JPH07171522A - Work washing method - Google Patents

Abstract

PURPOSE:To perfectly remove the foreign matter on the outer peripheral side surface of a work in the circumferential direction of the work in such a case that the jet washing area of the pressure water ejected from a jet nozzle is smaller than the area of the outer periphery of the work. CONSTITUTION:In a work washing method ejecting pressure water toward the work W arranged in a liquid while rotated from the jet nozzle 4 arranged in the liquid so as to be reciprocally moved, the rotational speed of the work W with respect to the reciprocal movement of the jet nozzle 4 or the reciprocal moving speed of the jet nozzle 4 with respect to the rotation of the work W is changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning a work for removing foreign matter such as cutting chips, cutting oil used during processing, and abrasives when processing an article formed by machining or the like. .

[0002]

2. Description of the Related Art As an example of a conventional work cleaning apparatus, there is JP-A-61-1184. According to this, a work is immersed in water, a nozzle is arranged at a constant distance from the surface of the work, and pressurized water is jetted from the nozzle toward the surface of the work, causing cavitation in the vicinity of the surface, and causing a cavitation on the surface. The foreign matter that has adhered is removed. Then, when cleaning the outer peripheral side surface of the work in the circumferential direction over the entire circumference, the work is rotated and the jet nozzle is reciprocally moved with respect to the work. Such a cleaning method is unnecessary when the spray cleaning area for the work of the pressurized water sprayed from the spray nozzle is larger than the outer peripheral side area of the work, but the spray cleaning area of the pressurized water is larger than the outer peripheral side area of the work. It is necessary when it becomes small. Here, once the rotation speed of the work and the reciprocating movement of the injection nozzle are set, they are operated at a constant speed.

[0003]

When the rotation speed of the work and the reciprocating movement speed of the jet nozzle are always constant, the outer circumferential side surface in the circumferential direction, which is washed per one rotation of the work, is always constant. The outer peripheral side surface of the work can be cleaned only in a predetermined fixed range, and uneven cleaning occurs and a good cleaning effect cannot be obtained.
Referring to FIG. 2, the jet nozzle makes one reciprocation for one rotation of the work. According to this, a mountain-shaped cleaning locus A remains on the outer peripheral side surface of the work. As long as the reciprocating motion of the injection nozzle with respect to is constant, it does not change even if the cleaning time is extended, which means that the outer peripheral side surface of the work is not cleaned outside the cleaning track.

The present invention has been made in view of the above problems, and in the case where the area for jetting and washing the pressurized water is smaller than the area on the outer peripheral side of the work, the foreign matter on the outer peripheral side surface in the circumferential direction of the work can be completely removed. To obtain a cleaning method.

[0005]

The object is to immerse a rotating work in a liquid, and to arrange an injection nozzle reciprocating with respect to the outer peripheral side surface of the work at a position separated from the work by a certain distance. In a method of cleaning a work in which pressurized water is jetted toward a work through a liquid, it is achieved by changing the rotation speed of the work with respect to the reciprocal movement of the jet nozzle of the work or the reciprocal movement speed of the jet nozzle with respect to the rotation of the work. .

[0006]

By changing the rotation speed of the jet nozzle of the workpiece with respect to the reciprocating movement, or by changing the reciprocating movement speed of the jet nozzle with respect to the workpiece, it is possible to change the cleaning trajectory on the outer circumferential side surface of the workpiece in the circumferential direction. The entire outer peripheral side surface of the workpiece in the circumferential direction can be cleaned, and a good cleaning effect can be obtained.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the work cleaning method according to the present invention will be described below with reference to FIG. Reference numeral 1 denotes a cleaning tank in which a liquid is stored, and a cylindrical work W is rotatably arranged by a work support 2 in the liquid in the cleaning tank. Reference numeral 3 is a rotary drive member connected to the work support 2, and is, for example, a DC motor or the like whose rotational speed is variably changed. Reference numeral 4 denotes an injection nozzle which is arranged in the liquid in the cleaning tank 1 and at a position separated from the work W by a certain distance, and pressurized water is supplied from the injection nozzle 4 through the liquid in the cleaning tank 1 to the work. It is injected toward the outer peripheral side surface of W. The injection nozzle 4 is attached to the operating rod 5, and the operating rod 5 is further connected to a reciprocating driving member 6 which can reciprocate the operating rod 5 and change the reciprocating speed. The reciprocating drive member 6 is, for example, a hydraulic cylinder.

Then, the cleaning of the work is performed as follows. Firstly, in a state where the reciprocating movement speed of the jet nozzle 4 by the reciprocating driving member 6 is kept constant, the rotation driving member 3 changes the rotation speed of the work W every one rotation or a plurality of rotations of the work W. is there.

Secondly, the rotation of the work W is kept constant by the rotation driving member 3, and the reciprocating speed of the injection nozzle 4 is changed by the reciprocating driving member 6 in this state. According to the above, since the cleaning locus A of the spray cleaning area of the pressurized water sprayed from the spray nozzle 4 onto the outer peripheral side surface of the work W crosses intricately on the outer peripheral side surface of the work W, cleaning unevenness on the outer peripheral side surface of the work W occurs. It is well washed without leaving.

In addition to the operation of the work W and the jet nozzle 4, the rotation of the work W may be stopped for a minute time while the jet nozzle 4 is reciprocally moved at a constant speed.
Furthermore, the reciprocating movement of the injection nozzle 4 may be stopped for a minute time while the work W is rotated at a constant rotation speed.

[0011]

As described above, according to the method of cleaning a work according to the present invention, the rotation speed of the work with respect to the reciprocating movement of the jet nozzle of the work or the reciprocating speed of the jet nozzle with respect to the rotation of the work is changed. Even if the cleaning area of the pressurized water sprayed from the spray nozzle is smaller than the outer peripheral side area of the work, foreign matter on the outer peripheral side surface in the circumferential direction of the work can be completely removed, and the work can be cleaned. It was something that could be done effectively.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a main part showing a cleaning device.

FIG. 2 shows a cleaning trajectory with respect to a plane development of an outer peripheral side surface of a work by a conventional cleaning method.

[Explanation of symbols]

 1 Cleaning Tank W Work 3 Rotation Driving Member 4 Injection Nozzle 6 Reciprocating Driving Member

Claims (1)

[Claims] 1. A rotating work is immersed in a liquid, and a jet nozzle that reciprocates with respect to the outer peripheral side surface of the work is arranged at a position apart from the work by a fixed distance. Pressurized water is injected from the jet nozzle through the liquid into the work. In the method for cleaning a workpiece, the method for cleaning a workpiece is characterized in that the rotation speed of the injection nozzle for reciprocating the workpiece or the reciprocating speed of the injection nozzle for rotating the workpiece is changed.