JP3853330B2 - Cleaning method - Google Patents

Description

  The present invention relates to an improvement in an apparatus for cleaning, for example, a hole formed in a workpiece.

  2. Description of the Related Art Conventionally, there has been known an apparatus for simultaneously cleaning chips and the like adhering to the periphery of a processing portion when a plurality of screw holes, bag holes, or the like are processed on a workpiece. An example of such an apparatus is an apparatus in which a plurality of cleaning nozzles are projected from the peripheral wall of a box for storing cleaning liquid in correspondence with the position of each processing portion, and a workpiece is positioned on the front surface of this apparatus. The cleaning nozzles are made to face the respective processing parts of the workpiece, and then cleaning liquid is simultaneously ejected from the cleaning nozzles for cleaning. Such an apparatus is provided with a number of cleaning nozzles protruding in advance in accordance with the positions of the processing parts of a plurality of types of workpieces so that the apparatus can be applied to, for example, a plurality of works having different positions of the processing parts.

  However, in the multi-model compatible apparatus as described above, when cleaning one type of workpiece, not only the cleaning liquid is discharged from the cleaning nozzle for other models, but the cleaning liquid is wasted, for example There has been a problem that the cleaning liquid that collided with a flat portion or the like that is an unprocessed part of the workpiece bounces back and scatters to the surroundings, interfering with a neighboring cleaning liquid that is cleaning the processed part, and weakening the cleaning effect. Further, since the cleaning liquid is discharged all at once from the cleaning nozzles for other models, there is also a problem that the discharge pressure is lowered and the cleaning effect is lowered.

  Even in the case of an apparatus that supports one type of workpiece instead of a multi-model compatible type, for example, when a bag-like deep hole and shallow hole are mixedly drilled as processing holes, When the same type of cleaning fluid is sprayed at the same discharge pressure, there are problems such as an increase in the chance of the cleaning fluid interfering and weakening the cleaning effect or inability to perform efficient cleaning.

In order to solve the above-mentioned problem, according to claim 1 of the present invention , in a cleaning method in which a cleaning nozzle is opposed to a workpiece processing portion, and a cleaning fluid is sprayed from the cleaning nozzle to clean the periphery of the processing portion. The cleaning method includes: a cleaning fluid supply unit that stores cleaning fluid; a first box that communicates with the cleaning fluid supply unit; a second box that is housed in the first box and communicates with the cleaning fluid supply unit; A first cleaning nozzle group projecting outward from the peripheral wall of the first box; and a second cleaning nozzle group projecting outward from the peripheral wall of the second box through the peripheral wall of the first box. A different cleaning flow is supplied from the first cleaning nozzle group and the second cleaning nozzle group by supplying different fluids from different cleaning fluid supply units to the first box and the second box. It was to the spraying.

According to a second aspect of the present invention, there is provided a cleaning method in which a cleaning nozzle is opposed to a workpiece processing portion, and a cleaning fluid is sprayed from the cleaning nozzle to clean the periphery of the processing portion. A cleaning fluid supply section for storing, a first box communicating with the cleaning fluid supply section, a second box housed in the first box and communicating with the cleaning fluid supply section, and an outer wall from the peripheral wall of the first box A first cleaning nozzle group protruding toward the direction, and a cleaning device including a second cleaning nozzle group protruding outward from the peripheral wall of the second box through the peripheral wall of the first box, The fluid pressure supplied from the cleaning fluid supply unit to the first box and the second box is made different, and the pressure of the cleaning fluid sprayed from the first cleaning nozzle group and the second cleaning nozzle group is made different. Was Unishi.

  In claim 1, for example, when machining holes having different depths are drilled in the workpiece, the cleaning liquid is sprayed when cleaning the deep holes, and the cleaning air is sprayed when cleaning the shallow holes. If an appropriate type of cleaning fluid is selected according to the mode and the like, cleaning can be performed efficiently. Also, cleaning air can be used in the drying process.

  Moreover, in Claim 2, the washing | cleaning according to a process aspect etc. can be performed efficiently by making the fluid pressure of the washing fluid of a 1st box and a 2nd box differ. That is, for example, in the case of the previous example, the fluid pressure is increased for deep holes and the fluid pressure is decreased for shallow holes. If this is combined with the change in the type of cleaning fluid of claim 1, the cleaning efficiency is further improved.

  Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 is a cross-sectional view of the cleaning apparatus, and FIG. 2 is a main part view of the first invention. As shown in FIG. 1, the cleaning device includes a first box 1 that is an outer box of a double box structure and a second box 2 that is an inner box. The second box 2 includes a bolt 3 in the first box 1, ... fixed by etc.

  A first cleaning nozzle group 4 made up of a plurality of first nozzles 4 a,... Is attached to the peripheral wall of the first box 1. That is, the peripheral wall of the first box 1 is provided with a plurality of through holes at positions corresponding to the processing holes Wh,... Of the workpiece W of a specific model, and the base end portions of the first nozzles 4a,. It is fixed in close contact.

  A second cleaning nozzle group 5 composed of a plurality of second nozzles 5 a,... Is also attached to the peripheral wall of the second box 2. That is, the peripheral wall of the second box 2 is provided with a plurality of through holes at positions corresponding to the machining holes of other types of workpieces, and the base ends of the second nozzles 5a,. It is fixed. Further, these second nozzles 5a,... Project outside through the peripheral wall of the first box 1. Sealing members 6,... For sealing are provided in the penetrating portions, and the tip portions of the second nozzles 5a,. The first nozzle 4a extends until it coincides with the line at the tip.

  Further, the first and second nozzles 4a and 5a have a diameter of, for example, about 2 to 8 mm in accordance with the diameter of the processing hole Wh of the workpiece W so that the cleaning liquid can be reliably sprayed into the processing hole Wh. In addition, for example, a copper pipe that is softer than the workpiece W is used so that the workpiece W is not damaged even if it contacts the workpiece W.

  A first connection pipe 7 is connected to the first box 1, and a second connection pipe 8 is connected to the second box 2. The second connecting pipe 8 extends through the peripheral wall of the first box 1 to the outside, and gathers in the first connecting pipe 7 via a switching valve 9 on the way. The collecting tube 10 combined into one is connected to, for example, a single cleaning fluid supply unit 11 that stores cleaning liquid. The switching valve 9 may be of a type in which three positions of supply stop, supply only to the first box 1 and supply only to the second box 2 can be selected, or in addition to the above three positions, A 4-position selection type having a function capable of supplying both the first and second boxes 1 and 2 may be used.

  The operation of the above cleaning apparatus will be described. When a plurality of processing holes Wh,... Are drilled in a predetermined portion of the workpiece W, the workpiece W is positioned at a predetermined position in front of the cleaning device, and the situation at this time is as shown in FIG. Each processing hole Wh,... Faces in front of 4a,. The switching valve 9 is operated so that the first connection pipe 7 on the first box 1 side communicates and the second connection pipe 8 on the second box 2 side is closed. For this reason, the cleaning liquid of the cleaning fluid supply unit 11 is supplied only into the first box 1 and the periphery of each processing hole Wh,... Is cleaned by the cleaning liquid ejected from the first nozzles 4a,. At this time, since the cleaning liquid is not ejected from the second nozzles 5a,..., There is no wasteful consumption of the cleaning liquid, and there is no possibility that the cleaning liquid bounced off in the unprocessed part interferes.

  Next, the second cleaning nozzle group 5 is used for cleaning when a plurality of machining holes are drilled in a workpiece of a different model. That is, when the workpiece W is positioned at a predetermined position in front of the cleaning device after the machining is finished, each machining hole faces in front of each second nozzle 5a,..., And the switching valve 9 is on the opposite side (the first box 1 side is closed). , The second box 2 side is communicated), and the cleaning liquid is sprayed from the second nozzles 5a,. Also in this case, since the cleaning liquid does not come out from the first nozzles 4a,..., Wasteful cleaning liquid is not wasted and there is no possibility that the cleaning liquid interferes.

  Further, in the case of a workpiece in which the positions of the machining holes are provided corresponding to all the nozzles 4a,... 5a,..., The switching valve 9 is communicated with both the first and second boxes 1 and 2. By switching in this way, it is possible to handle such workpieces. That is, the apparatus of the present embodiment can cope with three types of workpieces having different machining hole positions.

  By the way, in the above washing | cleaning apparatuses, although the washing | cleaning fluid supply part 11 is made into the single thing, in 1st invention, it is trying to provide one pair for each box 1 and 2 independently. That is, as shown in FIG. 2, the first connection pipe 7 of the first box 1 is directly connected to the cleaning fluid supply part 12 on one side, and the second connection pipe 8 of the second box 2 is directly connected to the cleaning fluid on the other side. For example, the cleaning fluid of the cleaning fluid supply unit 12 on one side is used as the cleaning liquid, and the cleaning fluid of the cleaning fluid supply unit 13 on the other side is used as the cleaning air. .

  If the type of the cleaning fluid can be changed in this way, for example, in the case of a processing mode that has a cleaning effect only by spraying cleaning air, there is an increased chance of the cleaning liquid interfering with the cleaning liquid. Can be prevented. In addition, the configuration example of such an apparatus is not limited to the type compatible with other models. For example, in the case where a deep hole and a shallow hole are partially machined for one work, the deep hole is formed at the position of the deep hole. Correspondingly, it is possible to face the nozzle that sprays the cleaning liquid, and to face the nozzle that sprays the cleaning air corresponding to the location of the shallow hole.

  Furthermore, in the second invention, the fluid pressure in the first box 1 and the fluid pressure in the second box 2 are made different. At this time, when the cleaning fluid supply units 12 and 13 and the connection pipes 7 and 8 are provided as a pair independently, it is easy to make the fluid pressures in the cleaning fluid supply units 12 and 13 different, As shown in FIG. 1, when the cleaning fluid supply unit 11 leads to the boxes 1 and 2, a pressure reducing valve is provided in the collecting pipe 10 or any one of the first and second connecting pipes 7 and 8. Should be provided. If the pressure reducing valve is operated in conjunction with the operation of the switching valve 9, the fluid pressure in the first box 1 and the fluid pressure in the second box 2 can be changed.

  And by making the fluid pressure of the 1st box 1 and the 2nd box 2 differ in this way, a cleaning fluid can be sprayed with a suitable pressure according to a processing aspect etc., and cleaning efficiency improves. For example, it can be efficiently cleaned by spraying a shallow hole with a small pressure and spraying a deep hole with a strong pressure. Further, if the cleaning fluids of the first and second boxes 1 and 2 are made different and the fluid pressures are made different at the same time, they can be washed more efficiently.

Cross section of cleaning device Main view of the first invention

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... 1st box, 2 ... 2nd box, 4 ... 1st washing nozzle group, 4a ... 1st nozzle, 5 ... 2nd washing nozzle group, 5a ... 2nd nozzle, 7 ... 1st connection pipe, 8 ... 1st 2 connection pipes, 9 ... switching valve, 10 ... collecting pipe, 11, 12, 13 ... cleaning fluid supply unit, W ... work, Wh ... machining hole.

Claims (2)

In a cleaning method in which a cleaning nozzle is opposed to the workpiece processing part, and a cleaning fluid is sprayed from the cleaning nozzle to clean the periphery of the processing part.
The cleaning method includes a cleaning fluid supply unit that stores cleaning fluid, a first box that communicates with the cleaning fluid supply unit, a second box that is housed in the first box and communicates with the cleaning fluid supply unit, A first cleaning nozzle group protruding outward from the peripheral wall of the first box, and a second cleaning nozzle group protruding outward from the peripheral wall of the second box through the peripheral wall of the first box A different cleaning fluid is supplied from different cleaning fluid supply units to the first box and the second box, and different cleaning fluids are sprayed from the first cleaning nozzle group and the second cleaning nozzle group. A cleaning method characterized by the above. In a cleaning method in which a cleaning nozzle is opposed to the workpiece processing part, and a cleaning fluid is sprayed from the cleaning nozzle to clean the periphery of the processing part.
The cleaning method includes a cleaning fluid supply unit that stores cleaning fluid, a first box that communicates with the cleaning fluid supply unit, a second box that is housed in the first box and communicates with the cleaning fluid supply unit, A first cleaning nozzle group protruding outward from the peripheral wall of the first box, and a second cleaning nozzle group protruding outward from the peripheral wall of the second box through the peripheral wall of the first box Of the cleaning fluid sprayed from the first cleaning nozzle group and the second cleaning nozzle group by differentiating the fluid pressure supplied from the cleaning fluid supply unit to the first box and the second box. A cleaning method characterized by different pressures.