CN112643304A - Device and method for precisely assembling assembly elements - Google Patents
Device and method for precisely assembling assembly elements Download PDFInfo
- Publication number
- CN112643304A CN112643304A CN202011021245.4A CN202011021245A CN112643304A CN 112643304 A CN112643304 A CN 112643304A CN 202011021245 A CN202011021245 A CN 202011021245A CN 112643304 A CN112643304 A CN 112643304A
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- China
- Prior art keywords
- ejector
- ejection
- base body
- channel
- lateral channel
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
- H05K13/0408—Incorporating a pick-up tool
- H05K13/0409—Sucking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/06—Gripping heads and other end effectors with vacuum or magnetic holding means
- B25J15/0616—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum
- B25J15/065—Gripping heads and other end effectors with vacuum or magnetic holding means with vacuum provided with separating means for releasing the gripped object after suction
Abstract
The invention relates to an injection head (100) for a vacuum extractor (300) for assembling an assembly element (109) to an assembly profile, wherein the injection head (100) comprises a base body (101) and an ejector (103). The ejector (103) is arranged in the base body (101) in a manner such that it can be moved between an intake position and an ejection position, wherein the base body (101) has at least one flow channel (105) through which a pressure or vacuum can be applied to the ejector (103) in order to move the ejector (103) between the intake position and the ejection position. The invention also relates to a vacuum extractor and an assembly method.
Description
Technical Field
The invention relates to an injection head for a vacuum extractor, a vacuum extractor and an assembly method.
Background
Mounting elements, such as Light Emitting Diodes (LEDs), for mounting surfaces or mounting profiles have different physical properties as a result of the manufacturing process. Because of these different physical characteristics, the adhesion or cohesion of the individual mounting elements to the vacuum extractor for mounting may vary significantly. Accordingly, with mounting components that tend to be highly adhesive, problems can arise in ejecting the mounting component from the vacuum extractor.
It is known to apply a compressed air flow, which is guided through a corresponding vacuum extractor, to the mounting element in order to eject the mounting element from the vacuum extractor. The intensity of this compressed air flow cannot be chosen arbitrarily in order to avoid damaging the fitting elements already arranged on the fitting profile to be fitted, so that the vacuum extractor may form a bond with the fitting elements which tend to have a high degree of adhesion, thus interrupting the fitting process and increasing costs.
Disclosure of Invention
Against this background, it is an object of the present invention to provide an improved ejection head for a vacuum extractor, which ejection head does not have the above-mentioned disadvantages. In particular, the object of the invention is to provide a possibility of reliably ejecting the fitting element from the vacuum extractor, which in turn enables a tight fitting of the fitting profile with the fitting element.
The solution of the invention to achieve the above object is characterized by the features of the independent claims. Further features and details of the invention are disclosed in the dependent claims, the description and the drawings. In the present invention, the features and details described in connection with the spray head or the vacuum extractor are of course also applicable in connection with the assembly method according to the invention and vice versa, so that all references or can be made to each other in so far as the aspects of the invention are disclosed.
In a first aspect, the invention relates to an injector head for a vacuum extractor for fitting a fitting element to a fitting profile. The ejection head comprises a base body and an ejector, wherein the ejector is arranged in the base body in a movable manner between an intake position and an ejection position, and wherein the base body comprises a flow channel through which a medium flowing under pressure or vacuum can act on the ejector to move the ejector between the intake position and the ejection position.
In the context of the present invention, a base body is understood to be a housing or a container in which the ejector provided according to the invention is movably arranged.
In the context of the present invention, an ejector is understood to be an element, such as a piston (piston) or a cylinder (cylinder), which is arranged in the base body in such a way that it can be moved between an intake position and an ejection position.
The spray head of the invention is based on the following principle: a mechanical force or a mechanical impact is applied to the mounting element in order to disengage the mounting element from the edge of the spray head according to the invention and accordingly to place it on the mounting profile to be mounted. To this end, according to the invention, an injection head is provided which can be arranged on the vacuum extractor or integrated into the vacuum extractor as an integral component.
The ejection head according to the present invention includes a base body and an ejector. The ejector can be moved between its suction position and its ejection position depending on the pressure conditions present in the base body or the medium flowing through the base body. This means that the ejector is in or moved from its suction position to its ejection position when a vacuum is present on the ejection head. Accordingly, when a medium or positive pressure (i.e., overpressure) is applied to the ejection head, the ejector is in its ejection position or moved from its intake position to its ejection position.
When the ejector moves from its suction position to its ejection position due to its own weight and its acceleration, the ejector generates an ejection force or a mechanical impact that is transmitted to the fitting element disposed on the ejection head to overcome an adhesive force between the fitting element and the ejection head and detach the fitting element from the ejection head.
In order to move the ejector between its intake position and its ejection position, the ejection head according to the invention comprises a flow channel through which a medium, in particular compressed air, is conveyed to the ejector under positive pressure. Further, the flow channel is used to apply a negative pressure to the ejector by applying a vacuum to the flow channel.
The ejector may comprise a contact surface which is arranged to be impinged upon by a medium flowing through the ejection head, in particular a compressed air flow, and to transmit pressure from the medium to the ejector, therewith moving the ejector from its intake position to its ejection position.
In addition, the ejector can be subjected to a vacuum via its contact surface in order to press or move the ejector from its ejection position into its suction position at ambient pressure when a vacuum is present in the flow channel.
The ejector may comprise a contact area arranged to contact the corresponding fitting element at one end of the ejector. The contact area may be planar or have any other technically suitable shape. The contact region can be designed in particular as a function of the respective mounting element to be ejected. Furthermore, the contact area may be surrounded by a surface layer which minimizes the adhesion between the ejector and the corresponding fitting element.
The invention can provide that the ejector is arranged in the base body in such a way that, when the ejector is moved from the intake position into the ejection position, a mechanical impact is transmitted by its own weight to the mounting element arranged on the ejection head, which mechanical impact, together with a pneumatic impact transmitted to the mounting element by means of the medium to be guided through the base body, acts on the mounting element in order to eject it.
In order to transmit the greatest impact force to the respective mounting element, with the subsequent rapid and reliable ejection or detachment of the mounting element from the surface of the ejection head according to the invention, the ejector according to the invention can interact with the medium flowing through the ejection head, such as a compressed air flow. This means that the medium transmits pneumatic forces or pneumatic impacts, while the ejector transmits ejector impacts or mechanical impacts to the fitting element. Accordingly, the pneumatic impact and the ejector impact act together as an additional force. In particular, it is proposed here that the ejector impact and the pneumatic impact act simultaneously on the mounting element in order to exert a very strong force on the mounting element.
In addition to the mechanical impact from the ejector, the ejector may also have a central channel configured to convey the medium through the ejector to the outlet area of the ejection head and finally onto the respective fitting element in order to apply a pneumatic impact to the fitting element by the respective medium. The central channel may in particular be provided as a central bore in the ejector.
The invention may further provide that the ejector comprises a central channel which is connected to at least one lateral channel leading laterally into the ejector, such that a medium introduced into the ejector through the central channel exits the ejector via the at least one lateral channel.
The invention may further provide that the base body sealingly covers the respective opening of the at least one lateral channel when the ejector is in the suction position to minimize outflow of the medium from the respective opening of the at least one lateral channel, and that the base body comprises at least one flow space configured to release the respective opening of the at least one lateral channel and to allow outflow of the medium from the respective opening of the at least one lateral channel into the flow space when the ejector is in the ejection position.
In order to achieve the fastest possible movement of the ejector and at the same time to apply pneumatic and ejector impacts to the fitting element, the ejector may be mounted in a movable manner in the region of the base body, for example a flange (flight), wherein the flange only partially surrounds the ejector, while the passage of the ejector only partially runs through the ejector and is in communication with the surroundings of the ejector via a lateral channel. By this configuration, in which the medium flows only through the part of the ejector, it is achieved that the medium first hits the contact surface of the ejector, penetrates into the central channel of the ejector and presses the bottom of the central channel as the lateral channels of the ejector are closed by the flange, so that the ejector is moved away from its suction position. As a result of the movement of the ejector, the lateral channel of the ejector is displaced relative to the flange and turned into the flow region below the flange, so that the medium can flow through the lateral channel into the flow region below the flange. Accordingly, the medium flows through the flow region below the flange in the direction of the respective mounting element, while the ejector is likewise moved in the direction of the mounting element due to its own weight, its acceleration and the remaining contact with the medium, so that the mounting element is moved substantially simultaneously by the ejector impact being applied by the ejector and by the pneumatic impact being applied by the medium and is thus detached from the spray head.
The invention can also provide that the ejector comprises a sealing ring which is arranged between a contact region of the ejector for contacting the fitting element and a corresponding outlet of the at least one lateral channel of the ejector.
By means of the sealing rings arranged below the respective outlet or below the opening of the respective lateral channel and above the contact region of the ejector, the medium flowing through the ejector can be guided onto the sealing rings, so that the sealing rings and thus the ejector are moved along with the medium through the spray head, so that the contact region jointly strikes the respective fitting element with a pneumatic impact or a respective mass flow of the medium flowing below or to the side of the sealing rings.
The invention can also provide that the at least one lateral channel comprises a first lateral channel and a second lateral channel arranged opposite the first lateral channel, and that the first lateral channel and the second lateral channel guide a medium introduced into the ejector through the central channel onto the mounting element via a contact region of the ejector for contacting the mounting element.
By means of two oppositely arranged lateral channels, a certain medium or a medium passing through the spray head of the invention can be guided to selected areas of the respective fitting elements in order to minimize damage to the fitting elements already arranged on the respective fitting profile to be fitted due to wake.
The invention can also provide that the base body comprises a control flow channel for controlling the gas pressure prevailing in the base body, and that the ejector has a sealing element by means of which the control flow channel is opened when the ejector is in the suction position and closed when the ejector is in the ejection position.
By means of the control flow channel, the pressure conditions in the spray head can be set, wherein, for example, a targeted release of vacuum is achieved by means of the control flow channel, so that sticking of the respective component to the vacuum extractor is prevented. The ejector according to the invention can have a sealing element for sealing the control flow channel, since the control flow channel, when vented, leads to a pressure loss in the ejection head and correspondingly reduces the vacuum on the parts for ejecting the mounting element. The sealing element can be designed, for example, as a sealing ring or be provided by a corresponding shaping of the base body of the injection head according to the invention. The sealing element is designed such that it selectively releases the control channel only when the ejector is in its suction position, so that the vacuum present in the ejection head can be controlled or regulated.
The invention can also provide that the ejector is made in particular of a heavy metal, in order to additionally maximize the power impact transmitted by the ejector to the mounting element arranged on the ejection head, in particular when it is moved downward along the z-axis.
By means of an ejector made of metal or another dense or heavy material, the ejector impact transmitted by the ejector to the respective fitting element can be maximized or adjusted. To this end, the ejector may be made in whole or in part of a metal such as brass or tungsten.
In a second aspect, the invention relates to a vacuum extractor with a feasible design of the ejection head of the invention.
The inventive spray head is particularly intended for operating the inventive vacuum extractor, so that the advantages described in connection with the inventive spray head can be combined with the inventive vacuum extractor.
In a third aspect of the invention, the invention relates to an assembly method for assembling an assembly element to an assembly profile. The assembly method comprises the following steps:
pick-up, with the possible design of the vacuum extractor of the invention, of the assembly component with the vacuum provided;
the ejector head of the vacuum extractor is pressurized, an overpressure is applied to the ejector head to move the ejector of the ejector head from its intake position to its ejection position, and mechanical impact is applied to the mounting element by the movement of the ejector in addition to pneumatic impact caused by the overpressure.
The inventive assembly method is used in particular for operating the inventive vacuum extractor by using the inventive spray head, so that the advantages described in relation to the inventive spray head and the inventive vacuum extractor can be combined in relation to the inventive assembly method.
The invention may provide that a Light Emitting Diode (LED) is selected as the mounting element.
Drawings
Further developments of the invention are described below with reference to certain embodiments of the invention shown in the drawings. All the features and/or advantages derived from the claims, the description or the drawings, including structural details and spatial arrangements, are essential technical features of the invention, both individually and in various combinations.
Fig. 1 schematically shows a side cross-sectional view of a possible embodiment of the spray head according to the invention in the suction position.
Fig. 2 schematically shows a side cross-sectional view of the jetting head of fig. 1 in an ejection position.
Fig. 3 schematically shows a possible embodiment of a vacuum displacer according to the invention.
Fig. 4 schematically shows a possible embodiment of the assembly method according to the invention.
Description of reference numerals:
100 spray head
101 base body
103 liftout attachment
105 flow channel
107 contact area
109 mounting element
111 flow channel
113 control flow channel
115 flange
201 overlapping area
203 contact surface
205 central passage
207 lateral channel
209 lateral channel
211 sealing ring
300 vacuum extractor
301 pressure generator
303 flow body
400 assembling method
401 picking up step
403, an ejection step.
Detailed Description
Fig. 1 shows an ejection head 100. The ejection head 100 is used to operate a vacuum extractor and is arranged on the vacuum extractor to apply vacuum to the ejection head 100 by the vacuum extractor in a suction mode of the vacuum extractor to pick up the assembly component, and to pressurize the ejection head 100 by the vacuum extractor with a medium such as compressed air in an ejection mode to eject the assembly component, whereupon the assembly component is assembled to the assembly profile to be assembled.
The jetting head 100 includes a base 101 and an ejector 103. Within the base 101, the ejector 103 is movable between an intake position as shown in fig. 1 and an ejection position as shown in fig. 2.
In order to move the ejector 103, the pressure prevailing in the flow channel 105 of the substrate is changed. By applying a vacuum to the flow channel 105, the ejector 103 is pressed by ambient pressure into the suction position shown in fig. 1, in which the contact area 107 of the ejector 103 for contacting the fitting element 109 is spaced from the fitting element 109.
With ejector 103 in the suction position, the vacuum present at flow channel 105 can act on fitting element 109 via flow channel 111 and/or a corresponding bypass duct (not shown in the figures) at ejector 103 in order to suck fitting element 109.
In addition, with the ejector 103 in the suction position, the vacuum present at the ejection head 100 can be controlled via a control flow channel 113, by means of which a defined vacuum relief is carried out. Here, the control flow channel 113 is formed by a bore or flange 115 in the base body 101, which may be constructed as an integral component of the base body 101 or embedded in the base body 101.
When a medium such as compressed air is applied through the flow channel 105, the ejector 103 moves from the suction position shown in fig. 1 to the ejection position shown in fig. 2 due to the corresponding positive pressure and its own weight.
Fig. 2 shows the ejection head 100 according to fig. 1, with the ejector 103 in its ejection position. This means that the contact region 107 touches the mounting element 109 and presses it away from the ejection head 100, as indicated by the overlap region 201.
When ejector 103 moves from the intake position shown in fig. 1 to the ejection position shown in fig. 2, the ejector impinges on contact surface 203 with a medium such as compressed air, so that a positive pressure is built up on contact surface 203, causing ejector 103 to move in the direction of fitting element 109. In this case, the medium also enters the central channel 205 of the ejector 103 and is forced onto the bottom of the central channel 205 of the ejector 103 by the lateral channels 207 and 209 being closed by the flange 115, so that the ejector 103 is pressurized in addition to the pressure on the contact surface 203.
Once ejector 103 reaches the ejection position, sealing element 208, formed by the shape of ejector 103, closes control flow channel 113 so that all of the medium flowing through flow channel 105 flows into central channel 205 of ejector 103.
When the ejector 103 is in the ejection position, the lateral channels 207 and 209 are released, i.e. no longer closed by the flange 115, so that the medium flowing from the flow channel 105 into the central channel 205 flows out of the ejector 103 through the lateral channels 207 and 209 in the direction of the mounting element 109. In this case, the medium can be guided to a predetermined position on the fitting element 109 by means of an optional sealing ring 211 arranged at a distance from the base body 101.
Furthermore, by means of the sealing ring 211, an additional contact surface can be provided for the medium flowing through the injection head 100, which additional contact surface can optionally be used to further accelerate or pressurize the ejector 103 on its way in the direction of the mounting element 109 and to maximize the mechanical impact transmitted by the ejector 103 to the mounting element.
Accordingly, the fitting element 109 is pneumatically impacted by the medium flowing through the packing 211 and mechanically impacted by the ejector 103, so that the fitting element 109 is ejected or separated from the ejection head 100.
Fig. 3 shows a possible embodiment of the vacuum extractor 300 of the present invention. The vacuum extractor 300 includes a pressure generator 301 that may be used to generate a positive pressure, such as by compressed air or to provide a vacuum.
The pressure generator 301 is connected to a flow body 303, as shown in fig. 1 and 2, on which the ejection head 100 is arranged.
Fig. 4 shows a possible embodiment of the assembly method 400 of the invention.
In a pick-up step 401, the mounted component is picked up by means of a vacuum remover while applying a vacuum to the ejection head of the vacuum remover.
In the ejection step 403, positive pressure is applied to the ejection head of the vacuum extractor to move the ejector of the ejection head from its suction position to its ejection position, and mechanical impact is applied to the fitting element by the movement of the ejector in addition to pneumatic impact caused by the medium that supplies pressure.
Claims (10)
1. An injector head (100) for a vacuum extractor (300) for assembling a fitting element (109) to a fitting profile, wherein the injector head (100) comprises:
-a base body (101);
-an ejector (103),
wherein the ejector (103) is arranged in the base body (101) in a manner movable between an intake position and an ejection position, and
wherein the base body (101) has at least one flow channel (105) through which a pressure or vacuum can be applied to the ejector (103) in order to move the ejector (103) between the intake position and the ejection position.
2. The injector head (100) of claim 1,
it is characterized in that the preparation method is characterized in that,
the ejector (103) is arranged in the base body (101) in such a way that, when the ejector is moved from the intake position into the ejection position, mechanical impacts, which act together with pneumatic impacts, which are transmitted to the mounting element (109) by means of a medium to be guided through the base body (101), are transmitted by its own weight to the mounting element (109) arranged on the ejection head (100), said mechanical impacts acting on the mounting element (109) in order to eject the mounting element (109).
3. The injector head (100) of claim 1,
it is characterized in that the preparation method is characterized in that,
the base body (101) comprises a control flow channel (113) for controlling the pressure prevailing in the base body (101), and
the ejector (103) has a sealing element by means of which the control flow channel (113) is open when the ejector (103) is in the intake position and is closed when the ejector (103) is in the ejection position.
4. The injector head (100) of claim 1,
it is characterized in that the preparation method is characterized in that,
the ejector (103) comprises a central channel (205) which is connected to at least one lateral channel (207, 209) leading laterally into the ejector (103) in such a way that a medium guided into the ejector (103) through the central channel (205) flows into the at least one lateral channel (207, 209).
5. The injector head (100) of claim 4,
it is characterized in that the preparation method is characterized in that,
the at least one lateral channel (207, 209) comprises a first lateral channel (207) and a second lateral channel (209) arranged opposite the first lateral channel (207), and the first lateral channel (207) and the second lateral channel (209) are configured to guide a medium introduced into the ejector (103) through the central channel (205) onto the fitting element (109) through a contact region (107) of the ejector (103) for contacting the fitting element (109).
6. The injector head (100) of claim 4,
it is characterized in that the preparation method is characterized in that,
the base body (101) sealingly covers the respective opening of the at least one lateral channel (207, 209) when the ejector (103) is in the suction position, in order to minimize the outflow of medium from the respective opening of the at least one lateral channel (207, 209), and
the base body (101) comprises at least one flow space configured to release a respective opening of the at least one lateral channel (207, 209) and to allow a medium to flow out of the respective opening of the at least one lateral channel (207, 209) into the flow space when the ejector (103) is in the ejection position.
7. The injector head (100) of claim 4,
it is characterized in that the preparation method is characterized in that,
the ejector (103) comprises a sealing ring (211) arranged between a contact area (107) of the ejector (103) for contacting a fitting element (109) and a respective outlet of at least one lateral channel (207, 209) of the ejector (103).
8. The injector head (100) of claim 1,
it is characterized in that the preparation method is characterized in that,
the ejector (103) comprises metal to maximize the impact that the ejector (103) transmits to a fitting element (109) arranged at the ejection head.
9. A vacuum extractor (300) having an ejection head according to any of claims 1 to 8.
10. An assembly method (400) for assembling an assembly element (109) to an assembly profile,
wherein the assembly method (400) comprises the steps of:
-picking up (401) the fitting element (109) by means of the vacuum remover (300) according to claim 9, in the event of a vacuum being applied to the ejection head (100) of the vacuum remover (300);
-a pressure application (403) for applying an overpressure to the ejection head (100) of the vacuum extractor (300) to move the ejector (103) of the ejection head (100) from its intake position to its ejection position and to apply a mechanical impact to the fitting element (109) by the movement of the ejector (103) to eject it.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019127292.0A DE102019127292B4 (en) | 2019-10-10 | 2019-10-10 | Device and method for precise assembly with assembly elements |
| DE102019127292.0 | 2019-10-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112643304A true CN112643304A (en) | 2021-04-13 |
| CN112643304B CN112643304B (en) | 2023-06-27 |
Family
ID=75155571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011021245.4A Active CN112643304B (en) | 2019-10-10 | 2020-09-25 | Device and method for precisely assembling assembly elements |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112643304B (en) |
| DE (1) | DE102019127292B4 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102019127292B4 (en) | 2023-01-19 |
| DE102019127292A1 (en) | 2021-04-15 |
| CN112643304B (en) | 2023-06-27 |
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