CN111842287A - Non-contact positioning device for jet cleaning, cleaning system and method - Google Patents
Non-contact positioning device for jet cleaning, cleaning system and method Download PDFInfo
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- CN111842287A CN111842287A CN202010647821.XA CN202010647821A CN111842287A CN 111842287 A CN111842287 A CN 111842287A CN 202010647821 A CN202010647821 A CN 202010647821A CN 111842287 A CN111842287 A CN 111842287A
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- nozzle
- cleaned
- laser
- piece
- laser emitter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Abstract
The utility model relates to a non-contact positioning device, a cleaning system and a method for jet cleaning, which comprises a reflector and a laser emitter which can rotate along a set axis, wherein the plane where the reflector is located is parallel to the spraying direction of a nozzle; the laser emitter is arranged on one side of the nozzle, and the rotating axis of the laser emitter is perpendicular to the spraying direction of the nozzle and is parallel to the plane where the reflector is located; the reflector and the laser emitter are respectively supported by a support; under the condition that the emission direction of the laser emitter is matched with the distance between the nozzle and the piece to be cleaned, the laser beam can be reflected by the reflector and then irradiates a cleaning point in the piece to be cleaned, wherein the cleaning point is right opposite to the nozzle. The jet flow cleaning device can realize the positioning work before jet flow cleaning, so that the water flow is accurately sprayed to the position to be cleaned.
Description
Technical Field
The disclosure belongs to the field of jet cleaning, and particularly relates to a non-contact positioning device, a cleaning system and a method for jet cleaning.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
At present, instruments or experimental equipment with low automation degree generally need to manually determine and adjust the position of a piece to be cleaned in the early stage of cleaning when the equipment is used for remanufacturing and cleaning dirt. When different types of workpieces are cleaned, the cleaned parts have the problems of different sizes, different thicknesses, different target distances and the like, the positions of the parts to be cleaned need to be determined and adjusted again, and most of the existing methods use experience methods or subjective intuition methods.
Specifically, this type of cleaning system generally includes nozzle and anchor clamps of relative setting, and the general level of nozzle sprays the washing liquid, and the anchor clamps centre gripping is waited to wash the piece for wait to wash the surface of waiting to wash the piece and just being directed at the nozzle.
The inventor has realized that for a slightly larger piece to be cleaned, the approximate position of the piece to be cleaned is judged according to naked eyes, and at this time, the effectiveness of jet cleaning cannot be ensured, and the condition that the position of the piece to be cleaned deviates to influence the cleaning effect exists, so that the position needs to be further adjusted.
For some pieces to be cleaned with smaller sizes, after the positions are roughly judged, whether the jet flow is accurately sprayed to the surface to be cleaned is generally judged by a pre-experiment method, and the positions of the pieces to be cleaned can be accurately determined only by performing the pre-experiment for multiple times, so that a large amount of time is wasted, and resources are also wasted to a certain extent.
Disclosure of Invention
The purpose of the disclosure is to provide a non-contact positioning device, a cleaning system and a method for jet cleaning, which can judge whether the drop point of the jet falls on the dirt of a piece to be cleaned before cleaning, avoid errors of visual observation and the complexity of repeated adjustment, and save the process time.
To achieve the above object, a first aspect of the present disclosure provides a laser emitting device including a mirror and a laser emitter capable of rotating along a set axis, the mirror being located in a plane parallel to a spraying direction of a nozzle. The laser emitter is arranged on one side of the nozzle, and the rotating axis of the laser emitter is perpendicular to the spraying direction of the nozzle and is parallel to the plane where the reflector is located; the reflector and the laser emitter are respectively supported by a support.
Under the condition that the emission direction of the laser emitter is matched with the distance between the nozzle and the piece to be cleaned, the laser beam can be reflected by the reflector and then irradiates a cleaning point in the piece to be cleaned, wherein the cleaning point is right opposite to the nozzle.
A second aspect of the present disclosure provides a contactless positioning device for jet cleaning, comprising the steps of:
pre-positioning a piece to be cleaned by using a clamp;
measuring the distance between a nozzle jet orifice and the surface of the piece to be cleaned by using a laser range finder, and recording as a target distance; according to the target distance calculation, determining the emission direction of a laser emitter when the drop point of water flow on the surface of the piece to be cleaned is superposed with the drop point of a laser beam on the surface of the piece to be cleaned;
According to the laser emission direction of the laser emitter, the falling point of the laser beam on the surface of the piece to be cleaned is superposed with the water flow falling point;
adjusting the relative position of the to-be-cleaned part and the clamp to enable the laser beam to irradiate the dirt of the to-be-cleaned part;
and completely fixing the piece to be cleaned and the clamp.
The third aspect of the present disclosure provides a jet cleaning system, which includes the contactless positioning device for jet cleaning, and further includes a nozzle and a clamp, the nozzle is disposed opposite to the clamp, and the nozzle can spray water toward the clamp to impact a member to be cleaned.
The beneficial effects of one or more of the above technical solutions are as follows:
according to the positioning device, the combination of the laser emitter and the reflector is arranged on the basis of the original nozzle and the original clamp, so that the falling point of the jet flow can be represented by the falling point after the laser beam is reflected under the condition that water flow is not sprayed, the position of a piece to be cleaned is convenient to adjust in advance, and errors caused by naked eye observation and adjustment by an empirical method can be avoided; the time consumed by repeated adjustments is saved.
Adopt laser beam reflection's mode for laser emitter can keep away from the nozzle setting, avoids the influence that jet stream caused laser emitter.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a top view of the overall structure in example 3 of the present disclosure;
fig. 2 is a schematic view of the structure of the angle measuring device and the laser transmitter in embodiment 1 of the present disclosure;
fig. 3 is a schematic structural diagram of an angle measuring device in embodiment 1 of the present disclosure;
fig. 4 is a schematic structural diagram of a fixing mechanism in embodiment 1 of the present disclosure;
in the figure: 1. a reflective mirror; 2. a laser transmitter; 3. a fixing mechanism; 4. a nozzle; 5. a laser range finder; 6. cleaning the side wall of the tank; 7. a part to be cleaned; 8. a clamp; 9. an angle measuring instrument.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up, down, left and right" in this disclosure, if any, merely indicate correspondence with the up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.
Example 1
As shown in fig. 1 with a schematic view of a nozzle, a clamp and other parts removed, the embodiment provides a non-contact positioning device for jet cleaning, which comprises a reflector and a laser emitter capable of rotating along a set axis, wherein the plane of the reflector is parallel to the spraying direction of the nozzle. The laser emitter is arranged on one side of the nozzle, and the rotating axis of the laser emitter is perpendicular to the spraying direction of the nozzle and is parallel to the plane where the reflector is located; the reflector and the laser emitter are respectively supported by a support.
Under the condition that the emission direction of the laser emitter is matched with the distance between the nozzle and the piece to be cleaned, the laser beam can be reflected by the reflector and then irradiates a cleaning point in the piece to be cleaned, wherein the cleaning point is right opposite to the nozzle.
It is to be noted that the support here can be a side wall of a washing tank or a washing chamber; support plates or the like may also be employed, the support plates being supported by the floor or floor.
The length and position of the mirror are set as: the nozzle, the clamp, the piece to be cleaned and the orthographic projection of the laser beam are all positioned in the reflector.
The rotating axis of the laser emitter is located in a first reference surface, the first reference surface is perpendicular to the spraying direction of the nozzle, an angle measuring instrument is arranged at the laser emitter, and the angle measuring instrument can measure an included angle between the spraying direction of the laser emitter and the first reference surface.
Specifically, as shown in fig. 2, an angle measuring instrument is installed above a combination device of a laser transmitter and a fixing mechanism, the installation is to ensure that a rotation center point of the angle measuring instrument is overlapped with a rotation center point of the laser transmitter, one side of the angle measuring instrument is fixed, and the angle measuring instrument can be freely selected and fixed on a wall surface of a cleaning box or fixed on the fixing mechanism according to the sizes of the fixing mechanism and the angle measuring instrument; the other side of the angle measuring instrument is combined with the laser transmitter, the central line of the angle measuring instrument and the central line of the laser transmitter are in the same vertical plane, the rotating angle of the laser transmitter relative to the first reference plane is consistent with the rotating angle of the angle measuring instrument, and therefore different rotating angles can be accurately displayed on the angle measuring instrument in a digital mode.
The first reference surface is provided with a fixing mechanism, the fixing mechanism comprises a fixing part and a rotating part, the rotating part can rotate on the basis of the fixing part, and the fixing part is supported by a supporting piece; the rotating part can clamp and fix the laser emitter, and the rotating axis of the rotating part is coincident with that of the laser emitter.
In this embodiment, the mirror is vertically arranged, and the incident light and the reflected light in the mirror are in the same horizontal plane. The first reference surface is flush with one end of the nozzle, which is far away from the spraying direction, and one end of the reflector is flush with the first reference surface.
In other embodiments, the mirror may be perpendicular to the first reference surface and parallel to the ejection direction of the nozzle. The plane where the incident ray and the emergent ray of the laser beam are positioned is vertical to the mirror surface of the reflector. Therefore, the position of the reflector in the vertical space can be set by a person skilled in the art according to requirements.
In order to measure the distance between the nozzle jet orifice and the cleaning surface of the piece to be cleaned, the device further comprises a laser range finder, the laser range finder is installed on one side of the nozzle, a laser emitting point of the laser range finder and a jet emitting point are in the same vertical plane, a laser beam emitted by the laser range finder can be irradiated to the surface to be cleaned, so that the purpose of automatically measuring the distance between the nozzle jet orifice and the surface of the piece to be cleaned is achieved, and when the jet works, the sealing device can be used for carrying out waterproof protection on the jet orifice.
Specifically, as shown in fig. 1, in the present embodiment, the laser distance measuring instrument is fixedly installed at the outer surface of the nozzle, and in other embodiments, the position and the connection mode of the laser distance measuring instrument may be set by a person skilled in the art, as long as the distance measurement between the nozzle jet orifice and the surface of the member to be cleaned can be realized.
Example 2
The embodiment provides a contactless positioning method for jet cleaning, which utilizes the contactless positioning device for jet cleaning, and comprises the following steps:
pre-positioning a piece to be cleaned by using a clamp;
measuring the distance between a nozzle jet orifice and the surface of the piece to be cleaned by using a laser range finder, and recording as a target distance;
calculating an included angle value between the emission direction of the laser emitter and the first reference surface when the drop point of the water flow on the surface of the piece to be cleaned is superposed with the drop point of the laser beam on the surface of the piece to be cleaned according to the target distance;
adjusting the laser emission direction of the laser emitter according to the calculated included angle numerical value, so that the falling point of the laser beam on the surface of the piece to be cleaned is superposed with the water flow falling point;
adjusting the relative position of the to-be-cleaned part and the clamp to enable the laser beam to irradiate the dirt of the to-be-cleaned part;
and completely fixing the piece to be cleaned and the clamp.
It can be appreciated that in the present embodiment, because the angle between the firing angle of the laser emitter and the firing direction of the nozzle is not convenient to measure, the angle between the laser emitter and the first reference plane is measured to characterize the angle between the laser emitter and the firing direction of the nozzle, and the two angles are complementary angles. In actual use of the device, the following equation will be used:
wherein: l is the target distance;
alpha-the rotation angle of the laser emitter relative to the first reference plane;
l — horizontal distance from the first reference surface to the ejection port;
h is the vertical distance from the installation central point of the fixing mechanism to the reflector;
h-vertical distance from the jet center point to the reflector.
In the case of stationary cleaning equipment and devices, some of the parametric data in this formula is deterministic. For example: a horizontal distance l from the first reference surface to the ejection port; the vertical distance h from the installation central point of the fixing mechanism to the reflector; the nozzle projects a vertical distance H from the center point to the mirror. There are also parameters that need not be taken into account, such as the length and shape of the laser emitter and the thickness of the elongated reflector, and that do not affect the final calculation. In the above calculation formula, the target distance is a unique independent variable, different target distances correspond to different alpha values, the alpha value is determined, the angle of the laser emitter is adjusted, and the central position of the piece to be cleaned can be quickly determined through the device.
When the quality requirements of the surfaces of the workpieces cleaned by jet flow are different, different target distances are required to be selected for cleaning the workpieces, and the positions of the workpieces are required to be adjusted for cleaning the workpieces with different sizes under different target distances. Under the device and the calculation formula, the corresponding alpha value of a certain target distance can be calculated according to the formula, the laser emitter is adjusted to the corresponding alpha position according to the angle display on the angle measuring instrument, the falling point of the reflected light beam of the laser emitter on the piece to be cleaned is the central position of the piece to be cleaned during jet flow cleaning by utilizing the laser reflection principle, the position of the piece to be cleaned is adjusted, and the dirt part needing to be cleaned is overlapped with the laser projection as far as possible, so that the effective cleaning of the jet flow can be ensured to the maximum extent.
Example 3
As shown in fig. 1, the present embodiment provides a jet cleaning system, which includes the contactless positioning device for jet cleaning, and further includes a nozzle and a clamp, the nozzle is disposed opposite to the clamp, and the nozzle can spray water toward the clamp to impact a member to be cleaned.
In the embodiment, the cleaning device is entirely installed in a box body or a cleaning chamber; the following is described by taking a box as an example:
The nozzle, the fixing mechanism and the reflector are mounted on one side wall of the box body, and the plane where the side wall is located is a first reference plane (the first reference plane is also used as a first reference plane for mounting the laser emitter). The vertical plane on which the piece to be cleaned is mounted is the second reference plane.
It will be appreciated that the nozzle and fixture components need not be mounted at the side walls of the tank or chamber. For example, two vertical support plates are installed in the washing chamber, the support plates are supported by the ground, and the planes of the two support plates are respectively a first reference plane and a second reference plane.
It can be understood that when the spraying direction of the nozzle is horizontal, the first reference surface and the second reference surface are vertical planes, and when the spraying direction of the nozzle forms a certain included angle with the horizontal plane, the positions of the first reference surface and the second reference surface are changed along with the first reference surface and the second reference surface, so long as the reference surface is perpendicular to the spraying direction.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A non-contact positioning device for jet cleaning, comprising:
the plane where the reflector is located is parallel to the spraying direction of the nozzle;
the laser emitter can rotate along a set axis, the laser emitter is arranged on one side of the nozzle, the rotation axis of the laser emitter is perpendicular to the spraying direction of the nozzle and is parallel to the plane where the reflector is located, and the reflector and the laser emitter are supported through a supporting piece respectively;
under the condition that the emission direction of the laser emitter is matched with the distance between the nozzle and the piece to be cleaned, the laser beam can be reflected by the reflector and then irradiates a cleaning point in the piece to be cleaned, wherein the cleaning point is right opposite to the nozzle.
2. The non-contact positioning device for jet cleaning according to claim 1, characterized in that the reflector is arranged vertically, and the incident light and the reflected light in the reflector are in the same horizontal plane.
3. The non-contact positioning device for jet cleaning according to claim 1, wherein the length and position of the mirror are set to: the nozzle, the clamp, the piece to be cleaned and the orthographic projection of the laser beam are all positioned in the reflector.
4. The non-contact positioning device for jet cleaning according to claim 2, wherein the rotation axis of the laser emitter is in a first reference plane, the first reference plane is perpendicular to the jetting direction of the nozzle, and an angle measuring instrument is arranged at the laser emitter and can measure the included angle between the jetting direction of the laser emitter and the first reference plane.
5. The non-contact positioning device for jet cleaning according to claim 5, wherein a fixing mechanism is installed at the first reference surface, the fixing mechanism comprises a fixed part and a rotating part, the rotating part can rotate on the basis of the fixed part, and the fixed part is supported by a support;
the rotating part can clamp and fix the laser emitter, and the rotating axis of the rotating part is coincident with that of the laser emitter.
6. The non-contact positioning device for jet cleaning according to claim 4, characterized in that the first reference surface is flush with the end of the nozzle facing away from the spraying direction and the end of the mirror is flush with the first reference surface.
7. The non-contact positioning device for jet cleaning according to claim 1, further comprising a laser distance meter installed at one side of the nozzle, the laser distance meter emitting a laser beam capable of being irradiated to the surface to be cleaned to measure the distance between the nozzle jet orifice and the surface of the member to be cleaned.
8. A contactless positioning method for jet cleaning, using the contactless positioning device for jet cleaning of any one of claims 1 to 7, characterized by comprising the steps of:
Pre-positioning a piece to be cleaned by using a clamp;
measuring the distance between a nozzle jet orifice and the surface of the piece to be cleaned by using a laser range finder, and recording as a target distance; according to the target distance calculation, determining the emission direction of a laser emitter when the drop point of water flow on the surface of the piece to be cleaned is superposed with the drop point of a laser beam on the surface of the piece to be cleaned;
adjusting the laser emission direction of a laser emitter to enable the falling point of a laser beam on the surface of the piece to be cleaned to be superposed with the water flow falling point;
adjusting the relative position of the to-be-cleaned part and the clamp to enable the laser beam to irradiate the dirt of the to-be-cleaned part;
and completely fixing the piece to be cleaned and the clamp.
9. The method of claim 8, wherein the plane on which the nozzle is mounted is selected as a reference plane, and an angle between the reference plane and the laser emission direction is measured.
10. A jet cleaning system comprising the non-contact positioning device for jet cleaning as claimed in any one of claims 1 to 7, further comprising a nozzle and a clamp, the nozzle being disposed opposite the clamp, the nozzle being capable of spraying water in the direction of the clamp to impact a member to be cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010647821.XA CN111842287B (en) | 2020-07-07 | 2020-07-07 | Non-contact positioning device for jet cleaning, cleaning system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010647821.XA CN111842287B (en) | 2020-07-07 | 2020-07-07 | Non-contact positioning device for jet cleaning, cleaning system and method |
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| CN111842287A true CN111842287A (en) | 2020-10-30 |
| CN111842287B CN111842287B (en) | 2021-07-16 |
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