JPH07290004A - Shut-up ejection nozzle - Google Patents

Abstract

PURPOSE:To effectively perform washing by the change of a control system irrespective of kinds and shapes of products by providing an ejection nozzle on the tip of the theta axis of a device provided with the X-Z axis, the A axis on the horizontal axis and the theta axis on the vertical Z axis and for applying NC control to five driving shafts and ejecting fluid or powder from the nozzle to a workpiece. CONSTITUTION:A washing chamber 2 is provided on a frame 6 surrounding a tank 5 for storing washing liquid 4 heated to be insulated by a heater 3. By the rotation of a ball screw 10 by a servomotor 9 on a base, the horizontal movement of a horizontal X axis 12 is performed through a rail 11. On this X axis, a vertical Z axis 16 moved vertically by the rotation of a ball screw 14 by a servomotor 13 through a rail member 15 is supported. On this Z axis 16, a horizontal Y axis 20 moved horizontally by the rotation of a ball screw 18 by a servomotor 17 through a rail member 19 is supported. On the Y axis 20, an NC index table 21 is freely rotatably mounted. On this table, an inward ejection nozzles 23... are supported through a horizontal axis 25 and a supporting member 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cleaning a work or the like which has been subjected to a coolant or the like in a cutting process or the like, a device for coating the work or a device for shooting beads or the like on the work.

[0002]

2. Description of the Related Art Generally, a method of injecting a fluid or a powder into a product or a part which has been conventionally used is to install a large number of nozzles on both upper and lower horizontal surfaces in a substantially closed chamber to eject the fluid and / or particles from the nozzle. It is a method of simultaneously ejecting toward the work or a method of attaching a plurality of nozzles in directions and positions matching the shape of individual products and ejecting.

However, these methods have the following drawbacks: the former method does not uniformly spray the surface of the product or component only in the nozzle spraying direction, and the latter method does not achieve uniform nozzles for each product. Since it is necessary to replace the head, the equipment cost and the labor required for replacement are great, and it is common to install a dedicated machine for each product. Recently, a method of scanning the entire surface of a product or part by holding a nozzle at the tip of a robot hand is almost uniform, but it takes time to cover the entire surface, and it is possible to prevent scattering of droplets. In order to do so, a large room for enclosing each robot is required, and it is impossible to eliminate contamination of the equipment and heavy work of workers. .

[0004]

In view of the above points, it is possible to prevent droplets of a fluid or powder spray from scattering to the device or the surroundings, and to newly install equipment for changing the shape of each product or product. The challenge is to realize a general-purpose machine that is suitable for the improvement of investment efficiency and the environment without dealing with it.

[0005]

[Means for Solving the Problems] To this end, X, Y,
NC control of three-dimensional position by driving a Z-axis by a servo motor and / or NC control of an A-axis for rotating a gripping member for gripping a work in a direction parallel to the X-axis and / or for a work on a vertical drive shaft. An apparatus equipped with NC control of a θ-axis that rotates a support member that supports one or more nozzles that eject fluid or powder in a direction orthogonal to the A-axis. The support member is enclosed through the seal portion and jetted in a substantially closed box having an opening / closing door. In addition, the above-mentioned particle shield in the θ-axis direction is θ
A flexible shielding surface material having an axis penetrating perpendicularly is connected endlessly with a string through means for pulling and pushing at both ends,
It moves vertically or horizontally with the θ-axis penetrating the opening, and the above-mentioned opening is an opening cut in a substantially rectangular shape perpendicular to the moving direction, and also in the opening, the θ-axis has the shielding surface. The material moves vertically to the moving direction of the material, and the θ axis covers the moving range of the orthogonal moving surface.

[0006]

Then, when there is a part where the shape of the work is large and / or inclined, NC control is performed in the best relative direction of the part that turns the A-axis and the θ-axis and becomes the nozzle and the injection target. In addition, the X, Y, and Z axes can be driven to the best relative position of the nozzle that serves as the injection target along the shape of the work and NC control can be performed, so that the work is performed reliably. Can be done. Further, when the work is changed, only the control system of the work can be changed as long as the stroke of the device is not exceeded, and the equipment cost can be minimized. If two or more nozzles are mounted so as to face each other, the rotation of the A-axis and the θ-axis need only be half, so that it can be completed in a short time.

Further, even if the θ axis moves in the vertical or horizontal direction, an auxiliary shielding surface material is attached to the θ axis so that the portion where the θ axis does not occupy the opening part complements the opening part. Even if the θ axis moves perpendicularly to the moving direction by blocking the drop, the shielding surface material moves with the θ axis and the left and right ends of the shielding surface material are pulled out, so it is easy to interlock with the movement in that direction. You can do it. Therefore, it is possible to provide a device which can be hermetically sealed without the need for a large enclosure and is friendly to workers and the environment. Further, since the washing room is small and the apparatus is almost outside, maintenance is easy.

[0008]

Embodiments of the present invention will now be described with reference to the drawings. First, referring to the drawings, FIG. 1 is a side view of a cleaning machine 1 invented this time as a general-purpose cleaning machine, in which a cleaning chamber 2 includes a pedestal 6 surrounding a tank 5 for storing a cleaning liquid 4 kept warm by a heater 3. It is provided above. In addition, the cleaning chamber 2 has a door 8 which is opened and closed by an air cylinder 7.
Is provided on the front surface so that the work W can be put in and taken out. Further, on the base 8 connected to the base 6, a servo motor 9 rotates a ball screw 10 (also shown in FIG. 2) to horizontally drive via a rail member 11 and a horizontal X-axis 12 for NC control. , The servo motor 13 on the X-axis
Has a vertical Z-axis 16 that rotates the ball screw 14 and drives it vertically in the rail member 15 to perform NC control. The servo motor 17 rotates the ball screw 18 on the Z-axis to horizontally control the ball Z through the rail member 19. Horizontal Y driven to NC control
The shaft 20 is further on the Y-axis and the NC index table 21 is rotated to rotate the cleaning liquid 4 or the pipe 2 in the cleaning liquid 4.
A horizontal θ-axis 25 is formed to drive a support member 24 having spray nozzles 23, 23 for spraying the heated air that has passed through 2 alternately according to a set time, and to perform NC control.

Further, the θ-axis 25 penetrates a vertical rectangular opening (described later) of the shielding surface material 26 for preventing water droplets from scattering on the rear surface of the cleaning chamber 2, and the shielding surface material 26 is shown in FIG. As shown, it can be moved horizontally to prevent scattering. FIG. 2 is a front view of the washing machine 1 also invented this time, in which a high-pressure pump 27 for injection is provided under the base 6 and pressure-fed from the tank 5 to the nozzle 23 through a flexible tube (not shown). ing. Further, an NC index table 28 is installed on the pedestal 6, and a gripping member 29 having an opening in the center is rotated in order to grip the work W in the cleaning chamber 2 and clean it from below. Seals and penetrates the side wall 31 of the cleaning chamber 2. FIG. 3 is a cross-sectional view in which the cleaning chamber 2 is horizontally cut, in which the inside of the guide 32 of the shielding surface material 26 is Z-axis together with the θ axis 25.
An auxiliary shield plate 33 that moves the stroke of the shaft 16 is attached. In addition, the shielding surface material 26 has a U-shaped roll 3
Bend at a right angle at 4 and 34, and both ends are pulley 3 at the upper and lower ends.
It is connected endlessly with a ridge 36 and a wire rope 37 via 5 and 35. FIG. 4 is a bird's-eye view of a plate-shaped head cover H, which is an engine component of an automobile, and extends from a central portion 38 that bulges upward to a flat peripheral portion 40 via an inclined portion 39.

Now, a cleaning process of a head cover H which is an engine part of an automobile will be described as an example with reference to the drawings. Initially, the door 8 on the front of the cleaning chamber 2 is opened by the air cylinder 7, and the nozzle 22 together with the NC index table 21 is at the rearmost end. Therefore, the head cover H is manually set on the gripping member 28 which is horizontally controlled by a control not shown. When the switch of the board is turned on, first the gripping member 29
Grips the head cover H and grips the air cylinder 7
Closes the door 8. Further, the high-pressure pump 27 is operated and the cleaning liquid 4 which is kept at about 40 ° C. by the heater 3 of the tank 5 is pressure-fed to the nozzle 232 and jetted.

By the way, since the central portion 38 of the head cover H is bulged, the servo motor is firstly arranged so as not to interfere with the central portion 38 of the head cover H and the lower edge of the grip member 39 when the nozzles 23, 23 move forward. Thirteen
Rotates the ball screw 14 and moves the vertical Z through the rail member 15.
While driving the shaft 16 and performing NC control, the servo motor 17 rotates the ball screw 18 to drive the horizontal Y-axis 20 in the horizontal direction via the rail member 19 to move the nozzles 23, 23 to the central portion 38 of the head cover H at the horizontal position NC. The swelled servomotor 13 rotates the ball screw 14 and drives the vertical Z-axis 16 in the vertical direction via the rail member 15 to control the nozzle 2
The center portion 38 of the nozzle 3 and the nozzle 23 is controlled by NC. In the longitudinal direction of the head cover H, the nozzle 23,
23 is moved back and forth, and the servo motor 9 moves the ball screw 10
And the horizontal X-axis 12 through the rail member 11 in the horizontal direction.
Is also driven and moved to the left and right along with the above Y-axis to spray and wash from the nozzles 23, 23 evenly.

Next, the inclined portion 39 of the head cover H has a trapezoidal side surface having a substantially donut shape, and for cleaning the portion, the A-axis 30 is rotated with respect to the front and rear inclined surfaces to make the inclined surfaces substantially at right angles. NC control is performed to rotate the θ-axis 25 with respect to the left and right inclined surfaces to NC control the nozzles 23 substantially at right angles to the inclined surfaces, while driving the Z-axis 16 in response to changes in height due to the rotation, X, Y The shafts 12 and 20 are driven to perform NC control so as to draw a loop, and jet cleaning is performed from the nozzles 23 and 23. Then, the Z axis 16 is driven in response to the change in the bulge, and the X and Y axes 12, 20 as well as the A axis 30 and the θ axis 25 are driven or rotated to control the nozzles 23, 2 while performing NC control so as to draw a spiral loop.
Spray cleaning from 3.

Next, the peripheral portion 40 of the remaining head cover H
The servo motor 13 rotates the ball screw 14 and drives it vertically through the rail member 15 so that the peripheral edge portion 40 of the head cover H is positioned between the nozzles 23, 23.
The servo motor 9 rotates the ball screw 10 to drive the X and Y axes 12 and 20 horizontally through the rail member 11 to perform NC control, and the servo motor 17 controls the ball screw 18 to rotate.
Is rotated to drive horizontally through the rail member 19 and NC
The cleaning liquid is circulated around the peripheral portion 40 while controlling the cleaning liquid to the nozzle 2
Spray cleaning from 3 and 23. In this way, the cleaning is performed on the entire front and back surfaces and the process proceeds to the next step. In this draining step, the head cover H is dried by repeating the same operation by injecting warm air that has passed through the pipe 22 instead of the cleaning liquid. When the cleaning and drying process is completed, the door 8 of the cleaning chamber 2 is opened by the air cylinder 7 and the gripping member releases the grip of the head cover H, so that the head cover H is manually removed.

Although the cleaning of the head cover has been described here, it is designed so that the gripping member can be shared even with other works, and if the size of the work does not interfere with the stroke of the cleaning machine, only the control system can be used for various works. Can be easily applied with changes. If the gripping member cannot be used in common, a part of the gripping member can be set up and the rest can be easily applied by changing only the control system. Further, as another application example, the explanation of the washing machine is omitted, but it goes without saying that the same effect can be obtained even if another liquid or powder is used.

[0015]

As described above, since the work is washed by the washing machine in which the X, Y and Z axes are NC controlled and the horizontal A axis and θ axis are NC controlled, even if the type of the work is changed, the shape is slightly changed. Even if the size changes, it can be handled only by the control system, and since water drop shielding can be achieved with a simple device, contamination of the washing machine can be prevented and maintenance is easy,
The equipment cost is suppressed as much as possible, and the product cost can be reduced.

[Brief description of drawings]

FIG. 1 is a side view of a washing machine of the present invention.

FIG. 2 is a front view of the washing machine of the present invention.

FIG. 3 is an explanatory view of a water drop shield of the washing machine of the present invention.

FIG. 4 is a bird's-eye view of the head cover of the embodiment.

[Explanation of symbols]

 1 Cleaning Machine 2 Cleaning Room 3 Heater 4 Cleaning Liquid 5 Tank 6 Stand 7 Air Cylinder 8 Door 9 Servo Motor 10 Ball Screw 11 Rail Member 12 Horizontal X Axis 13 Servo Motor 14 Ball Screw 15 Rail Member 16 Vertical Z Axis 17 Servo Motor 18 Ball Screw 19 Rail Member 20 Horizontal Y axis 21 NC index table 22 Tube 23 Injection nozzle 24 Support member 25 Horizontal θ axis 26 Shielding surface material 27 High pressure pump 28 NC index table 29 Gripping member 30 A axis 31 Side wall 32 Guide 33 Auxiliary shield plate 34 Roll 35 Pulley 36 Spring 37 Wire Rope 38 Center 39 Slope 40 Perimeter H Headcover W Work

Claims (4)

[Claims] 1. An injection device for injecting a fluid or powder from a nozzle, the three-dimensional NC driving X, Y, and Z axes.
Control and / or rotation of the workpiece gripping member parallel to the X-axis for NC control A-axis for vertical control and / or a supporting member for supporting the nozzle on the vertical drive shaft is rotated in the axial direction orthogonal to the A-axis. A hermetically-sealed injection device comprising: a θ axis for controlling. 2. The apparatus according to claim 1, wherein
The particle drop shielding method in the θ-axis direction is a method of shielding with a shielding surface material orthogonal to the θ-axis, and both ends of the shielding surface material are endlessly tensioned and connected by a string body, A shielding method which moves in the horizontal or vertical direction along with the movement of the θ axis, and the θ axis penetrates through an opening defined perpendicularly to the moving direction of the shielding surface material. 3. A cleaning machine, wherein the apparatus according to claim 1 is intended for cleaning a work. 4. A washing machine according to claim 3, wherein the washing method uses the shielding method according to claim 2.