SU1548015A1 - Machine for grinding spring ends - Google Patents

Abstract

The invention relates to mechanical engineering and can be used to process the ends of cylindrical articles, in particular the ends of coiled springs with abrasive wheels. The aim of the invention is to improve the performance and quality of processing of the ends of the springs due to the intensification of processing modes. The machine contains a chain conveyor with clamping elements, grinding headstock, a mechanism for rotating and axial movement of the workpieces, made in the form of a driving rotating elastic disk 14 installed with the possibility of adjustment both in height and in rotation of its axis by 1-15 ° to the direction of movement transporter. The support assembly for sensing the radial load and ensuring rotation of the workpiece is made in the form of a non-driving rotating drum 16 placed on the conveyor frame in rolling bearings in the cutting zone. The chain conveyor supplies the spring 8 to the treatment area between the elastic disk 14 and the supporting drum 16, which provide intensive rotation of the part around its axis and feed it by turning the disk to the tool 2, as a result, the spring end is machined. 3 il.

Description

Yag.3

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The invention relates to mechanical engineering and can be used to process the ends of cylindrical articles, in particular, the ends of coiled springs with abrasive wheels.

The aim of the invention is to improve the performance and quality of processing of the ends of the springs due to the intensification of processing modes.

FIG. 1 shows a machine, top view; in fig. 2 - the same, front view; in fig. 3 shows section A-A in FIG. 2

The machine for grinding the ends of the springs contains grinding heads 1 with abrasive wheels 2 arranged in series on both sides of the chain conveyor 3. Rollers 5 are fixed to the endless branches of the chain conveyor 3 interconnected by rails-feeders 4, which rest on horizontal sections rail 6, mounted on the frame of the conveyor 3. The upper horizontal plane 7 of the frame together with the side surfaces of the rails-feeders 4 form the lower reference plane of the clamping elements for the processed parts alley (springs) 8. In this case, the rails-feeders 4, rigidly mounted on flexible legs of the chain conveyor 3, are driven by the interaction of the driving gear wheel 9 with the chain conveyor 3. The machine is loaded using the tray 10, and the unloading - using tray 11.

For axially feeding the springs 8 to the abrasive wheel 2 and their rotation, a device is inserted comprising a mechanism 12 for transmitting the rotation by means of a cantilever shaft 13 to an elastic disk 14. At that, an elastic disk 14 (in this case, for example, an automobile wheel) is mounted above the conveyor 3 to a height providing stable contact over the surface 15 with the spring 8 with the possibility of adjusting both the height and the turn to the required angle to the direction of movement of the conveyor 3. In the lower part, the treated spring 8 rests and the support drum 16 mounted in rolling bearings 17 and mounted on the frame of the conveyor 3 in the grinding zone. For a smooth entry and restriction in the screw movement of the spring 8 being machined into the cutting zone and the output from it on the bed of the conveyor 3, there are pairs of horizontally adjusted copiers 18 installed (Fig. 1).

The machine works as follows.

The springs 8 come from the tray 10 to the clamping elements of the conveyor 3, which moves them to the treatment area to the elastic disk 14. During the forward movement of the spring 8 on the conveyor 3, the elastic disk 14 enters into the friction

engagement with the treated spring 8 and due to the rotation at some angle 1 -15 ° of the elastic disk 14 and the difference in friction between the latter and the spring 8 on the one hand, as well as the frictional engagement of the processed spring 8 with the support surface of the drum 16 on the other hand, the spring rotates 8 with simultaneous axial feed to the abrasive disc 2. The axial feed is proportional to the rotation angle of the elastic disk 14. The elastic disc 14 deforms and comes into contact with a large number of turns of the spring 8, which provides No reliable friction engagement as

5 to rotate the spring, and to create an axial grinding force.

The pairs of copiers 18 provide smooth input and restriction in the screw movement of the spring 8 into the cutting zone and output from it as a result of axial feed with simultaneous rotation of the spring 8 around its axis during continuous movement of the conveyor 3.

Passing thus two or three grinding positions on one side of the conveyor,

5, the springs are then supplied by means of a drive elastic disc 14 to the other side of the conveyor 3 for processing the second end. The spring processed on both sides of the tray 11 is fed to the next operation.

0 Setting up the machine is reduced to setting the drive elastic disc above the conveyor to a height that ensures stable frictional contact with the spring and turns it to a certain angle to (1–15a) in order to ensure axial flow.

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Claims (1)

Invention Formula A machine for grinding the ends of the springs, containing a conveyor with base and support elements, grinding headstock mounted on the frame consistently on both sides of the conveyor, and an axial feed and rotation mechanism for the machined parts, characterized in that, in order to increase productivity and quality of processing , the mechanism of axial feed and rotation of parts is made in the form of a supporting drum located opposite each grinding headstock, the axis of which is perpendicular to the conveyor, made chain, and elastic th disk mounted drum oppositely adjustably position its axis in a vertical plane and rotation relative to the drum at an angle of 1-15 °, wherein the machine is provided with e pairs of copiers attached to the frame on both sides of the grinding headstock with the ability to adjust their position in the horizontal plane. 0 figure 1 W