JPS5929390B2 - Continuous fluid injection processing equipment for cylindrical workpieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a continuous fluid jet treatment apparatus for cylindrical workpieces.

For example, when blasting a small cylindrical workpiece by spraying abrasive particles with a pressurized fluid, there is a certain technique to process the outer circumference evenly and uniformly by passing it under the blasting device. However, if the blasting process is carried out in a straight line, the blasting process will be uneven, and small workpieces will not be able to maintain a stable position due to the action of the pressure fluid, resulting in uneven machining.

This invention can eliminate the drawback of oblique positioning, and also has a device with a simple configuration, and the guide rod of the device does not move in the direction of the center axis of the rod, and the workpieces that have been processed can be automatically removed from the processing line sequentially. The object of the present invention is to provide a continuous blasting apparatus for cylindrical workpieces that can be discharged in a continuous manner.

The first invention will be described in detail based on the embodiment shown in FIG. A skew roll device (2) is provided which is composed of rolls 4 and 5 and can transport a cylindrical workpiece (hereinafter simply referred to as workpiece) 1 placed between the rolls 4 and 5 in the direction of arrow X.

In this embodiment, the shaft 3 of one roll 5 is horizontal, the shaft 2 of the other roll 4 is inclined at an angle θ with respect to the shaft 3, and two skew roll devices (1, I') are installed. showed that.

The skew roll device 1. the pair of rolls 4 of I';
A guide rod 6 through which a cylindrical workpiece 1 can be inserted and which can guide the workpiece 1 is freely placed between the spaces 5 and 5 of the skew roll device (2).

Blast devices (2) and (2), which spray abrasive particles using pressurized fluid, are installed above (2), respectively.

Note that the skew roll device ■' located downstream has a slower rotation of the roll than the skew roll device I located upstream, so that the workpiece 1 is combed over the guiding roller of the downstream skew roll device ■'. .

Since this embodiment has a slanted configuration, a plurality of cylindrical workpieces 1 are inserted through one end of the guide rod 6 on the skew roll device shown in FIG. 1 between skew rolls 4 and 5, and skew roll 4
. , the workpiece 1 is rotated by the roll 5 at a linear speed of ■,
This linear velocity V is v sin θ 2 S, which is the velocity roll 4
Since it is applied to the workpiece 1 above, it moves on the roll 4 along the guide rod 6, during which time it is blasted with abrasive grains sprayed from the blasting device (2).

The intersection angle θ of a pair of skew rolls 4.5 is approximately 30 to 5.
If it is set to a small value of about 0, the value of SiH6 changes from 1 to 0 as θ increases from 90o to Oo, so the feed amount can be kept small, whereas the rotation of the skew roll can be kept relatively small. If the workpiece is placed in a large size, the workpiece will rotate well and be fed slowly, and the outer circumference of the workpiece 1 will be processed evenly.
Furthermore, since the workpiece is inserted through the guide rod 6, it is moved on the guide rod 6 in an orderly manner without being blown away by the pressure fluid or moving in an arbitrary direction, so that machining can be performed uniformly.

If the blasting device (■) is used for rough finishing and the blasting device (■') is used for finishing, the downstream skew roll device I
During the process, the workpieces 1 are blasted in a continuous manner, so that uniform finishing is achieved.

In addition, in the first invention, since the guide rod tends to move in the direction of the central axis of the guide rod as the workpiece moves, in order to prevent this movement, it is necessary to hold the workpiece manually after inserting it. Consideration is required.

In the explanation of the above embodiment, we took as an example a blasting device installed above the skew roll device, but for a cylindrical workpiece, simply blasting is not enough. In addition, skew roll devices are used not only for processing but also for processing by spraying liquid, and multiple blasting devices are installed above each skew roll device. The arrangement is necessary not only when the type of processing is different, but also when the type of processing is different. For example, in the case of 5. Blast the abrasive grains using pressurized water + wash with water or hot water I Although hot water washing may be considered, the continuous fluid injection processing apparatus of the present invention for cylindrical workpieces means an apparatus that can carry out the above-mentioned process while transporting the cylindrical workpiece using a skew roll device.

The second invention is that in the first invention, when the cylindrical workpiece 1 moves in the direction of the arrow X, the guide rod 6 also moves in the direction of the arrow X due to the frictional force between it and the workpiece 1. Because of this tendency, we have clarified that the guide rod 6 needs to be devised so that it does not move in the direction of the center axis of the guide rod. This was achieved by installing suitable equipment.

The structure will be explained based on FIG. 5. In the first invention, the insertion end 21 of the guide rod 6 for the cylindrical workpiece is curved upward, and the curved insertion end has a guide rod for the cylindrical workpiece 1. A cylinder 22 is provided, and it is necessary that at least a cover 23 of the workpiece 10 is located above the guide rod 6 which is curved upward.

Since this embodiment has a diagonally upward configuration, even if the guide rod 6 attempts to move in the direction of arrow X as the workpiece 1 moves, the workpiece insertion end 21 of the guide rod 6 will not move upward. Due to the curvature, the workpiece 1 already inserted therein hits the inner wall of the cover 23 and prevents further movement of the guide rod 6.

The insertion of the workpiece 1 into the guide rod 6 and its movement on the guide rod 6 can then be carried out without any hindrance.

Since the second invention has a configuration and function like an upward slope, the guide rod 6 is prevented from moving in the direction of the center axis of the guide 0'7 by a simple device during the injection process. In addition, since the guide rod 6 is curved upward, there is an effect that it is easy to insert the cylindrical workpiece.

The third invention is that in the first invention, the end of the guide rod 6 of the most downstream skew roll device ■' comes into contact with the end 8' of the piston rod 8 that is advanced from the liquid drive cylinder 7. and the end 8 of the piston rod 8
'The limit switch 9 is placed behind the workpiece 1 by the length t.
When the final workpiece 1' transferred on the guide rod 6 comes into contact with the limit switch 9, the electromagnetic switching valve 20 is actuated to supply pressure oil to the piston 18 from the piston rod 8 side. This action causes the piston 18 to move backward.

When the workpiece 1 moves from the guide rod 6 onto the piston rod 8 and touches the limit switch 9, the limit switch 9 operates the electromagnetic switching valve 20, and pressurized fluid is applied from the piston rod side. When the rod 8 is moved back one hour, a gap of about the length t of the workpiece 1 is created between the end of the guide rod 6 and the end 8' of the piston rod 8. Only one workpiece 1 falls onto the lower chute 10 and is automatically discharged one by one, and the guide rod 6 can be stabilized from freely moving at least in the longitudinal direction.

Note that the roll of the skew roll device used in the first to third inventions has a housing 13 rotatably provided with a low/I/4 shaft bearing 14, as shown in an example in FIG. , the power is transmitted from the motor 15 through a telescoping universal joint shaft 21, and the adjustment shaft 16.
By rotating the roller 17, moving the adjustment screw rods 18 and 19 in and out, and rotating the bearing body 14, the inclination angle θ of the roll 4 can be adjusted, thereby making it possible to adjust the transfer speed of the workpiece.

Since the third invention has a structural effect like an upward slope,
Similar to the first invention, a large number of cylindrical workpieces are well rotated by at least one pair of skew rolls, and are continuously guided by a guide rod to undergo fluid jet treatment, so that the workpieces can be The outer periphery of not only cylindrical workpieces but also workpieces with a relatively large diameter compared to the width, such as material for gears, can be processed well. The finished products are automatically discharged from the processing line one by one, and the movement of the guide rod in the direction of the center line is completely prevented, which is a remarkable effect.

[Brief explanation of drawings]

Fig. 1 is a front view of an embodiment of the continuous fluid injection processing apparatus for cylindrical workpieces according to the first and third inventions, Fig. 2 is a side view, and Fig. 3 is a feed action. An explanatory diagram, Fig. 4 is a front view of an embodiment of the skew roll device in which the inclination angle of the roll can be adjusted, and Fig. 5 is the second invention.
A front view of the main parts of a continuous fluid jet processing apparatus for a cylindrical workpiece is shown, in which 1 is a cylindrical workpiece, 2 and 3 are rotational shafts of rolls, 4.5 is a roll, and 6 is for guidance. 8 is the piston rod, H is the end of the piston rod, 9 is the limit switch, 21 is the insertion end of the guide rod 6, 23 is the guide cover, ■ is the skew roll device, ■' is the most downstream skew roll device, (2) indicates a fluid injection processing device, respectively.

Claims (1)

[Scope of Claims] 1 Consisting of a pair of rows #4.5 whose rotating shafts 2 and 3 are parallel to each other but intersect with each other at an angle θ and rotate in the same direction, and between the rolls 4 and 5 Cylindrical workpiece 1 placed in
A cylindrical workpiece 1 can be inserted between the pair of rolls 4 and 5 of at least one skew roll device (2) that can transport the cylindrical workpiece 1 in a fixed direction. A continuous fluid jet processing device for a cylindrical workpiece, characterized in that a guide rod 6 that can be guided is placed freely, and a fluid jet processing device (2) is provided above the skew roll device (1). 2 Consists of a pair of rolls 4.5 whose rotating axes 2.3 are parallel to each other but intersect at an angle θ and rotate in the same direction, and a cylindrical cover placed between the rolls 4 and 5. Workpiece 1
A cylindrical workpiece 1 can be inserted between the pair of rolls 4 and 5 of at least one skew roll device I, which can transport the cylindrical workpiece 1 in a fixed direction.
A guide rod 6 that can guide the cylindrical workpiece is placed freely, and a fluid jet processing device (2) is provided above the skew roll device (2). A continuous fluid jet processing apparatus for a cylindrical workpiece, characterized in that a guide cover 23 for guiding the inserted cylindrical workpiece is provided at least above the curved insertion end. 3 Consisting of a pair of rolls 4 and 5 whose rotating shafts 2 and 3 are parallel to each other but intersect with each other at an angle θ and rotate in the same direction, and a cylindrical cover placed between the rolls 4 and 5. Workpiece 1
A cylindrical workpiece 1 can be inserted between the pair of rolls 4 and 5 of at least one skew roll device l, which can transport the cylindrical workpiece 1 in a fixed direction. A guide rod 6 that can guide the skew roll device is mounted loosely, and a fluid jet processing device is provided above the skew roll device. A limit switch 9 is placed near the end 8' of the piston rod 8 for instantaneously retracting the piston rod 8, which is advanced from the leader I. 1. A continuous fluid injection device for a cylindrical workpiece 1, characterized in that it is configured to be actuated by an object 1.