JP4793276B2 - Foreign object detection and collection machine - Google Patents

Description

  The present invention relates to a foreign object detection and collection machine capable of sucking a cleaning surface of a work (object to be sucked) and detecting contamination of the cleaning surface.

For example, in a component such as a valve body used in an automatic transmission, a number of oil passage grooves and the like for allowing hydraulic oil to pass are formed in order to perform a hydraulic operation. If assembly is performed with foreign matter such as cutting waste and dust mixed in the oil passage groove, the product performance may be greatly affected. Therefore, using a foreign material collecting machine (vacuum cleaner), the component surface in which the oil passage groove or the like is formed in the above-described components is sucked to clean the component surface.
And in order to confirm whether the said component has mixed in the foreign material, after cleaning regularly with a foreign material collector, the foreign material adhering to the filter in a foreign material collector is investigated.

  However, in the conventional foreign material collecting machine, it is only possible to confirm whether or not the foreign material has been mixed in after the entire component (work) has been cleaned. For this reason, even when foreign matters are mixed in the component parts, it has not been possible to quickly confirm where the component parts have been mixed or what kind of foreign matters have been mixed into the component parts. Therefore, further ingenuity has been required for quickly recognizing the location and type of foreign matter.

  Further, in order to confirm the contamination of the foreign matter in the component parts, it is conceivable to provide a foreign matter detection sensor such as a photoelectric type or a magnetic type in the suction pipe of the foreign matter collector. However, in order to enable detection of a foreign object by the foreign object detection sensor, it is necessary to reduce the flow rate of the foreign object that passes through the foreign object detection sensor, that is, the suction force of the foreign object collector. On the other hand, when the suction force of the foreign material collecting machine is reduced, there is a possibility that the foreign material cannot be sufficiently sucked even when the foreign material is mixed into the component surface of the component.

  Patent Document 1 discloses a foreign object that can detect the position and size of a foreign object on the inspection object by scanning the inspection object with a light beam and photoelectrically detecting scattered light generated from the inspection object. An inspection device is disclosed. Patent Document 2 discloses a cyclone-type foreign matter collecting apparatus having a cyclone device that sucks a foreign substance mixture containing foreign matters collected by a cleaning device, and a collection container that collects foreign substances contained in the foreign substance mixture. It is disclosed. However, also in Patent Documents 1 and 2, there is no contrivance for quickly recognizing the location, type, etc. of foreign matter and detecting foreign matter stably without reducing the suction force of the foreign matter collector. Not done.

JP-A-6-3281 Japanese Patent Laid-Open No. 11-104521

  The present invention has been made in view of such conventional problems, and can quickly recognize the location and type of foreign matter mixed in, and can stably mix foreign matter without reducing the suction force in the suction nozzle. It is an object of the present invention to provide a foreign object detection and collection machine that can detect the above.

The present invention is a foreign matter detection and collection machine capable of sucking a cleaning surface of a workpiece and detecting foreign matter sucked from the cleaning surface,
A cyclone container having a cylindrical shape and disposed with the axial direction of the cylindrical shape oriented in the vertical direction;
A main suction machine for connecting to the cyclone container by a main suction pipe and making the inside of the cyclone container have a negative pressure;
It is disposed at the tip of the nozzle pipe drawn from the vicinity of the upper end of the side wall portion of the cyclone container, performs suction of the cleaning surface, and has a suction position close to the cleaning surface of the workpiece, and more than the suction position. A suction nozzle movable to a retracted retracted position ;
A moving guide for moving the suction nozzle in the X direction of the cleaning surface of the workpiece and in the Y direction orthogonal to the X direction;
A position detection sensor attached to the movement guide for detecting the X-direction position and the Y-direction position of the suction nozzle;
A suction detection switch attached to the suction nozzle for detecting that the suction nozzle is in the suction position;
The cyclone container is connected to the cyclone container by a secondary suction pipe drawn from the bottom of the cyclone container or near the lower end of the side wall part, and is operated with a suction force smaller than that of the main suction machine to further remove foreign matter sucked into the cyclone container. A sub-suction machine to suck,
A foreign matter detection sensor disposed in the secondary suction pipe in the secondary suction machine;
Display means for assigning the cleaning surface of the workpiece to a plurality of cells and displaying when the foreign object is detected by the foreign object detection sensor ,
A foreign matter collecting filter disposed on the downstream side of the suction direction of the portion where the foreign matter detection sensor is provided in the sub suction pipe, and collecting foreign matter that has passed through the foreign matter detection sensor;
A suction force generated by the suction nozzle is generated by a suction force that sucks the cyclone container from the main suction pipe, and a swirl flow of air formed downward in the cyclone container causes a suction force to be generated in the cyclone container. After moving the sucked foreign matter downward, the foreign matter is configured to be sucked into the auxiliary suction pipe .
When the suction detection switch detects that the suction nozzle is in the suction position, the position detection sensor detects the X-direction position and the Y-direction position of the suction nozzle, and the display means detects the X-direction. The display state corresponding to the position and the Y direction position is configured to be changed with respect to the display state before suction,
When the foreign matter detection sensor detects a foreign matter, the display means is a foreign matter detection and collection machine configured to display the number of detected foreign matters in a grid where the foreign matter is detected ( Claim 1).

  The foreign object detection and collection machine of the present invention uses two suction machines, a main suction machine and a secondary suction machine, and utilizes a swirl flow in a cyclone container, thereby providing a sufficient suction force at the suction nozzle and stability by the foreign object detection sensor. It is possible to achieve both detection of foreign matter. Further, the foreign object detection / collection machine of the present invention displays the fact that the foreign object is detected by the foreign object detection sensor on the display means, thereby making it possible to recognize the foreign matter mixing location on the cleaning surface of the workpiece, By adhering to the surface, the type of the foreign matter can be recognized.

  When the cleaning surface of the workpiece is cleaned by the foreign matter detection and collection machine of the present invention, the main suction device and the sub suction device are operated, and the cleaning surface is sucked by the suction nozzle. At this time, the suction force by the suction nozzle can be generated by a large suction force that sucks the inside of the cyclone container from the main suction pipe in the main suction machine. At this time, since the nozzle pipe of the suction nozzle is drawn from the vicinity of the upper end of the side wall portion of the cyclone container, a swirling flow of air flowing while turning downward is formed in the cyclone container. In addition, the suction force which sucks the inside of a cyclone container from sub suction piping may be added to the suction force by a suction nozzle.

  Thereby, the foreign material sucked into the cyclone container via the nozzle pipe from the suction nozzle is carried downward in the cyclone container by the swirling flow of the air. Next, the foreign matter is sucked from the bottom of the cyclone container or the vicinity of the lower end of the side wall to the sub suction pipe in the sub suction machine that operates with a suction force smaller than the suction force of the main suction machine. The speed of the foreign matter passing through the sub suction pipe can be set to a predetermined speed suitable for detection by the foreign matter detection sensor.

  Thus, in the present invention, the suction force by the suction nozzle can be generated by using the suction force by the main suction device having a large suction force, and the foreign matter sucked from the suction nozzle is a sub suction device having a small suction force. The foreign object detection sensor can be stably detected by allowing the foreign object detection sensor to pass slowly by the suction force generated by.

  In the present invention, the display means can display that a foreign object has been detected by the foreign object detection sensor. Thereby, the operator can quickly recognize from which part of the cleaning surface of the workpiece the foreign matter has been sucked when the display means displays that foreign matter is detected. Also, the operator can quickly recognize what kind of foreign matter has been sucked from the cleaning surface of the workpiece by visually checking the foreign matter attached to the foreign matter collecting filter.

  Therefore, according to the foreign object detection / collection machine of the present invention, it is possible to quickly recognize the foreign material contamination location, type, etc., and stably detect foreign material contamination without reducing the suction force of the suction nozzle. be able to.

A preferred embodiment of the present invention described above will be described.
In this invention, the said foreign material detection sensor can detect the detection of the foreign material of the magnitude | size whose longest part is 0.2-0.6 mm.
The main suction pipe has an opening tip disposed in the cyclone container from the center of the upper end of the cyclone container, and the nozzle pipe is directed substantially tangentially in the vicinity of the upper end of the side wall of the cyclone container. And can be connected to the cyclone container (claim 2).
In this case, the swirl flow of the air can be easily formed in the cyclone container.

The foreign matter collecting filter is detachably disposed, and after the foreign matter detection sensor detects the foreign matter, the foreign matter collecting filter to which the foreign matter is attached can be removed to check the foreign matter. (Claim 3).
In this case, when a foreign object is detected by the foreign object detection sensor, the operator quickly recognizes the type of the foreign object by removing the foreign substance collecting filter and visually observing the foreign substance adhering to the foreign substance collecting filter. can do.

  In addition to making the foreign matter collecting filter detachable, for example, in the foreign matter detecting and collecting machine, a camera for monitoring the foreign matter collecting filter can be provided. In this case, the operator can recognize the type of the foreign matter attached to the foreign matter collecting filter by visually recognizing the video by the camera.

The display means is configured to display where the suction nozzle is sucking a part of the cleaning surface of the workpiece. When the foreign object detection sensor detects the foreign object, the foreign object is detected by the workpiece. It is comprised so that it may display from which site | part of the cleaning surface in the.
In this case, the operator can quickly and easily recognize where the foreign matter has entered the cleaning surface of the workpiece by visually recognizing the display means.

Further, the display means is configured to display the cleaning surface of the work by assigning to a plurality of cells, and when the foreign object detection sensor detects a foreign material, the display unit detects the foreign material on the screen where the foreign material is detected. It is configured to display the number of detections.
Thereby , the operator can recognize quickly and easily how many foreign substances are mixed in which square of the cleaning surface of the workpiece by visually recognizing the display means. The grid means a region in which the cleaning surface of the workpiece is partitioned in a lattice shape, and is used to mean either the grid on the display means or the grid on the cleaning surface of the workpiece.

Further, the display means is configured to change a display state of the mesh that has been suctioned by the suction nozzle among the plurality of meshes with respect to a display state before the suction, and to maintain the display state after the change. (Claim 4 ).
In this case, the operator can easily recognize the cell that has already been sucked on the cleaning surface of the work by visually recognizing the display means.

The suction nozzle is attached to a moving guide configured to move the suction nozzle in the X direction of the cleaning surface of the workpiece and in the Y direction orthogonal to the X direction. A position detection sensor for detecting each of the X-direction position and the Y-direction position is attached, and the suction nozzle moves to a suction position approaching the cleaning surface of the workpiece and a retreat position retracted from the suction position. The suction nozzle is attached with a suction detection switch that detects that the suction nozzle is in the suction position, and when the suction detection switch detects that the suction nozzle is in the suction position, the position detection sensor The suction nozzle X-direction position and Y-direction position are detected, and the display state of the cells corresponding to the X-direction position and the Y-direction position is indicated as the display state before suction. It is configured so as to vary for.
Thereby , it is possible to display a cell that has already been sucked on the cleaning surface of the workpiece with a simple apparatus configuration.

Further, it is preferable that the control means for controlling the display means is configured to store how many foreign objects are present in which of the plurality of cells in the work (claim 5 ).
In this case, the control means can store a history of the contamination state of a plurality of workpieces, and this history can be used when analyzing the cause of the contamination.

Moreover, the work is a valve body or casing used in automatic transmissions, the cleaning surface may be a component surface forming the oil passage groove (claim 6).
In this case, it is possible to quickly recognize the location and type of foreign matter mixed in the oil passage groove in the valve body or case.

Hereinafter, embodiments of the foreign object detection and collection machine of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the foreign object detection / collecting machine 1 of the present example sucks and cleans the cleaning surface 81 of the work 8 and quickly detects the foreign material P when the foreign material P is sucked from the cleaning surface 81. It is something that can be done.
The foreign matter detection and collection machine 1 includes a cyclone container 21, a main suction device 3, a suction nozzle 22, a secondary suction device 4, a foreign matter detection sensor 45, a display means 5, a foreign matter collection filter 6, and a control means 7.

As shown in the figure, the cyclone container 21 has a cylindrical shape and is disposed with the axial direction of the cylindrical shape directed in the vertical direction. The main suction machine 3 is connected to the cyclone container 21 by a main suction pipe 31 and is configured to generate a suction force by the suction nozzle 22 by making the inside of the cyclone container 21 have a negative pressure.
The suction nozzle 22 is disposed at the tip end of the nozzle pipe 221 drawn from the vicinity of the upper end of the side wall 213 of the cyclone container 21, and faces the cleaning surface 81 of the workpiece 8 to suck the cleaning surface 81. Is. The sub-suction machine 4 is connected to the cyclone container 21 by the sub-suction pipe 41 drawn from the bottom 212 of the cyclone container 21 or the vicinity of the lower end of the side wall part 213, and operates with a suction force smaller than that of the main suction machine 3, The foreign matter P sucked into the cyclone container 21 from the suction nozzle 22 is further sucked.

  As shown in FIG. 1, the foreign matter detection sensor 45 is disposed in the sub suction pipe 41 and is configured to detect the foreign matter P passing through the sub suction pipe 41. The display means 5 is configured to display that the foreign matter P is detected by the foreign matter detection sensor 45. The foreign matter collecting filter 6 is disposed on the downstream side in the suction direction of the portion where the foreign matter detection sensor 45 is provided in the auxiliary suction pipe 41, and collects the foreign matter P that has passed through the foreign matter detection sensor 45. The control means 7 is configured to display on the display means 5 that the foreign matter detection sensor 45 has detected the foreign matter P.

  The foreign matter detection and collection machine 1 generates a suction force by the suction nozzle 22 by a suction force that sucks the inside of the cyclone container 21 from the main suction pipe 31, and air that is formed downward in the cyclone container 21. The foreign matter P sucked into the cyclone container 21 is moved downward by the swirling flow, and then the foreign matter P is sucked into the auxiliary suction pipe 41.

Hereinafter, the foreign object detection and collection machine 1 of this example will be described in detail with reference to FIGS.
As shown in FIG. 1, the foreign matter detection and collection machine 1 of this example uses two suction machines, a main suction machine 3 and a sub suction machine 4, and uses a swirl flow in a cyclone container 21, thereby It is possible to achieve both sufficient suction force and stable detection of the foreign matter P by the foreign matter detection sensor 45. In addition, the foreign matter detection and collection machine 1 of this example can recognize the contamination location of the foreign matter P on the cleaning surface 81 of the workpiece 8 by displaying on the display means 5 that the foreign matter P has been detected by the foreign matter detection sensor 45. By attaching the foreign matter P to the foreign matter collecting filter 6, the type of the foreign matter P can be recognized.

As shown in FIG. 1, the cyclone container 21 of this example is formed in a shape that closes the upper end portion 211 and the lower end portion of a cylindrical side wall portion 213 to form a cylindrical closed space 210 inside. In the main suction pipe 31 of this example, the opening tip 311 is arranged in the cyclone container 21 from the center (the center in the cross-sectional direction perpendicular to the axial direction of the cylindrical shape) at the upper end 211 of the cyclone container 21. is there. A filter 312 for preventing the foreign matter P from being sucked into the main suction pipe 31 is provided at the opening tip 311 of this example. And the lower end position (the lower end position of the filter 312 in this example) of the opening front-end | tip part 311 is located below the opening position of the nozzle piping 221 with respect to the cyclone container 21 (center side of a cylindrical shape axial direction). .
As shown in FIG. 6, the nozzle pipe 221 of the suction nozzle 22 is slightly inclined toward the center of the cylindrical shape with respect to the substantially tangential direction (tangential direction or tangential direction) in the vicinity of the upper end of the side wall portion 213 of the cyclone container 21. May be connected to the cyclone container 21.

The main suction device 3 of this example is operated with a large suction force suitable for the suction nozzle 22 to suck the cleaning surface 81 of the workpiece 8, and the sub suction device 4 of this example is based on the suction force of the main suction device 3. The foreign matter P sucked into the cyclone container 21 is operated with a suction force suitable for passing the detection part 450 of the foreign matter detection sensor 45 in the auxiliary suction pipe 41. Specifically, in this example, the suction power of the suction nozzle 22 (mainly by the main suction machine 3) is 982 (W), whereas the detection unit of the foreign matter detection sensor 45 in the sub suction pipe 41 is used. The suction power at 450 was 202 (W). The flow rate and degree of vacuum in the suction nozzle 22 were 38.4 (m ^{3 /} H) and −8.9 (kPa), respectively, whereas the flow rate and degree of vacuum in the detection unit 450 of the foreign matter detection sensor 45 were. Were 7.2 (m ^{3 /} H) and −0.2 (kPa), respectively.

As shown in FIGS. 2 and 3, the foreign material collecting filter 6 of this example is detachably disposed on the sub suction pipe 41. The foreign matter collecting filter 6 is disposed in a filter storage container 60 provided in the sub suction pipe 41. This filter storage container 60 prevents the container main body 61 provided with the arrangement hole 611 for arranging the foreign substance collecting filter 6 and the foreign substance collection filter 6 arranged in the arrangement hole 611 so as to cover the outer periphery of the container main body 61. And a cover portion 62 to be performed. Further, O-rings 612 are provided on both sides of the container main body 61 in the suction direction of the foreign material collecting filter 6 to prevent air leakage around the foreign material collecting filter 6.
In this example, after the foreign matter detection sensor 45 detects the foreign matter P, the operator slides the cover portion 62 with respect to the container main body portion 61 as shown in FIG. The type of the foreign matter P can be confirmed by removing the collection filter 6 from the container main body 61.

  As shown in FIG. 1, the foreign object detection sensor 45 of this example is configured by a photoelectric sensor 45 that measures a change in the amount of light and detects the passage of an object in the detection unit 450. The photoelectric sensor 45 has a light projecting unit 451 and a light receiving unit 452 oriented on both sides of the auxiliary suction pipe 41, and the foreign matter P blocks the light projected from the light projecting unit 451 to the light receiving unit 452. The foreign matter P is detected. The detection unit 450 in the foreign matter detection sensor 45 of this example is formed by forming a 4 mm square hole through which the fluid (air) containing the foreign matter P passes between the light projecting unit 451 and the light receiving unit 452. And the foreign material detection sensor 45 can detect the foreign material P of the magnitude | size whose longest part is 0.2-0.6 mm.

  As shown in FIGS. 4 to 6, the foreign object detection / collection machine 1 of the present example includes a cyclone container 21, a main suction device 3, a suction nozzle 22, a sub suction device 4, a foreign matter detection sensor 45, a display unit 5, and a foreign matter collection filter 6. The control means 7 is arranged on the gantry 11. A mounting table 111 on which the workpiece 8 is placed is provided at the upper part of the gantry 11, and the suction nozzle 22 extends downward from the suction port 224 (see FIGS. 8 and 9) above the mounting table 111. It is arranged to be movable in the up and down direction and in the horizontal direction. FIG. 4 shows the piping state of the suction nozzle 22, the main suction device 3, and the sub suction device 4.

A display means (display monitor) 5 including a display unit 50 such as a liquid crystal screen is disposed on the gantry 11.
As shown in FIG. 7, the display unit 50 of the display unit 5 of this example assigns and displays the cleaning surface 81 of the work 8 to a plurality of grids (regions partitioned in a lattice shape) 51. On the display unit 50 of the display means 5, the cleaning surface 81 of the work 8 is projected by the plurality of cells 51 in a state of being divided into the X direction and the Y direction orthogonal to the X direction, and is sucked by the suction nozzle 22. The number of detected foreign matter P is displayed in order from the square 51 that has been subjected to. In FIG. 7, the X direction and the Y direction are indicated by X and Y, respectively.

  As shown in FIGS. 4 to 6, the suction nozzle 22 of the present example is configured to move the suction nozzle 22 in the X direction of the cleaning surface 81 of the work 8 and the Y direction orthogonal to the X direction. 12 is attached. The movement guide 12 is configured by using an X-direction linear guide 13X provided along the X direction and a Y-direction linear guide 13Y provided along the Y direction. Each linear guide 13X, Y is configured to slide a slider 132 with respect to the guide rail 131.

  The suction nozzle 22 is fixed to the X-direction slide base 14X to which the slider 132 of the X-direction linear guide 13X is fixed, and the guide rail 131 of the X-direction linear guide 13X is Y to which the slider 132 of the Y-direction linear guide 13Y is fixed. It is fixed to the direction slide base 14Y. The guide rail 131 of the Y-direction linear guide 13Y is fixed to the gantry 11.

  Position detection sensors 15X and 15 for detecting the X-direction position and the Y-direction position of the suction nozzle 21 are attached to the movement guide 12. As shown in FIG. 5, the X-direction position detection sensor 15X is configured to measure a relative slide distance between the X-direction slide base 14X and the Y-direction slide base 14Y. As shown in FIG. 4, the Y-direction position detection sensor 15 </ b> Y is configured to measure a relative slide distance between the Y-direction slide base 14 </ b> Y and the gantry 11. Each position detection sensor 15X, Y is configured using a linear encoder.

  As shown in FIGS. 8 and 9, the suction nozzle 22 is movable (floating) in the vertical direction facing the cleaning surface 81 of the workpiece 8, and the suction position 202 close to the cleaning surface 81 of the workpiece 8; It is possible to move to a retreat position 201 that is retracted from the suction position 202. The suction detection switch 16 for detecting that the suction nozzle 22 is at the suction position 202 is attached to the suction nozzle 22.

  The suction nozzle 22 is configured such that a flange portion 222 of a nozzle main body 220 having a suction port 224 below is arranged so as to be floatable via a compression spring 223 with respect to the X-direction slide base 14X. As shown in FIG. 9, after the operator moves the nozzle body 220 to the suction position 202, the nozzle body 220 can be returned to the retracted position 201 by the repulsive force of the compression spring 223.

Further, the diameter of the suction port 224 of the suction nozzle 22 is larger than the size of the mesh 51 that defines the cleaning surface 81 of the workpiece 8. Thereby, the suction leak of the foreign material P in the cleaning surface 81 of the workpiece | work 8 can be prevented easily.
The suction nozzle 22 of this example is manually moved by an operator and moved in the vertical direction and the horizontal direction. On the other hand, the suction nozzle 22 can be configured to be moved in the vertical direction and the horizontal direction by the control means 7 using an actuator such as a motor or a cylinder.

When the suction detection switch 16 detects that the suction nozzle 22 has moved to the suction position 202, the control means 7 detects the X-direction position and the Y-direction position of the suction nozzle 22 by the position detection sensors 15X and Y, respectively. It is configured as follows. Then, as shown in FIG. 7, the control means 7 determines the display state of the cells 51 corresponding to the X direction position and the Y direction position from the information of the detected X direction position and Y direction position, and the display state before suction. It is comprised so that it may change with respect to. And the control means 7 changes the display state of the cell 51A in which suction is performed by the suction nozzle 22 among the plurality of cells 51 on the display unit 50 of the display unit 5 of this example with respect to the display state before suction. The display state after the change is maintained.
In FIG. 7, the grid 51 </ b> A where the suction nozzle 22 performs suction is indicated by a two-dot chain line circle A.

  Further, in this example, in the display unit 50 of the display means 5, the cells 51A corresponding to the X-direction position and the Y-direction position of the suction nozzle 22 when the suction detection switch 16 is turned on (detected state) A different display color is displayed with respect to the previous display color. Further, the state in which the display color is changed is maintained until the suction of the workpiece 8 to the cleaning surface 81 is completed. In FIG. 7, the grid 51A whose display color has changed is shown by hatching.

  In addition, after the suction nozzle 22 performs suction on each cell 51 on the cleaning surface 81 of the workpiece 8, the number of foreign objects P detected on each cell 51 (zero (0) is displayed when no foreign material P is detected). .) Is displayed. FIG. 7 shows that the number of detected foreign matter P is displayed by numbers on the square 51A that has been sucked.

  In this example, the detection of the foreign matter P by the foreign matter detection sensor 45 is started when the suction detection switch 16 is turned on (when the suction of the cleaning surface 81 is started), and the suction detection switch 16 is turned off. (When the suction of the cleaning surface 81 is stopped). The detection of the foreign matter P by the foreign matter detection sensor 45 is repeatedly started and stopped every time the suction nozzle 22 sucks each cell 51 on the cleaning surface 81 of the workpiece 8.

Further, the control means 7 is configured to store a history of the state of contamination of foreign matter P in a plurality of workpieces 8. The control means 7 is configured to store the number of detected foreign matter P (which is often zero) for all the cells 51 displayed on the display unit 50 of the display means 5 after the workpiece 8 is sucked. is there. The history of the contamination status of the foreign matter P stored in the control means 7 can be useful when analyzing the cause of the contamination.
The workpiece 8 of this example is a valve body or case used for an automatic transmission, and the cleaning surface 81 of the workpiece 8 is a component surface in which an oil passage groove 811 is formed.

  When the cleaning surface 81 of the workpiece 8 is cleaned by the foreign matter detection and collection machine 1 of this example, the main suction device 3 and the sub suction device 4 are operated, and the cleaning surface 81 is sucked by the suction nozzle 22. At this time, the suction force by the suction nozzle 22 can be generated by a large suction force that sucks the inside of the cyclone container 21 from the main suction pipe 31 in the main suction machine 3. At this time, the nozzle pipe 221 of the suction nozzle 22 is connected to the cyclone container 21 in the tangential direction in the vicinity of the upper end of the side wall portion 213 of the cyclone container 21. A swirling flow of air flowing while swirling toward is formed. Note that the suction force by the suction nozzle 22 may include a suction force for sucking the cyclone container 21 from the sub suction pipe 41.

  Thus, the foreign matter P sucked into the cyclone container 21 from the suction nozzle 22 via the nozzle pipe 221 is carried downward in the cyclone container 21 by the swirling flow of the air. Next, the foreign matter P is sucked from the bottom 212 of the cyclone container 21 or the vicinity of the lower end of the side wall 213 to the sub suction pipe 41 in the sub suction machine 4 that operates with a suction force smaller than the suction force of the main suction machine 3. The The speed of the foreign matter P passing through the sub suction pipe 41 can be set to a predetermined speed suitable for detection by the foreign matter detection sensor 45.

  Thus, in this example, the suction force by the suction nozzle 22 can be generated by using the suction force by the main suction device 3 having a large suction force, and the foreign matter P sucked from the suction nozzle 22 has the suction force. By slowly passing the foreign object detection sensor 45 by the suction force of the small auxiliary suction device 4, the foreign object P can be stably detected by the foreign object detection sensor 45.

  Further, in this example, when the foreign matter P is detected by the foreign matter detection sensor 45, the number of detected foreign matters P in each cell 51 can be displayed on the display unit 50 of the display unit 5. Thereby, the operator can quickly recognize how many foreign objects P are sucked from which square 51 of the cleaning surface 81 of the workpiece 8. Further, when the foreign matter P is detected, the operator can quickly recognize what foreign matter P is sucked from the cleaning surface 81 of the work 8 by visually checking the foreign matter P adhering to the foreign matter collecting filter 6. can do.

  Therefore, according to the foreign matter detection and collection machine 1 of this example, the location, number and type of foreign matter P on the cleaning surface 81 of the workpiece 8 can be quickly recognized, and the suction force of the suction nozzle 22 can be reduced. It is possible to stably detect the contamination of the foreign matter P without reducing it.

Explanatory drawing which shows the structure of the foreign material detection collection machine in an Example. Explanatory drawing which shows the foreign material collection filter arrange | positioned in the filter storage container in an Example. Explanatory drawing which shows the foreign material collection filter removed from the filter storage container in an Example. The front view which shows the foreign material detection collection machine in an Example. The side view which shows the foreign material detection collection machine in an Example. The top view which shows the foreign material detection collection machine in an Example. Explanatory drawing which shows the display part in the display means in an Example. Explanatory drawing which shows the suction nozzle in a retracted position in an Example. Explanatory drawing which shows the suction nozzle in a suction position in an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foreign object detection collection machine 11 Base 12 Movement guide 15X, Y Position detection sensor 16 Suction detection switch 21 Cyclone container 211 Upper end part 212 Bottom part 213 Side wall part 22 Suction nozzle 201 Retraction position 202 Suction position 221 Nozzle piping 3 Main suction machine 31 Main suction Piping 311 Opening tip 4 Sub suction machine 41 Sub suction pipe 45 Foreign matter detection sensor 5 Display means 50 Display portion 51 Cell 6 Foreign matter collecting filter 7 Control means 8 Work 81 Cleaning surface P Foreign matter

Claims (6)

A foreign matter detection and collection machine capable of sucking a cleaning surface of a workpiece and detecting foreign matter sucked from the cleaning surface,
A cyclone container having a cylindrical shape and disposed with the axial direction of the cylindrical shape oriented in the vertical direction;
A main suction machine for connecting to the cyclone container by a main suction pipe and making the inside of the cyclone container have a negative pressure;
It is disposed at the tip of the nozzle pipe drawn from the vicinity of the upper end of the side wall portion of the cyclone container, performs suction of the cleaning surface, and has a suction position close to the cleaning surface of the workpiece, and more than the suction position. A suction nozzle movable to a retracted retracted position ;
A moving guide for moving the suction nozzle in the X direction of the cleaning surface of the workpiece and in the Y direction orthogonal to the X direction;
A position detection sensor attached to the movement guide for detecting the X-direction position and the Y-direction position of the suction nozzle;
A suction detection switch attached to the suction nozzle for detecting that the suction nozzle is in the suction position;
The cyclone container is connected to the cyclone container by a secondary suction pipe drawn from the bottom of the cyclone container or near the lower end of the side wall part, and is operated with a suction force smaller than that of the main suction machine to further remove foreign matter sucked into the cyclone container. A sub-suction machine to suck,
A foreign matter detection sensor disposed in the secondary suction pipe in the secondary suction machine;
Display means for assigning the cleaning surface of the workpiece to a plurality of cells and displaying when the foreign object is detected by the foreign object detection sensor ,
A foreign matter collecting filter disposed on the downstream side of the suction direction of the portion where the foreign matter detection sensor is provided in the sub suction pipe, and collecting foreign matter that has passed through the foreign matter detection sensor;
A suction force generated by the suction nozzle is generated by a suction force that sucks the cyclone container from the main suction pipe, and a swirl flow of air formed downward in the cyclone container causes a suction force to be generated in the cyclone container. After moving the sucked foreign matter downward, the foreign matter is configured to be sucked into the auxiliary suction pipe .
When the suction detection switch detects that the suction nozzle is in the suction position, the position detection sensor detects the X-direction position and the Y-direction position of the suction nozzle, and the display means detects the X-direction. The display state corresponding to the position and the Y direction position is configured to be changed with respect to the display state before suction,
The foreign matter detection and collection machine , wherein when the foreign matter detection sensor detects a foreign matter, the display means is configured to display the number of detected foreign matters in a grid where the foreign matter is detected.   2. The main suction pipe according to claim 1, wherein an opening front end portion of the main suction pipe is disposed in the cyclone container from a center portion at an upper end portion of the cyclone container, and the nozzle pipe is near an upper end of a side wall portion of the cyclone container. And a foreign matter detecting and collecting machine connected to the cyclone container in a substantially tangential direction.   3. The foreign matter collecting filter according to claim 1 or 2, wherein the foreign matter collecting filter is detachably disposed, and after the foreign matter detection sensor detects the foreign matter, the foreign matter collecting filter to which the foreign matter is attached is removed to remove the foreign matter. A foreign object detection and collection machine configured to perform confirmation. The display unit according to any one of claims 1 to 3, wherein the display unit changes a display state of the cells that have been suctioned by the suction nozzle among the plurality of cells to a display state before suction. A foreign object detection and collection machine configured to maintain a display state after change. The control means for controlling the display means according to any one of claims 1 to 4 is configured to store how many foreign objects are present in which of the plurality of cells in the work. A foreign object detection and collection machine characterized by being. 6. The foreign object detection according to claim 1, wherein the workpiece is a valve body or a case used for an automatic transmission, and the cleaning surface is a component surface in which an oil passage groove is formed. Collection machine.

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