for manufacturing leaf springs from the above known, the closest to it is the position alignment of the material and perform it in the form of a spring-loaded safety lock that is installed with the possibility of vertical movement in the housing, slidably mounted in vertical guides and is provided with a limit switch attached with the opportunity to interact with the device. On both sides of the car safety across the longitudinal axis of the complex stationary supporting elements and movable in a vertical plane guiding elements for movement of the workpiece by means of additionally introduced pusher. The housing of the safety device and movable guide members provided with a mechanism for lifting and lowering. The complex is further provided with heating in the bath complex for the manufacture of leaf springs is illustrated in Fig.1-8.

In Fig.1 shows an automated complex, a view in plan; Fig.2 is a view of the complex from the side; Fig.3 - view of G in Fig.2; Fig.4 - section a-a in Fig.1; Fig.5 - section b-B in Fig.1; Fig.6 - section b-b of Fig.5; Fig.7 is an image of the original piece; Fig.8 is an image of the finished piece.

Automated complex for the manufacture of leaf springs contains the heating unit 1, the drive roller 2 for feeding blanks to the position of the center 3, the gripper device 4 for loading blanks into the press 5 and move them in the stamp press between the positions of the cutting ends, perming and calibration Ushkov springs, chain conveyor 6 for removing finished parts from the working area of the press.

Position 3 alignment of the material of the hole includes a tilter 7, the spring-loaded safety device 8, both sides of which transversely to the longitudinal axis of the complex are stationary supporting elements. made in the form of rollers 9, and two guide element made in the form of forks 10. The rollers 9 and the plug 10 is designed for movement of the workpiece 11 by means of the pusher 12, made in the form of two shoulders of the lever, one arm of which is connected with a flexible coupling with the load 13, and the other with the rod of the pneumatic cylinder onlinego spring 17 by means of two shoulders of the lever 18. associated with the safety device 8 via the connection "finger groove".

On the housing 16 mounted in the guide rollers 19, is secured with the opportunity to interact with the device 8, the limit switch 20.

The plug 10 is fixed to the housings 21, mounted similarly to the case 16 with the possibility of vertical movement in the guide rollers 22, and the housing 21 of the forks 10 and the housing 16 of the device 8 have the same drive their rise and fall in the form of a pneumatic cylinder 23. Through the rod 24 of the cylinder rod 23 is connected with two shoulders arms 25-27, each of which is provided with a roller 28 that interacts with your copier 29, fixed on the axis 30 and kinematically associated with the respective housing 16 or 21.

The levers 25 and 26 are designed for lifting / lowering of the forks 10, are simultaneously pullers blanks with the position of the centering.

Press 5 equipped with hard catching 31 arranged on the same axis with spring-loaded safety device 8 and controlling the position of the workpiece in the transverse direction in each stream of the stamp.

Automated complex for the manufacture of leaf springs operates as follows.

Pre-rolled plate stock variable cross-section (Fig. 7) consists of two formed what ought to be the same length, to ensure the symmetry of the details.

Heated in the heating unit 1, the workpiece is fed to the drive roller 2 and then tilting unit 7 is transmitted to position 3 for centering relative to the pre-punched center hole. The tilting unit 7 lowers the workpiece 11 on the rollers 9 and guides the plug 10. While the Central hole in the workpiece is shifted with respect to the safety device 8 in the direction of the pusher 12, because such billets set by setting focus on the conveyor 2. Thus, the workpiece utaplivaet the spring-loaded safety device 8, which acts on the limit switch 20, giving the command to actuate the pusher 12. Switch slide valve cylinder 14, causing its piston chamber communicates with the atmosphere, and the push rod 12 under the action of the load 13 is rotated and moves the workpiece.

As soon as the safety device 8 enters the Central hole of the workpiece, the contact end of the switch 20 will open and thereby provides a signal to the drain of the follower. The plunger 12 is returned to its original position, and the levers 25 to 27, which is driven by the pneumatic cylinder 23, in turn, affecting the rollers 28 on copiers 29, which pereletom excludes the impact of the device on the switch in order to avoid signal to actuate the pusher 12.

As a result, the workpiece is released from the fixed position, and the levers 25 and 26, while continuing to rotate their upper ends, push the workpiece from the position of the center and move it in the desired for further processing position to the loading position in the gripper device 4.

Then the billet enters the press 5, where it is shifted gripper device 4 from one stream of a stamp in the other, and at each position it hits its center hole on a stiff safety device 31, thereby preserving its centered position. The press is the trimming of the ends of the workpiece symmetrically relative to the center hole, then pre-Podlipki, the final wave Ushkov and calibration. After that, the leaf spring is transmitted grab bars on a chain conveyor 6 and is removed from the working area of the press.

Information source 1. Means of mechanization and automation of cold forming, RTM-A23.7.24-71, Moscow, 1971, S. 496-497.

Claims

Automated complex for the manufacture of spring leaves, containing press to trim the ends of the blanks, grab the transmitting device and the loading mechanisms and you the but mounted in vertical guides and is provided with a limit switch, spring-loaded safety lock mounted in the housing with the possibility of vertical movement and interaction with end switch, located on both sides of the car safety across the longitudinal axis of the complex stationary supporting element and movable in a vertical plane guide elements for moving the workpiece, additional pusher to provide such movement of the workpiece along the guide elements, and mechanism for raising and lowering the housing and movable rails, the complex is further provided with a heating installation, and press done with a Curling iron and calibration Ushkov springs.

 

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