JPS59205260A - Method and device for discriminating work in manufacturing facility - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides jog-feeding of a workpiece holder along a conveyance path, and eliminates imperfections when placing or feeding a part onto the workpiece holder or machining it at each station. During assembly or machining, a defect signal is assigned to the workpiece holder that receives the workpiece, so that the workpiece is not machined in subsequent operations or machining stations, or is placed at the point where defective products are discharged or in post-processing. The present invention relates to a method and a device for coding workpiece holders in production installations for supplying workpieces to discharge points, in particular for the assembly of multi-component workpieces.

Various coding devices are already known for coding workpiece holders in prior art manufacturing installations. Coding devices of this type consist of multiple signal carriers, for example pivotable or adjustable pins or the like, which are arranged on the workpiece holder.

In this case, this signal carrier is only used to identify a workpiece on the workpiece holder as a bad or defective workpiece when it has been incorrectly machined. This is done by moving the signal carrier from a so-called "good" position to a "bad" or "bad" position by means of an adjusting device mounted on the work or processing station.Such a coding device is It is also used to code the number of different operations to be carried out on the workpiece. However, this system cannot be used in all cases, since the adjustable parts must be constantly monitored and This is because the cost and space required for the additional equipment are large (and furthermore, post-processing of the obtained data, especially with an electronic control unit, requires a tremendous amount of cost).

OBJECTS OF THE INVENTION The object of the invention is a method and a device for identifying a workpiece holder, in particular for fully automatic manufacturing installations, in which a signal carrier is arranged on the workpiece holder and which provides a wide variety of identification possibilities. In addition, it is possible to easily and reliably read and post-process the input signal from the signal carrier by means of electronic data processing equipment, as well as to detect any workpieces along the transport path in the production facility. It is an object of the present invention to provide something that can constantly monitor the movement of a holder and can be adapted to each individual workpiece holder using data specific to the workpiece.

Structure of the method of the present invention The gist of the method of the present invention that achieves the above objects is that, in the method mentioned at the beginning, a large number of signal carriers are arranged in a plurality of rows located side by side with each other so as to extend in the direction of movement of the workpiece holder. and in such a way that they are arranged in such a way that they are also located in detection rows extending at right angles to the longitudinal direction of these rows, and in each detection row one signal carrier is located in one row. .

An advantage of the inventive method is that it provides the possibility of simply and permanently identifying a large number of workpiece supports by means of different workpiece identification symbols.

In one embodiment of the method of the invention, each workpiece holder is oppositely arranged in different rows of signal carriers, and the workpiece holder identification symbol resulting from the arrangement of the signal carriers is After the end of a correctly carried out assembly or machining, the subsequent operation or machining station is subsequently supplied.The possibility of different identification of each workpiece holder allows each workpiece holder to be assigned a specific workpiece identification. Assign symbols so that each workpiece can be tracked and monitored as it travels through the production facility, or each workpiece identification symbol can be associated with the condition or assembly status of the workpiece or tolerance limits, test results. specific information about etc. can be associated.

In a further embodiment of the method according to the invention, only the workpiece holder with the workpiece identification symbol stored in the workpiece identification symbol memory corresponding to the operation or machining station is used in this operation or machining station. Stop, fix and process in the processing station. In this way, further assembly or processing of a defective workpiece is prevented or the production of defective products is suppressed without requiring a change in the code of the workpiece holder.

In a further embodiment of the method of the invention, the signal carriers in each column are associated with identification numbers by means of a binary numeric code, and the signal carriers located in the clock column and corresponding to all detection columns are used to register shift registers. detecting the presence of a signal carrier in another column while switching the signal carrier, and after the detection of the last detected column, transmitting the binary value sum from the shift register and in particular to the next operation or processing station. The workpiece holder identification symbol memory is further input into the memory. 2 for each signal carrier
The ability to associate numerical codes makes it possible to form a large number of different workpiece carrier identification symbols with a relatively small number of signal carriers.

Furthermore, the reading or coding device for detecting the signal carrier can be constructed very simply and the data obtained can be further processed simply and with high precision.

In a further embodiment of the inventive method, a plurality of workpieces or workpiece receptacles are arranged one behind the other in the direction of movement on the workpiece holder, one of the rows being aligned with the other. arranging a signal carrier corresponding to each workpiece or workpiece receptacle and detecting this signal carrier in conjunction with a signal carrier arranged in the detection array on the workpiece holder; Determine the respective workpiece or workpiece receptacle. In this way, the position of the workpiece holder and the position of the workpiece arranged on the workpiece holder can also be defined by means of the identification symbol specific to the workpiece holder.

In a further embodiment of the method, an output signal is generated at the output of the detection mechanism associated with each column upon passage of the first detection column in the direction of movement of the workpiece holder. This ensures that the correct start of the respective detection process is detected and that false detections of identification symbols are avoided.

According to a further embodiment of the inventive method, after passing the adjustable signal carrier corresponding to the assembly part or workpiece holder through a reading device which detects its switching position, By forcing the adjustable signal carrier into the actuated switching position which defines a "bad" coding, and then following the normal implementation of the processing and/or assembly process, the adjustable signal carrier is assigned a "good" coding. to the specified switching position.

In this way, mechanical good/bad calls can be made independently of the code signal for detecting the workpiece holder identification symbol, and the respective good/bad states can be communicated from each work station to other work stations. is not transmitted through intermediate memory.

Structure of the device according to the invention The invention furthermore provides a device for identifying workpiece holders in a production installation with working or processing stations or storage stations arranged one behind the other in the transport direction along a transport path. , a signal carrier is arranged on the workpiece holder, a reading or coding device is arranged along the conveying path, and a control device of the production equipment is connected to this reading or coding device. The gist of the invention is that the signal carrier device or the signal carrier plate has signal carriers arranged in a plurality of rows extending parallel to the direction of movement of the workpiece holder. , the signal carriers projecting relative to the surface of the signal carrier plate and/or are arranged movably adjustable relative to this surface and are arranged at a distance from one another in the direction of movement of the workpiece holder. and that a detection mechanism is arranged in the reading or encoding device, which is located opposite each row of signal carriers.

Due to the parallel detection of the effect signal carriers of the device according to the invention, a large number of information can be stored in an exactly reproducible manner over a short longitudinal range.

Embodiments of the device according to the invention and their effects In one embodiment of the device according to the invention, the signal carriers are also located in detection rows which are in mutually adjacent rows and extend at right angles to this row; In each row, one signal carrier is arranged in the first detection row in the direction of workpiece holder movement.

Such a special arrangement of the signal carriers provides an accurate correspondence of the respective information and thus a reliable detection of the information.

In a further embodiment of the device according to the invention, the detection rows are arranged one behind the other at equal distances in the direction of movement of the workpiece holder. With this arrangement, fluctuations in the speed of movement of the workpiece holder do not adversely affect the detection result of the signal carrier.

In a particularly advantageous embodiment of the device according to the invention, one signal carrier is arranged in each detection column in the clock train, and a detection mechanism is arranged in the reading or encoding device corresponding to this clock train. The output of the shift register is connected to the drive device of the shift register, and in each renostar of the shift register,
The number of signal carriers detected in each detection column is stored, and the output of each register is connected via a multiplier element to a counter for the detection of the workpiece carrier identification symbol.

With this configuration, clock-dependent recording of information is guaranteed, and information processing becomes possible in a variety of ways using known control devices, such as shift registers or microprocessors.

In a further embodiment of the device according to the invention, the signal carrier is removably connected to the signal carrier device or the signal carrier plate via a coupling and/or is designed as a code memory, and the signal carrier A code memory is arranged, to which a code or de:7-J:'' element corresponds in the reading or encoding device.The advantage of this embodiment is that each workpiece holder When changing the body, the workpiece identification symbol can be easily adapted or renumbered.In conjunction with an additional code memory provided on the signal carrier, the workpiece identification symbol can be easily changed. Additionally, additional information can be stored on the signal carrier or on the signal carrier device.

In a further advantageous embodiment of the device according to the invention, in a connection respectively associated with one of a plurality of workpieces or workpiece receptacles arranged one behind the other on the workpiece holder in the direction of movement of the workpiece holder. A signal carrier is inserted into. Thereby, the signal carrier according to the invention can also be used for positioning individual workpieces or workpiece receptacles.

In a further particularly advantageous embodiment of the device according to the invention, the signal carrier is formed by a metal surface that projects relative to the signal carrier plate, and the detection mechanism associated with each row is arranged in electromagnetic proximity. It is formed from a switch. In this way, standard components can be used for the detection of the signal carrier, and these components can also be used, for example, in highly contaminated areas of production equipment.

In a further embodiment of the device according to the invention, the workpiece holder and/or the component holder and/or the assembly plate arranged thereon are associated with a specific signal carrier device or signal carrier plate; In addition, a reading or encoding device specific to the signal carrier device is associated. This advantageous arrangement of the signal carriers ensures that in a number of different workpiece holders or corresponding component holders or assembly plates, corresponding components can be guided together by the same workpiece holder identification symbol or manufactured. e.g. post-assembly to various ranges of equipment,
The position of each workpiece holder or component holder or assembly board that is supplied for further processing, magazineization or storage can be recorded in each case.

In a further advantageous embodiment of the device according to the invention, the signal carrier is arranged on the side of the workpiece holder or component holder or assembly plate or the like. This easily prevents the accumulation of dirt and allows a satisfactory detection of the signal carrier as well as its easy cleaning.

According to a further embodiment of the device according to the invention, the signal carrier is
arranged on the signal carrier device or signal carrier plate in the −1 plane parallel to the underside of the workpiece holder or component holder or assembly plate or the like, and the signal carrier is arranged on the signal carrier device or on the signal carrier plate, and It is located on the side opposite the assembled part or workpiece. This protects the signal carrier from damage due to chip build-up or falling workpieces or the like.

In a further embodiment of the device according to the invention, a signal carrier is arranged in one detection column and is movable relative to the other signal carriers, the signal carrier being formed by a cylinder-piston arrangement. can be moved from an activated switching position corresponding to the reading device to an inactivated switching position remote from this position via a coding device, and the activated switching position corresponds to a defective part or a defective workpiece. ing. With this configuration, electrical processing of the workpiece holder identification symbol and mechanical "good/bad" coding can be combined. At each work station, if the adjustable signal carrier is moved to the switching position indicating the "bad" to 12 coding, then in the absence of the "good" coding which takes place after the working process, it will itself indicate the "good" code. The workpiece holder located in the condition is coded as ``1 Fault''. The opposite cannot be done.

According to a further embodiment of the device according to the invention, an adjustable signal carrier is associated with the workpiece holder and/or with the component holder and/or with the assembly part or workpiece arranged on the assembly plate. There is. This allows one work station's r-good/bad J-coding to be transmitted to other stations via the EDV-coupling.

Example A detailed description of the invention will now be described with reference to the drawings.

In FIG. 1, a conveyor path 2 and a workpiece holder movable along the conveyor path 2 in the forward direction (arrow 3) are shown in the production equipment 1. In order to guide the workpiece holder 4 in the height direction, rollers 5 are used which move along the height guide path 6'' of the transport path 2. Lateral guidance is provided by two rollers 7 rotatable about vertical axes. One of the two rollers 7 is connected to the drive motor, preferably via a slip clutch.

The workpiece holder 4 is entrained by frictional engagement via the pressing force created between the two rollers 7. Signal carriers 9 to 18 are arranged on one of the vertical sides 8 of the workpiece holder via a signal carrier arrangement or signal carrier plate 8'.

The signal carriers 9 to 15 are arranged in a clock train 21 extending parallel to the forward direction - arrow 3;
, 16-20 are arranged in column 22.

In the vertical direction signal carriers 9; 1o and 2o; 11 and 19
; 12 and 18; 13 and 17; 14 and 15; and 16 form detection rows 23 to 29, respectively.

A reading or encoding device 31 is assigned to these detection columns 23 to 29 in the area of a working or processing station 30 . 1 for each column 21.22 to detect or confirm the presence of signal carriers 9-20.
Two detection mechanisms 32.33 are arranged one above the other in one vertical plane, and these detection mechanisms 32.33 are formed by electromagnetic proximity switches 34.35, also called pulse generators. The detection mechanism 33 is placed opposite the clock train 21 , and the detection mechanism 32 is placed opposite the train 22 . When the signal carrier plate 8' passes in the vicinity of the detection arrangement 32.33, if a signal carrier is present in the detection rows 23-29, the proximity switch 34.35 is detected via the metal surface 36 arranged on the signal carrier. is excited, which causes the detection mechanism 33
Alternatively, a signal is applied to the shift register 39 from outputs 37 or 38 of 32 or, if appropriate, from both outputs 37, 38 simultaneously. In the clock train 21, the signal carriers 9 to 15 are arranged in each of the detection trains 23 to 29, so that the clock pulses ξ are transmitted from the output section 37 of the detection mechanism 33 at equal intervals to the drive device 40 of the shift register 39.
supplied to By this clock ξ pulse, the output section 38 of the detection mechanism 32 is connected one by one to the seven registers 41 to 47 arranged one after the other. When all the signals of the seven detection columns 23-29 are input, in this embodiment, the registers 42, 43, 44, 45, 47
The signals stored in are fed to a counter 49 via a multiplier element 48 connected to each output of the register and summed there. In the illustrated embodiment, the signal carrier columns within column 22 display the number "47" in a binary numeric code. Of course, for this to occur, the signal carrier 19, which is shown removed from the connection 50 in FIG.
It goes without saying that the connector must actually be inserted into the 50 connecting parts.

The signal carrier is shown extracted from the connecting part.
It is only shown that this signal carrier 19 can be attached exchangeably to the signal carrier plate. Such an exchange of the signal carriers results in a workpiece holder identification symbol 51 resulting from the sum of the binary numbers of the signal carriers arranged on the signal carrier plate 8'.
can be changed arbitrarily.

Furthermore, it is shown that the signal carrier 17 can be constructed as a code-F memory 52 and can be provided with a magnetic track 53 for this purpose. For reading this magnetic track 53, a code or decode element 54 is arranged opposite the read or code device 31.

A further control device 5 is provided at the work or processing station 30.
5 corresponds thereto, and this control device 55 has a workpiece holder identification symbol memory 56. This workpiece holder identification symbol memory 56 stores the workpiece holder identification symbol issued for processing by a preceding operation or machining station. The workpiece holder identification symbol 51 is compared in the comparator 57 with the workpiece holder identification symbol stored in the workpiece holder identification symbol memory 56, and the workpiece holder identification symbol 51 is stored. It will be checked if there is. When it is confirmed that the workpiece has been accumulated, the workpiece holder 4
is stopped and positioned within the processing station 30,
A component 58 is attached to the workpiece 60 by means of the operating device 59 or the workpiece 60 is machined. This process is controlled or monitored by control device 55 via input or output 61 . If the work process is carried out normally, the workpiece holder identification symbol is transferred from the control device 55 to the workpiece holder identification symbol memory 62 of the next operation, processing station, test station, check station or storage station. be done.

Due to the special configuration of the device for identifying the workpiece holder, it is possible to identify defective workpieces without any special defective goggles or changes in the workpiece holder identification code 51. It can be rejected in the next operation or processing station and supplied to a post-processing station or reject storage.

FIG. 2 shows a production facility with a rectangular circulating conveyor path 64, which includes further conveyor paths 65 to 6.
7 are connected via a deflection station 68. Workpiece holder 69 moved along this conveyance path 64
, 70 is similarly carried out at deflection station 68. A plurality of working or processing stations 71 , 72 , 73 are arranged along the transport path 64 . These working or processing stations can be formed by so-called technical equipment, such as tumble riveting machines, screw machines, pressing machines, welding machines, or by operating machines, manipulators, joining machines and the like. can. In order to be able to monitor the movement of the individual workpiece holders, only two of which are shown for simplicity of the drawing, throughout the production facility 63, the workpiece holders 6
9.70 is equipped with a signal carrier 19. The movement of the individual workpiece holders along the different transport paths 64 to 67 by means of a reading or coding device 74 located opposite the individual work or processing station 71 to 73 or before or after the deflection station 68 can be controlled and at the same time monitored or checked the performed work. For this purpose, the individual working or processing stations, fffi stations 68 and the individual reading or encoding devices 74 are connected to a central control unit 75.
It is connected to the.

In the illustrated embodiment, the workpiece holder 69,70 is constructed from several parts. For example, an assembly plate for the workpiece 77 is arranged in the workpiece holder 69, and a part holder 7δ for the parts 79 necessary for assembling the workpiece 77 is arranged in a replaceable manner in the workpiece holder 70. ing. In order to be able to constantly monitor each part of the workpiece holder or the assembly plate and the component holder 78 in the entire manufacturing apparatus 63, the assembly plate and the component holder 78 are equipped with signal carrier devices 80, 81 or The signal carrier plate is located in the same place. In order to detect this signal carrier device 80.81, a specific reading or coding device 82.83 is arranged vertically offset so that the individual signal carrier or signal carrier device can be detected without interference. Detection is possible.

Furthermore, the signal carrier device 80.81 is connected to the workpiece holder 69.7.
As in 0, the assembly plate or component holder 78
Detection of these signal carriers can be carried out by a reading or encoding device 74. In order to distinguish between the individual workpiece carrier parts or assembly plates and the component carrier, different signal carriers can be applied to different parts in the forward detection row in the direction of advance - arrow 3 in FIG. It can be placed as follows.

FIG. 3 shows a further embodiment of the device 84 for identifying the workpiece holder 85, in this variant embodiment the workpiece holder 85 is oriented in the forward direction - arrow 3. It has a plurality of workpiece receptacles for the parts 58 arranged one after the other. The construction of the transport path or workpiece holder in this case substantially corresponds to the production installation 1 shown in FIG. 1, so that identical parts are designated with the same reference numerals. A signal carrier device or signal carrier plate 87 is arranged on the side of the workpiece holder 85 . Signal carrier device or signal carrier plate 87
Above, signal carriers 9 to 15 are arranged in a clock train 21 extending parallel to the forward direction - arrow 5.
The signal carriers 88 and 16-20 are arranged in a row 22. In this embodiment, a further column 89 is arranged between the clock columns 21 and 22, in which signal carriers 90-92 are arranged. The signal carriers 88, 90 and 9 form the detection column 23 when viewed in the vertical direction, the other signal carriers forming the detection column 23 as described in detail in FIG.
4 to 29 are formed. However, in contrast to the embodiment according to FIG. 1, signal carriers 91,92 are inserted between signal carriers 11 and 19 or 13 and 17 in the connection of column 89 in detection columns 25 and 27, respectively. There is. As indicated by thin lines 93, the position of the signal carriers 91,92 is in the direction of advance of the workpiece holder 85 - arrow δ- in the workpiece receptacles 86 spaced apart from each other for the workpiece 60. It is adjusted to. Workpiece holder 8 as shown in FIG.
5, when the rear workpiece 60 in the direction of advance - arrow 3 - is in the machining position 16' indicated by the actuating device 59, the signal carrier 92 is also located within the range of the reading or coding device 94. This reading or encoding device 94
The structure corresponds to the reading or encoding device designated 31 in FIG. In the reading or encoding device 31 shown in FIG.
4, the two detection mechanisms 32, 33L are not placed opposite each other, whereas in the reading or encoding device 94, another detection mechanism 95 is arranged between the two detection mechanisms.

This detection mechanism 95 is placed opposite the signal carriers 90 to 92 of column δ9. This signal carrier 92 is located in the area of a detection mechanism 95, which in the illustrated embodiment is formed by a proximity switch 96. Proximity switch 96 may be an electromagnetic proximity switch as described in FIG. This proximity switch cooperates with a signal carrier 90-92 made of metal or having metal parts. However, the proximity switch can also be any similar type of control device, for example an infrared detector or a reflective optoelectronic device or a Hall generator or the like. As mentioned in the description of FIG. 1, when the workpiece holder 85 passes the reading or converting device 94, the number of signal carriers in the row 21 or 22 changes to the approach switch 34.3.
Detected by 5. Each signal carrier in each case produces a signal at the output of the proximity switch 34,35.

This signal is transmitted to shift register 39.

However, a further memory, which can be configured as a shift register 97, for example, is arranged behind the reading or encoding device 94. The drive O of this shift register 97 is likewise loaded with a tarok signal coming from the detection mechanism 33. In this case as well, the output section of the detection mechanism 95 is sequentially connected to one of a plurality of registers (only two registers 98 and 99 are shown in the figure) in accordance with the input clock ξ pulse. A counter 100 is connected to the output section of the registers 98 and 99. This counter 100 displays the respective position of the workpiece holder detected by the signal carrier 91 or 92. At the same time, the indication of the detection mechanism 95 is used as a response to the control device 55 of the work or machining station 30 to move the workpiece holder to the machining station opposite the second workpiece 60 in this embodiment. fixed to, and the working process,
For example, the insertion of the component 58 using the operating device 59 is triggered. When all the identification symbols of the workpiece holder 85 have been read, the identification symbols are compared in the comparator 57 with the workpiece holder identification symbols stored in the workpiece holder identification symbol memory 56. At the same time, the output signal of the shift register 97 is fed to a comparator 57 1, which informs the control device whether both workpieces 60 have already passed through the working or machining station. in this case,
A monitoring mechanism 102 can be interposed between the outputs of the registers 98, 99 so that incomplete work or non-performance of the assembly process can be indicated at the same time. This monitoring mechanism causes the comparator 57 to input the identification symbol stored in the register 98, 99 only when the working process or assembly process defined by the control device 55 has been carried out correctly.

Therefore, in the workpiece identification symbol memory 62 of a subsequent operation or machining station, only the correctly machined or assembled workpiece identification symbol with the respective workpiece position number is stored from the control device. Incomplete workpieces are not processed further and cannot be assembled.

This avoids, in particular, unnecessary costs or incomplete assembly processes on the workpiece.

FIG. 4 shows a device 10 for identifying the workpiece holder 104.
3 is illustrated, in which the signal carrier device 10
6 or a signal carrier plate is fastened to the workpiece holder 104 by means of a removable fastening element 105. In the signal carrier device 106, signal carriers 110 to 112 are arranged in a plurality of rows 107 to 109 and in a plurality of detection rows one behind the other, as already explained in detail in FIGS. 1 to 3. ing. Further, as can be seen from FIG. 4, the signal carrier 112
is mounted in the guide so as to be adjustable in height relative to the signal carrier device 106. In short, the signal carrier 112, which is designed as a guide pin, can be adjusted from an inactive switching position 113, shown in solid lines, to an active switching position 114, shown in broken lines.

Opposed to the signal carriers 110-112 is a reading or encoding device 115 in which each column 1 of the signal carriers 110-112 is
Detection mechanisms 116 to 118 are arranged opposite to each other for each of 07-109. The detection mechanisms 116 to 118 can be designed correspondingly to the detection mechanisms 32, 33 or 95 already described.

Furthermore, as can be seen from FIG. 4, the detection mechanisms 116 to 118
The retainer holders 119 are connected to each other by means of a bayonet connection 120, which makes it easy to replace them with another detection mechanism if necessary.

Signal carriers 1 arranged in columns 107, 108, similar to the signal carriers in columns 21 and 22 shown in FIGS.
10, for example, the number of workpiece holders is detected and a clock pulse is emitted by the workpiece holder 104.
Signal carrier 1 of one or more workpieces located in
12 allows good/bad coding to be performed.

In short, when the signal carrier 112 is in the inactive switching position shown by the solid line (in this inactive switching position the detection mechanism 118 does not change its switching state when the signal carrier 112 passes), this This indicates whether the preceding work process or assembly process is being carried out normally and whether the process is good or bad.

When the signal carrier 112 is moved into the operating position indicated by the dashed line, a defect in the workpiece corresponding to the signal carrier is detected and this results in a defective coding.

The signal carriers 110-112 are arranged on the underside 121 of the signal carrier device 105 or the signal carrier plate. This bottom surface 1
21 is located in a plane parallel to the lower surface 122 of the workpiece holder 104, and the workpiece 60 is located on the upper surface of the workpiece holder. contamination of the signal carrier and thus deterioration of the identification is avoided. Furthermore, this also protects the signal carrier from mechanical damage, such as from falling objects. Furthermore, it is of course possible to arrange a plurality of adjustable signal carriers 112 in the longitudinal direction of the signal carrier device 105 or the signal carrier plate. Furthermore, instead of three rows 107 to 109 of signal carriers next to each other, for example the detection rows 21.22 and 89 shown in FIG. , adjustable signal carrier 112 can of course be arranged. According to such an arrangement, within each work station an adjustable signal carrier 1 is provided.
12, it is possible to detect whether the parts are good or defective, so that the control device 55 is easily notified of the working status or the normal execution status of the assembly process.

If an adjustable signal carrier 112 is used, a mechanically stationary guide slide is provided with a detection mechanism which moves this adjustable signal carrier 112 into a lower actuating position 114 indicating a fault code before the introduction of the working process. It is advantageous to arrange it behind 118. In that case, an adjusting drive movable in the adjusting direction towards the signal carrier device 105 or the lower side 121 of the signal carrier plate is placed opposite the adjustable signal carrier 112 in the rest position range of the workpiece holder during the working process. It is effective to keep it. In this way, after the end of a normally carried out working or assembly process, the adjustable signal carrier 112 is moved into the deactivated switching position 113, which indicates a "good" coding. The advantage of this configuration of the coding device is that even if the work or assembly process has been carried out normally, in the worst case the workpiece holder or workpiece can be detected as "defective" if the control device becomes inoperable. It is to be encoded as . However, it is of course to be avoided in any case that workpieces that cannot be processed or assembled correctly are coded as "good" and sent to another work process.

Within the framework of the invention and without departing from this framework,
The signal carrier device, that is to say the signal carrier and possibly the signal carrier plate containing it, can be constructed in any desired manner or made from any material. For example, the signal carrier plate and optionally the signal carrier can be made of plastic, and metal plates, permanent magnets or the like can be embedded in this plastic part, preferably by foaming or by injection, so that they can cooperate with the detection mechanism. . Furthermore, it is also possible to produce the signal carriers by mechanical processing of the signal carrier plates, or to produce signal carrier plates of the same shape from plastic by foaming or injection methods and to activate each signal carrier by gluing or pressing a metal surface. It is possible. If the signal carriers are simultaneously constructed as a code memory, it is possible to use magnetic tracks embedded in each signal carrier or signals transmitted in another way.

Likewise, the design of the reading device or coding device or decoder and the decoder can be varied as desired within the framework of known technology; e.g. electromagnetic proximity switches, e.g. laser detectors instead of reflective optoelectronic devices. , opto-electric detectors, thermomechanisms and the like can be used.

The arrangement of the signal carrier or signal carrier device or signal carrier plate on each component holder or assembly plate can be freely selected.

For example, instead of arranging the signal carrier or the signal carrier device or the signal carrier plate on the vertical side, it is also possible to mount it on the underside of the component holder or the mounting plate, in short, if it is arranged so that it can be accessed for detection. good. If the workpiece holder or other parts in production installations equipped with signal carriers of this type are frequently replaced, it is advantageous for the signal carrier sheet metal body or the entire signal carrier arrangement to be constructed in a replaceable manner.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of an identification device according to a first embodiment of the present invention, and FIG. 2 is a schematic plan view of a manufacturing facility in which identification devices according to an embodiment of the present invention are arranged at key points. FIG. 3 is a schematic perspective view of an identification device according to a second embodiment of the present invention and a fourth embodiment of the identification device.
The figure is a schematic side view, partially in section, of an additional coding device of an identification device according to an embodiment of the invention. 1... Manufacturing equipment, 2... Conveyance path, 3... Arrow, 4...
...Workpiece holder, 5.Roller, 6.Height guide path, 7.Roller, 8.Side surface, δ'...-Signal carrier plate,
9゜10.11, 12.13, 14, 15, 16゜17
．． 18.19.20...Signal carrier, 21...Clock column, 22...Column, 23.24.25,26°27.28.
29. Detection train, 30. Working or processing station, 31. Reading or encoding device, 32. 33.
, detection mechanism, 34, 35... approach switch, 36...
・Metal surface, 37.38... Output section, 39... Shift register, 40..., Drive device, 41.42.43.45
．． 46.47...Register, 48...Multiplication element, 49
...-Counter, 50... Connecting portion, 51... Workpiece holder identification symbol, 52... Code P memory, 53... Magnetic track, 5... Code or deco P element, 55
. . . Control device, 56. Workpiece holder identification symbol memory, 57. Comparator, 58. Components, 59. Operating device, 60. Workpiece, 61.. Output unit, 62.・Workpiece holder identification symbol memory, 63...-manufacturing equipment, 64, 6
5.66.67...Conveyance path, 68...Deflection station, 69.70...Workpiece holder, 71,72.73...
... working or processing station, 74... reading or encoding device, 75..., central control unit, 77...
... Workpiece, 78 - Parts holder, 79 ... Parts, 80
．． 81.Signal carrier device or signal carrier plate, 82.83
. . . reading or encoding device, 84 . . . device, 8
5... Workpiece holder, 86... Workpiece receiving part, 87...
- Signal carrier device or signal carrier plate, 88...Signal carrier, 89...Column, 90.91.92...Signal carrier, 9
3... line, 94... reading or encoding device,
95...detection mechanism, 96...approach switch, 97...
・Shift register, 98.99... register, 100
...Counter, 101...Switching mechanism, 102...Monitoring mechanism, 103...Device, 104...Workpiece holder,
105... Fixing member, 106... Signal carrier device or signal carrier plate, 107.108.109... Row, 1
10,111.112...Signal carrier, 113...Inactive switching position, 114...Activating switching position, 115...
Reading or encoding device, 116.117.118
...Detection mechanism, 119...Holding body, 120...Plug-in coupling part, 1?1.122...Bottom surface

Claims (1)

[Claims] 1. The workpiece holder overflows the conveyor path and is supplied to various successive operations or processing stations, and at each station parts are placed or supplied onto the workpiece holder. During machining or machining, incomplete assembly or machining causes a defect signal to be assigned to the workpiece holder that receives the workpiece, so that the workpiece is not machined in a subsequent operation or machining station. Manufacturing equipment that supplies waste or defective products to a discharge point or a discharge point for post-processing;
In a method for coding workpiece holders in manufacturing installations, in particular for the assembly of workpieces consisting of several parts, a large number of signal carriers (Q, 10.11.12, 13, 14, 1
5, 16, 17. 18, 19, 20, 88, 90, 91
92.110.1'11.112), a plurality of rows (21, 22, 89, 107, 108, 109) located next to each other so as to extend in the workpiece holder movement direction (3).
Detection rows (23, 24, 25, 26, 27, 2
8, 29), and in each detection column (23, 24, 25, 26, 27, 28, 29), one column (21, 1c) 7) Method for identifying workpieces in production equipment, characterized in that signal carriers (9° 10.11, 12, 13.14.15) are located. 2. Each workpiece holder (4, 69, 70, 85. 104) has another row (22, 89, 108, 109)
Signal carriers (16, 17, 1
8, 19, 20, 88, 90, 91, 92, 110, 1
11, 11'2) are placed opposite each other, and the signal carriers (16, 17, 1
8, 19, 20, 88, 90, Ql, 92.110.1
11, 112) to a subsequent operation or machining station after the completion of a properly carried out assembly or machining. Identification method described. 3 Working or processing station (30; 71.72
．． Workpiece holder identification symbol memo IJ (
Workpiece holder (4,6Q, '70,
85, 104) is stopped, fixed and processed in this working or processing station (30; 71, 72, 73). 4. Each column (21, 22, 89, 107, 108, 109
) in signal carriers (16, 17, 18, 19, 2o, 8a
, qo, 91,92,110.111,112) VC2
- a signal carrier (23, 24° 25. 26, 27, 2δ, 29) corresponding to the identification digits with a common numerical code and located in the Cronk column (21) and corresponding to all detection columns (23, 24° 25. 26, 27, 2δ, 29);
9, 10, 11, 12, 13, 14, 15) while switching the shift register (39°97) to another column (2
No. i carrier (16,1
7, 18, 19, 20, 88, 90, 91, 92, 11
0,111,112), and the last detected sequence (
29), the binary numerical sum is transmitted from the shift register (39, 97) to the counter (4 to 1,100) and in particular identifies the workpiece holder in the next operation or machining station. The identification method according to any one of claims 1 to 3, in which a symbol memo 'J (, 62) is inserted. 5. A plurality of workpieces or workpiece receptacles are arranged one after the other in the direction of movement on the workpiece holder, each workpiece in one of the rows (107, 108, 109) next to one another. (60) or the signal carrier (91, 9) corresponding to the workpiece receiving part (86).
2,111,112) and this signal carrier in relation to the signal carrier (9, lo. 11.12, 13, 14.15) arranged in the detection column (21). Any of claims 1 to 4 for jointly detecting and determining the respective workpiece (60) or workpiece receptacle (86) on the workpiece holder (85, 104). or the identification method described in paragraph 1. 6. When passing the first detection row (23) in the workpiece holder movement direction, each row (21, 22, 89° 107, 108, 1
Detection mechanism (32, 33, 95, 116) corresponding to 09)
, 117, 118). 7. Assembly parts or workpiece holders (4, 69, 70,
85, 104).
) of the assembly or workpiece (60) after passing through a reading device (115) that detects its switching position.
After the normal operating pressure of the machining and/or assembly process, the adjustable signal carrier (
112) to the switching position (11
3) The identification method according to any one of claims 1 to 6. 8. A device for identifying a workpiece holder of a production installation with working or processing stations or storage stations arranged one behind the other in the direction of transport along a conveyor path, the workpiece holder being equipped with a signal carrier. is arranged, a reading or coding device is arranged along the conveyance path, and a control device for the manufacturing equipment is connected to this reading or coding device,
Signal carrier device or signal carrier plate (8', 80, 8
1, 87. 105) are arranged in a plurality of rows (21, 22° 89, 107, 108) extending parallel to the workpiece holder movement direction (3)K
．． signal carriers (9, 10, l) arranged in the form of
i, 12°13,14,15,16.17,18,19
．． 20, 88, 90, 110, 111, 112), and this signal carrier has a signal carrier plate (8', 80, 8
1, 87, 105) and/or arranged movably adjustable relative to this surface and spaced apart from each other in the direction of movement of the workpiece holder (3). and a signal carrier (9, 10) in said reading or encoding device (31, 94, 115).
,11,12゜13.14.15;9.16.17.1
8゜19.20; 88.16, 17.18, 19.20
;90,91,92;110;111;112) Detection mechanisms (32,33,95,116,117,
118) A workpiece identification device in a manufacturing facility, characterized in that: 9. Signal carrier (9, 10, 11, 12, 13゜14.
15, 16.17, 18.19', 20.88, 90,
91.92, 110, 111.112) are adjacent to each other (21, 22, 89, 107, 108, 109)
A detection column (2
3, 24, 25, 26, 27, 28, 29), and each column (21゜22.89.107.1
08,109) in the first detection row (23) in the direction of workpiece holder movement.
, 110, 111, 112) are arranged. 10, Detection row (23, 24, 25, 26, 27° 2B,
10. The identification device according to claim 8, wherein the identification devices 29) are arranged one behind the other at equal intervals in the direction of movement of the workpiece holder (3). 11. Each detection column (23, 24) is in the clock column (21).
, 25, 26, 27, 28, 29), one signal carrier (9, 10, 11, 12゜13.14.15.16) is placed in the clock train (21)K. The output (37) of the detection mechanism (33) arranged in the reading or encoding device (31) is connected to the shift register (39).
, 97), and each register (41, 42, 43, 44) of the shift register (39, 97).
, 45; 46.47.98.99), each detection column (2
signal carriers (9,16,17,18,19,20,
88, 90, 91° 92. 110, 111, 112) are stored, and each register (+1.42, 43...
44, 45, 46, 47, 98, 99) via the multiplier element (48), the workpiece holder identification symbol (51)
Identification device according to any one of claims 8 to 10, connected to a counter (49) for the detection of. 12, the signal carrier (19, 90, 91, 92) is connected to the connecting part (
50) is removably connected to the signal carrier device or signal carrier plate (8', 80.81° 87.105) and/or is configured as a code memory (52) and is connected to the signal carrier device or the signal carrier plate (8', 80.81° 87.105) (17) Code memory (53)
is arranged in the code memory in which a code or decoding element (54) is inserted in the reading or coding device.
) corresponds to the identification device according to any one of claims 8 to 11. 13. A plurality of workpieces (60) arranged on the workpiece holder (85, 104) one behind the other in the direction of movement of the workpiece holder
Alternatively, a signal carrier (90, 91, 9
Claims 8 to 12 in which 2) is inserted
The identification device according to any one of the preceding paragraphs. 14, Signal carrier (9, 10, 11, 12, 13゜1
4.15, 16.17.18, 19, 20, δ8,90
, 91.92.110, 111.112) is formed by a metal surface (36) projecting in contrast to the signal carrier plate (8', 80.81° 87.105), and each row ( Detection mechanism (32, 33, 95, 116, 117,
118) is an electromagnetic proximity switch (34, 35, 96)
) Claims 8 to 13 formed from
The identification device according to any one of the preceding paragraphs. 15 Workpiece holder (4, 69, 70, 85, 104
) and/or the component holder (78) and/or assembly plate (76) arranged thereon correspond to a specific signal carrier device or signal carrier plate (80, 81), and
15. Identification device according to claim 8, characterized in that the signal carrier device (80, 81) is associated with a specific reading or coding device (82, 83). 16, signal carrier (9, 10, 11, 12, 13゜14.
15.16.17,18,19,20.88,90,9
1.92) is arranged - on the side of the workpiece holder (4, 85) or the part holder (7δ) or the assembly plate or the like; The identification device according to item 1. 17, the signal carrier (110, 111, 112) is located on the underside (12
2) is arranged in a plane parallel to the signal carrier device or signal carrier plate (8', 80, 81, 87, 105), and the signal carrier (110, 111, 112)
is an assembly part or workpiece (60) of a signal carrier device.
The identification device according to any one of claims 8 to 16, which is arranged on the opposite side of the identification device. 18. In one detection column (109), another signal carrier (1
one signal carrier (1
12) is arranged, and this signal carrier (112) is
is movable via a coding device formed by a cylinder-piston arrangement from an activated switching position (114) corresponding to the reading device (115) into an inactive switching position (114) remote from this position; , operation switching position (1
14) Identification device according to any one of claims 8 to 17, wherein the identification device corresponds to a defective part or a defective workpiece (60). 19, Workpiece holder (4,6Q, 70.85.1
04) and/or the assembly part or workpiece (60) arranged on the assembly plate, an adjustable signal carrier (112) is associated therewith. identification device.