EP3959161A1 - Transportvorrichtung und verfahren zur positionsüberwachung - Google Patents
Transportvorrichtung und verfahren zur positionsüberwachungInfo
- Publication number
- EP3959161A1 EP3959161A1 EP20722516.0A EP20722516A EP3959161A1 EP 3959161 A1 EP3959161 A1 EP 3959161A1 EP 20722516 A EP20722516 A EP 20722516A EP 3959161 A1 EP3959161 A1 EP 3959161A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transport device
- workpiece
- marking
- determining
- reference point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims description 56
- 238000012544 monitoring process Methods 0.000 title description 7
- 239000002023 wood Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000003754 machining Methods 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 17
- 239000000523 sample Substances 0.000 description 5
- 239000003086 colorant Substances 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 208000036829 Device dislocation Diseases 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/248—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves using special electromagnetic means or methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
- B23Q7/16—Loading work on to conveyors; Arranging work on conveyors, e.g. varying spacing between individual workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G17/00—Conveyors having an endless traction element, e.g. a chain, transmitting movement to a continuous or substantially-continuous load-carrying surface or to a series of individual load-carriers; Endless-chain conveyors in which the chains form the load-carrying surface
- B65G17/30—Details; Auxiliary devices
- B65G17/38—Chains or like traction elements; Connections between traction elements and load-carriers
- B65G17/40—Chains acting as load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0233—Position of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
- B65G2203/044—Optical
Definitions
- the present invention relates to an apparatus for
- the workpieces preferably at least partially consisting of wood, wood-based materials, plastic or the like.
- Processing devices can be processed.
- rolling and sliding chains are used here, whereby the workpiece is transported clamped between the chain and a belt.
- Transport devices consists in monitoring the position of the workpieces. For editing in one
- the flexibility of the transport device with respect to changing workpiece geometries is low, the costs for servicing, maintenance and cleaning of such probe elements are high and surfaces, in particular highly sensitive surfaces, can be damaged by the mechanical contact of the workpiece.
- the position in the feed direction is calculated by a rotary encoder and a position switch.
- present invention is to provide an inexpensive system with which the position of an individual chain link in the transport device along the
- the direction of transport can be determined exactly.
- the object of the present invention is to determine the position of a workpiece through the precise
- This task is performed by a transport device
- Claim 1 and by a method for determining a
- the present invention makes it possible to enable a faster advance with constant quality, which leads to more efficient utilization of the
- Transporting workpieces according to a first aspect of the invention which are preferably at least partly made of wood,
- Consist of wood-based materials, plastic or the like comprises at least one transport device that so
- the transport device is constructed so that it can move along a first direction, wherein the transport device has a marking which is a pattern along the first direction
- the attachment of the marking to the transport device enables one to be identified
- the marking on a transport device enables the transport device to be subdivided along a first direction into an area of the transport device that lies in front of the marking in the first direction, into an area that is in the first direction is at the level of the marking and an area that lies behind the marking in the first direction.
- the pattern of the marking makes it possible to subdivide the marking in the first direction and thus to finely subdivide the area described above at the level of the marking.
- This patterned marking is that the position of the respective transport device can be detected very precisely as it passes through in the first direction, which may require knowledge of the position of the marking on the transport unit and knowledge of the pattern on the marking.
- Such a marking can not only be used to determine the position along the marking, but also - similar to a barcode - for the unique identification of a
- the transport device can preferably pick up and transport a workpiece.
- the marking of the transport device is preferably an optical marking, a metallic marking, an inductive marking or a magnetic marking.
- An advantage of such an optical marking over a conceivable non-optical marking, for example a magnetic marking or a marking by attaching probe elements, is that an optical
- Marking can be detected by an optical sensor such as a camera or a laser transmitter / receiver device.
- a metallic, inductive or magnetic marking in turn has the advantage that no optical elements such as
- Non-optical markings are particularly useful in the field of wood and plastic processing, since wood and plastic shavings regularly have a negligible influence on inductive or magnetic properties and therefore - especially in comparison to optical marking - also operation with a dirty space between Sensor and marking is possible.
- the pattern of the transport device can preferably be an incremental pattern, particularly preferably one
- more than two colors can also be provided, for example black, white and red.
- Conceivable alternatives to this preferred configuration are configurations in which the pattern is non-incremental, such as, for example, an area patterned by printed letters.
- the incremental pattern can be a pattern in which black and white areas alternate along the first direction in such a way that a white area is followed by a black area, a further white area follows the black area and another white area follows the further white area black area follows and so on.
- the result is a pattern that is similar to a barcode.
- the number of white and black areas isn't particularly limited, but it's obvious with that a finer position determination is possible with increasing number of increments.
- the length of the increments along the first direction and in particular the white and black areas is not restricted, so there may be white areas that are longer in the first direction than other white areas and black areas that are longer in the first
- Direction are longer than other black areas. This has the advantage that if the sequence of the increments and in particular the different lengths of the areas are known, the position of the transport device can be determined based on a section of the incremental pattern.
- An incremental scale offers the advantage that if the position of the marking on the transport element is known in the
- the marking of the transport device is preferred on a lateral surface of the transport device
- this preferred embodiment offers the advantage that to transporting workpieces are regularly transported on the top or on the bottom of a transport device and thus the marking is covered by the
- this preferred attachment on the side offers simple assembly and the possibility of cleaning in the flow without interrupting operation, for example by means of a stationary brush attached to the side.
- the transport device preferably has at least one transport device which has no marking.
- this embodiment offers the possibility of only providing a subset of the transport devices with patterns and nevertheless the position of the transport devices
- a transport device preferably has several
- Transport devices on wherein the transport devices are connected to one another and in particular are connected to one another in a ring.
- This configuration offers a
- An embodiment in which there are several transport devices that are not connected to one another has the advantage that, firstly, the distance between the transport units is determined by the connection of the transport units, and secondly by an annular connection
- a transport device preferably has a
- the transport device being set up in particular so that it moves along the first direction relative to the
- the transport device is not set up with a sensor device, such as
- Transport device that moves relative to the sensor device enables a stationary or stationary one
- a method according to the invention for determining a position of a transport device along a first direction comprises reading a region of the marking of a transport device according to the invention
- This method has the advantage that, based on the comparison of processed information from the
- Reading is obtained, for example a counting step of an increment of an incremental scale, and knowledge of the length along the first direction of an increment as well the knowledge of a position of the transport device before the counting step, a current position of the transport device can be precisely determined.
- the information from the reading can be, for example, information about a section of the pattern and the stored information can be information about the entire structure (and the sequence of the sections) of the pattern.
- the determining step includes a step in which the read information with the
- the stored information of the method preferably includes information about the pattern of the marking.
- the advantage of stored information about the pattern of the marking is that the position of the transport unit is determined exclusively based on a detected section of the marking can.
- the storing step preferably comprises storing the processed information.
- a storage step that does not include storing the processed information such as, for example, a storage step that exclusively includes a time stamp
- Storing the processed information includes the Possibility of determining the distance covered since the last step in a subsequent processing step.
- the stored information of the method preferably includes information about the position of a
- the stored information of the method does not include any information about the position of a transport device before the marking of the transport device is read
- this embodiment offers the advantage that the movement of a transport device can be determined between two reading times.
- a current position is preferably determined in relation to a fixed reference point.
- this embodiment allows the movement of the transport device to be determined.
- Transport device a step of determining a distance between a reference point of a marking of a transport device and a reference point of a workpiece.
- This method offers the advantage that, based on the determination of a position of a marking on a
- the position of the workpiece can be determined, which enables precise machining or processing of the workpiece.
- the distance in the first direction is preferably measured.
- Complete workpiece in the first direction forwards and backwards, can be precisely determined, which is particularly advantageous if these areas are to be machined.
- the reference point of the marking is preferably positioned at a front end of the marking in the first direction.
- this embodiment offers the advantage that the position can be determined while the marking is moving.
- the reference point of the workpiece is preferably positioned at a front end of the workpiece in the first direction.
- the method for determining the position of the workpiece preferably comprises a step of determining the position of the reference point of the workpiece relative to a reference point of the
- Transport device is arranged without the relative
- this embodiment offers the advantage that the position of the areas of the workpiece to be processed can be determined precisely in the run.
- the transport device in the method for determining the position of a workpiece is preferably a
- Transport device for transporting workpieces which preferably consist at least in part of wood, wood-based materials, plastic or the like, and comprises at least one transport device that is constructed so that it can move along a first direction, the transport device having a marking that has a pattern along the first direction.
- This refinement offers an alternative in which the method can determine the position without a
- Transport element can be carried out based on the marking and the pattern, which enables a highly accurate position determination.
- Determining a position of a transport device along a first direction comprising the following steps: a reading of an area of the marking of a
- This configuration offers the possibility of precisely determining the position of the workpiece in the run.
- This method offers the possibility of machining the workpiece in a continuous process.
- Transport device moved relative to the tool.
- this embodiment offers the possibility of setting up an assembly-line-like operation.
- a relative position of the workpiece to the tool is preferably determined using a method for determining the position of a workpiece in a transport device.
- This method offers the possibility of precisely determining the position of the workpiece in the run and the
- the transport device is identified by reading the marking, with at least one of the markings differing from at least one other marking.
- Transport elements are identified.
- Feed rate based on information obtained from reading at least one of the marks.
- FIG. 1 shows an overview of a
- Transport device for a workpiece according to a
- FIG. 2 shows a perspective illustration of a
- FIG. 3A is an illustration of an exemplary
- FIG. 3B is an illustration of an exemplary
- FIG. 3C is an illustration of a further exemplary incremental scale according to a further exemplary embodiment of a transport device according to FIG.
- FIG. 3D is an illustration of an alternative
- Embodiment of an incremental pattern or scale Embodiment of an incremental pattern or scale.
- FIG. 4 shows a flow diagram of a method for determining a position device along the first direction according to an exemplary embodiment of the present invention.
- FIG. 1 shows an overview of a
- Transport device 100 for a workpiece according to an exemplary embodiment of the present invention.
- FIG. 1 shows an overview of a
- Transport device 100 for a workpiece 102 according to an exemplary embodiment of the present invention.
- the transport device 100 according to the present invention
- Transport devices 104 which are located along the first, shown in FIG. 1 shown by an arrow, can move direction.
- the transport devices 104 are shown in FIG. 1 illustrated exemplary embodiment designed so that they are annularly connected to one another and a
- Transport devices 104 can be rigid or flexible
- Transport devices 104 are when operating the
- the transport devices 104 can be driven by a drive 108.
- Devices for driving such Transport devices are known to those skilled in the art, so a detailed description of the drive and the
- the transport devices 104 can in the form shown in FIG. 1 to pick up a workpiece 102 in the exemplary embodiment illustrated in the exemplary embodiment illustrated
- Embodiment is the workpiece 102 of several
- Transport devices 104 received and transported, however, it is obvious that the workpiece 102 can also be received by a single transport device 104, in particular it can be seen that a
- Transport device 100 can be configured such that, depending on the size of the workpieces 102 to be processed, it can both accommodate and transport one or more workpieces 102 on a transport device 104
- a marking 110 is attached to the side of some of the transport elements 104. It should be noted that in the embodiment shown, a marking 110 is not attached to each transport device 104, but an embodiment in which a marking 110 is attached to each transport device 104 is also possible.
- the marking 110 has a pattern 112.
- Embodiment the transport device 100 exactly
- Workpiece 102 shows, in particular, however
- Transport device 100 several workpieces 102 can be transported and / or processed simultaneously.
- the in FIG. 1 further includes a
- Mark 110 can be read while the transport device 100 is in operation, that is, while the
- Transport devices 102 move past her. It should be noted that the sensor device 114 is arranged such that the workpiece can move past it undisturbed when the transport device 100 is in operation. In the exemplary embodiment shown, the sensor device 114 is arranged below the trajectory of the lowermost edge of the workpiece 102, so that the workpiece can be transported past it unhindered.
- the transport device 100 further includes several
- Support devices 116 one of which is shown by way of example in FIG. 1, which guide the transport devices 104. Furthermore, on the transport device 100 in FIG. 1,
- FIG. 1 one
- Machining device 118 represents an example of which the workpieces 102 are guided past by the transport devices 104 and by which they can be machined while the transport device 100 is in operation.
- the sensor device 114 can in particular be positioned exactly at the point at which the exact position of the workpiece 102 is required, for example in the immediate vicinity of the processing device 118 or at the level of the
- FIG. 1 also shows a reference point 120 on workpiece 102, which designates the front edge of the workpiece in the first direction and on the basis of which the position of the to be processed by the processing device 118
- the transport device 100 also has a board transmitter (position switch) 122 which emits a signal on mechanical contact between a workpiece and a movable component on the upper side.
- a board transmitter (position switch) 122 which emits a signal on mechanical contact between a workpiece and a movable component on the upper side.
- a distance A1 denotes a distance measured in the first direction between the reference point 120 des
- each marking 110 and each workpiece 102 have a reference point which is each located at its foremost end in the first direction.
- reference points 120, 124 are shown.
- Marking 110 and a reference point 120 of a workpiece 102 can be determined, for example, by comparing a measurement signal from a sensor device 114, at which the sensor device 114 registers that a front end of a marking 110 is moving past it, with a signal from the position switch 122 that is dispensed when the front end of a workpiece 102 moves past it and actuates the movable component on the top.
- the distance A1 represents the distance between a reference point 120 of a workpiece 102 and a reference point 124 of an adjacent marking 110
- distances between not directly adjacent reference points can also be determined, in particular also those in which the workpiece is further forward in the first direction as the mark to which the distance is measured.
- the distances along the first direction to reference points 124 of several markings 110 are determined and stored in a further, not shown,
- Embodiment all permutations of distances between reference points 120 on workpieces 102 and
- Reference points 124 at markings 110 both along the first direction and against the first direction are determined and stored.
- a second distance A2 denotes the distance between a reference point (not shown) of the sensor device 114 and a reference point (not shown) of the
- the reference points are basically freely selectable and methods for converting distances in different reference systems are known to the person skilled in the art, the reference points are expediently in the exemplary embodiment the position of the measuring system in the first direction, at the height of which the sensor is located and the position of the machining device in the first direction, at the height of which the tool is located.
- FIG. 2 shows a perspective illustration of a
- Transport device 104 according to an exemplary
- Embodiment of the present invention which is movable in the first direction and has a marking 110 attached to its lateral surface, the marking having a pattern 112 along the first direction. Exemplary embodiments and configurations of the pattern 112 are described below with reference to FIG. 3A to 3D.
- FIG. 2 a workpiece 102, which is on a
- Transport device 104 is arranged as well as the reference point 120 on a front area of the workpiece 102 in a first direction and the reference point 124 on a front area of the marking 110 in a first direction. Furthermore, FIG. 2 represents the distance A1 between the reference points 120 and 124.
- FIG. 3A, 3B, 3C, 3D show various exemplary
- Embodiments of the pattern 112 according to the present invention Embodiments of the pattern 112 according to the present invention.
- FIG. 3A is an illustration of an exemplary
- Embodiment of the present invention wherein the pattern 112 is an example of an incremental pattern 301.
- An incremental pattern 301 has different ones
- first areas 302 and second areas 304 alternating first areas 302 and second areas 304.
- the first areas are shown in black and the second areas are shown in white, but it should be noted that this representation is only for illustration purposes, for example the first and second areas can be black and white, red and green, matt and be reflective or lighter and darker.
- the incremental pattern is not an optical pattern, the areas
- Magnetization are oriented in opposite directions or
- Emit signals for example a logical 1 and a logical 0.
- Pattern 301 in the exemplary embodiment alternate between black 302 and white 304 areas, wherein the lengths of the areas are not particularly limited, in particular areas with a length in the first direction that differ from other areas may be present.
- the black areas 302 can have a first length LI and a fourth length L4 and the white areas can have a second length L2, a third length L3 and a fifth length L5. The one shown in FIG.
- 3A of an incremental pattern 301 shown is designed so that a Sensor device (not shown) that detects an area B1 of the incremental pattern 301 based on the sequence of black areas 302 and white areas 304 detected in area Bl in combination with the lengths of the areas in the first direction by comparison with one in FIG Information stored in the sensor device about the incremental pattern determines which area of the incremental pattern lies in the area B1.
- Embodiment information can be stored which indicates a distance between a reference point 124 of the marking (not shown in FIGS. 3A-3D) and a point in the detected partial area B1.
- FIG. Incremental pattern shown in FIG. 3A is designed in such a way that it does not have two partial areas of size B1 that are identical.
- FIG. 3A therefore offers the possibility of determining a position of a marking in relation to a position of a sensor unit based on a detection of a partial area of the marking.
- FIG. 3B is an illustration of an exemplary
- FIG. 3C is an illustration of another exemplary incremental ruler 330 in accordance with another exemplary embodiment of a
- all black areas 322 have the length L102 in the first direction and / or all white areas 324 have the length L104 in the first direction.
- a special case in which the length L102 of the black areas 322 in the first direction is equal to the length L104 of the white areas 324 in the first direction is shown in FIG. 3C shown.
- Embodiment of an incremental scale the position of a reference point of the marking relative to a reference point of the sensor device can be determined by a sensor device (not shown).
- a sensor device not shown.
- the sensor device can detect the beginning of the marking, for example by detecting a first black area 322.
- the incremental scale is an optical incremental scale
- the sensor device can be an optical sensor device, for example a camera or a laser transmitter / receiver device.
- the incremental scale for example a camera or a laser transmitter / receiver device.
- the senor device can be a magnetic reader.
- the resolving power of the position determination increases with the decreased length of the black areas 322 and the white areas 324 in the first direction. Based on this, the distance in the first direction between the sensor device and the reference point of the marking can be calculated. Based on this and based on the knowledge of the distance A1 between reference point 120 on workpiece 102 and reference point 124 on marking 110 in the first direction and on knowledge of distance A2 between a reference point on sensor device 114 and a reference point on the
- Machining device 118 in the first direction can thus determine the relative position of a reference point on the
- Workpiece 102 can be determined.
- FIG. 3D is an illustration of an exemplary
- black areas 341 and white areas are conceivable here.
- FIG. 4 shows a flow chart of a method for
- a marking is a
- the reading can for example comprise an optical reading of an incremental pattern or an incremental scale.
- a second step S2 the information obtained from the reading is processed, for example image data from an optical sensor unit are processed and processed so that optical structures can be recognized or magnetic field changes of a magnetic marking are converted into electronic data.
- a comparison is carried out in a third step S3.
- an incremental pattern as shown in FIG. 3A
- this comparison can be a comparison of the
- the comparison can be, for example, a comparison of processed information with information about which structure the incremental areas must have in order to be counted as an incremental step.
- a fourth step S4 is based on the
- Position determination include, for example, a determination of a recorded area of the pattern, which is based on a determination of the distance of a point of the recorded
- Sensor device 114 in the first direction Based on the distance between reference point 124 and sensor device 114 in the first direction and on the known distance between reference point 120 on workpiece 102 in the first direction and reference point 124 on marking 110 and on the known distance between a reference point of Sensor unit 114 and a reference point of
- Position determination may include, for example, a determination of a number of passed increments (that is to say for example black 322 or white 324 areas in FIG. 3B or 3C). Knowing the length of the incremental areas in the first direction (e.g. the length L102 of the black areas 322 in the first direction and the length L104 of the white areas 324 along the first direction in FIG. 3B or 3C), knowing the number of
- traversed areas 322, 324 determine the position of the marking 110 along the first direction and thus the distance between the reference point 124 of the marking 110 and a reference point of the sensor device 114 in the first direction. Based on the distance between reference point 120 and sensor device 114 in the first direction and on the known distance between reference point 120 on workpiece 102 and reference point 124 on the marking in the first direction and on the known distance between one
- the reference point of the sensor device 114 and a reference point of the machining device 118 in the first direction can now be the position of the reference point of the workpiece 102
- Position determination step determined position as
- Information can be provided, for example it can be transmitted to a control unit, not shown, which controls the processing device 118 based on the transmitted information.
- Transport device 104 can serve, for example, as a basis for the comparison in step S3, so that based on the comparison of the change in a current position, a current position based on a fixed reference point can be determined.
- a method for determining the position of a workpiece 102 in a transport device 100 can be based on FIG. 2 can be illustrated.
- the distance between a reference point 124 becomes a
- Reference point 120 of a workpiece 102 measured along a first direction, the reference point 124 of the marking 110 at a front end in the first direction
- Marking 110 is positioned and the reference point 120 of the workpiece 102 is positioned at a front end of the workpiece 102 in the first direction.
- Embodiment comprises a step of determining the position of the reference point 120 of the workpiece 102 to a reference point of the transport device 100, wherein the
- the reference point of the transport device 100 is, for example, the sensor device 114. According to the exemplary
- the method may include determining the position of the reference point 124 of the marker 110 relative to the
- Embodiment include.
- the workpiece can be on a
- Transport device can be processed in a processing device 118 with a tool.
- the workpiece can be milled, sawed or chamfered.
- the workpiece 102 can be moved relative to the tool in the machining device 118.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Control Of Conveyors (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Attitude Control For Articles On Conveyors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019110568.4A DE102019110568A1 (de) | 2019-04-24 | 2019-04-24 | Transportvorrichtung und Verfahren zur Positionsüberwachung |
| PCT/EP2020/061307 WO2020216827A1 (de) | 2019-04-24 | 2020-04-23 | Transportvorrichtung und verfahren zur positionsüberwachung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3959161A1 true EP3959161A1 (de) | 2022-03-02 |
Family
ID=70476191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20722516.0A Withdrawn EP3959161A1 (de) | 2019-04-24 | 2020-04-23 | Transportvorrichtung und verfahren zur positionsüberwachung |
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|---|---|
| US (1) | US20220306397A1 (de) |
| EP (1) | EP3959161A1 (de) |
| CN (1) | CN114096476A (de) |
| DE (1) | DE102019110568A1 (de) |
| WO (1) | WO2020216827A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023135232A1 (de) * | 2023-12-14 | 2025-06-18 | Audi Aktiengesellschaft | Anordnung und Verfahren zur automatischen Synchronisierung mit einer Förderanlage |
| CN119750153B (zh) * | 2024-12-26 | 2025-07-15 | 保特罗玻璃工业(佛山)有限公司 | 一种基于plc的工件检测方法及系统 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3601523C1 (de) * | 1986-01-20 | 1987-07-16 | Manfred Richter | Verfahren zur Positionierung und Vermessung von Werkstuecken auf Bearbeitungsstrassen |
| CN1059172C (zh) * | 1995-11-27 | 2000-12-06 | 里特机械公司 | 使一台装置可重复地相对于多个工作站定位的方法及设备 |
| GB0720972D0 (en) * | 2007-10-25 | 2007-12-05 | Renishaw Plc | Magnetic encoder |
| DE102009004967B4 (de) * | 2009-01-14 | 2010-12-02 | Schwartz, Eva | Verfahren und Vorrichtung zur Ausrichtung von erwärmten Werkstücken |
| TWI407376B (zh) * | 2009-02-13 | 2013-09-01 | Ind Tech Res Inst | 無線射頻識別標籤檢測方法與系統 |
| ITMI20110562A1 (it) * | 2011-04-06 | 2012-10-07 | Comelz Spa | Procedimento e dispositivo di rilevamento di posizione di un organo trasportatore. |
| EP2533018B1 (de) * | 2011-06-10 | 2014-05-07 | Schneeberger Holding AG | Lineares Wegmesssystem |
| EP3085653B1 (de) * | 2015-04-24 | 2019-04-10 | KONE Corporation | Aufzug |
| CN105775664A (zh) * | 2016-04-12 | 2016-07-20 | 中交航局安装工程有限公司 | 一种基于射频识别的带式输送机速度检测系统 |
| DE102016213400A1 (de) * | 2016-07-21 | 2018-01-25 | Krones Aktiengesellschaft | Vorrichtung und Verfahren zum Umgang mit bewegten Stückgütern, Förder-, Verarbeitungs- und/oder Verpackungsanlage mit einer Vorrichtung zum Umgang mit bewegten Stückgütern |
| CN106391492B (zh) * | 2016-08-30 | 2019-01-15 | 丁煦 | 物体自动分拣装置及其控制方法 |
| DE102017104998A1 (de) * | 2017-03-09 | 2018-09-13 | Weber Maschinenbau Gmbh Breidenbach | Fördereinrichtung und Verfahren zur Ermittlung der Oberflächengeschwindigkeit einer Transportoberfläche |
| DE102017123630C5 (de) * | 2017-10-11 | 2023-03-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | System und Verfahren zum Transport von Transportgütern in einer Montagelinie |
-
2019
- 2019-04-24 DE DE102019110568.4A patent/DE102019110568A1/de not_active Withdrawn
-
2020
- 2020-04-23 EP EP20722516.0A patent/EP3959161A1/de not_active Withdrawn
- 2020-04-23 US US17/605,551 patent/US20220306397A1/en not_active Abandoned
- 2020-04-23 WO PCT/EP2020/061307 patent/WO2020216827A1/de not_active Ceased
- 2020-04-23 CN CN202080046283.7A patent/CN114096476A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019110568A1 (de) | 2020-10-29 |
| US20220306397A1 (en) | 2022-09-29 |
| WO2020216827A9 (de) | 2020-12-24 |
| WO2020216827A1 (de) | 2020-10-29 |
| CN114096476A (zh) | 2022-02-25 |
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